ADT875 Series Dry Well Calibrators by Additel

ADT875 Dry Well Calibrator by Additel CorpThe 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.

The Process Calibrator option adds the capabilities of a three-channel thermometer readout and a documenting process calibrator. Additel also incorporated a unique option to elect your own temperature range within the range of the model selected. They have called this the 'CYOR' option or Choose Your Own Range option. When purchasing the CYOR option, you pick the upper and lower temperature range needed and Additel will calibrate and optimise the dry well’s performance over your selected range. Each unit has a color touch screen display, dual-zone control, and much more.

  • 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

Process Calibrator Option

Each of the ADT875 models offer have a Process Calibrator (PC) option. This process calibrator option combines the many features found in a HART documenting process calibrator with the temperature dry well. This option includes the ability to measure a reference PRT with two device under test channels which can measure, mA, voltage, switch, RTD or thermocouple. Adding to these measurement functions, the ADT875 has full documenting capability of creating tasks, saving as found and as left results, and HART communication. The snap shot feature allows you to capture all information displayed on the screen with the push of a button. This unit also allow for data logging of all channels on an auto step function and a ramp function. By utilising the reference PRT, you can select to control to the dry well set point using the internal sensor or the external reference PRT.

Self Calibration

Additel believe's using an external reference probe as your standard is the best way to perform your temperature calibration. They recognise this method is not always necessary or convenient and depending on the application, using the internal control sensor would be preferred. Traditionally, the internal control sensor has a wide accuracy which can largely be contributed to its long-term drift. A built-in a self calibration feature allows you to run an automated calibration of the internal control sensor using your external reference. With literally a few selections the calibration will run automatically giving you a fresh, traceable calibration of the control sensor which will improve its accuracy as you will not have to account for its long term drift when used as the reference.

Specifications
Input Specifications
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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


Input Specificaitons for Process Calibrator [PC] Option

Readout Accuracy for
100 ohm PRT
(Probe Accuracy Not included)
±0.009°C at -40°c
±0.010°C at 0°c
±0.012°C at 50°c
±0.017°C at 155°c
±0.019°C at 200°c
±0.026°C at 350°c
±0.030°C at 420°c
±0.042°C at 660°c
Readout Resolution 1 mΩ
Reference Resistance Range 0 Ω to 400Ω
Reference Resistance Accuracy
0 Ω to 50 Ω: 0.002 Ω
50 Ω to 400 Ω: 0.004% RD
Reference Characterisations ITS-90, CVD, IEC-751, Resistance
Reference Measurement Capability 4-wire PRT
Reference Probe Connection 6 pin lemo smart connector
RTD Channels 2

RTD Measurement Accuracy

(excl sensor) Compliance

0 Ω to 400 Ω: 0.002 Ω
25 Ω to 400 Ω: 0.008% RD
400 Ω to 4K Ω 0.004% RD
RTD Measurement Resolution

0 Ω to 400 Ω: 1 mΩ

400 Ω to 4K Ω: 0.01 Ω

RTD Mesurement Resistance Range 0 Ω to 4K Ω
RTD Characterisations PT10, PT25, PT50, PT100, PT200, PT500, PT1000, CU10, CU50, CU100, NI100, NI120
RTD Coonection Four 4 mm input jacks
RTD Channels 2 Channels. Both accept 2, 3 or 4 wire RTD's
TC Channel 2
TC Measurement Channels Mini TC terminals: Accepting S, R, K, B, N, E, J, T, C, D, G, L and U
TC Measurement Accuracty (excl sensor) 0 Ω to 400 Ω: 1 mΩ0 Ω to 400 Ω: 1 m Ω
TC Voltage Accuracy 0.02% RD + 5μV
Internal Voltage Accuracy ±0.35 (ambient from 0°c to 50°c)
Current Range -30 mA to 30 mA
Current Accuracy 0.02% RD + 2 μA
Current Resolution 0.001 mA, Input Impedance: < 10Ω
Voltage Range -30 V to 30V
Voltate Accuracy ±0.02% RD + mV
Voltate Resolution 0.001V; Input Impedance: < 1MΩ
Switch Test Mechanical or Electrical
DC 24V Output 24 V ±1 V, MAX 60 mA
Hart Communication Optional (ADT875PC Model)
Documenation Up to 1,000 tasks which store up to 10 results each containing as found and as left data. Snap shot feature allows for screen captures. Records auto step and ram p functions.
Temperature Coefficient
0°c to 8°c  and 38°c to 50°c
Low Temperature heat source: ±0.005°c/°c
High Temperature heat source: ±0.01°c/°c
Ref Readout: ±1 ppm FS/°c
RTD Readout: ±2 ppm FS/°c
TC Readout: ±5 ppm FS/°c
Current: ±10 ppm FS/°c
Voltage: ±10 ppm FS/°c

 

 

Download ADT875 data sheet

Additel's NEW ADT875 Dry Well Calibrator - wifi and bluetooth enabled ADT875 Dry Well Calibrator showing PRT Testing by Additel ADT875 Dry Well Calibrator showing Transmitter Testing by Additel ADT875 Dry well Calibrator Probe Samples by Additel ADT875 Dry Well Calibrator Probes and accessories by Additel

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