Major tech MTD73A Instruction Manual - Page 17

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REL Mode

This sets the relative point to measure against the next reading.

Press the REL key to enter the Relative Measurement Mode, this

function resets the display to zero.

Automatic Power OFF

In order to conserve battery life, the meter will automatically

turn off after approximately 15 minutes. To turn the meter on

again, turn the rotary function switch to the OFF position and

then to the desired function range.

To cancel the auto power off function, press SELECT button and

turn on the power with the rotary switch at the same time.

Maintenance

WARNING: To avoid electrical shock, disconnect the meter

from any circuit, remove the test leads from the input

terminals, and turn OFF the meter before opening the case.

Do not operate the meter with an open case.

Cleaning and Storage

Periodically wipe the case with a damp cloth and mild detergent;

do not use abrasives or solvents. If the meter is not to be used

for 60 days or more, remove the battery and store it separately.