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Electronic Turbine Meter TRZ 03-TE(L)

OPERATING INSTRUCTIONS

Serving the Gas Industry Worldwide

STATUS MAY 2011

by Honeywell


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Note: Unfortunately, paperwork does not automatically update itself but technical developments are constantly being made. Therefore, we reserve the right to change the descriptions and statements contained in our operating instructions without prior notice. However, you can conveniently download the most recent version of this manual (and those of other devices) from our website www.rmg.com.

RMG Messtechnik GmbH Otto-Hahn-Str. 5 35510 Butzbach (Germany) Fax: +49 (0)6033 897-130 E-mail: RS-HPS-Messtechnik@Honeywell.com

Phone numbers: Switchboard: +49 (0)6033 897-0 Customer Service: +49 (0)6033 897-127 Spare Parts: +49 (0)6033 897-173

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CONTENTS

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INTRODUCTION................................................................................... 1 Scope of application .............................................................................................1 Method of operation .............................................................................................2 Approvals ..............................................................................................................3 Standards / Guidelines.........................................................................................3 Validity of meter proving ......................................................................................3 Measuring ranges .................................................................................................3 Extension of the measuring range........................................................................4 Accuracy of measurement....................................................................................5 Permissible temperature ranges ..........................................................................5 Pressure loss.........................................................................................................6 Pressure tap ..........................................................................................................7 Using gas meters with different types of gases ..................................................7

SAFETY INSTRUCTIONS...................................................................... 8 Instructions for the installer.................................................................................9

INSTALLATION AND COMMISSIONING............................................11 Installation ..........................................................................................................11 Perforated-plate straighteners ...........................................................................15 Seals ....................................................................................................................16 Screws and nuts..................................................................................................17 Meter head ..........................................................................................................17 Block diagram .....................................................................................................18 Power Supply ......................................................................................................19 Electrical connections ........................................................................................19 Installing the remote totalizing unit ...................................................................24 Temperature measurement ................................................................................25

COMMISSIONING..............................................................................26 Filling with oil ......................................................................................................26 Connecting the gas flow .....................................................................................26 Initializing the totalizing unit ..............................................................................26

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CONTENTS

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OPERATION .......................................................................................27 Display.................................................................................................................27 Programming.......................................................................................................29 Parameters and Modes of the TRZ 03-TE / TEL.................................................32 Influences on the error of measurement due to operation ...............................38 Lubrication ..........................................................................................................40 Changing the battery ..........................................................................................43 Maintenance instructions ...................................................................................44 Labelling ..............................................................................................................44

SPECIFICATIONS...............................................................................46 Measuring range .................................................................................................46 Measuring error ..................................................................................................46 Temperature ranges............................................................................................46 Inputs and outputs..............................................................................................46 Materials used for the meter case .....................................................................50 Examples of connection......................................................................................51 Overview of Parameters for the TRZ 03 TE / TEL ..............................................54 Measuring ranges/Dimensions/Pressure classes of TRZ 03-TE ......................55 Measuring ranges/Dimensions/Pressure classes of TRZ 03-TEL ....................56 Overview of the materials used..........................................................................57

ANNEX ...............................................................................................58 Matrix of the TRZ 03-TE / TEL ............................................................................58 Converting the TRZ 03-TE/TEL into the version with external supply and current output.....................................................................................................60 Cable type abbreviations ....................................................................................61 Basic type: Control cable (twisted cable)...........................................................61

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INTRODUCTION

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Introduction Scope of application The TRZ 03-TE and TRZ 03-TEL turbine meters are flow meters which can be used for custody transfer metering. Unlike these instruments, the TERZ 94 turbine meter can only be used for secondary metering. All three types of turbine meters measure the quantity of gas flowing through them in units of volume at prevailing pressure and temperature. Therefore, the units of volume are determined at flowing conditions. The volume of the gas flowing through and the flow rate are indicated by a mechanical totalizer in cubic meters at flowing conditions or m3/h respectively. In addition, the turbine meters can be fitted with HF or LF pulse transmitters and with reed contacts. In this way, pulses are obtained whose number is proportional to the volume which has flowed through. These pulses can be further processed by volume correctors.

1

The major differences between types TRZ 03-TE, TRZ 03-TEL or TERZ 94 are as follows: TRZ 03-TE    

Approved for custody transfer metering in compliance with DIN 33800. Installation length: 3 x DN Accuracy  0.5% (above 0.2 Qmax) 2-channel measurement

TRZ 03-TEL    

Approved for custody transfer metering in compliance with TR G13 / OIML. Requires no additional inlet pipe even in the case of heavy flow disturbances. Accuracy  0.5% (above 0.2 Qmax) 2-channel measurement

TERZ 94  For secondary metering.  Installation length:  1.5 x DN  Accuracy  1% (above 0.2 Qmax) The following applies to all meter types:  Maximum operating pressure: 100 bar (not for gas meters with a plastic turbine wheel)  Meter sizes from G 40 to G 16000  Measuring range 1:20; 1:30 or 1:50 (see data sheets)  Connections in compliance with DIN or ANSI are available.  Special designs for aggressive gases are available.  Available for low temperatures (< 10°C)  All gas meters can be operated in any position up to the nominal diameter of DN 200.  Flow monitoring  Alarm output  Meter head removable ...............................................................................................................................................................................................................


INTRODUCTION

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Method of operation

2

The method of operation of the electronic turbine meter is based on the measurement of the gas velocity. The velocity of the gas flowing through the gas meter is increased in the flow straightener and the gas strikes the turbine wheel in a defined flow cross section. In the flow straightener, unwanted vortices, turbulences and asymmetries are removed or reduced. The turbine wheel is mounted axially, while the blades of the turbine wheel are arranged at a certain angle to the gas flow. Within the measuring range (Qmin - Qmax), the rotational speed of the turbine wheel is almost proportional to the mean gas velocity and, therefore, to the rate of flow. The number of rotations is a measure of the volume that has flowed through. Two pulse-wire sensors pick up the rotational frequency of the turbine wheel by a non-contact measurement. For this purpose a permanent magnet is fixed at the end disc of the turbine shaft which induces one voltage pulse per rotation. These pulses are further processed by the electronic system of the meter head.

Index head 24 VDC

- 0085

!

O ring

EEx ib[ia] IIC T3/T4 II2G TÜV 02 ATEX 1970 -20°C  Tamb  +60°C/40°C EG-type examination certificate

Manufacturing Ser. No.: Current output 4-20mA

yes

no

IP65

Setscrew

Flow straightener Sensor sleeve

Thermowell (optional)

Sensor

Permanent magnet

Turbine wheel Pressure tap pr

Lubrication pump

Fig. 1: Sectional drawing of a turbine meter

For output – e.g. to a volume corrector or for control purposes – a HF pulse output (unchanged sensor frequency) or a NF pulse output (programmable scaling factor) are available.

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INTRODUCTION

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Approvals Types TRZ 03-TE and TRZ 03-TEL has been approved for custody transfer metering. The following approvals have been obtained: German approval No. 7.211/02.13 DVGW registration No. CE-0085BN0291 3

Standards / Guidelines All RMG turbine meters have passed the disturbance measurements in compliance with OIML Recommendation IR-32/89, Annex A, with slight and heavy flow disturbances. Therefore, this meter design meets the requirements for installation in compliance with Technical Guideline G 131), Sec. 1. Test specifications are as laid down in PTB Testing Instructions, Vol. 4, Volume gas meters, 2nd revised edition of 1992. The RMG turbine meters of type TRZ 03-TE and TRZ 03-TEL comply with DIN 33800.

Validity of meter proving The turbine meters of type TRZ 03 which are suitable for custody transfer metering must be subjected to subsequent meter proving at regular intervals. The validity of meter proving is determined in the German Metering and Calibration Rules issued in 1988 (with amendment of September 24,1992) and extends to five years for electronic turbine meters without a lubricator. Note: these periods are valid for Germany, in other countries the periods are normally different! In the case of subsequent meter proving, the gas meter must be removed and tested on a test rig.

Measuring ranges The measuring ranges are between 10 and 25,000 m3/h (flowing conditions). A measuring range is specified for each meter size. It is limited by the minimum flow rate Qmin and the maximum flow rate Qmax (see tables on pages 55 to 56). For types TRZ 03-TE and TRZ 03-TEL, this is the flow range where the gas meter must indicate correct values within the error limits specified by the German Metering and Calibration Rules.

1)

can be ordered at PTB, Bundesallee 100, D-38116 Braunschweig (www.ptb.de)

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INTRODUCTION

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Turbine meters of type TRZ 03-TE have measuring ranges up to 1:30 even under atmospheric pressure. If a high-pressure test is conducted in compliance with Technical Guideline G 71) (PTB), the measuring range can be extended to 1:50. Then the minimum flow rate Qmin HP is the lowest test point during high-pressure testing. Types TRZ 03-TE and TRZ 03-TEL may then be used for billing purposes within the specified HP flow and density ranges.

4

Extension of the measuring range In the range of 0.2 Qmax to Qmax, the measuring behaviour of turbine meters is determined by the aerodynamic conditions in the flow channel and the measuring cross section. By means of many series of tests conducted both under atmospheric pressure and under higher pressures and with an appropriate rating for such ranges, it is possible to achieve a deviation of the calibration curve under atmospheric conditions and under high-pressure conditions of < 0.5% in the flow range of 0.2 Qmax to Qmax. In the lower flow range, the measuring behaviour is determined by the relationship between the gas flow driving the measuring wheel and the slowing-down torques due to drags (bearings and totalizer). The driving torques increase linearly with the density and quadratically with the velocity of the gas to be measured. Due to the physical conditions, the measuring range is therefore enlarged in relation to the density. The lower flow limit shifts in the direction of smaller loads. Use the formula below as approximate equation:

Qmfl  Qmin 

1 .2 (m3 / h) 

The density  can be determined with the following approximate formula:

  (p m  1) x  n (kg / m 3 ) The influence of the temperature is not taken into account in this formula. Qmfl: Qmin: pm : : n: 1.2

1)

Minimum flow rate at flowing conditions Minimum flow rate of the gas meter Operating pressure in bar Density in kg/m3 Standard density of the gas n = standard density of natural gas  0.8 kg/m3 Density of air at 20oC and 1.01325 bar (in kg/m3)

can be ordered at PTB, Bundesallee 100, D-38116 Braunschweig (www.ptb.de)

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INTRODUCTION

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Accuracy of measurement The following error limits apply within the permissible measuring range: Measuring range: Calibration limit1) TRZ 03, TRZ 03-L TRZ 03-K

Qmin to 0.2 Qmax 2% 1%  2 % 2)

0.2 Qmax to Qmax 1%  0.5 % 1%

5

1) Permissible maximum error pursuant to the German Metering and Calibration Rules 2) DN 40 and DN 50: -3%, +2%

It will be checked whether these limits are observed. They also apply to the high-pressure range.

