• Sourcing, simulating and measuring, temperature and electrical signals

• Smartphone-like menu and interface make the operation simpler and easier

• The internal cold junction compensation sensor can be re-calibrated  at ice point by users

• Ultra-compact, 3.9” x 7.6” x 2.0”, and 1.6 lb (0.7 kg)

• ISO 17025-accredited calibration w/data included

 A highly integrated Multifunction Temperature Calibrator featuring several patented technologies, the 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. Automation and documentation capabilities make the 221A a turnkey solution.

The ADT221A multifunction temperature calibrator is a process tool for measuring, sourcing and simulating mA, mV, V, RTDs, thermocouples, ohms, frequency, and pulses, captures switch values and provides 24 V loop power.
 
• Electrical
  Resistance measurement / simulation         
  Voltage measurement / generation          
  Current measurement /generation
  Frequency measurement / generation         
  Pulse counting/generation                         
  24 VDC loop supply
  Switch sensing
 
• Temperature
  RTD measurement /simulation                    
  TC measurement /simulation
• Electrical Specifications

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Measurement Accuracy

Range Resolution Accuracy
Voltage DC ±75.0000 mV 0.1μV 0.01%RD + 3.75 μV
±30.0000 V 0.1 mV 0.01%RD + 1.5 mV
Current DC ± 30.0000 mA 0.1μA 0.01%RD + 1.5 μA
Resistance Two-wire 0 to 400.000 Ω 1mΩ 0.02%RD + 0.02 Ω
Three-wire 0 to 400.000 Ω 1mΩ 0.02%RD + 0.02 Ω
Four-wire 0 to 400.000 Ω 1mΩ 0.01%RD + 0.02 Ω
Two-wire 0 to 4000.00 Ω 10mΩ 0.02%RD + 0.2 Ω
Three-wire 0 to 4000.00 Ω 10mΩ 0.02%RD + 0.2 Ω
Four-wire 0 to 4000.00 Ω 10mΩ 0.01%RD + 0.2 Ω
Frequency 1 to 50000.0 Hz 0.1Hz 0.005%RD + 1 Hz
Pulse 0 to 999999 1 N/A
Limit Switch For the contact with potential, the voltage within the range 3V to 24V.
Source Accuracy
Voltage DC -10.000 to 75.000mV 1μV 0.02%RD + 4.25 μV

0 to 12.0000 V 0.1mV 0.02%RD + 0.6 mV
Current DC 0 to 22.000 mA 1μA 0.02%RD + 1.1 μA
Resistance 1 to 400.00 Ω 10mΩ 0.02%RD + 0.02 Ω

