Additel 221A Multifunction Temperature Calibrator User Manual - Manual (Page 25)

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6. Summary
The ADT22XA series calibrators are high performance instruments, designed for the calibration of heat engineering
secondary instruments, pressure gauges and DCS systems. The hand‐held calibrator is highly stable and reliable,
it’squite suitable for calibration, maintenance and troubleshooting.
Features:
1. Measure mA, millivolts, volts, ohms, frequency, pulses, limit switch, RTDs and thermocouples.
2. Source/simulate mA, millivolts, volts, ohms, frequency, pulses, RTDs and thermocouples.
3. Measuring and sourcing can be done at the same time.
4. A calibrated PRT sensor with flexible leads is installed in the equivalent block for thermocouple cold junction
compensation (Patented).
5. 24V DC loop power supply which is isolated from measuring and sourcing.
6. Supportssquare root transmitter.
7. Captures and save a screen snapshot.
8. Creates and runs AsCal (as‐found/as‐left) tasks, record and document results.
9. High resolution, 3.5 inch TFT color screen, is easier to read in dark environments.
10. HART communication capability.
11. Pulse frequency output for calibration of flow totalizer.
12. Built‐in utilities: Calculator, Simulate Transmitter, Custom RTDs Library, Pressure Leak Test and Conversion tools etc.
13. Easy to use: Smartphone‐like menu and interface make the operation simpler and easier.