+

2

+

1

%

0

-

1

-

2 10

50

100

Fig. 1: Calibration curve of a turbine meter

The reproducibility, i.e. the difference between the results of two measurements under identical conditions, is as follows: TRZ 03:   0.2% TRZ 03-K:   0.5% TRZ 03-L:   0.2%

Permissible temperature ranges For the standard design, the following fluid temperature and ambient temperature ranges are permitted: Fluid temperature range: Ambient temperature range:

-10°C to +50°C -10°C to +60°C

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INTRODUCTION

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Pressure loss The pressure loss of RMG turbine meters has been reduced to a minimum thanks to modifications with regard to design. The measuring points for pressure loss are located 1 x DN upstream and downstream of the gas meter. The pressure loss is calculated using the following formula:

p  Zp   

6 where:

p Zp  Qm DN

Qm2 DN4

is the pressure loss is the pressure loss coefficient is the density is the volume flow rate at measurement conditions is the nominal diameter of the gas meter

Device type TRZ 03 / TRZ 03-K turbine meter TRZ 03-L turbine meter L1 perforated-plate straightener as per ISO/DIN L2 perforated-plate straightener as per ISO/DIN L3 perforated-plate straightener as per ISO/DIN LP-35 perforated-plate straightener as per RMG standard RB 19 tube-bundle straightener as per ISO/DIN

[mbar] [kg/m³] [m³/h] [mm] Zp 3000 3600 3150 6300 9450 1260 1260

The values for Zp are approximate mean values. The exact value is calculated from the pressure loss which is determined on testing the volumeter. Example of calculation: Calculation of the pressure loss for a turbine meter with upstream perforated-plate straightener. TRZ 03, Qm = 650 m3/h, DN 150,  = 1.3 kg/m3 (natural gas) From the table: Zp(TRZ03) = 3000, Zp(LP-35) = 1260 Calculation: Zp(total) = 3000 + 1260 = 4260

p  4260  1.3 

650 2  4.6mbar 150 4

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INTRODUCTION

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Pressure tap A pressure tap has been provided to connect the pressure transducer of a volume corrector or a pressure gauge to read the pressure at measurement conditions prevailing inside the gas meter. This pressure tap is identified by “pr”.

Using gas meters with different types of gases Gas type Acid gas Air Ammonia Argon Biogas Butane Carbon dioxide Carbon monoxide Ethane Ethylene (gaseous) Freon (gaseous) Helium Hydrogen Hydrogen sulphide (0.2%) Methane Natural gas Nitrogen Oxygen (100%) Pentane Propane Propylene (gaseous) Sulphur dioxide Town gas

Symbol

NH3 Ar C4H10 CO2 CO C2H6 C2H4 CCI2F2 He H2 H 2S CH4 N2 O2 C5H12 C3H8 C3H6 SO2

Density Meter case at 0°C 1.013 bar Special 1.29 Standard 0.77 Standard 1.78 Standard Special 2.70 Standard 1.98 Standard 1.25 Standard 1.36 Standard 1.26 Standard 5.66 Standard 0.18 Standard 0.09 Special 1.54 Special 0.72 Standard 0.8 Standard 1.25 Standard 1.43 Standard 3.46 Standard 2.02 Standard 1.92 Standard 2.93 Special Standard

7

Comments Special measuring element O-rings / lubrication Special measuring element Exception: food industry

Special design O-rings / lubrication Reduced measuring range Reduced measuring range Special measuring element

Special design

Special measuring element Special design

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SAFETY INSTRUCTIONS

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Safety Instructions The TRZ 03-TE and TRZ 03-TEL turbine meters are used for measuring the volume at measurement conditions of non-aggressive gases and fuel gases. Measurements of aggressive gases are only permitted if the special designs are used which have been developed for this purpose. These gas meters are not suitable for measuring liquids, otherwise they will be destroyed. 8

The TRZ 03-TE and TRZ 03-TEL turbine meters comply with currently applicable standards and regulations. However, failure to operate them properly may cause hazards. Persons who install or operate the TRZ 03-TE and TRZ 03-TEL turbine meters in areas subject to explosion hazards, must be familiar with the currently applicable standards and regulations with regard to explosion protection. The electronic totalizing unit of the explosion-protected design has been approved for use in areas subject to explosion hazards and its code is: II 2 G EEx ib[ia] IIC T3, T4 The appropriate certificate of conformity can be found in the annex and its reference number is: TÜV 02 ATEX 1970 Please observe the following signs: Danger of explosion In the manual, this symbol warns you of an explosion hazard. Please observe the instructions given next to this symbol. As to the danger of explosion, please observe the following in particular:  Connect the pulse outputs of the turbine meter only to intrinsically safe circuits.  Only the explosion-protected design of the TRZ 03-TE / TRZ 03-TEL may be used in areas subject to explosion hazards.  The battery must be changed in an area without explosion hazards. Damage to property In the manual, this symbol warns you of possible damage to property. The instructions given next to this symbol inform you about what you can do to avoid damage to the turbine meter.

It is essential to observe the warning information in these operating instructions and the generally applicable safety rules. No warranty claims can be asserted if there is unauthorized interference with the device!

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SAFETY INSTRUCTIONS

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Instructions for the installer Marking II 2 G Ex ib[ia] IIC T4 or T3 TÜV 02 ATEX 1970 / IECEx TUN 09.0002 Ta = -25°C ..... +40 / 60°C For data, see the EG type examination certificate (see annex)

9

0044 0085 Manufacturer RMG Messtechnik GmbH Otto-Hahn-Straße 5 D-35510 Butzbach (Germany)

Use Device type

Description

TERZ 94*** EA **** EZ **** TRZ 03-*** ENCO-* EC 21 EC 24 TEC 21 TEC 24 ETC **** EVC ****

Volumeter Volumeter Volumeter Turbine meter Encoder index Temperature corrector Volume corrector Volumeter + temperature corrector Volumeter + volume corrector Volumeter + temperature corrector Volumeter + volume corrector

This device is an apparatus for areas subject to explosion hazards.

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SAFETY INSTRUCTIONS

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Installation or removal When installing the device, care must be taken that the degree of protection of the casing is complied with. Exposure to direct sunlight has to be avoided. When removing the device, de-energize the signal circuits connected and remove the relevant cables properly. 10

Installation If one or more than one signal circuit is used, make sure when choosing the cables that the permissible limits as per the EC type examination certificate are not exceeded. Each explosion-protected signal circuit has to be installed in a separate cable which is to be taken through the relevant high-strength cable gland. It is absolutely necessary that the intrinsically safe cables are permanently installed. Make sure that the connecting cables are provided with wire-end sleeves.

Commissioning Before commissioning this equipment, make sure that all lines have been correctly installed and connected in the terminal compartment. The casing must be completely closed. For installation and commissioning, the IEC 60079-14 of 2004 / EN 60079-14 of 2006 standard has to be complied with. National norms and/or regulations also need to be taken into consideration.

Servicing and maintenance The battery may only be changed in a non-incendive area. This device may be repaired only by RMG Messtechnik.

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INSTALLATION AND COMMISSIONING

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Installation and Commissioning Installation Caution: Please read these installation instructions through and make sure that you have understood the procedure before you start to install the RMG turbine meter or put it into operation. Turbine meters are precise measuring instruments and must be handled carefully during transport, storage and operation. When you install the turbine meter, please observe the direction of flow indicated by an arrow on the meter case.

11

Installation errors may cause physical injuries or result in the destruction of the turbine meter.

It is essential to follow the instructions below:  

Remove the yellow protective film at the flanges completely. Rests of this plastic film affect the flow profile and cause measuring errors! The RMG TRZ 03-TE, TRZ 03-TEL and TERZ 94 turbine meters can be operated in any position up to the nominal diameter of DN 200. From the nominal diameter of DN 250, however, only a horizontal direction of flow is possible. If a particular position was indicated when ordering the turbine meter, you must install the turbine meter in this position. In addition, you must make sure that the filling opening of the lubricator faces upwards.

Any components affecting the gas flow must be avoided directly upstream of the turbine meter (see DVGW Guideline G 492 II1) and PTB Guideline G 132), exception: TRZ 03-TEL).

An inlet pipe of a minimum of 2 x DN is required upstream of the RMG TRZ 03-TE turbine meter. The inlet pipe must be designed as a straight pipe section of the same nominal diameter as the gas meter. If there is a heavy flow disturbance, it is necessary to use flow straighteners (see table on next page). A pipe or fitting (bend) of the same nominal diameter as the gas meter and an overall length of 2 x DN must be installed downstream of the gas meter. Temperature measuring instruments may only be installed at a distance of 1 x DN or in the case of nominal diameters of  DN 300 at a minimum distance of 300 mm. If there are flow disturbances (e.g. due to a gas pressure regulator) upstream of the inlet pipe, it is also necessary to use a perforated-plate straightener. You can use perforated-plate straighteners complying with ISO 5167-1 or of type RMG LP-35, the latter resulting in a pressure loss which is 2.5 times lower than that of the standardized flow straightener.

1) 2)

can be ordered at DVGW, Josef-Wirmer-Str. 1-3, D-53123 Bonn (www.dvgw.de) can be ordered at PTB, Bundesallee 100, D-38116 Braunschweig (www.ptb.de)

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INSTALLATION AND COMMISSIONING

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LP-35 perforated-plate straightener

 2 DN

2D N

d

DN

d DN

12

 1 DN

e

d = e = 0.13 • DN

Perforated-plate straightener

Upstream of the RMG TRZ 03-TEL turbine meter, no inlet pipe is required, even in the case of heavy flow disturbances such as those caused by a gas pressure regulator. It has been tested without an inlet pipe in compliance with Technical Guideline G13 (which corresponds to the OIML Guideline IR-32/89). A pipe or fitting (bend) of the same nominal diameter as the gas meter and an overall length of 2 x DN must be installed downstream of the gas meter. Temperature measuring instruments may only be installed at a distance of 1 x DN or in the case of nominal diameters of  DN 300 at a minimum distance of 300 mm.

