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Re: HP6632A power supply: 2mV output even when output is disabled!


tmillermdems
 

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Reading the specs says (I think) that the 0 volt setting should be within +/- 10 mV of 0. In any event, all the adjustments are done with the GPIB and a computer. The calibration program is included in the service manual and is in Basic.

Regards,

Tom


On 2/25/2019 4:16 PM, Emanuele Girlando via Groups.Io wrote:
Thank you for your suggestions..
I am using normal DMM leads well twisted together.
The negative output is isolated from earth (the PS is floating).
The PS and the DMM are connected to the same earth with 0.67ohms between them.

I have a service manual (got from the Keysight site). Way too complex for me to understand it...

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