Keller Cellatemp PK 2014

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Radiation Thermometer CellaTemp PK Series

For fast, non-contact and wear-free temperature measurements from a safe distance • Temperature ranges from -30 … 2500 °C / -22 … 4532 °F • Analogue output 0/4 - 20 mA • Universally configurable switching output • Precision lenses provide high optical resolution • L arge measuring ranges combined with very high temperature resolution • All parameters adjustable via control key • Test function to be activated by control key or control signal • Easy installation thanks to M30 screw thread mounting • Bright high-intensity LED display • Available as compact unit or fibre optic unit


Range of models

CellaTemp PK 18 The CellaTemp PK 18 comes with an especially resilient lens, allowing its use even in extreme environmental conditions, such as in asphalt and concrete mixing plants, preventing the lens from damage caused by aggressive vapours and dust.

Compact pyrometers

CellaTemp PK 29

Type

Temp. range

The CellaTemp PK 29 is equipped with a special UV blocking fi lter, thus avoiding that the measurement is affected by daylight. This pyrometer also responds in a substantially less sensitive way to refl ective external radiation from nearby hot objects than conventional devices working at short wavelengths. Therefore, the CellaTemp PK 29 can be used for a variety of applications in the metal-working industry and, in particular, for temperature measurements of aluminium and bright metals at low temperatures. Thanks to the UV blocking fi lter, it is also suitable to measure processes where diodes, Nd:YAG or CO2 lasers are used for heating. This high-energy laser radiation does not affect the measurement.

Application

PK 11

0 - 1000 °C

nonmetals

PK 12

-30 - 1300 °C

PK 14

0 - 1500 °C

large objects

PK 18

0 - 1500 °C

nonmetals in an aggressive environment

PK 21

250 - 1600 °C

metals, ceramics, molten glass

PK 29

150 - 1800 °C

aluminium, bright, shiny metal surfaces, laser applications

PK 31

500 - 2500 °C

metals, ceramics at high temperatures

PK 41

300 - 1300 °C

glass surfaces

PK 42

500 - 2500 °C

glass surfaces

PK 51

400 - 1400 °C

fl ame-heated furnaces

objects at low temperatures

CellaTemp PK 41 / 42 In the range of 4.5 - 8 µm glass has an emissivity of almost 100%. Above 5 µm, atmospheric infl uences, such as humidity or water vapour, have an adverse infl uence on the measurement readings. The CellaTemp PK 41/42 is provided with a blocking fi lter with a spectral sensitivity of 4.5 - 4.8 µm. allowing it to measure the temperature from the near surface area of the glass. Owing to its wavelength, changes in thickness, different types of glass, or varying moisture contents in the atmosphere do not affect the measurement reading.

CellaTemp PK 51

Pyrometers with fi bre optic cable and optical measuring head

The CellaTemp PK 51 was developed especially for temperature measurements in fl ame heated furnaces. Thanks to the selective spectral range of 3.9 µm, water vapour and CO2 in the pyrometer´s fi eld of vision have no effect on the measuring results, even when measuring from large distances. This allows for precise measurements through fl ames and combustion gases.

CellaTemp PKF 26 / 36 Type

Temp. range

Application

PKF 26

300 - 1600 °C

metals, ceramics, molten glass

PKF 36

550 - 2500 °C

metals, ceramics at high temperatures

The electronic unit of the CellaTemp PKF 26/36 is separated from the measuring head. A fi bre optic cable transmits the infrared radiation to the electronic unit where it is transformed into an electric signal. The measuring head is entirely composed of mechanical and optical components, enabling its use in ambient temperatures up to 250 °C without needing auxiliary cooling systems. The fi bre optics version is also used in confi ned spaces or powerful electromagnetic fi elds. The fi bre optics cable is detachable both from the measuring head and the electronic unit using a screw-in FSMA connector. This makes it very easy to install the cable which can have a length of up to 50 m.

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LED status – switching

Test function

LED for °C / °F Plug M12

M30 thread

A functional test of the device and the signal processing unit can be performed at any time via an external control signal or via the operating menu. The analogue output generates an electric current of 20.5 mA and the switching function is triggered.

