Update:
Relays arrived.? I replaced the failed relay and also put in a new display.
The instrument is back to proper operation with a nice bright display.
Thanks for the likely cause!
Peter
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On 3/9/2025 4:17 PM, Peter Gottlieb wrote:
I saw three and ordered two to have a spare.? Since I have three of this meter and now know about how they can fail I can just replace them as needed.
On 3/9/2025 3:39 PM, Razvan Popescu via groups.io wrote:
Hi Peter,
If I am not mistaken there are 2 Omron relays on the board. If one
failed maybe the other one will fail soon so if you make an order and
have the unit open it is better to replace both.
Regards,
Razvan
On 09/03/2025 20:17, Peter Gottlieb via groups.io wrote:
I have tracked this down to K104 and confirmed by bench test the relay
has a bad side and won't make continuity to the DC high range
attenuator.? With the relay removed I can jumper pins 9 to 13 and get a
voltage reading on the higher range which confirms the rest of the meter
works.
This is an Omron G6AK-274P-STLT-US-5VDC which is commonly available.? I
will get one on order from Mouser.
Peter
