DCM330 Performance Verification
10
Handheld and Benchtop Instruments Basic Service
Table 8: DC Current Checks
DC Current Tolerance Low Limit Test Result High Limit
0.0 A ±1.0 A –1.0 01.0
10.0 A ±1.2 A 08.8 11.2
100.0 A ±4.9 A 95.1 104.9
300.0 A ±9.7 A 290.3 309.7
400 A ±12 A 388 412
600 A ±22 A 578 622
1000 A ±34 A 966 1034
–10.0 A ±1.2 A –11.2 –8.8
–100.0 A ±4.9 A –104.9 –95.1
–300.0 A ±9.7 A –309.7 –290.3
–400 A ±12 A –412 –388
–600 A ±22 A –622 –578
–1000 A ±34 A –1034 –966
Table 9: Frequency Checks
AC Current Frequency Tolerance Low Limit Test Result High Limit
20 A 20 Hz ±3 Hz 0.017 kHz 0.023 kHz
20 A 50 Hz ±3 Hz 0.047 kHz 0.053 kHz
20 A 60 Hz ±3 Hz 0.057 kHz 0.063 kHz
20 A 100 Hz ±4 Hz 0.096 kHz 0.104 kHz
20 A 1 kHz ±8 Hz 0.992 kHz 1.008 kHz
20 A 3 kHz ±18 Hz 2.982 kHz 3.018 kHz
20 A 5 kHz ±60 Hz 4.94 kHz 5.06 kHz
20 A 7 kHz ±70 Hz 6.93 kHz 7.07 kHz
20 A 10 kHz ±80 Hz 9.92 kHz 10.08 kHz
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