Robust lens with anti-reflex coating

Function The radiation thermometer CellaTemp PK detects the infrared radiation emitted by an object and converts it into an electric signal. The detected temperature is displayed and transmitted to the analogue output for further processing. A unique combination of analogue and digital linearization features provides the CellaTemp PK with a high-resolution signal processing unit. Therefore, even with wide measuring ranges, the sensor has a very high temperature resolution while its noise equivalent temperature difference is extremely low. The pyrometer thus supplies stable measurement readings even when the response times are extremely short and the measured temperatures are very low. A microprocessor with high clock speed allows for short response times starting at 2ms. The very bright display unit is equipped with state-of-the-art technology. Even from a great distance it is easy to read and it is energy-effi cient at the same time.

Analogue output

7- segment LED display

3 control keys

Service function

Switching output The presence of a hot object in the sensor’s fi eld of vision triggers a switching operation when a pre-defi ned temperature threshold is exceeded. An LED indicates this switching status. Optionally, the output can operate as a normally closed or normally open contact. This confi gurable switch on/switch off delay allows for a suppression of short interference pulses and for an ideal adaptation of the switching output to the response time of a PLC.

Optical system The optical system of the CellaTemp PK is equipped with lenses with anti-refl ective coatings. This makes the lenses very durable, easy to clean and perfectly suitable for rough industrial use. The excellent imaging characteristics of the precision lenses provide a high optical resolution and a minimum sensitivity to stray light. This keeps the measurement reading stable even when object sizes and distances change.

The analogue output supplies a signal linear to the temperature; 0/4 – 20 mA are optionally available. The range setting can be confi gured with the control keys. The analogue output deactivates and a warning appears on the display when the internal temperature reaches ≥ 75 °C.

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The service function is used during setup or running operation to apply a simulated temperature value that is displayed and transmitted via the analogue output. This feature checks the correct functioning and range setting for the downstream signal processing units (display, controller, PLC) quickly and safely even without a hot object.

Diagnostic function The diagnostic function ensures a high operational reliability. Incorrect supply voltages, reverse polarities of connections, overloads at the switching output, unacceptable ambient temperatures or out-of-range object temperatures appear on the display as error messages.

Laser module During setup of the CellaTemp PKF 26/36 the laser module PS 01/P is mounted to the end of the fi bre optic cable to adjust the sensor’s focussing range and to perform an alignment to the target.


Technical data Resolution Current output 0.2 K + 0.03 % of selected range Display 0.1 K for T < 200 °C 1 K for T ≥ 200 °C Voltage supply 18 ... 32 V DC Current consumption ≤ 50 mA at 24 V DC without load current Ambient temperature 0 - 65 °C Storage temperature -20 - +80 °C Permissible humidity 95 % r.H. max. (non-condensing) Protection IP65 according to DIN 40050 Protection class III Housing material V2A (1.4305) Connectivity M12 thread 5-pin connection A-coding (DIN EN 61076-2-101) Weight approx. 0.4 kg

Approvals EMC  EN 61000-6-4  EN 61000-6-2 Shock resistance (EN 60068-2-27)  30 g (11 mg) Vibration resistance (EN 60068-2-6)  5 g (10...2000 Hz)

Outputs

Adjustable parameters

Analogue output  0/4 - 20 mA linear according to NAMUR 43, scalable  Load max. 500 Ω Switching output  PNP open collector active from supply voltage (positive)  NC or NO contact  Current rating150 mA  timed safety shutdown at overload ≥ 250 mA Reverse polarity protection  for supply voltage  for analogue output  for switching output

Test input Digital input  Typ 3 (IEC 61131-2) Low level ≤ 5 V DC High level ≥ 11 V DC Load current ≤ 11.6 mA at 30 V DC

Display LED display  4 x 7 segments, red  Height of digits 8 mm 1 x LED  Display of switching status, overload and incorrect connection of supply voltage

