Re: 3456A Voltmeter
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Normal behaviour. They have VERY high input impedance on the low voltage ranges, so any stray charge can cause a reading.
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Dave -----Original Message-----
From: hp_agilent_equipment@... [mailto:hp_agilent_equipment@...] On Behalf Of Michael Hong Sent: 20 December 2012 23:23 To: hp_agilent_equipment@... Subject: [hp_agilent_equipment] 3456A Voltmeter Hi everyone, I just bought two 3456As from the same dealer off eBay. Both of them have the same problem. When they are turned on, the number drift from low mV number and goes up to -8.nnnnn for one meter and the other meter to -6.nnnn. And then float around there. When I short the leads at Ohm or Volt setting, they show the near zero and when disconnected, go to their the number again. I expect they stay at very low mV or zero without any input. What seems be the problem? Thank you. [Non-text portions of this message have been removed] ------------------------------------ Yahoo! Groups Links |
David C. Partridge