Measurement function
D
NTA47227-300A8
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D.2 "Transmission / simulation" function
Maximum rated voltage in common mode: 60 VDC or VAC.
D.2.1
DC Voltage (CALYS 50 / 75)
Range
Resolution
Accuracy / 1 year
Notes
100 mV
1 µV
0.013% R + 3 µV
Output load min = 1 K
Ω
2 V
10 µV
0.013% R + 20 µV
Output load min = 2 K
Ω
20 V
100 µV
0.015% R + 200 µV
Output load min = 4 K
Ω
50 V (1)
1 mV
0,015% R + 2 mV
Output load min = 4 K
Ω
(1) This rating is only available on units CALYS 75
Temperature coefficient: < (7 ppm R + 0.5 ppm Range)/°C from -10°C to +18°C and from +28°C to +50 °C.
Settling time: < 5 ms
D.2.2
DC Current (CALYS 50 / 75)
Range
Resolution
Accuracy / 1 year
Notes
24 mA
1 µA
0.0175% R + 2 µA
4-20 mA
1 µA
0.0175% R + 2 µA
0-20 mA
1 µA
0.0175% R + 2 µA
active mode (+24V ON)
passive mode (+24V OFF)
Temperature coefficient: < (10 ppm R + 0.5 ppm Range)/°C from -10°C to +18°C and from +28°C to +50 °C.
Settling time: < 5 ms
The above specifications are given for the following configurations:-
- CALYS 50 / 75 / 100 active mode (+24 V ON)
Passive mode tester (+24 V OFF).
- CALYS 50 / 75 / 100 passive mode (+24 V OFF)
Active mode tester (+24 V ON).
D.2.3
Resistance (CALYS 50 / 75)
Range
Resolution
Accuracy / 1 year
Notes
40
Ω
1 m
Ω
0.014% R + 3 m
Ω
0.014% R + 10 m
Ω
(1) Iext = 10 mA
(2) Iext = 1 mA
400
Ω
10 m
Ω
0.014% R + 20 m
Ω
0.014% R + 30 m
Ω
(1) Iext from 1 to 10 mA
(2) Iext from 0.1 to 1 mA
4000
Ω
100 m
Ω
0.014% R + 300 m
Ω
Iext from 0.1 to 1 mA
Temperature coefficient: < (5 ppm R + 0.5 ppm Range)/°C from -10°C to +18°C and from +28°C to +50 °C.
Settling time: < 1 ms
Accuracy applies to a 4-wire connection with Y-shaped lugs; add 20mOhms of uncertainty when banana plugs are used.