Keysight Technologies DAQ970A Service Manual page 75

AC current gain verification test
Input
Current Frequency
1 kHz
1 A
5 kHz
10 Hz
100 mA 1 kHz
5 kHz
100 μA 1 kHz
1 mA 1 kHz
1 kHz
10 mA
5 kHz
1 kHz
1 mA
5 kHz
1 kHz
100 μA
5 kHz
[a] Q: Quick performance verification test points.
[b] For Channel 321, select bandwidth AC filter.
Keysight DAQ970A/DAQ973A Service Guide
Channel 321
[b]
Range
AC filter
1 A >200 Hz
>3 Hz
100 mA
>200 Hz
10 mA >200 Hz
1 mA >200 Hz
100 μA >200 Hz
Quick
[a]
check
24 hours
±1.1 mA
±1.1 mA
±110 μA
±110 μA
Q ±110 μA
±4.07 μA
±4.7 μA
±11 μA
±11 μA
Q ±1.1 μA
±1.1 μA
±110 nA
±110 nA
Performance Verification
Error from nominal
90 days 1 year
±1.3 mA ±1.4 mA
±1.3 mA ±1.4 mA
±130 μA ±140 μA
±130 μA ±140 μA
±130 μA ±140 μA
±4.1 μA ±4.1 μA
±4.9 μA ±5 μA
±13 μA ±14 μA
±13 μA ±14 μA
±1.3 μA ±1.4 μA
±1.3 μA ±1.4 μA
±130 nA ±140 nA
±130 nA ±140 nA
3
2 years
±1.4 mA
±1.4 mA
±140 μA
±140 μA
±140 μA
±4.1 μA
±5 μA
±14 μA
±14 μA
±1.4 μA
±1.4 μA
±140 nA
±140 nA
75