Analogue output  0/4 - 20 mA  Scaling of analogue output Switching output  Switching point and reset point  Switching function: NC / NO contact  Switch on/switch off delay General parameters  Quick emissivity setting via temperature display  Damping time constant  Hold time of peak picker  Reset to factory default setting  Key lock  Display  Temperature unit °C / °F  Temperature simulation  Test function

Error diagnostic  Output overload  Sensor excess temperature  Out-of-range (high/low)  Incorrect supply voltage connection  Incorrect supply voltage

Pin assignment

2 x LED  Display of temperature unit (°C or °F)

Operating elements

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3 control keys

Fibre optics cable for CellaTemp PKF Type

Length

Weight

LWL-2HT

2m

0.08 kg

LWL-5HT

5m

0.19 kg

LWL-10HT

10 m

0.38 kg

Other lengths up to 50 m on request Ambient temperature -40 ... +250 °C Material Nickel-plated brass 4

I t is imperative to use a shielded cable

Shipment includes  Radiation thermometer  Operating manual  2 Mounting nuts Additionally with CellaTemp PKF  Measuring head  Laser module PS 01/P  Fibre optic cable (state required length)

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rder the connecting cable O VK 02/L separately in the desired length.


Models and technical data Type

Temp. range

Spectral range

Focus range

Spot size

Precision*

Response Repeatability time t 98

Temperature coefficient

Compact pyrometer with fixed focus lens PK 11 AF 1

0 - 1000 °C 32 - 1832 °F

0.3 m

Ø 11 mm

PK 12 AF 1

-30 - 300 °C -22 - 572 °F

0.3 m

Ø 19 mm

8 - 14 μm

≤ 60 ms

0.75% of temp. reading [°C] plus 2.0 K

≤ 90 ms

PK 14 AF 1

0 - 500 °C 32 - 932 °F

1.0 m

Ø 0.5 m

PK 18 AF 1

0 - 500 °C 32 - 932 °F

0.3 m

Ø 11 mm

PK 21 AF 1

250 - 1600 °C 482 - 2912 °F

1.0 1.7 μm

1.5 m

Ø 12 mm

0.3% of temp. reading [°C] plus 2.5 K

≤ 2 ms for T > 600 °C

PK 29 AF 1

150 -   800 °C 302 - 1472 °F

1.8 2.2 μm

0.3 m

Ø 7.5 mm

0.5% of temp. reading [°C] plus 2.5 K

≤ 2 ms for T > 300 °C

PK 31 AF 1

500 - 2500 °C 932 - 4532 °F

0.78 1.06 μm

1.5 m

Ø 9 mm

0.2% of temp. reading [°C] plus 2.5 K

≤ 2 ms for T > 900 °C

PK 41 AF 1

300 - 1300 °C 572 - 2372 °F

Ø 12 mm

0.5% of temp. reading [°C] plus 2.5 K

PK 42 AF 1

500 - 2500 °C 932 - 4532 °F

PK 51 AF 1

400 - 1400 °C 752 - 2552 °F

4.6 4.9 μm

3.8 4.0 μm

0.4 m

0.4 m

1K

0.1 K/K (für T < 250 °C) 0.04 %/K (für T > 250 °C)

1K

0.07 %/K

1K

0.07 %/K

≤ 60 ms

≤ 60 ms

Ø 8.5 mm

1.0% of temp. reading [°C]

Ø 12 mm

1.0% of temp. reading [°C]

2K ≤ 100 ms

0.04 %/K 4K

≤ 100 ms

2K

0.04 %/K

2K

0.07 %/K

Pyrometer with fibre optics cable and focusable measuring head PKF 26 AF 1

300 - 1600 °C 572 - 2912 °F

1.0 1.7 μm

180 : 1 0.2 m ... ∞

PKF 36 AF 1

550 - 2500 °C 1022 - 4532 °F

0.78 1.06 μm

190 : 1

*(at e = 1 and Ta = +23 °C)

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0.3% of temp. reading [°C] plus 2.5 K

