- The accuracy is ±2% of full scale value on all D.C. ranges, ±5% on all A.C. ranges, and 2% of the linear scale for all ohmmeter ranges. For maximum accuracy, select the range in which the reading is in the upper half of the scale.
- When the magnitude of the voltage or current to be measured is not known, always start with the highest range first. It is good procedure not to switch ranges when the tester is energized.
- If zero resistance can not be adjusted, the batteries should be replaced. To replace batteries,
The tester is now ready to be used on any resistance range by, following the usual procedure.
- Remove tester from the leather case and turn over.
- Open cover marked "BATTERIES".
- Remove batteries and replace with (2) 1½ volt size AAA batteries.
- Replace cover and put tester in leather case.
- Set up tester for R range, short the leads, adjust for zero resistance and keep leads shorted for 1 to 2 minutes.
- The plastic window has been treated at the factory to dissipate static charges. If it becomes necessary to clean the window, wipe the window gently with cotton dipped in a solution of common household liquid detergent diluted with water. Let it dry without rubbing, forced air, or heat. This procedure will dissipate static charge.