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 Home >>Test equipment >>Process Calibrators>>ADT 221A
ADT 221A   A highly integrated Multifunction Temperature Calibrator featuring several patented technologies, the ADT 221A is an ultra-compact, rugged, and easy to use hand-held device for sourcing, simulating and measuring temperature, and electrical signals. Its smartphone-like menu and interface make the operation simpler and easier. The 221A is ideal for calibrating, maintaining, and troubleshooting process instrumentations.
  •       SUMMARY        
  •      SPECIFICATIONS    
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  •          PRICE               
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• Sourcing, simulating and measuring, temperature and electrical signals,
• Simulates and measures 13 thermocouples and 11 RTDs to calibrate transmitters,
• Pulse frequency output for the calibration of flow totalizer,
• 24V loop supply with simultaneous current measurement,
• The internal cold junction compensation sensor can be re-calibrated  at ice point by users,
• At the same time two readings, 3.5 inch TFT color screen,
• Smartphone-like menu and interface make the operation simpler and easier,
• Build-in unit conversion tool software,
• 3 years warranty,
• NIST Traceable Calibration with data.
 
 
 
 
 
  Operation temperature -10°C to 50°C
  Humidity <90%
  Certification CE
  Display 3.5 inch TFT color screen
  Thermocouple TC measurement/simulation IEC 584, ASTM E988, ASTM E1751, DIN43710 standarts
  Resistance Thermometer RTD measurement/simulation IEC751, GOST6651-94, Edison curve #7, DIN 43760 standarts
  CJ Compensation PRT element
  Snapshot Save and manage up to 100 snapshots
  Electrical connection (Ø) 4mm sockets and flat mini-jack thermocouple socket
  Communication Standard RS232-DB9 socket
  Dimensions and Weight 100mm x 192mm x 52mm & 700 gr.
  Supply Polymer Li-ion rechargeable battery,or 10V DC adaptor
  Adapter 110V/220V harici güç eaaptörü ile (included)
  Warranty 3 years
  Electrical properties
  Measurement  Range Resolution Accuracy 
Voltage DC ±75.0000 mV
±30.0000 V
0.1 µV
0.1 mV
0.01%RD + 3.75 µV 
0.01%RD + 1.5 mV
Current DC ±30.0000 mA 0.1 µA 0.01%RD + 1.5 µA
Resistance two-wires 0 to 400.000 Ohm 1 mohm 0.02%RD+0.02 Ohm
three-wires 0 to 400.000 Ohm 1 mohm 0.02%RD+0.02 Ohm
four-wires 0 to 400.000 Ohm 1 mohm 0.01%RD+0.02 Ohm
two-wires 0 to 400.000 Ohm 10 mohm 0.02%RD+0.2 Ohm
three-wires 0 to 400.000 Ohm 10 mohm 0.02%RD+0.2 Ohm
four-wires 0 to 400.000 Ohm 10 mohm 0.01%RD+0.2 Ohm
Frequency 1 to 50000.0 Hz 0.1Hz 0.005%RD+1 Hz
Pulse 0 to 999999 1 N/A
Limit Switch If the switch has detective voltage, its range is +3V to +24V
  Source
Voltage DC -10.000 to 75.000mV
0 to 12.0000 V
1 µV
0.1 mV
0.02%RD+4.25 µV 
0.02%RD+0.6 mV
Current DC 0 to 22.000 mA 1 µA 0.02%RD+1.1 µA
Resistance 1 to 400.00 Ohm
1 to 4000.0 Ohm
10 mohm
100 mohm
0.02%RD+0.02 Ohm
0.03%RD+0.4 Ohm
Frequency 0 to 50000.0 Hz 0.1Hz 0.005%RD+1 Hz
Pulse 0 to 999999 1 N/A
DC24V N/A N/A 0.5V

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