High Current Verification

This procedure applies to the 34461A, 34465A, and 34470A only (not applicable to the 34460A).

This procedure verifies AC and DC current on the 10 A terminals.

  1. Make sure you have read Test Considerations.
  2. Connect the calibrator to the front 10 A input terminals and select the Front input terminals with the Front/Rear switch.
  3. Select each function in the order shown below. Provide the indicated input current and frequency, and for ACI, use the 200 Hz input filter. Compare measurement results to the test limits shown below. (Be certain to allow for appropriate source settling.)
Values for the 34461A, 34465A, and 34470A DMMs
Input Error from Nominal
Function Current[1] Frequency Range Quick
Check		 24 hours 90 days 1 year 2 years
DCI 5 A N/A 10 A ± 3.5 mA ± 7 mA ± 8.5 mA
DCI 10 A N/A 10 A Q

± 16 mA

 ± 23 mA ± 26 mA
ACI 10 A 5 kHz 10 A

± 24 mA (34465A/70A)

± 29 mA (34461A)

 ± 29 mA

[1] If you are NOT using the Fluke 5725 for calibration, reduce the current to 2 A.