Savanoriu 65A, Vilnius, Lithuania +370 (5) 210 22 74
  • Measuring and Sourcing loop current, mV, and V
  • Measuring and sourcing simultaneously
  • Loop integrity check capability
  • 24V loop supply with simultaneous current measurement
  • Three year warranty

The 220 is a highly integrated loop calibrator featuring several patented technologies, the calibrator is an ultra-compact, rugged, and best of all, easy to use hand-held device that will source, simulate and measure loop current, mV/V, loop integrity, and also perform switch testing. Its smart phone-like menu and interface makes it simple and easy to use. The 220 is ideal for calibrating, maintaining, and troubleshooting various loop devices in the field.

Measuring and sourcing loop current, mV and V
Measures loop current up to 30mA with 0.1µA resolution
Measures voltage signals up to 30V, and mV signals up to 200 mV
Sources loop current, mV and V
24V loop power supply with simultaneous current measurement
Simultaneous dual reading capability
Pressure switch test

Data statistics and analysis
Display max, min, peak-to-peak, average, and percentage simultaneously Convert data to a real physical value through re-scaling function

Data logging
High-capacity storage with up to twenty thousand records On-line view, index, analyze, auto-curve, and list the data

Various sources and converting mode
Support linear, flow, valve, and 25% stepping source Auto-source of ramping and stepping Gauge span examination

"As Cal" on-site calibration tools
Four on-site calibration tools preset: loop indicator, sensor/transmitter, signal isolator/converter, and limit alarm/switch

Support 2W transmitter connection

Multi lingual interface :
English, Chinese

Easy to use
Smartphone-like menu and interface make the operation simpler and easier
Ultra-compact, size 3.9” x 7.6” x 2.0” (100mm x 192mm x 52mm), and weight 1.6 lb (0.7 kg)
One hand operation

Save and manage up to 100 snapshots

3.5 inch TFT color screen
4, 5, or 6 digits adjustable display

Rugged design for harsh environments.
Passed a 1-meter drop test
Three year warranty for the ADT 220, and one year for the battery pack

Misuse protection and Electrical isolation
Up to 30V voltage on any two sockets and up to 1A current on current sockets will not damage the calibrator. The calibrator will return to normal condition as soon as the voltage or current is removed.
Measuring, sourcing and loop power circuits are electrically isolated each other.

Convenient tools
Calculator, thermocouple converter, HOLD screen lock

Rechargeable battery
Rechargeable Li-ion battery for 15 hours uninterrupted use.
Battery life will be reduced when 24V is applied.
The rechargeable battery is replaceable.

Firmware upgrade
Support firmware upgrade when available

3 years


The 220 loop calibrator is a process tool for measuring, sourcing and simulating mA, mV and V, captures switch values and provides 24 V loop power. It is a high performance solution for calibration, repair and maintenance of various loops devices, loop integrity check, and switch capture.

Buy: Additel 220 - multifunction calibrator, price: ---- euro
If you have any questions about this product feel free to contact with us by
email: This email address is being protected from spambots. You need JavaScript enabled to view it. OR phone: +370 (5) 210 22 74.

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JSC "Tek Know Baltic" Lithuania, Vilnius, Savanoriu ave 65A, LT03149

Tel: +370 (5) 210 22 74, Fax: +370 (5) 210 22 75, Email:

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