Multimeter Junkie Reviews the Micronta 22-191 and Viz WD-747
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I have an old Micronta 22-185 I got back in the mid 1980's.
How did you calibrate the potentiometers? With a small flathead?
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Mark, I have the Micronta 22-191 I purchased back in the 80's which I use to check simple voltage for the house, batteries and the car. Now I need to check a thermocouple which has a rating of 30 millivolt. Can you kindly tell how to set my Micronta 22-191 so I can for 30 millivolt. Thanks
bongpay 1 month ago
@bongpay You know, I've never worked with thermocouples. Sounds like you would just put the 22-191 on the 200 millivolt range, and measure across the thermocouple. If there is a voltage source and the thermocouple is open, you'd need a higher voltage range, I suppose.
mdzacharias 1 month ago
at 2:00 what would happen if you had the red line plugged into the connection on the left, "A"
warriorfire8103 5 months ago
@warriorfire8103 It would blow the 1 amp circuit breaker on my little power supply. In another situation, could blow a fuse in the meter or damage the meter. In an industrial setting, the meter could even explode, although unlikely with a Fluke. One must be extremely careful using the AMPS or MILLIAMPS function of a multimeter. The meter needs to be in series with the load, not across it. Always return the test leads to the voltage position after using the amps function.
mdzacharias 5 months ago
Yeah, a small adjustment screwdriver.
mdzacharias 6 months ago
Sorry again about the audio sync problem. It's not present when uploaded.
mdzacharias 1 year ago