I recently purchased a DT-830B digital multimeter, something like this The DT830B pocket-size digital multimeter, from ebay. The item arrived early and the packaging seems intact. However, when I powered it up using a newly bought 9V battery, it doesn't seem to work. Switching the dial will only move the decimal point on the LCD, and display the "HV" warning if the dial is in high voltage range. Nothing else seems to work, I can't measure voltage or resistance, nothing else is shown on the display. Even worse, the LCD will fade away and become blank after 5 seconds if the dial is not moved.
At first I suspected the battery, but replacing the battery does not help. I use my analog multimeter to check the fuse onboard and it seems OK.
Anything else I could do to fix the multimeter?
Looking forward to any advice. Thanks.
At first I suspected the battery, but replacing the battery does not help. I use my analog multimeter to check the fuse onboard and it seems OK.
Anything else I could do to fix the multimeter?
Looking forward to any advice. Thanks.