The opening angle of reducers or expansion fittings installed upstream of a turbine meter of type TRZ 03-TE, TRZ 03-TEL or TERZ 94 must not exceed 30°.

In order to obtain precise measurement results, the turbine meter must be installed in the gas line in such a way that no seals protrude from the flanges into the pipeline.

A protective screen should be installed on the intake side of the gas meter to protect the turbine meter against any foreign particles possibly contained in the gas flow. The protective screen can be a perforated plate of sheet metal with a hole diameter of 3 mm which is available from RMG.

The pr tap which is located on the RMG turbine meter is the pressure-measuring point which was used for taking the relevant pressure at measurement conditions during meter proving. This pressure-measuring point is used for connecting pressure-measuring instruments such as flow computers or volume correctors. Other connection options (e.g. for temperature measurement) can be supplied on a pipe section on the output side of the gas meter.

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INSTALLATION AND COMMISSIONING

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Caution: Protect the turbine meter from damage caused by heavy flow variations, e.g. if the downstream pipeline system must be filled or blown off.

Caution: If it is necessary to do welding work on the gas line, such work can only be performed at a safe distance from the gas meter. Extreme temperatures prevailing in the gas line in the proximity of the gas meter can result in a permanent damage to the gas meter.

Caution: All electrical connections between the gas meter and the amplifiers or the flow computer must be carried out in compliance with the installation instructions. Make sure that these connections are intrinsically safe.

Caution: Any liquids remaining in the gas line after hydrostatic testing can damage the interior parts of the gas meter. If hydrostatic testing is necessary, the turbine meter must be replaced by a pipe section. Make sure that no liquid remains in the gas line upstream of the gas meter after hydrostatic testing.

13

 Operating data

Recommended threshold values for maximum service life and maximum accuracy: Maximum overload: Maximum flow changes or shock loads Maximum pressure change: Maximum flow pulsation: Particle size in the gas flow: Lubrication of bearings:

Vibration / mechanical shock:

< 20% above Qmax, for a short time (< 30 sec) < 0.01·Qmax/sec ˆ 1% of Qmax/sec e.g. starting up 0 to 100%: > 100 sec < 0.1 bar/sec < 5% < 5 mm See chapter on “Lubrication”. Lubrication intervals depend on the condition of the gas (condensate, rust or dust). < 1 mm/sec (vibration velocity)

These specified data must be determined and checked during commissioning, prior to filling and during the start-up and running-in phases of the gas meters. If more than one threshold value occurs at the same time, appropriate action must be taken in the station to improve the measuring conditions. The operator must record all measuring data (gas meter and operating data) during the whole period of operation in order to detect the causes of a possible destruction of the gas meter at an early stage and take corrective action in good time. ...............................................................................................................................................................................................................


INSTALLATION AND COMMISSIONING

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Corrective action or reduction of the critical operating conditions can be achieved by the following measures for example:  Start-up screens (mesh width < 0.15 mm)  Filters  Perforated plates (Ø 3 to 4 mm) protecting the gas meter  Valves with control drive mechanism (flow variation)  Non-return valves (pulsation and return flow) 14

 Technical Guideline G 13 The installation conditions for new stations complying with TRG G 13 and the simpler installation conditions for RMG turbine meters are compared in the table below. Type of flow disturbance

Installation cond. as per TR G13

None

Inlet pipe  5 DN Outlet pipe  2 DN Inlet pipe  10 DN

Installation cond. Comments for RMG gas meters Type TRZ 03-TE The outlet pipe can also be Inlet pipe  2 DN designed as a bend. Outlet pipe  2 DN Flow disturbances upstream of this inlet pipe need not be considered, if the requirement for an alternating and pulsating flow is fulfilled. Inlet pipe  2 DN Inlet pipe  2 DN

Inlet pipe  5 DN Inlet pipe  5 DN and additionally 2 perforated-plate straighteners or one tube-bundle straightener Gas pressure regulator Inlet pipe  5 DN Inlet pipe  2 DN with sound attenuator and additionally one perforated-plate straightener Gas pressure regulator Inlet pipe  5 DN Inlet pipe  2 DN without sound and additionally and additionally one attenuator two perforated-plate perforated-plate straighteners straightener Diffuser Inlet pipe  2 DN Inlet pipe  5 DN and additionally one perforated-plate straightener Diffuser with swirling Inlet pipe  5 DN Inlet pipe  2 DN flow and additionally two perforated-plate straighteners Bend Space bend

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INSTALLATION AND COMMISSIONING

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Perforated-plate straighteners There are the following options for flow straighteners: RMG L1 to L3 perforated-plate straighteners complying with ISO 5167-1 and DIN 1952

RMG LP-35 perforated-plate straightener 15

e

d

D

d

D

a

D

Features Hole diameter d Plate thickness e Plate clearance a Opening ratio m Pressure loss, dyn. p

ISO / DIN d  0.05 D ed 0.5 D  a  1 D 0.2  m  0.4

L1 to L3 0.04 D e=d 0.5 D 0.3 5 - 15 (c2  / 2)

e

RMG LP-35 0.13 D 0.13 D 0.6 2 - 15 (c2  / 2)

In conjunction with RMG turbine meters, these flow straighteners fulfil the requirements of Technical Guideline G 13 and are approved under EU approval No. D 81 / 7.211.10 for turbine meters.

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INSTALLATION AND COMMISSIONING

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Seals It must be guaranteed that flange seals of RMG turbine meters do not protrude from the flange into the gas line. All seals approved as per DVGW can be used depending on the requirements for stability and reliability, e.g. 16

 grooved seals  spiral seals  gaskets.

For recommended dimensions, see the table below.

1.5 up to 5 mm d1 d2

PN 10 DN 50 80 100 150 200 250 300 400 500 600

d1 76 100 125 178 223 278 334 412 506 600

2" 3" 4" 6" 8" 10" 12" 16" 20" 24"

d1 62 100 125 178 223 278 334 412 506 600

DN 50 80 100 150 200 250 300 400 500 600

PN 16

PN 25

PN 40

107 142 168 225 285 342 402 515 625 730

107 142 168 225 292 353 418 547 628 745

d2 107 142 162 218 273 328 378 490 595 695

107 142 162 218 273 330 385 497 618 735

ANSI 125 ANSI 150 ANSI 300 ANSI 400 ANSI 600 d2 105 105 111 111 111 136 136 149 149 149 175 175 181 178 194 222 222 251 248 267 279 279 308 305 321 340 340 362 359 400 410 410 422 419 457 515 515 540 537 565 605 605 655 648 685 715 715 775 768 790

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INSTALLATION AND COMMISSIONING

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Screws and nuts Hexagon head screws: complying with DIN EN 24014 Nuts: complying with DIN EN 24032 or DIN EN 28673 NOTE! Pursuant to AD Notice W7, you should use these screws and nuts only up to a maximum of M30 and a maximum of 40 bar! In metric flanges:

Screw bolts complying with DIN 2509 and DIN 2510-1

In flanges complying with ANSI/ASME B16.5-1988:

17

Use screw bolts with continuous threads complying with ANSI/ASME B.1.1:1989.

Material complying with W7 or material complying with ASTM A194 2H.

Selection of stud bolts and nuts Pressure

Temperature (째C)

Up to 100 bar

0 to 480 -50 to 450

Material Stud bolt A 193 B6 A 193 B7

Nut A 194 Gr. 6 A 194 Gr. 2H

Selection of screws and nuts Nominal Permissible fluid pressure temperature Up to 40 bar Up to 100 bar

-10 to 300

Material Strength class Screw Nut 5.6 5

-10 to 400

CK 35

CK 35

Standard Screw DIN 931 DIN 976 DIN 976 DIN 2510

Nut DIN 934 DIN 934 DIN 2510

Meter head Inside the meter head, the number of pulses is divided by the meter factor (number of pulses per m3) and the result is used to calculate the volume at measurement conditions. In the main totalizer, the sum of the volume at measurement conditions with flowed through the meter per time unit on the flow rate display. At the HF output, the unchanged signal frequency of the sensor element is outputted, whereas, for the LF output, this HF frequency can be reduced by one programmable scaling factor. ...............................................................................................................................................................................................................


INSTALLATION AND COMMISSIONING

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Block diagram 2-channel (TRZ 03-TE and TRZ 03-TEL)

2-channel 18

f

Channel 1

Current output

i

Channel 2

With 2 channels: pulse monitoring 10 / 10000 180 °

1 K

1 n

12345678 m3

1 n

LF output HF output Alarm contact Option: EZD or RS485 interface

You can install the meter head also vertically. To do this, you must proceed as follows:       

Unscrew the cover of the meter head. Disconnect the two wires from terminal X5 (remember the polarity!). Unscrew the fastening screws of the meter board.Remove the board carefully from the case. If necessary, disconnect the two wires from the button. Loosen the set screw (2). Now you can remove the case of the meter head and an aluminium assembly part will appear. On the side of the case, there is a hole which is covered with a screw. Mount the retainer part to this hole and close the hole in the rear panel by means of the screw. Thread the signal wires through the retainer part, place the meter head onto the turbine case, turn it into the desired position and retighten the set screw (2). Insert the board again into the case, connect the signal wires again to terminal X5 (make sure that the polarity is correct!) and screw on the cover again.

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INSTALLATION AND COMMISSIONING

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Power Supply Depending on the type of the device, there are different options of power supply. 1. The basic TRZ 03-TE model is supplied by an internal lithium battery which enables to operate the device continuously for a period of six years. This, however, is conditional on the device being read once a week or â&#x20AC;&#x153;woken upâ&#x20AC;? by pressing the external button. 2. If an interface module is used for transmitting data, such as the ENCO with external supply, the service life of the battery is more than 10 years.