≤ 2 ms for T > 600 °C ≤ 2 ms for T > 900 °C


Dimensions Compact pyrometer

Lengths of compact pyrometers Type

Length

PK 11 PK 12

183 mm

PK 14 PK 18 PK 21 PK 29

208 mm

PK 31

Pyrometer with fibre optics cable

PK 41 PK 42

199 mm

PK 51

M30x1,5

34,5 mm

67,9 mm

Target diagram1 CellaTemp PK 11 / 18

CellaTemp PK 12 Target diameter [mm]

Target diameter [mm] 15

13

11

20

29

39

48

57

66

75

100

200

300

400

500

600

700

800

900 1000

259

350

442

18

18,5

19

31

44

56

68

81

93

105

2000 3000

4000

5000

100

200

300

400

500

600

700

800

900

1000 2000

167

230

350

475

600

3000 4000 5000

Target distance [mm]

Target distance [mm]

CellaTemp PK 14

CellaTemp PK 21 Target diameter [mm]

Target diameter [mm] 50

100

150

200

250

300

350

400

450

500

1000

1500 2000 2500

12

12

12

12

12

12

100

200

300

400

500

600

700

800

900

1000 2000

3000 4000 5000

100

200

300

400

500

1000

Target distance [mm]

12

20

1500

2000

28

2500 3000

Target distance [mm]

6

36

44

52

60

68

3500

4000

4500

5000


Target diagram1 CellaTemp PK 29

CellaTemp PK 31 Target diameter [mm]

Target diameter [mm] 17,5

100

280

400

505

14,6

14,2

13,8

13,4

13

11

2000 3000

4000

5000

100

200

300

400

500

1000

190

14

10,5

21

32

42

53

63

74

84

200

300

400

500

600

700

800

900 1000

Target distance [mm]

Target diameter [mm] 14

12

20

28

35

43

50

100

200

300

400

500

600

700

800

900

134

58

1000 2000

209

285

16

13

11

8.5

15

22

28

35

42

3000 4000 5000

100

200

300

400

500

600

49

57

65

3500

4000

4500

5000

700

800

900

48

115

181

247

1000 2000

313

3000 4000 5000

Target distance [mm]

CellaTemp PKF 36 2

CellaTemp PKF 26 2 Target diameter [mm]

Target diameter [mm]

6

11

17

22

28

33

39

44

50

56

1000

2000

3000

4000

5000

6000

7000

8000

9000

10000

D = 190:1

2

0

5

10.5

16

21

26

31.5

37

42

47

52.5

1000

2000

3000

4000

5000

6000

7000

8000

9000

10000

Target distance [mm]

2

2500 3000

360

Target distance [mm]

1

2000

41

33

Target diameter [mm]

16

0

1500

25

CellaTemp PK 42

17

2

17

Target distance [mm]

CellaTemp PK 41 / 51

D = 180:1

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Target distance [mm]

Taking into account the lens tolerances at 90% of the maximum amount of radiated energy. The specified target spot diameter is valid for the specified distance.

Supplementary lenses An additional lens can be mounted onto the pyrometer‘s lens system to capture smaller target spots.

Pyrometer

Supplementary lens

Distance [mm]

Spot size Ø [mm]

PK 11

PK 11/E AF 1

45

2

PK 21 / 31

PK 21/E AF 1

520

5

Pyrometer PK

Supplementary lens 7


Accessories

shielded cable VK 02 / L AF 1: 15 m VK 02 / L AF 2: 10 m

Laser pointer PS 01/M AF 3

Laser pointer PS 01/P

Air purge PS 01/A

Air purge PS 01/A AF 2

Oscillating mirror PZ 20/X AF 5

Thermal insulating tube PS 01/K

Cooling jacket PS 01/B AF 2

Bayonet coupling PS 11/N AF 4

90° Deflection mirror PS 11/W

Supplementary tube ZA 01/Q-35

Intermediate tube ZA 01/M

Intermediate tube ZA 01/B

Intermediate tube ZA 01/Q AF 2

Clamping collar with angle PS 11/K-35 AF 2

Mounting bracket PS 11/U

Flange PS 01/N

Flange ZA 01/I

Flange ZA 01/W

Flange DN 50

Tube cap ZA 01/A

Bracket PS 11/P

Ball flange ZA 01/D

Supplementary lens PK 11/E (for PK 11) PK 21/E (for PK 21/ 31)

