Performance Tests and Calibration 6
U1253B User’s and Service Guide 149
[1]
The additional error to be added for frequency > 20 kHz and signal input < 10% of range: 300 counts of LSD per kHz.
[2]
An accuracy of 0.05% + 10 can be achieved by using the relative function to zero the thermal effect (short test leads) before
measuring the signal.
18 Press to select AC mA measurement
[1]
50 mA 50 mA, 1 kHz
50 mA, 20 kHz
± 0.37 mA
± 0.395 mA
440 mA 400 mA, 45 Hz
400 mA, 1 kHz
± 4.2 mA
± 3 mA
Caution: Connect calibrator outputs to handheld multimeters A and COM terminal before applying 5 A and 10 A
19 Press to select DC A measurement 5 A 5 A ± 16 mA
10 A
[10]
10 A ± 35 mA
20 Press to select AC A measurement 5 A 5 A, 1 kHz ± 37 mA
3 A 3 A, 5 kHz ± 96 mA
10 A
[11]
10 A, 1 kHz ± 90 mA
Square wave
output
Measure with
53131A
21 Turn the rotary switch to the position 120 Hz @ 50% ± 26 mHz
4800 Hz @ 50% ± 260 mHz
duty cycle 100 Hz @ 50% ± 0.398%
[12]
100 Hz @ 25%
± 0.398%
[12]
100 Hz @ 75%
± 0.398%
[12]
Measure with
34410A
amplitude 4800 Hz @
99.609%
± 0.2 V
Table 6- 2 Performance verification tests
Step Test function Range
Reference
signals/values
Error limits
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