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