• ADT875 Series Dry Well Calibrators by Additel (88.128491620112%)

    ADT875 Series Dry Well Calibrators by Additel

  • ADT875 Series Dry Well Calibrators by Additel (58.115777525539%)

    ADT875 Series Dry Well Calibrators by Additel

  • ADT875 Series Dry Well Calibrators by Additel (95.419847328244%)

    ADT875 Series Dry Well Calibrators by Additel

  • ADT875 Series Dry Well Calibrators by Additel (106.96721311475%)

    ADT875 Series Dry Well Calibrators by Additel

  • ADT875 Series Dry Well Calibrators by Additel
  • ADT875 Series Dry Well Calibrators by Additel
  • ADT875 Series Dry Well Calibrators by Additel
  • ADT875 Series Dry Well Calibrators by Additel
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ADT875 Series Dry Well Calibrators by Additel



The NEW ADT875  Dry Well Calibrator series from Additel is the calibration tool for those who are serious about portable temperature calibration tools. Not only do the Additel 875 Series Dry Well Calibrators combine excellent performance in stability, radial and axial uniformity, loading with speed, ruggedness and portability, offering a stable heat source.Three models ranging from -40℃ to 660℃

  • Portable, rugged, and quick to temperature
  • Metrology-level performance in stability, uniformity, accuracy and loading effect
  • Dual-zone control
  • Process calibrator option provides a multi-channel readout for a reference
  • Thermometer, RTDs and TCs, task documentation , and HART communication
  • Color touch screen display
  • Choose your own range option
  • Set point control by reference
  • Self-calibration feature
  • Wifi & Bluetooth communication

Specification / Model ADT875-155 ADT875-350 ADT875-660
Temperature Range at 23°c -40°c to 155°c 33°c to 350°c  33°c to 660°c
Display Accuracy +0.18°c to Full Range +0.2°c to Full Range
+0.3°c at 33°c
+0.3°c at 420°c
+0.3°c at 660°c
Stability (30 mins) +0.01°c to Full Range  +0.02°c to Full Range
+0.02°c at 33°c
+0.03°c at 50°c
+0.04°c at 420°c
+0.04°c at 660°c
Axial Uniformity at 60 mm +0.07°c to Full Range
+0.04°c to 33°c
+0.1°c to 200°c
+0.2°c to 350°c
+0.05°c to 33°c
+0.3°c to 420°c
+0.5°c to 660°c
Radial Uniformity +0.1°c (Display Sensor)
+0.01°c to 33°c
+0.15°c to 200°c
+0.02°c to 350°c 
 +0.02°c to 33°c
+0.05°c to 420°c
+0.1°c to 460°c
Loading Effect
+0.1°c (Display Sensor)
+0.02°c (External Sensor)
+0.15°c (Display Sensor)
+0.015°c (External Sensor) 
+0.15°c (Display Sensor)
+0.025°c (External Sensor)
Hysteresis (Display Sensor) 0.025°c 0.03°c   0.1°c
Environmentatl Conditions
8°c to 38°c guaranteed accuracy
0°c to 50°c, 0% to 90% RH non-condensing, 3000 M altitude for normal operation
Storage Conditions -20°c to 60°c 
IP Rating IP20
Immersion Depth 150 mm
Insert OD 25.8 mm 24.8 mm 
Heating Time
13 min: -40°c to 155°c
5 min: -40°c to 23°c
8 min: -23°c to 155°c
5 min: 33°c to 350°c 5 min: 33°c to 660°c
Cooling Time
28 min: 155°c to -40°c
8 min: 155°c to 23°c
20 min: 23°c to -40°c
15 min: 350°c to 100°c
10 min: 100°c to 50°c
10 min: 50°c to 33°c
23 min: 660°c to 100°c
12 min: 100°c to 50°c
12 min: 50°c to 33°c
Typical Time to Stability 10 min
Resolution 0.01°c
Units °C, °F and K
Display 165 mm colout touch screen
Size (H x W x D) 320 mm x 170 mm x 330 mm
Weight 9.9kg 8.2kg
Power Requirements 90-254 VAC, 45-65 Hz, 590 W 90-254 VAC, 45-65 Hz, 1200 W
Mechanical Testing
Vibration: 2 g, (10-500 Hz), 30 min for 2 sides
Impact: 4 g three times
Drop Test: 500 mm
Communication USB A, USB B, RJ45, WiFi, Bluetooth
Localisation English, Chinese, Japanese, Russian, German, French, Italian, Spanish