AC + DC Voltage HP 973A (True rms, computed from acV, dcV)
Range
Resolution
Accuracy
Input
Impedance
(nominal)
DC, 40 Hz to
1 kHz
DC, 1 kHz to
5 kHz
DC, 5 kHz to
20 kHZ
4 V
1 mV
±
(1% + 4)
±
(1.5% + 6)
±
(3% + 18)
11 M
Ω
< 50 pF
40 V
10 mV
10 M
Ω
< 50 pF
400 V
100 mV
1000 V
1 V
±
(1% + 6)
DC, to 500 Hz
Not Specified
Measurement range:
DC, 40 Hz to 1 kHz
4 V to 400 V range
5% to 100% of range
1000 V range
200 V to 1000 V
DC, 1 kHz to 20 kHz
4 V to 400 V range
10% to 100% of range
Response time: < 5 seconds on fixed range
Crest factor: <3
Common Mode Rejection Ratio (1 k
Ω
imbalance): > 60 dB @ DC to 60 Hz
DC Current
Range
Resolution
Accuracy
Input Resistance
Maximum Input
400
µ
A
100 nA
±
(0.5% + 2)
< 550
Ω
±
0.5 A (fused)
4000
µ
A
1
µ
A
±
(0.8% + 2)
40 mA
10
µ
A
< 8
Ω
400 mA
100
µ
A
±
(1.0% + 2)
10 A
10 mA
< 0.05
Ω
±
15 A (fused)
Specifications
1 - 19
