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
!
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 11â&#x20AC;&#x2030;/â&#x20AC;&#x2030;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
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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.
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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