HP 971A - AC Voltage Specifications; DC Current Specifications

AC Voltage (Average responding, calibrated to display rms)
Range Resolution
Accuracy
Input Impedance (nominal)
40 Hz to 500 Hz 500 Hz to 1 kHz
400 mV 0.1 mV
± (1% + 2)
± (1.5% + 4)
10 MΩ < 50 pF
4 V 1 mV
11 MΩ < 50 pF
40 V 10 mV
10 MΩ < 50 pF
400 V 100 mV
1000 V 1 V Not Specified
Common Mode Rejection Ratio (CMR)1 kΩ imbalance: > 60 dB @ DC to 60 Hz
Response time: 2 seconds maximum
DC Current
Range Resolution Accuracy
Input
Resistance
Maximum Input
400 µA
100 nA
± (0.5% + 2)
< 550 Ω
± 0.5 A (fused)
4000 µA1 µA
± (1% + 2)
40 mA
10 µA
< 8 Ω
400 mA
100 µA
± (1.2% + 2)
10 A 10 mA
< 0.05 Ω ± 15 A (fused)
Specifications
1-18