19

3. The TRZ 03-TE / TEL (current transmitter) is completely supplied through a current loop. If pulse processing is to be maintained even in the case of a power failure of the current loop, a standby battery (available as an option) should be installed which will bridge the power supply during a period of up to 6 months.

Electrical connections The LF and HF volume pulses and the current output in non-Ex devices are led out of the meter head by a 7-pin connector (Binder). All other connections have to be made at the terminals on the board. Standard connection battery version (Ex and non-Ex devices) and mains powered version (Ex devices): 4

3

5

2

6

1

1-/4+ 2-/5+ 3-/6+

LF signal not connected HF signal

PE PE (Abschirmung) (Screening)

Standard connection mains powered version (non-Ex devices): 4

3

5

2

6

1

1-/4+ 2-/5+ 3-/6+

LF signal Current output 4 to 20 mA HF signal

(Abschirmung) PE PE (Screening)

In areas subject to explosion hazards, the TRZ 03-TE / TEL must only be connected to certified intrinsically safe circuits. Make sure that the limiting values from the conformity certificate (see appendix) for the devices, which have to be connected, are not exceeded.

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INSTALLATION AND COMMISSIONING

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If one or more electric circuits are used, it is to ensure that with the cable selection the permissible limiting values according to the EEC design inspection certificate are not exceeded. Each ex signal circuit has to be wired in its own cable, which is to be led through the appropriate cable gland. A fixed installation of the intrinsically safe cables is mandatory. The connecting cables have to be provided with core-end sleeves. 20

To reach the electrical connections on the board, you must first remove the cover of the meter head.

Plug X2_0 for current module TERZ94trm and supply

Plug X3 Service module

Pin connector button on the case

Reset (soldering pads)

Terminal block X4 Pulse outputs

Terminal X5 Pulse inputs

Jumper X_TERZ90 Programming keys

Jumpers X_S1 and X_S2 for configuration of pulse inputs

To convert from the meter head directly mounted on the meter case to the remote totalizing unit and vice versa it is necessary to change the positions of some jumpers (see inputs and outputs in the annex). Meter head mounted on meter case Remote totalizing unit

X_S1 (and X_S2*) 3-5 and 4-6 3-5 and 4-6

X_TERZ90 all open 1-2 (and 3-4*)

* for 2-channel measurement only ...............................................................................................................................................................................................................


INSTALLATION AND COMMISSIONING

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Battery powered version: Controlling the start-stop totalizer or resetting the resettable totalizer (depending on the programming of the electronic totalizing unit) is performed through input X5 terminals 1 and 2. As soon as input X5 terminals 1 / 2 has been short-circuited through an external contact, interruption or resetting is performed.  For this purpose, set jumpers at the positions identified with XS 2 to the “reed contact” function. 21 Mains powered version: In the case of the TERZ 94-S, terminal X22 (on current module TERZ94trm) is used as current-loop connection to supply the device and as output current (4-20 mA). The output signals can be picked up at the following terminals: HF signals: Output X4, terminals X4,4 (+) / X4,3(-) LF signals: Output X4, terminals X4,2 (+) / X4,1(-) Now connect the cables and then put the cover again on the lower part of the housing. To connect the cables to the spring terminals, you need a screwdriver with a blade width of a maximum of 2.5 mm. Introduce the blade into the intended slot and press down the screwdriver to open the spring terminal.

Earthing To prevent measuring errors caused by electromagnetic interference, you must not fail to earth the case of the meter head via the earthing screw on the left side of the case.

Minimum cable cross section: up to a length of 10 m: from a length of 10 m:

6 mm2 10 mm2 Earthing screw

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INSTALLATION AND COMMISSIONING

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Thereby make sure that you have an electrical link between TERZ 94 and the piping, as it is shown in the drawing below.

Outputs

22

24 VDC

- 0085

Current output 4-20mA

yes

no

IP65

equipotential bonding 2 line, min. 6 mm

potential measuring station

P

potential measuring station

Cables Use 2-core or multicore shielded cables which are twisted together in pairs (type LIYCY) for the signal lines (LF output, HF output, current-loop connection, control input). The shielding must always be connected to earth on both sides. In the case of the battery powered version, you must proceed as described in the chapter â&#x20AC;&#x153;Cable glandsâ&#x20AC;?. We recommend that cable cross sections between 0.25 mm2 and 0.5 mm2 are used. Due to the cable gland, the outside diameter must be between 4.5 mm and 6.5 mm. When the device is used in areas subject to explosion hazards, the maximum cable length is limited by the limit values for intrinsically safe circuits and depends on the inductance and capacitance of the cable! In particular: The maximum cable length between the TRZ 03-TE and the transmitter supply unit of type KFD2-STC3-Ex1, in connection with the cable type LiYCY 2 x 0.75 mm2, is 250 m for the current output. You can also use other cable types, if the following cable values are not exceeded: Capacitance < 200 nF/km inductance < 1 mH/km

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INSTALLATION AND COMMISSIONING

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Cable glands Clamp the shielding on both sides, as shown in the picture below, into the cable glands located on the outside of the case:     

Unscrew the cap nut. Pull out the plastic clamping piece. Push the cable end through the cap nut and the clamping piece and bend the shielding backwards. Put the clamping piece back into the connecting piece. Screw on the cap nut again.

23

Cap nut Clamping piece

O-ring

Connecting piece

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INSTALLATION AND COMMISSIONING

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Installing the remote totalizing unit

24

24 VDC

- 0085

Current output 4-20mA

yes

no

IP65

X1

X16_0

Taster

X3

Servicemodul

Sensor

TERZ94p

-

CX6

TERZ94trm X2_0

-

C1

RESET

V12

X7

C21

X4

Q1

Impulseingang

V14 X5

TP-GND

+ Index Input

Index Input +

+

Sensor

Sensor EZSENS01

XLP1

X15 3 1

L1

TEMP_LM7X

X_S2 1 3 5

2

CX2

X_S1 1 3 5

X10-0 6

S1

S2

-

Zählwerk

Zählwerk

5 2

S4

-

4 1

CX3 CX1

4 2

X152 S3

PT1000

Reed 1+3 / 2+4 Sensorverstärker 3+4 Wiegand 3+5 / 4+6

Datenschnittstelle

X9

X151

Boot

EZD/RS-485

X6_0

Datenschnittstelle

X_TERZ90

-

+ + -

C22

V13

Zählwerk

Zählwerk

Impulsausgänge

-

+ Index Input

Index Input +

+ Sensor

P

If your TRZ 03-TE is designed for remote totalizing, you can install the totalizing unit at a distance of up to 50 m from the meter case. Usually, the cable has already been connected to the totalizing unit when the TERZ 94 is delivered. Should this not be the case, you will have to connect the connecting cable to Input-terminal X5, clamp S1+ and clamp S1- of the board. For 2-channel meters connect the second sensor to the clamps S2+ and S2-. Use only shielded cables of the type: LIYCY - 2 x 0.75 blue (1-channel version) LIYCY - 2 x 2 x 0.75 blue (standard) Maximum cable length: 50 m Furthermore, you must check the plug-in jumpers XS1, XS2 and XTERZ90 on the display board. Settings at XS1 and XS2: jumpers 3-4

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INSTALLATION AND COMMISSIONING

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Temperature measurement In order to measure the gas temperature, a resistance thermometer can be used in a thermowell in a fitting downstream of the gas meter. It is recommended that a second thermowell, e.g. for a monitoring thermometer, be used. If such thermowells are not provided for in the meter case, temperature measurement must be performed at a distance of up to 3 x DN or a maximum of 600 mm downstream of the turbine meter. All turbine meters of types TRZ 03-TE and TRZ 03-TEL from the nominal diameter of DN 80 (3") upwards can be fitted with a thermowell for a PT100 resistance thermometer. Due to their short size, turbine meters of type TERZ 94 cannot be fitted with a thermowell.

25

Operating temperatures prevailing at outdoor metering stations in winter or at natural gas metering stations downstream of regulating stations are usually in the range of -5ď&#x201A;°C to +10ď&#x201A;°C. By comparison, higher operating temperatures prevail at metering stations located downstream of compressor stations. For this reason, the measuring elements of the temperature sensors located outside the gas line must be appropriately insulated against the weather. In order to achieve optimum thermal conduction, oil as a heat transfer liquid should be filled in the thermowells in any case.

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COMMISSIONING

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Commissioning Filling with oil

26

When the turbine meters are delivered, the lubricators do not contain any oil. The oil pumps must not be filled with oil until they are at the installation site prior to commissioning! A small bottle of oil is supplied with each gas meter. For detailed lubrication instructions, see chapter â&#x20AC;&#x153;Lubricationâ&#x20AC;? from page 40.

Connecting the gas flow Do not fill any downstream pipelines or station sections through the turbine meter. This may speed up the turbine wheel and lead to excessively high loads with resultant damage. Short-time overload operation of 20% above the maximum flow rate Qmax is permissible. Such load conditions should be avoided, however, since in most cases they cannot be controlled and exceed the officially approved limits for custody transfer metering. Moreover, such overloads reduce the service life of the gas meter. The gas flow must be free of foreign particles, dust or liquids. Otherwise it is recommended that filters or separators be installed. Before starting up the device, make sure that all lines have been correctly installed and connected in the terminal compartment. The case must be completely closed.

Initializing the totalizing unit When you start up the device for the first time, set the totalizing unit in the desired condition. Check the programming of the pulse width, the LF pulse scaler, etc. Mains powered version: Check the programming of the current output mode. Note: All parameters can only be changed after the cover of the meter has been removed.

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OPERATION

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Operation Display In normal operating mode, the main totalizer is displayed. When you press the control button on the right side of the case, all values will be shown. After the preset display wake-up time has elapsed, the main totalizer will appear again.

