Ac + Dc Voltage; Dc Current, Ac Current - HP 974A User Manual

Specifications
AC + DC Voltage (rms responding, computed from acV, dcV)
Range Resolution
5 V 1 mV
50 V 10 mV
500 V 100 mV
750 V 1 V
Measurement range:
500 mV to 500 V ranges
750 V range
Response time: < 2 seconds for AC, 5 seconds for AC+DC on fixed range
Crest factor: <3
Common Mode Rejection Ratio (CMR) 1 k Ω imbalance: > 60 dB @ DC to 60 Hz
DC Current, AC Current (40 Hz to 1 kHz), 5% to 100% of range
Range
500 µA
50 mA
500 mA
10 A
1-18
DC, 20 Hz to
10 kHz
± (1% + 30)
± (1% + 30)
DC, 20 Hz to 1 kHz
20 Hz to 30 kHz
30 kHz to 100 kHz
DC Current
Resolution
Accuracy
10 nA
1 µA ± (0.3% + 2)
10 µA
± (0.7% + 2)
1 mA
Accuracy
DC, 10 kHz to DC, 30 kHz to
30 kHz 50 kHZ
± (1.2% + 40) ± (2.5% + 70)
Not Specified
5% to 100% of range
10% to 100% of range
75 V to 750 V
AC Current Input
Accuracy Resistance
< 1050 Ω
< 12 Ω
± (1% + 20)
< 2.5 Ω
< 0.05 Ω
DC, 50 kHz to
100 kHz
± (3.5% + 300)
Maximum
Input
0.5 A (fused)
15 A (fused)