PTC255
Portable temperature calibrator
Price on request
The calibrators of the new Druck Premium Temperature Calibrator series are characterised by their unparalleled performance and outstanding ease of operation.
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Druck temperature calibrators are used for the verification of the functionality and calibration of temperature measuring devices and temperature sensors with a special focus on long-term reliability and utmost accuracy in combination with easy operation.• Covering all calibration tasks with only one model: Dry block, infrared and surface calibration as well as calibration by means of a calibration bath
Every Druck temperature calibrator is meticulously tested for accuracy and stability. This is attested by our standard calibration certificate, which we issue with every temperature calibrator, or by means of an optional ISO 17025 calibration certificate. This is to guarantee that you receive a perfect product which can be traced back to national and international temperature measurement standards.
Features
Four functions in one temperature calibrator
• Cost savings due to a reduction in the number of versions required
• Quick and easy change between the calibration functions
• Additional calibration functions for your application
• Dry block for aseptic sensors
• Air Shield Insert for the best measurement uncertainties
• Different media for liquid calibrationAutomatic calibration with camera
• The patented camera system automatically creates a recording of the DUT display at each calibration point. The subsequent calibration point is approached directly afterwards
In calibration processes for devices under test with their own temperature display, the display of the DUT must be read for each calibration point. The read value is transferred by the user to the calibrator or the calibration certificate, and the subsequent calibration point is only approached after a manual acknowledgement. For this purpose, the user must return to the calibrator at each calibration point. In some cases, this can lead to long delays if the user carries out other tasks in between. With our automatic calibration with a camera, these time-intensive intermediate steps are no longer needed:
• No user interaction is required during the calibration process, as it is implemented automatically
• All test points are approached without waiting times
• Upon completion of the entire calibration process, the user transmits the data of the created display records to the calibrator or calibration certificate
• During the entire calibration process, the user is free to carry out other tasks
• The visual records of the device under test display at each calibration point are saved and attached to the calibration certificate as verification -
Technical data
PTC255 / PTC255i Temperature range Room temperature...255 °C Room temperature...491 °F Dimension for thecalibration insert Ø 60 x 170 mm (calibration insert easily exchangeable) Dry block Air Shield Insert External reference temperature sensor Display accuracy ±0.08 °C ±0.144 °F Temperature stability ±0.010 °C 0.018 °F Temperaturedistribution
Axial
Radial
±0.080 °C
±0.050 °C
±0.144 °F
±0.009 °FInfluence of load ±0.025 °C 0.045 °F Dry block External reference temperature sensor Internal reference temperature sensor Display accuracy ±0.25 °C ±0.45 °F ±0.5 °C ±0.9 °F Temperature stability ±0.020 °C ±0.036 °F ±0.05 °C ±0.09 °F Temperaturedistribution
Axial
Radial
±0.300 °C
±0.150 °C
±0.540 °F
±0.270 °F
±0.300 °C
±0.150 °C
±0.540 °F
±0.270 °FInfluence of load ±0.100 °C ±0.180 °F ±0.450 °C ±0.810 °F Calibration bath(stirred), tubinsert External reference temperature sensor Internal reference temperature sensor Display accuracy ±0.35 °C 0.63 °F ±0.53 °C 0.954 °F Temperature stability ±0.05 °C 0.09 °F ±0.100 °C 0.180 °F Temperaturedistribution
Axial
Radial
±0.300 °C
±0.150 °C
0.540 °F
0.270 °F
±0.300 °C
±0.150 °C
0.540 °F
0.270 °FInfluence of load ±0.100 °C ±0.180 °F ±0.400 °C ±0.720 °F Calibration bath(stirred), directfilling External reference temperature sensor Internal reference temperature sensor Display accuracy ±0.18 °C ±0.324 °F ±0.46 °C ±0.828 °F Temperature stability ±0.040 °C ±0.072 °F ±0.050 °C ±0.090 °F Temperaturedistribution
Axial
Radial
±0.150 °C
±0.150 °C
±0.270 °F
±0.270 °F
±0.150 °C
±0.150 °C
±0.270 °F
±0.270 °FInfluence of load ±0.100 °C ±0.180 °F ±0.400 °C ±0.720 °F Infrared calibration External reference temperature sensor Internal reference temperature sensor Display accuracy ±0.5 °C ±0.9 °F ±0.5 °C ±0.9 °F Temperature stability ±0.05 °C ±0.09 °F ±0.05 °C ±0.09 °F Emission factor 0.9994 Surface calibration External reference temperature sensor Display accuracy ±1 °C ±1.8 °F Temperature stability ±0.2 °C ±0.36 °F
Temperature calibrator PTC255i: integrated measuring instrument Technical dataTC255 / PTC255i Heating time 20 °C…245 °C
20 °C…255 °C68...473 °F
68...491 °F15 min
17 minCooling time 225 °C…30 °C 491...86 °F 50 min Resolution of the temperature display 0.1 / 0.01 / 0.001 °C (selectable) 0.1/0.01/0.001 °F (selectable) Hysteresis ±0.010 °C ±0.018 °F Temperature units °C / °F / K (selectable) Reference temperature sensor internal, fixed installation / external (selectable) Interfaces Ethernet, 3 x USB Connectivity OPC UA, serial communication, HTTP. Details and further possibilities on request. Dimensions Width
Height
Depth210 mm
330 + 50 mm (Handle)
300 mmWeight Approx. 8.5 kg Power supply 100...115 V 60 Hz / 230 V 50 Hz, Protective conductor (PE) needed Power consumption Approx. 1000 W Adjustable temperature range 0...255 °C 32...491 °F Display Brilliant color touchscreen (7 inches), multi panel safety glass Approvals 
Temperature calibrator PTC165i: integrated measuring instrument Technical dataDevice under test inputs - resistance thermometers
Number of channels
2
Connection
4 mm safety socket, 4 per channel
Connection type
2-, 3-, 4-wire technology
Resistance range
Pt100
Pt1000
0…400 Ω
0…4000 Ω
Accuracy
Pt100
Pt1000
±0.03 °C
±0.06 °C
±0.054 °F
±0.108 °F
Device under test inputs - thermocouple
Number of channels
2
Connection
2x thermocouple socket (mini)
Measuring range
-10…100 mV
Accuracy cold junction
±0.3 °C
±0.054 °F
Accuracy
Type K
Type J
Type N
Type E
Type T
Type R
Type S
±0.08 °C
±0.07 °C
±0.13 °C
±0.06 °C
±0.09 °C
±0.78 °C
±0.73 °C
±0.144 °F
±0.126 °F
±0.234 °F
±0.108 °F
±0.162 °F
±1.404 °F
±1.314 °F
Standard signal input (current)
Number of channels
1
Connection
4 mm safety socket
Measuring range
0…24 mA
Accuracy
0.01 % of range
Standard signal input (voltage)
Number of channels
1
Connection
4 mm safety socket
Measuring range
0…12 VDC
Accuracy
0.01 % of range
Switch test
Number of channels
2
Transmitter supply
Output current
Max. 24 mA
Output voltage
24 VDC
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Documents:
Documents Upload Date Size Druck PTC255_255i Datasheet 2025.1.28 3.1 MB Druck PTC255_255i User Manual 2024.8.18 4.3 MB