27

If the display of the TRZ 03-TE / TEL does not show anything, the device is in energy-saving mode. In this mode, the display is switched off. However, incoming pulses are processed and the outputs are set. As soon as you press the control button, the display values will appear again. Display switched off:

0 0 0 0 5 8 3 1 m3

1 0. 0 0 0 m3/h

Main totalizer Vm

Flow rate

0 0 0 0 0 0 0 0 m3

Start / stop totalizer

0 0 0 0 0 0 0 0 m3

Resettable totalizer

5 0. 0 0 P/m3 Meter factor

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OPERATION

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1

--

Pulse scaler

28 000 0 0 0 0 1 MOD

Configuration

0000008000 S.No.

Serial number

Extra values for version with external supply

80.38 Hz

0 0 0 0 5 8 3 1 m3

Frequency (sensor)

Main totalizer

An overview of parameters and the complete matrix are shown in the annex. NOTE: The button located externally on the case reacts when it is released and not when it is pressed. The duration of pressing the button is evaluated and results in different reactions of the device. Pressing the button for a short time causes the display to show the next display value, while pressing the button for a longer time (more than 2 seconds) will activate all segments of the display (segment test) and then the display will switch over to showing the Vm totalizer. The following text describes procedures where the button is normally pressed for a short time.

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OPERATION

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Programming For programming the TRZ 03-TE / TRZ 03-TEL, there are four buttons on the rear side of the board. Alternatively, you can program the device with the programming module (available as an accessory). The programming module is to be connected to the pin connector indicated in the picture below. 29

ď&#x201A;Ž

ď ź

+

P

Programming

Programming with the programming module is to be performed in the same way as with the buttons.

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OPERATION

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The external and internal buttons correspond to each other in the following way: Int. button

Ext. button

Meaning

P

P

Display mode: Switch over to programming mode (Press the button longer than 2 seconds) Programming mode: Set the decimal point.

+

Display mode: Switch over to the next higher level.

30

Programming mode: - Increase the decimal by 1. - Scroll in the list. (Value identified with “L“)

-

Display mode: Switch over to the next lower level. Programming mode: - Decrease the decimal by 1. - Scroll in the list. (Value identified with “L“)

Display mode: Short-time view of the coordinate (e.g. A01) Programming mode: Go to the right by one decimal place (if the last decimal has been reached: Quit programming mode).

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OPERATION

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Principle of programming For programming, you must always proceed as follows: 

First change over to the display value to be modified.  To do this, press either the control button (only forwards)  or the internal buttons “+” and “-” or the external buttons “” and “” (forwards and backwards).

Change to programming mode by pressing “P” for at least 2 seconds. On the left side of the display, a flashing character or cursor will appear. If necessary press the “” key so many times until a flashing character appears.

31

Flashing character

0 1 2 3.2 3 P/m3 

You can now modify the flashing decimal by pressing either “+”or “” (+1) or “-” or “” (-1). Example: If you press the ““ button three times, the first decimal will be increased from 0 to 3. If an “L” appears on the far left side of the display, this value is a list. With a list, you can only scroll in the specified values.

After you have completed your programming of the first decimal, press “” once and the next character will start to flash. Now proceed with your programming until you have reached the last decimal place.

Then you must press “” once again to have the set value accepted and quit programming mode.

Press the “P“ button to set the decimal point behind the flashing digit. With totalizers, modes and integers, no decimal point is permitted.

Press the control button if you have made an error or if you want to discontinue inputting data.

Display values Measured values, such as flow rate, frequency, etc. are display values and cannot be directly modified. However, there are many parameters which influence the formation of these measured values. These parameters are described in the following section. Examples of display values: flow rate, version number, year of construction, serial number, value of the current output in mA, etc.

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OPERATION

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Parameters and Modes of the TRZ 03-TE / TEL In the following text, the individual parameters are described in detail.

Meter factor (pulse value) 32

With the meter factor (pulse value), the relevant flow rate at measurement conditions is calculated from the signal frequency of the sensor element in the electronic totalizing unit: QM 

f: K: QM:

f  3600 K

m3     h 

Signal frequency (Hz) Meter factor (pulses/m3) Flow rate at measurement conditions (m3/h)

The meter factor has been calibrated in the factory in such a way that working cubic metres are directly displayed. Its value can be read from a label located on the left side of the case. Any modification of this adjustment is within the sphere of responsibility of the operating company. NOTE! The new value is immediately used for all calculations performed after each modification of the meter factor. The uninfluenced signal frequency of the sensor element is available at the HF output. The frequency range can be determined from the meter factor K and the minimum and maximum flow rates at measurement conditions of the meter in accordance with the following formulae: fmin 

Q M min K 3600

fmax 

Q M max K 3600

QMmin: Minimum flow rate at measurement conditions QMmax: Maximum flow rate at measurement conditions K: Meter factor (pulse value) Example: QMmin = 16 m3/h

fmin 

QMmax = 250 m3/h

16  2362 Hz  10.5 Hz 3600

K = 2362 pulses/m3

fmax 

250  2326 Hz  164 Hz 3600

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OPERATION

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LF pulse scaler The frequency of the LF pulses is set by a pulse scaler (A07). There are the following setting options: 0.01; 0.1; 1; 10; 100. Other values can not be programmed, it is only possible to scroll in the list of these values (‘t’ key resp. ‘_’ key). This pulse scaler has only effect on the frequency of the LF pulses not on the display. The number of displayed digits after decimal point or a multiplier are programmed as an operating mode (A08)

33

Recommended values (= values set in the factory) DN [mm]

Pulse scaler [pulses/m3]

LF decade scaler

Pulse rate [pulses/m3]

Maximum output frequency [Hz] 1)

25

10

1

10

0.1

40

10

10

1

0.1

50

10

10

1

0.1

80

10

10

1

0.1

100

10

10

1

0.1

150

1

1

1

0.3

200

1

1

1

0.6

250

1

1

1

0.7

300

1

1

1

1.1

400

1

10

0.1

0.2

500

1

10

0.1

0.3

600

1

10

0.1

0.4

1) Rounded values

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OPERATION

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Configuration The basic configuration of the TRZ 03-TE / TEL is implemented via an 8-character display value (A08). This “TERZ mode” defines the operating mode of the device. Some parameters require a specific hardware or hardware configuration.

34

NOTE! Hardware and software configurations must coincide. Any modifications of these parameters can cause malfunctions. Let’s start on the left side of the display: (operating alignment italic)  Internal parameters For testing and diagnostics (no influence on the metering result). 0: Menu for standard operation. 1: Menu for service 9: All parameters visible.

 Main totalizer mode This parameter defines the unit for the gas volume 0: m3 (cubic meter). 1: cf (cubic foot).  LF pulse width The LF pulse width can be set at 125 ms or 250 ms. 0: 125 ms

1: 250 ms

 Cut-off time of the display A few minutes after you have operated the device for the last time, the display will switch off to expand the service life of the battery of the TRZ 03-TE / TEL. There are the following times for selection: 0: 1 minute 1: 5 minutes 2: 10 minutes 3: 15 minutes 4: 1 hour (for test purpose only!)  Interface protocol 0: OFF 1: EZD protocol 0x00 / 2: EZD protocol 0x7f / 3: Test protocol

Standard Vo protocol (NAMUR) Vo protocol for external devices (NAMUR)

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OPERATION

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 Pulse scale In this operating mode the display is set. To get the real totalizer readings the displayed value must be multiplied with the multiplier. 0: 2 digits after decimal points, multiplier: 1 1: 1 digit after decimal points, multiplier: 1 2: no digits after decimal points, multiplier: 1 3: no digits after decimal points, multiplier: 10 4: no digits after decimal points, multiplier: 100

35

 Current output 0: OFF 1: Current output is active 2: Current output is active and faults are signalled (3,5 mA) 3: Current output is active and faults are signalled (21,8 mA) The current values in brackets are outputted in case of a fault.  TERZ operating modes There are the following operating modes at the moment: 0: ENCO-F 1: ENCO-M 2: TERZ 94 1 channel 3: TERZ 94 1 channel with start / stop totalizer 4: TERZ 94 1 channel with reset totalizer 5: TRZ03-TE/TEL 2 channels with pulse monitoring (SW), Vm Stop 6: TRZ03-TE/TEL 2 channels with pulse monitoring (SW), Vm Run 7: TRZ03-TE/TEL 2 channels with pulse monitoring (HW), Vm Stop 8: TRZ03-TE/TEL 2 channels with pulse monitoring (HW), Vm Run 9: TRZ03-TE/TEL 2 channels without pulse monitoring SW means “pulse monitoring by software”, HW by hardware; Vm Stop means totalizer is stopped in case of a fault whereas the counting continnes in the mode Vm Run.

Example: 00110115

MOD 5: TRZ 03-TE/TEL – 2 channel, pulse monitoring (SW) active, Vm Stop 1: Current output is active, faults are not signalled. 1: Display of 1 digit after decimal point 0: Interface protocol off 1: Display cut-off time: 5 minutes 1: LF pulse width: 250 ms 0: Display in m3 0: Operating mode: No diagnostics mode is activated

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OPERATION

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Pulse comparator

36

The 2-channel version of the TERZ-94 (TRZ03 TE / TEL) provides for pulse monitoring. Pulse monitoring requires two input pulses which are out of phase. If a pulse occurs at the same time on channel 1 and channel 2, a fault counter is increased. If there is a missing pulse on one of the two channels, a fault counter is increased, too. If this fault counter reaches the value X(A10) before Y(A11) undisturbed pulses have entered one of the two channels, a fault will be outputted. This fault will not be erased until Y undisturbed pulses have been counted.

Flow rate at 4 mA With this parameter, you set the flow rate (in m3/h) which corresponds to an outputted current of 4 mA. Generally, the minimum flow rate Qmin of the meter is set here. (This setting is made in the factory.)

Flow rate at 20 mA With this parameter, you set the flow rate (in m3/h) which corresponds to an outputted current of 20 mA. Generally, the maximum flow rate Qmax of the meter is set here. (This setting is made in the factory.) Then the current which will be outputted for flow rates within the programmed limits will be between 4 and 20 mA and results from linear conversion.

Current default value (calibration current) With this parameter, you set the value of the calibration current. A constant calibration current is outputted if the current output mode parameter is set to default. The value of the calibration current must be within the following limits: Minimum value: 4 mA Maximum value: 20 mA

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OPERATION

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Current output mode Here you define the measured or default value which is to be outputted. 0: Default value (see above) 1: Flow rate Qm All other values are not permitted! 37

Current damping Here you define how the current output is to be damped. Permissible values for D are 0 to 0.9 ! Output current = (1-D) x value + D x old value

Correction factors for current offset and current rise The current output is adjusted in the factory through two correction factors (offset and rise). In the event that a recalibration should really be necessary, there is a PC-based program available which will define the new offset and rise values for you.

