Simpson Model 360 Digital Multimeter
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The outside of the meter is in good shape thanks to the carry case it was in. The 360 has a different analog "meter" than the 360-2. The circuitry is also different between the two.
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After inspecting the circuity inside I removed the 45 year old NiCad cells and checked the fuses to make sure they are the correct values. One wasn't.
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I tried to power the meter up on batteries but it didn't work. Before attempting to power it on AC I checked the power supply and replaced the old electrolytics. Powering it up on AC all digits light and are all zeros, but the meter is still dead on batteries.
A little troubleshooting found the relay contacts inline with the batteries were open, but I was able to get them working again and then battery power was good.
A little troubleshooting found the relay contacts inline with the batteries were open, but I was able to get them working again and then battery power was good.
Next I'll need to troubleshoot why the readout is all zeros.
Page created 6/14/2022
Last updated 6/14/2022
Last updated 6/14/2022