1 to 4000.0 Ω 100mΩ 0.03%RD + 0.4 Ω
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
Thermocouple Measurement and Source Accuracy
Measure and Simulate Standard Temperature Range (oC) Accuracy (oC)
Measure Source
S IEC 584 -50 to 1768 -50 to400 1 1.1
400 to 1000 0.6 0.6
1000 to1768 0.7 0.8
R IEC 584 -50 to 1768 -50 to 200 1.4 1.4
200 to 500 0.6 0.6
500 to 1768 0.6 0.7
B IEC 584 0 to 1820 50 to 450 3.8 3.8
450 to 800 0.9 0.9
800 to 1820 0.6 0.7
K IEC 584 -270 to 1372 -250 to -200 1 1.1
-200 to -100 0.4 0.5
-100 to 600 0.3 0.3
600 to 1372 0.4 0.5
N IEC 584 -270 to 1300 -250 to -200 1.5 1.6
-200 to -100 0.5 0.6
-100 to 1300 0.4 0.5
E IEC 584 -270 to 1000 -250 to -200 0.6 0.7
-200 to -100 0.3 0.3
-100 to 0 0.2 0.2
0 to 700 0.2 0.3
700 to 1000 0.2 0.4
J IEC 584 -270 to 1200 -210 to -100 0.3 0.3
-100 to 1200 0.3 0.4
T IEC 584 -270 to 400 -250 to -200 0.8 0.9
-200 to 0 0.4 0.4
0 to 400 0.2 0.2
C ASTM E988 0 to 2315 0 to 1000 0.5 0.5
1000 to 1800 0.7 0.9
1800 to 2315 1 1.4
D ASTM E988 0 to 2320 0 to 100 0.5 0.5
100 to 1100 0.4 0.5
1100 to 2000 0.6 0.9
2000 to 2320 0.9 1.3
G ASTM E1751 0 to 2315 0 to 200 2.4 2.4
200 to 400 0.5 0.5
400 to 1400 0.4 0.5
1400 to 2315 0.7 1
L DIN43710 -200 to 900 -200 to -100 0.2 0.3
-100 to 400 0.2 0.2
400 to 900 0.2 0.3
U DIN43710 -200 to 600 -200 to 0 0.4 0.4
0 to 600 0.2 0.3
*Accuracy with external cold junction; for internal cold junction add 0.1°C (k=2)
Measurement Accuracy
Measure and Simulate Standard Temperature Range (°C) Accuracy (°C)
Measure (2W/3W) Measure (4W) Source
Pt10(385) IEC 751 -200 to 850 -100 to 200 0.65 0.6 0.65
200 to 600 0.82 0.72 0.82
600 to 850 0.96 0.82 0.96
Pt100(385) IEC 751 -200 to 850 -100 to 200 0.15 0.1 0.15
200 to 600 0.26 0.16 0.26
600 to 850 0.34 0.2 0.34
Pt100(3916) JIS 1604 -200 to 850 -100 to 200 0.15 0.1 0.15
200 to 600 0.26 0.16 0.26
600 to 850 0.33 0.2 0.33
Pt100(3926) Minco Application Aid #18 -200 to 850 -100 to 200 0.15 0.1 0.15
200 to 600 0.26 0.16 0.26
600 to 850 0.33 0.2 0.33
Pt500(385) IEC 751 -200 to 850 -100 to 200 0.2 0.16 0.36
200 to 600 0.32 0.22 0.54
600 to 850 0.4 0.27 0.67
Pt1000(385) IEC 751 -200 to 850 -100 to 200 0.1 0.05 0.25
200 to 600 0.2 0.1 0.42
600 to 850 0.27 0.14 0.54
Cu10(427) Minco Application Aid #18 -100 to 260 -100 to 260 0.61 0.56 0.61
Cu50(428) GOST 6651-94 -50 to 150 -50 to 150 0.17 0.13 0.17
Cu100(428) GOST 6651-94 -50 to 150 -50 to 150 0.12 0.09 0.12
Ni120(672) Edison curve #7 -100 to 260 -100 to 260 0.07 0.05 0.07
Ni100(618) DIN 43760 -100 to 260 -100 to 260 0.08 0.06 0.08
General Specifications
Operating Temperature -10°C to 50°C
Storage Temperature -20°C to 60°C
Humidity <90%, non-condensing
European Compliance CE Mark
Display 3.5 inch TFT color screen
Electrical Connection Ø4mm sockets and flat mini-jack thermocouple socket
RS232 Interface Standard RS232-DB9 socket
Size 3.9" x 7.6" x 2.0" (100mm x 192mm x 52mm)
Weight 1.6 lb (0.7 kg)
Power Supply Polymer Li-ion rechargeable battery,or 10V DC adaptor
Battery Rechargeable Li-ion battery (included)
Battery Life 15 hours uninterrupted use
Battery life will be reduced when 24V is applied
Battery Charge 110V/220V external power adapter (included)

Update Packages:

File name Upload Date Size
Additel 221A Firmware Update Package 3.5 MB

Documents:

File nameUpload DateSize
Additel 221A Multifunction Temperature Calibrator User Manual 2019.3.11 19 MB
Additel Multifunction Process Calibrator Datasheet 2018.3.28 0.2 MB
Additel Multifunction Process Calibrator Selection Guide 2019.5.21 0.2 MB

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