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OPERATION

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Influences on the error of measurement due to operation Intermittent operation

38

Rapid changes of the gas flow should be avoided, since the turbine wheel can follow these changes only with a certain delay due to its inertia. In this way, errors of measurement occur, in particular, if the gas flow is shut off. Since in this case the turbine wheel slows down after the flow has stopped, a gas volume is measured which is always higher than that which has actually flowed through the gas meter. In the supplement to PTB Guideline G 13, an instrument is stipulated which records the flow during the slow-down time of the turbine wheel for intermittent operation (i.e. if the gas flow is permanently switched on and shut off). If control signals of a shut-off valve are available, this volume can be recorded for custody transfer metering purposes for example by the TAZ 9, an RMG device recording the gas volume during the slow-down time of turbine meters after flow stop (for custody transfer metering only in conjunction with the TRZ 03-TE or TRZ 03-TEL). As soon as the shut-off valve is closed, the TAZ 9 starts to record the gas volume during the slow-down time of the turbine meter.

Influence of pulsations The gas flow must be free of shocks or pulsations. A gas metering station can be affected by flow pulsations, however, if the following equipment has been installed upstream or downstream in the system:    

reciprocating piston compressors, rotary displacement meters, gas pressure regulators lacking steadiness of operation, pipes where no gas flows (siphons).

Volume flow pulsation is the decisive quantity for evaluating the performance of gas meters under the influence of pulsations. Volume flow pulsation is physically always associated with pressure variations. The following relation is established in a first approximation: 

Q rel

DN 2  p rel  K Q

where:

^ : Q rel ¯: Q ^p rel: DN: K:

is the relative volume flow pulsation (peak-to-peak) is the mean volumetric flow is the relative pressure pulsation (peak-to-peak) is the nominal diameter of the gas meter is a constant depending on standard density, velocity of sound, compressibility, pressure at base conditions, temperature, and station-specific parameters.

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OPERATION

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With this relation, it is possible to estimate volume flow pulsation on the basis of pressure pulsation, which can be measured more easily. Direct measurement of volume flow pulsation is preferable, however, since the results are more reliable. The crucial factor is the pulsation at the location of measurement.

Consequences

39

In the case of pulsating flow, the turbine meter shows a measured value which is too high. Due to the pulse applied by the flow on the impeller which increases quadratically with the flow velocity, the resultant rotational speed is higher than the mean value of the flow velocity. The influence with high gas density is less, but increases with a high mass moment of inertia (heavy impeller) or fast-running wheels. Furthermore, high pulsation amplitudes may result in premature wear of shaft bearings due to increased load.

Limiting values Frequency ranges  It is generally unlikely that measured values will be distorted in the frequency range above 100 Hz.  In practice, it is hardly possible to initiate any significant flow variations at such frequencies.  Disturbances are to be expected most frequently in the frequency range between 0.1 Hz and 100 Hz, since with typical station dimensions, the gas column can be expected to produce resonances. Flow variations with a high relative amplitude may occur.  In the frequency range below 0.1 Hz, there is a quasi-steady flow which will not cause any distortion with the gas meters.

Pulsation amplitudes Studies have shown that no disturbances are to be expected in the case of relative flow pulsations below 5% (peak-to-peak) and relative pressure pulsations of less than 0.1% to 0.5% (peak-topeak). These data should be regarded as approximate values depending on the flow rate and pulsation frequency involved.

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OPERATION

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Lubrication Lubricator For lubrication, either an oil gun or a permanently fitted oil pressure pump is used. The various designs are given in the tables below.

40

DO KO GO DS

DN 50 80 100 150 200 250 300 400 500 600

Type of oil pump Oil gun (oil nipple) Pushbutton pump Lever pump Permanent lubrication

Container volume 150 cm3 8 cm3 150 cm3 --

TERZ 94 Pressure classes PN 10, 16 PN 25, 40, 64, 100 ANSI 150 ANSI 300, 600 DS DS DS DS KO KO GO GO GO GO GO

1) meters manufactured before November 2007 with DO

Delivered quantity 0,6 cm3/stroke 0,114 cm3/stroke 1,5 cm3/stroke --

TRZ 03-TE and TRZ 03-TEL Pressure classes PN 10, 16 PN 25, 40, 64, 100 ANSI 150 ANSI 300, 600 KO DS (KO) 1) 1) KO DS (KO) DS (KO) KO DS (KO) KO KO GO GO GO GO GO Types in brackets are options

Specification for lubricating oils For lubrication purposes, we recommend that you use only Shell Morlina Oil 10 or another lubricating oil with 2 to 4°E at 25°C complying with MIL-L-6085-A in order to avoid damage to the shaft bearings. You can order your supply of lubricating oil from us in 1-liter containers under Ref. No. 82.11.142.00. Shelf life of oil: the shelf life depends on the operating conditions (e.g. UV light, humidity etc.). In principle the oil suffers no quality loss during the first 3-4 years.

Initial lubrication When the turbine meters are delivered, the lubricators do not contain any oil. The oil pumps must not be filled with oil until they are at the installation site prior to commissioning. A small bottle of oil is supplied with each gas meter. For the initial lubrication more pump strokes are necessary than for the relubrications because first the oil pipes have to be filled with oil. Pump DO (oil gun) KO (pushbutton pump) GO (lever pump)

DN 50 – DN 200 20 strokes*) 40 strokes -

DN 250 – DN 600 45 strokes 10 strokes

*) after venting the oil gun!

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OPERATION

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Relubrication The relubrication intervals are stated on a indicating plate on the meter case. See also “Lubrication procedure”. Example: Relubrication! Every 3 months 2 strokes Lubricating oil: 2-4°E at 25°C conforming to MIL-L-6085-A see operating instructions

41

In the case of unfavourable operating conditions, such as condensate forming because of water or hydrocarbon, or dust-laden gas, or service temperatures above 50°C, we recommend that lubrication be performed at shorter intervals, even daily under extreme conditions (permanent formation of condensate). If the gas meter is operated under the above-mentioned conditions, it is likely that its service life will be reduced. If you have questions to the relubrication in such cases please contact RMG.

Lubrication procedure To fill the pumps and lubricate the turbine meters, proceed as follows: Oil gun Cover

Piston

To fill with oil: 1. Unscrew cover. 2. Pull piston by means of the chain. 3. Fill with oil. 4. Reinsert piston by pushing it as far as possible. 5. Screw on cover again tightly. 6. Vent the oil gun! To lubricate: 1. Plug oil gun onto oil nipple. 2. Depress oil gun towards oil nipple once for each stroke. Every 3 months 2 strokes

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OPERATION

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Pushbutton pump To fill with oil: 1. Unscrew cover. 2. Fill with oil. 3. Screw on cover again. 42

To lubricate: 1. Unscrew knurled cover (or hexagon cover in the case of older designs). 2. Depress pushbutton, which is now visible, once for each stroke. 3. Screw on knurled (or hexagon) cover again. Every 3 months 6 strokes

Lever pump To fill with oil: 1. Pull off cover upwards (in the case of lever pumps with transparent container, unscrew cover). 2. Fill with oil. 3. Screw (or plug) on cover again tightly. To lubricate: 1. Move lever once for each stroke as far as it will go. Up to DN 400: every 3 months 2 strokes From DN 500: every 3 months 3 strokes

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OPERATION

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Changing the battery Use only lithium batteries of the type SL 770/P Size C, 3.6 V produced by Sonnenschein or type LS 33600 produced by Saft. These batteries have a service life of a minimum of 6 years and can be ordered ready for installation from RMG under the following order number: For Ex and Non-Ex devices: 207626 

43

If you use other batteries than the replacement batteries from RMG, you run the risk of the TRZ 03-TE / TEL not being approved for areas subject to explosion hazards any more. In areas subject to explosion hazards, you must never insert or remove the battery. Remove the display board from the case and change the battery in an area without explosion hazards.

To change the battery, you must proceed as follows:  

     

Remove the cover of the meter head – on the rear side, there is the battery fixed with cable ties. If the meter is located in an area subject to explosion hazards, disconnect the sensor wires from terminal X5 (see chapter “Electrical connections” – Remember the terminals and colours!) and take the display board to an area without explosion hazards. Remove the connecting wires of the battery from the contacts on the bottom of the terminal board. Screw off the four screws with witch the battery board is fixed. Remove the cable ties with which the battery is fixed and take out the battery. Insert the new battery and fix it with cable ties. Plug the connecting wires of the battery on the contacts of the terminal board. Make sure that the polarity is correct. Reinsert the battery-board into the case and screw it on. In case you have previously disconnected the wires of the sensor and the control button, you must connect them again (make sure that the polarity of the sensor wires is correct!). Close the case.

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OPERATION

...............................................................................................................................................................................................................

Maintenance instructions RMG turbine meters are maintenance-free except that they require lubrication and change of battery at regular intervals. Since all gas meters fitted with oil pumps are shipped with an empty oil storage tank, it is absolutely essential to fill the storage tank of the oil pump with oil and perform lubrication before the gas meter is put into service. 44

The operator should nevertheless check the turbine meter at regular intervals. In this connection, please refer also to DVGW code of practice G 495. (Gas pressure regulators for monitoring and servicing large-scale gas metering systems) The gas meter should be checked for accuracy approximately every two years depending on whether it is possible or necessary to perform such checks. This can be done as follows:  In the station itself by connecting two gas meters in series.  In an officially acknowledged testing laboratory for gas measuring instruments.  In the factory.

Labelling All important data which are necessary for operating the gas meter are stated on the plates which are affixed to the meter case, totalizer or pulse transmitters.

Main data plate of the TRZ 03-TE turbine meter 0085

24 VDC

Further data press button max min

EEx ib ia IIC T3/T4 II2G TÜV 02 ATEX1970 -20°C !

Germany

Ta +60°C/40°C

EG-type examination certificate

IP65

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OPERATION

...............................................................................................................................................................................................................

Ser.-No.

0085

Year

Further data see data plates on the remote totalizing unit. For Ex devices see EC Type-Approval Certificate No. TÜV 02 ATEX 1970

Data plate of the TRZ 03-TE measuring device

45 Pulse Outputs TRZ03-TE/TEL imp NF

3

I1 1

4 1m =

I2 2

5

I3 3

6 1m =

Connectors assignment

Alarm imp HF

3

- +

Re - Lubrication At 3 month intervals, 2 strokes. Lubricant: 2-4°E at 25°C corresponding to MIL-L-6085-A. Supplementary information see operating instructions.

