Question about Gardner Bender GB Electrical GMT-19A 19 Range Analog Multitester
You would use the 500ma range to read anything that is under 500 ma. If the reading comes up below 5o ma, then you can disconnect and change the range to 50 ma. I say disconnect before you change the range because it can damage the instrument otherwise. ie: do not use the switch to change the range while it is already connected in circuit and measuring in progress.
Remember that to measure current, you have to have the meter in series with the load and the supply.
Posted on Oct 09, 2017
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Posted on Jan 02, 2017
SOURCE: I have a GB INstruments
The manual says that when reading measurements taken with the meter on the 500mA range, the 250 scale is used, and the values indicated by the pointer are to be doubled in this situation.
You can find the manual for the GMT-19A here. Section 5 (page 9 & 10) details use of both the Amp and mA ranges and scales of the meter.
I hope this was very helpful and good luck!
Posted on Nov 03, 2010
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