Simplify and streamline your test measurement needs.

Additel ADT210 Loop Calibrator


  • Accuracy to 0.01% of reading
  • Measure, source, or simulate loop current
  • Measure DC volts
  • Simultaneously mA and % span display
  • Switch functionality
  • Selectable ramp and step functions
  • HART 250Ω resistor in series with 24V loop
  • ISO 17025-accredited calibration w/data included


The new Additel 209 and 210 loop calibrator series combine ease of use and functionality, making them the ideal tools to troubleshoot your process loop. The ADT209 has an accuracy of 0.03% of reading whereas the ADT210 holds an accuracy of 0.01% of reading. If you want to source, simulate or simply measure the Additel Loop calibrator series will fit your need. The ADT209 and ADT210 allow for measurement of current, voltage and a switch. You can also simulate or source mA or a process transmitter. With a push of a button, you can switch to zero and span values, auto ramp, and auto step throughout the range. Each loop calibrator has a large, easy to read screen which simultaneously displays the measurement with the % of span.

Additional information

Weight 0.771618 lbs
Dimensions 6.42 × 3.27 × 1.61 in


Electrical Measure Specifications
Range Resolution ADT209 Accuracy ADT210 Accuracy
Voltage DC1 0 to 30 V 1 mV 0.03%RD + 2mV 0.01%RD + 2mV
Current DC2 0 to 24 mA 1 µA 0.03%RD + 2µA 0.01%RD + 2µA
Switch test Input resistance more than 500 MΩ Trigger level: low level <0.3V; high level: >2V
[1] 1MΩ input resistance [2] Loop transmitter current measure: 700Ω maximum


Electrical Source Specifications
Range Resolution ADT209 Accuracy ADT210 Accuracy
Current DC 0 to 24 mA 1 µA 0.03%RD + 2µA 0.01%RD + 2µA
Source mode 700Ω/20 mA maximum
Sink mode External loop voltage nominal 24V, maximum 30V, minimum 12V


General Specifications
Voltage limit 30V between terminals or between terminals and ground
Measurement Functions Auto step, auto ramp, span step
Display VA LCD display. 2.04 x 2.04 in (52 x 52 mm)
Loop power 24V
Over-voltage protection 30V DC (240V AC)
Overload current protection 33 mA DC
Storage temperature -20°C to 70°C
Working Environment -10 to 50°C, 95%RH
Working Altitude <3,000 m
Vibration/shock Random 2G 5 to 500Hz 1 meter drop
Power One 9V alkaline battery (ANSI/NEDA 1604A or IEC) DC9V optional adapter available
Battery life (typical) Output mode: 18 hours (12 mA/500Ω) Measure mode: 50 hours
Size (LxWxH) 163 x 83 x 41 mm
Weight 350 g
Calibration Certification ISO17025 Accredited certificate of calibration with data
Compliance Certification CE
Warranty 3 years

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