Protective lens PS 01/I AF 2 (quartz) PS 15/I (sapphire) PS 11/D AF 2 (ZnS)

Get accessory details on www.keller-msr.com 8


Typical assemblies

Mounting assembly PK 01-006 consisting of:  Pyrometer PK  Thermal insulating tube PS 01/K  Air purge PS 01/A  Tube cap ZA 01/A  Intermediate tube ZA 01/M  Dust stop ZA 01/C  Ball flange ZA 01/D  Clamp ZA 01/E  Flange ZA 01/I

Mounting assembly PK 21-001 with protective lens consisting of:  Pyrometer PK  Thermal insulating tube PS 01/K  Quartz protective lens PS 01/I AF2  Air purge PS 01/A  Tube cap ZA 01/A  Intermediate tube ZA 01/M  Dust stop ZA 01/C  Ball flange ZA 01/D  Clamp ZA 01/E  Flange ZA 01/I

Mounting assembly PK 01-007 consisting of:  Pyrometer PK  Air purge PS 01/A  Supplementary tube ZA 01/Q-35  Clamping collar with angle PS 11/K-35 AF2

Oscillating mirror PZ 20/X An oscillating mirror can be mounted to the pyrometer. It allows to scan the target object along a line. Use the analogue output in conjuction with a RS-422 interface to collect temperature readings together with target position.

Mounting assembly PK 21-002 with bayonet coupling and protective lens consisting of:  Pyrometer PK  Thermal insulating tube PS 01/K  Bayonet coupling PS 11/N AF4  Quartz protective lens PS 01/I AF2  Air purge PS 01/A AF2  Dust stop ZA 01/C  Intermediate tube ZA 01/M  Ball flange ZA 01/D  Clamp ZA 01/E  Flange ZA 01/W

Mounting assembly PK 01-011 consisting of:  Pyrometer PK  Air purge PS 01/A  Reduction 1 1/4" to M30x1,5  Flange DN 50

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With the included PC software CellaScan the temperature profile is shown online.


Applications

Asphalt and concrete mixing

Crystal growing

Coke oven

Wires, tubes and rods

Filaments / Metal bands

Runner

Incineration plant

Rolling mill

Blast furnace / stove dome

Power plant

Continuous casting

Rotary kiln

Sinter plant

Glass production

Induction heating

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Other products

Portix Series Almost indestructible, portable pyrometers with rugged aluminum housing for universal, rapid measurement.

CellaPort Series Portable one- and two-colourpyrometers with through-the-lens sighting, laser pilot light and USB port.

CellaTemp PA Versatile pyrometers with focusable lens, through-the-lens sighting/ laser spotlight or video camera.

Since 1968, the division MSR ITS of KELLER HCW GmbH develops and produces precise instruments and system solutions for non-contact temperature measurement.

CellaTemp PZ Profibus pyrometers with focusable lens, through the lens sighting or laser spotlight.

Mikro PV Intensity comparison pyrometer for ultra accurate measurement.

CellaTemp PM Ultra miniature pyrometers for very small spaces.

CellaSwitch Compact infrared switch with LED display and auto-diagnostics.

CellaSwitch-LWL Compact fiber optics infrared switch with LED display and autodiagnostics.

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A worldwide network of distributors and service centers provides professional expertise and services.

Subject to technical changes 2014/11

CellaTemp PA-LWL Versatile fiber optics pyrometers with focusable head and laser spotlight.

With the very large product range of more than 200 models MSR ITS offers instruments and system solutions for the different measuring tasks.


Distribution and Service Centres Foreign Distributors

• KELLER HCW GmbH

Division MSR Carl-Keller-Straße 2 – 10 49479 Ibbenbüren Germany

www.keller-msr.com Tel. +49 (0) 54 51 85 0 Fax +49 (0) 54 51 89 73 92 info@keller-msr.de

General Distributor for Sweden

INOR Process AB P.O. Box 9125 SE-200 39 Malmö

Tel. +46 (0)40 312 560 Fax +46 (0)40 312 570 sales@inor.se


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