Indicating plate for relubrication of the main bearings

Re- Lubrication At 3 month intervals, 6 strokes. Lubricant: 2 - 4°E at 25°C conforming to MIL-L-6085-A. The containervolume of 0,15 litre is sufficient for 3 months. Supplementary information see operating instructions.

Indicating plate for relubrication of the main bearings

Arrow indicating the direction of flow

p

r

Indication of the reference pressure tap

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SPECIFICATIONS

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Specifications Measuring range Under atmospheric pressure: 46

1:16

If the pressure increases, the measuring range of the meter extends. Measuring ranges of up to 1:50 can be reached.

Measuring error For Qmin to 0.2 · Qmax: For 0.2 · Qmax to Qmax :

 ±2%  ±1%

(DN 25:  ±2% for Qmin to Qmax) Reproducibility:  ±0.5%

Temperature ranges Fluid temperature range:

-10°C to +50°C

Ambient temperature range: TRZ 03-TE/TEL II2 G EEx ib IIC T4 II2 G EEx ib IIC T3

-20°C to +40°C -20°C to +60°C

with external supply

-20°C to +60°C

II2 G EEx ib IIC T4

In the case of special designs, even higher or lower fluid temperatures are possible in non-Ex versions.

Inputs and outputs Sensor input S1

(Measuring input)

(For Ex connected loads, see approval certificate) Terminals: Sensor type: Wiegand sensor, direct

X5,1 (+) X5,2 (-) Line length < 50 cm Jumpers X_S1 / 3-5 and 4-6

Wiegand sensor, remote totalizer

Line length < 30 m Jumpers: X_S1 / 3-5 and 4-6 Jumpers: X_TERZ90 / 1-2

Reed contact

Jumpers X_S1 / 1-3 and 2-4

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SPECIFICATIONS

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Sensor input S2

(Comparative input or start/stop/reset)

(For Ex connected loads, see approval certificate) Terminals:

X5,3 (+) X5,4 (-)

Sensor type: Wiegand sensor, direct

Line length < 50 cm Jumpers X_S2 / 3-5 and 4-6

Wiegand sensor, remote totalizer

Line length < 50 m Jumpers: X_S2 / 3-5 and 4-6 Jumpers: X_TERZ90 / 3-4

Reed contact

Jumpers X_S2 / 1-3 and 2-4

47

HF output In the case of the explosion-protected (Ex) design, the device can only be connected to a certified intrinsically safe circuit. Terminals: Output: Tpulse: Fmax: Umin: Umax: Imax: External inductance External capacitance

X4,4 (+) X4,3 (-) Open-drain transistor 1 ms Âą 10% 300 Hz Ex 4.0 V 28 V 60 mA* (total current) 1H 25 ÎźF

Non-Ex 4.0 V 30 V 400 mA

* maximum total current of the 3 pulse outputs (LF + HF + Alarm)

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SPECIFICATIONS

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LF output In the case of the explosion-protected (Ex) design, the device can only be connected to a certified intrinsically safe circuit. (For Ex connected loads, see approval certificate.) Terminals: 48

Output: Tpulse:

Umin: Umax: Imax: External inductance External capacitance

X4,2 (+) X4,1 (-) Open-drain transistor 125 ms ± 10% (Fmax: 4 Hz) 250 ms ± 10% (Fmax: 2 Hz) Ex 4.0 V 28 V 60 mA* (total current) 1H 25 μF

Non-Ex 4.0 V 30 V 400 mA

* maximum total current of the 3 pulse outputs (LF + HF + Alarm)

Alarm output In the case of the explosion-protected (Ex) design, the device can only be connected to a certified intrinsically safe circuit. (For Ex connected loads, see approval certificate.) Terminals: Output: Umin: Umax: Imax: External inductance External capacitance

X4,6 (+) X4,5 (-) Open-drain transistor Ex 4.0 V 28 V 60 mA* (total current) 1H 25 μF

Non-Ex 4.0 V 30 V 400 mA

* maximum total current of the 3 pulse outputs (LF + HF + Alarm)

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SPECIFICATIONS

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Vo or RS-485 data interface In the case of the explosion-protected (Ex) design, the device can only be connected to a certified intrinsically safe circuit. (For Ex connected loads, see approval certificate.) Vo data interface: Terminals:

Umin: Ui: Ii: Pi: External capacitance: External inductance: Ex separating unit: RS-485 data interface: Terminals:

Umin: Ui: Ii: Pi: Internal capacitance: Internal inductance: External capacitance: External inductance: Ex separating unit:

Internal Connector (Binder) X15,4 (+) 4 X15,3 (-) 1 X15,1 and X15,2 open

49

7.0 V 13.5 V 15 mA 210 mW 2,5 μF 1H KFD2-ST2-Ex1.LB (Pepperl+Fuchs)

X15,4 (+ supply) X15,3 (- supply) X15,2 (line A) X15,1 (line B) 7.0 V 10.5 V 428 mA 900 mW 1,32 μF 600 μH 23,7 μF 1H 17-21S1-S111 / EExi (Bartec)

Note: If the EZD protocol or the RS485 bus is used, the device is supplied via the data interface.

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SPECIFICATIONS

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Temperature input (hardware and software options) For Ex connected loads, see approval certificate.

50

Terminals:

X9,2 (+) X9,1 (-)

Sensor type:

PT 1000

Measuring range: Resolution:

-20°C to 60°C ± 0.2°C

Current-loop connection (version with external supply only!) Terminals:

X22.1 (+) X22,2 (-) 12 V 28 V 3.5 mA 23 mA

Uext (min): Uext (max): Imin: Imax: External load (max.):

Current output with - minimum flow rate: - maximum flow rate: - Warning: - Alarm: Accuracy, current output:

RLmax = (Uext - 10 V) / Imax (in ) e.g. Uext = 16 V  RLmax = (16 V - 10 V) / 23 mA = 260  4 mA 20 mA 3.5 mA 23 mA Better than 1% of the final value

Data for the use in hazardous areas: Ui Ii Pi Ci Li

= = = = =

28 V 110 mA 770 mW 2.2 nF 110 μH

Materials used for the meter case Spheroidal cast iron or steel, depending on the pressure class and the nominal diameter. ...............................................................................................................................................................................................................


SPECIFICATIONS

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Examples of connection Battery-operated device Hazardous area

Safe area 24 V/DC PE

51

X4 1 2 3 4 5 6

PA

isolating amplifier KFD2-SOT-Ex1 (24 V/DC)

alarm output LIYCY 2x0.75 mm2 blue

1 3

PE 12 11 7 8

Alarm

isolating amplifiers* KFD2-SOT-Ex2 (24 V/DC)

4

PE 12 11

6 9

connector, Binder series 693

10

pulse outputs LIYCY 2x2x0.75 mm2 blue 1 3

HF

PE 12 11 7 8

LF

connector pin assignment:

4

3

5

2 6

1

HF + (6) HF - (3) LF + (4) LF - (1)

* If 2-channel isolating amplifiers are used, the two inputs must be separated!

PE (screen)

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SPECIFICATIONS

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Mains-powered device (Ex design) (Connection only via the current module with built in backup battery)

Hazardous area 52

24 V/DC

Safe area

PE

X4 1 2 3 4 5 6

PA

isolating amplifier KFD2-SOT-Ex1 (24 V/DC)

alarm output LIYCY 2x0.75 mm2 blue

1 3

PE 12 11 7 8

Alarm

isolating amplifiers* KFD2-SOT-Ex2 (24 V/DC)

4

PE 12 11

6 9

connector, Binder series 693

pulse outputs

10

LIYCY 2x2x0.75 mm2 blue 1 3

HF

PE 12 11 7 8

LF

supply unit KFD2-STC3-Ex1 (24 V/DC)

current output LIYCY 2x0.75 mm2 blue

connector pin assignment:

4

3

5

2 6

1

HF + (6) HF - (3) LF + (4) LF - (1)

* If 2-channel isolating amplifiers are used, the two inputs must be separated!

PE (screen)

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SPECIFICATIONS

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Mains-powered device (Non-Ex design) (Connection only via the current module with built in backup battery) 24 V/DC PE

Safe area

53

X4 1 2 3 4 5 6

PA

alarm output LIYCY 2x0.75 mm2 blue

HF-, NF- und Alarmausgang:

Alarm

Umax: 30 V Maximale Summe der Ströme in allen 3 Ausgängen: 400 mA

HF

connector, Binder series 693

outputs

LF

LIYCY 3x2x0.75 mm2 blue

supply unit KFD2-STC3-Ex1* (24 V/DC)

connector pin assignment:

4

3

5

2 6

1

4-20 mA + (5) 4-20 mA - (2) HF + (6) HF (3) LF + (4) LF (1)

* Alternatively also the supply unit type KFD2-CR-1.300 is applicable. If the current output is not used, a direct connection to 24 V/DC is possible.

