Electrical Signal Source Specifications: (working environment: 20±5°C,accuracy for one year)
Function
Voltage DC
-10.000 to 75.000 mV
0.02%RD + 4.25
0.02%RD + 0.6 mV
0.02%RD + 1.1
0.02%RD + 0.02Ω
0.005 RD + 1 Hz
1μV
0.1mV
1μA
10mΩ
0.1Hz
0 to 12.0000 V
0 to 22.000 mA
1 to 400.00Ω
0.03%RD + 0.4Ω
100
mΩ
1 to 4000.0Ω
0 to 50000.0 Hz
Current DC
Frequency
Resistance
Resolution AccuracyRange
(2) 2-wire, 3-wire, 4-wire resistance measurement: ± (0 002 RD 0 001%FS)/°C.
Note 2: Input features:
(1) Voltage measurement: input impedance > 1M Ω ,overvoltage of ports is ± 300VDC.
(2) Current measurement: input impedance < 10 ,overvoltage of ports is 1A DC.
(3) Frequency, pulse measurement: Input impedance>500MΩ,square wave, low-level voltage < 0.3V, high-level voltage > 2V,
duty cycle is from 20% to 80%, overvoltage of ports is ±30VDC.
(4) Resistance, RTD measurement: excitation current is about 0 7mA at 400 range, and about 0 3mA at 4000 range,
(5) Thermocouple, RTD measurement temperature: To be decided by the accuracy of mV measurement, resistance
measurement, according to the International Temperature Scale of 1990 (ITS-90).
(6) Cold junction compensation range:-10 to 50°C,accuracy: ± 0 1°C,calibration is available.
Table 5-2
9
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