Performance Tests and Calibration

7

11The current can be measuring from 2.5 A to 10 A continuous, and the additional of 0.5% to specified accuracy as measure the signal greater than 10 A~20 A for 30 seconds maximum. After measured current for > 10 A, to cool down the meter for 2 times of measuring time you applied before low current measurement.

12For signal frequency greater than 1 kHz, additional 0.1% per kHz to be added to accuracy.

13Ensure that the ambient temperature is stable within ± 1ºC. Make sure that the multimeter is placed in a controlled environment for at least 1 hour. Keep the multimeter away from any ventilation exit. Do not touch the thermocouple test lead after connecting it to the calibrator. Allow the connection to stabilize for at least another 15 minutes before performing the measurement.

Agilent U1251A/U1252A User’s and Service Guide

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Agilent Technologies manual Agilent U1251A/U1252A User’s and Service Guide 127