Hi there!
I just received a Fluke 8840A.
The voltage readings compare pretty closely with an in-cal Keithley DMM6500, so I would say its accuracy is very good, considering the last cal was 13 years ago (thank you LTFLU-1 reference)
BUT, something that surprises me, is that with no input connected, the voltage does not read zero. It starts at around 70mV when I start the meter. I can bring it to zero by connecting a resistor across the terminals. I left the meter for a few minutes on the mV reference and it's been climbing steadily by a few mV, from -5mV to around -9mV now.
I think it means there is probably some leakage somewhere internally. Any idea where to look at? I have noticed several pictures of 8840A on eBay with no input connected and also showing a few tens of mV, so I am assuming this is a common issue and hoping that someone here knows about this...
PS: The rear frame has been broken during shipping and it triggers my OCD - if someone has a parts 8840A and would be willing to sell me a rear frame for a reasonable price, I may be interested
PS2: I was able to remove most of the scratches on the smoked screen cover using Displex display polish, very impressive stuff (keep it away from the silkscreen)
Thanks
