In this video I am switching my HP 3478A from 120V 60Hz AC to 230V 50Hz AC using the internal selection. I am also comparing some voltage and resistance measurements to my Keithley 175 and I realize the HP needs calibration if I am to trust it’s measurements. While I was inside the meter I also checked the voltage of the internal battery used to store calibration data.
Tag: HP
VoltLog #9 – InTheMail HP 3478A, Probe Master 8028S, Anker Astro E3, Seagate Expansion 2TB
In this InTheMail segment I receive the HP 3478A 5.5 digit multimeter, a Probe Master 8028s test lead set, the Anker Astro E3 10000mAh portable battery charger and the Seagate Expansion 2TB external storage hard drive.
VoltLog #5 – HP Agilent E3611A Power Supply Teardown and Calibration
I got this HP Agilent E3611A Power Supply from ebay. It was marked as not working and I was planing a repair video on it. Unfortunately the unit turned out to be fully functional so I only did a teardown and calibration.