PE (screen)

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SPECIFICATIONS

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Overview of Parameters for the TRZ 03 TE / TEL

54

Parameter

Setting

Example (display)

A01

Main totalizer (Vm)

0 to 99999999

12345678

A02

Flow rate (Qm)

A03

Disturbing quantity totalizer

0 to 99999999

123

A04

Start-stop totalizer

0 to 99999999

00000000

A05

Resettable totalizer

0 to 99999999

00000000

A06

Meter factor

in all: six digits

A07

Pulse scaler

0.01; 0.1; 1; 10; 100

L

A08

Configuration

TERZ operating mode

00011021 MOD

A09

Error

Rolling display

B01

Serial number

C01

Current output

C02

Flow rate at 4 mA

0 to 999999.99

20.000 --

C03

Flow rate at 20 mA

0 to 999999.99

650.000 --

C04

Calibration current

4.000 to 20.000

4.000 mA

C05

Current output mode

3 MOD

C06

Correction factor - Offset

0 – Default value 1 – Flow rate Qm 0 to 99999999

1234.5678 --

C07

Correction factor - Rise

0 to 99999999

1234.5678 --

C08

Damping display / current output

0 to 0.9

Z06

Frequency display

12.3

m³ m³/h

12.3456 I/m³ 1

--

0 ERR 1.004 VER

Main supply design

12.345 mA

0.4 -651 Hz

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SPECIFICATIONS

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Measuring ranges/Dimensions/Pressure classes of TRZ 03-TE DN

Size

Measuring range Qmin-Qmax m3/h

mm in 50 2"

Ua

1:10/1:20 13-65* 10-100

G 100 G 160 G 250 G 160 G 250 G 400 G 400 G 650 G 1000

16-160 13-250 20-400 13-250 20-400 32-650 32-650 50-1000 80-1600

20-650 32-1000 50-1600

200 8"

G 1000 G 1600

80-1600 130-2500

250 10"

G 1000 G 1600 G 2500

300 12"

in 0,1 0,1

50 2"

1 1 1 1 1 1 1 1 10

100 4"

50-1600 80-2500

10 10

200 8"

80-1600 130-2500 200-4000

80-2500 130-4000

10 10 10

250 10"

G 2500 G 4000

200-4000 320-6500

130-4000 200-6500

10 10

300 12"

400 16"

G 4000 G 6500

320- 6500 500-10000

200-6500 320-10000

10 10

400 16"

500 20"

G 6500 G 10000

500-10000 800-16000

320-10000 500-16000

10 100

500 20"

600 24"

G 10000 G 16000

800-16000 1300-25000

500-16000 800-25000

100 100

600 24"

80 3" 100 4" 150 6"

Dimensions

mm

1:30

G 40 G 65

DN Pressure classes / Approx. weight

80 3"

150 6"

PN

kg

10/16 13 25/40 21 64/100 21 10/16 20 25/40 25 64/100 34 10/16 25 25/40 32 64/100 45 10/16 50 25/40 60 64/100 70/90 10/16 75 25/40 95 64/100 150/160 10/16 100/110 25/40 135/150 64/100 180/225 10/16 138/150 25/40 225/265 64/100 275/290 10/16 200/290 25/40 350/440 64/100 525/580 10/16 560/610 25/40 640/700 64/100 830/1060 10/16 900/940 25/40 980/1075 64/100 1230/1570

ANSI 150 300 600 150 300 600 150 300 600 150 300 600 150 300 600 150 300 600 150 300 600 150 300 600 150 300 600 150 300 600

kg

L

H

C

13 13 150 210 60 21 20 25 240 230 96 36 30 240 35 300 260 120 55 270 50 265 65 450 265 180 100 285 100 300 120 600 320 240 160 320 110 160 750 330 300 260 155 230 900 360 360 310 350 460 1200 400 480 575 620 650 1500 450 600 1075 950 1000 1800 500 720 1600

55

* (Measuring range 1:5)

DN

From DN 80 to DN 300, the turbine meters of the PN 10/16 pressure class can be fitted with a thermowell to accommodate a resistance thermometer.

C

H

PN pressure classes complying with DIN 2401, part 1, ANSI pressure classes complying with B16.5.

L

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SPECIFICATIONS

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Measuring ranges/Dimensions/Pressure classes of TRZ 03-TEL DN

Size

Measuring range Qmin-Qmax m3/h

mm

1:10/1:20

in

56

50 2"

Ua

13-65* 10-100

G 100 G 160 G 250 G 160 G 250 G 400 G 400 G 650 G 1000

16-160 13-250 20-400 13-250 20-400 32-650 32-650 50-1000 80-1600

20-650 32-1000 50-1600

200 8"

G 1000 G 1600

80-1600 130-2500

250 10"

G 1000 G 1600 G 2500

300 12"

in 0.1 0.1

50 2"

1 1 1 1 1 1 1 1 10

100 4"

50-1600 80-2500

10 10

200 8"

80-1600 130-2500 200-4000

80-2500 130-4000

10 10 10

250 10"

G 2500 G 4000

200-4000 320-6500

130-4000 200-6500

10 10

300 12"

400 16"

G 4000 G 6500

320- 6500 500-10000

200-6500 320-10000

10 10

400 16"

500 20"

G 6500 G 10000

500-10000 800-16000

320-10000 500-16000

10 100

500 20"

600 24"

G 10000 G 16000

800-16000 1300-25000

500-16000 800-25000

100 100

600 24"

80 3" 100 4" 150 6"

Dimensions

mm

1:30

G 40 G 65

DN Pressure classes / Approx. weight

80 3"

150 6"

L

L

10/16 13 25/40 21 64/100 21 10/16 20 25/40 25 64/100 34 10/16 25 25/40 32 64/100 45 10/16 50 25/40 60 64/100 70/90 10/16 75 25/40 95 64/100 150/160 10/16 100/110 25/40 135/150 64/100 180/225 10/16 140/155 25/40 230/270 64/100 280/295 10/16 290/300 25/40 360/450 64/100 535/590 10/16 575/625 25/40 655/715 64/100 845/1075 10/16 925/965 25/40 1000/1100 64/100 1250/1590

L 150 300 600 150 300 600 150 300 600 150 300 600 150 300 600 150 300 600 150 300 600 150 300 600 150 300 600 150 300 600

kg

L

H

C

13 235 13 150 235 28 21 250 20 260 25 240 260 40 36 270 30 270 35 300 275 50 55 290 50 290 65 450 300 80 100 325 100 120 600 290 120 160 110 160 750 330 165 260 160 235 900 360 200 315 360 470 1200 400 300 585 635 665 1500 450 385 1090 975 1025 1800 500 480 1625

* (Measuring range 1:5)

DN

From DN 80 to DN 300, the turbine meters of the PN 10/16 pressure class can be fitted with a thermowell to accommodate a resistance thermometer.

C

H

PN pressure classes complying with DIN 2401, part 1, ANSI pressure classes complying with B16.5.

L

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SPECIFICATIONS

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Overview of the materials used Designation Meter case Flow straightener Turbine wheel Measuring element case Measuring element bearings Ball bearings Shafts Set screw Permanent magnet Sensor sleeve with sensor O-rings

Material GGG40, cast steel or welded steel Delrin, aluminium or steel Delrin or aluminium Aluminium Aluminium and/or stainless steel Stainless steel Stainless steel Steel Oerstit 500 Nirosta steel 83FKM592

57

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ANNEX

...............................................................................................................................................................................................................

Annex Matrix of the TRZ 03-TE / TEL Coordinate

Specification

58

Terz94 1 Channel

TRZ03-TE/TEL (Batt.) 2 Channel

Terz94-S 1 Channel

TRZ03-TE/TEL (main supply) 2 Channel

X X

X X

X X

X X

X X X X X X

NO NO

NO NO

NO NO

X X X X X X

X X X X X X

NO NO

X X X X X X

A01 A02 A03 A04 A05 A06 A07 A08 A09 A10 A11

Main Totalizer Vm Flow rate (Qm) Disturbing quantity totalizer Start / Stop totalizer Resettable totalizer Meter factor Pulse scaler Configuration Error Operating mode Pulse X from X:Y Operating mode Pulse Y from X:Y

B01

Serial number

X

X

X

X

C01 C02 C03 C04 C05 C06 C07 C08

Current output Flow rate at 4 mA Flow rate at 20 mA Calibration current Current output mode Correction factor – offset Correction factor – Rise Damping display / current output

NO NO NO NO NO NO NO NO

NO NO NO NO NO NO NO NO

X X X X X X X X

X X X X X X X X

Z01

Number of digit positions following a decimal point Factor Divisor Direction of rotation for ENCO Totalizer Frequency Maximum flow value Frequency-mode Error state Number of pulses Version number

NO

NO

NO

NO

NO NO NO NO

NO NO NO NO

NO NO NO NO

NO NO NO NO

Not available Available Available in service mode

NO

Z02 Z03 Z04 Z05 Z06 Z07 Z08 Z09 Z10 Z11

NO

X

0 0 0 X X

X

X

0 0 0 X X

NO

X

0 0 0 X X

X

X

0 0 0 X X

X

0

In case only a part of the matrix is displayed. It any depends on the operating mode, which fields are displayed. Fields, which have no function in the selected operating mode are blanked out. ...............................................................................................................................................................................................................


ANNEX

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TRZ 03-TE/TEL button assignments

TRZ 03-TE/TEL 94 Display Mode 59

> 2 sec.: segment test and switching to Vm

12345678 m3

< 2 sec.: change of the unit in the coordinate afterwards scrolling in the matrix (upwards Scrolling in the matrix (upwards) Scrolling in the matrix (downwards)

P

P

> 2 sec.: switch to the programming mode < 2 sec.: switch to the coordinate Button at the rear of the board

TRZ 03-TE/TEL Programming Mode

12345678 m3

Abortion of programming

Flashing digit +1 Flashing digit -1

P P

Set decimal point / reset (if float) Move to the next digit Button at the rear of the board

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ANNEX

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Converting the TRZ 03-TE/TEL into the version with external supply and current output The battery powered version can be converted into the mains powered version by installing another board. 60

      

Remove the battery (see chapter “Changing the battery”). Remove the jumper for battery-powered mode (1-2) on the socket X2_0 of the board. Srew the 4 short stay bolts onto the present stay bolts on the board. Plug the current module TERZ94trm with a 12-pin connector (X2_1) into the socket X2_0. Apply the supply voltage (24V) to terminal X22 (1 +, 2 - ). Switch on the power supply (24 V). Check the current output:  Set the current output in channel A09 to I-Out (mode 1 or 2).  Channel C02: enter flow rate at 4 mA.  Channel C03: enter flow rate at 20 mA.  Set channel C04 (default value) to 10.0 mA.  Set channel C05 (output mode) to 1 (current output is proportional to the flow rate).  Channel C06: enter correction value for the current offset (see value on the board)  Channel C07: enter correction value for the current rise (see value on the board)  In the event that a recalibration should be necessary, there is a PC-based program available which will define the new offset and rise values. Now the mains powered version is operational.

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ANNEX

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Cable type abbreviations Basic type: Control cable (twisted cable) Example 61 Li

Y

C

Y

2x

0.75

blue Sheath colour Conductor cross section / mm

2

Number of cores Sheath material  Thermoplastic resins Special features  Screen braiding Insulation material  Thermoplastic resins Cable designation  Stranded core

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/trz03te_manual_en