Auto Power Off (Apo); Max/Min Memory; Relative Mode - Extech Instruments MN62 User Manual

Operating Instructions
WARNING: Risk of electrocution. High‐voltage circuits, both AC and DC, are very dangerous and should be
measured with great care.
1. ALWAYS turn the function switch to the OFF position when the meter is not in use.
2. If OL appears in the display during a measurement, the value exceeds the selected range.
Change to a higher range.
3. If the meter does not switch on when the function dial is turned to any position other than
OFF, please check the batteries. Refer to the Battery Installation section of this guide.
AUTO POWER OFF (APO)
The APO feature turns the meter off after 15 minutes of inactivity. To disable APO, hold the
SELECT button while turning the meter on. The meter will emit 5 beeps indicating that APO has
been disabled (the APO clock icon will not be visible on the display). Turn the meter off and then
on again to re‐enable APO (the APO clock icon will be visible on the display when APO is active).
AUTOMATIC and MANUAL Range
The meter defaults to AUTO Range mode when it is switched ON. In this mode the meter
automatically selects the best range for the measurements being made and is generally the best
mode for most measurements. For measurement situations requiring that a range be manually
selected, perform the following:
1. Press the RANGE button. The "AUTO RANGE" display indicator will turn off.
2. Press the RANGE button to step through the available ranges.
3. To exit the Manual Ranging mode and return to Auto ranging, press and hold the RANGE
button for 2 seconds.
MAX/MIN Memory
1. Press the MAX/MIN button to activate the MAX/MIN recording mode. The display icon MAX
will appear. The meter will display and hold the maximum reading and will update only when
a new maximum reading occurs.
2. Press the MAX/MIN button again and the display icon MIN will appear. The meter will
display and hold the minimum reading and will update only when a new minimum reading
occurs.
3. To exit MAX/MIN mode press and hold the MAX/MIN button for 2 seconds.
Relative mode
The relative measurement feature allows the user to make measurements relative to a stored
reference value. A reference voltage, current, etc. can be stored where subsequent
measurements can be made in comparison to that stored reference value. The displayed value is
the difference between the reference value and the measured value.
1. Perform a measurement as described in the operating instructions.
2. Press the REL button to store the reading; the Relative indicator
3. The display will now indicate the difference between the stored and measured value.
4. Press the REL button to exit the relative mode. The Relative indicator will switch OFF.
7
will appear on the display.
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