Auto Power Off - Amprobe 38XR-A Mode D'emploi

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3. Release the HOLD button. The beeper feature will remain
disabled until the meter is turned off and then on.
Note: To disable both the beeper and Auto Power Off press
and hold the REL button while turning on the DMM.

Auto Power Off

Auto Power Off is a battery saving feature that puts the
meter into a sleep mode if the Function/Range Switch has
not changed position in the last 30 minutes. To wake the
meter turn the Function/Range Switch to another position.
The Auto Power Off feature can be disabled to keep the
meter from going to sleep. This feature is useful when using
the MIN MAX AVG mode for extended periods. To disable
the Auto Power Off feature use the following procedure:
1. Set the Function Switch to OFF.
2. Press and hold the MIN MAX AVG button while turning
the Function Switch from OFF to the desired function.
The SLEEP OFF message shows on the display.
3. Release the MIN MAX AVG button. The Auto Power
Off feature will remain disabled until the meter is
turned off and then on.
Note: To disable both Auto Power Off and the beeper press
and hold the REL button while turning on the DMM.
REL (Relative) Measurements
Note: The REL feature does not work with the dBm or the
dutycycle function.
The Relative mode displays the difference between the
actual reading and a reference value. It may be used with
any function or range. To make a relative measurement
first establish a reference value by measuring a value
and then pressing the REL button after the reading has
stabilized. This stores the measured value as the reference
and sets the display to zero. The meter subtracts the
reference value from subsequent measurements and
displays this difference as the relative value. Measurement
values greater than the reference value will be positive
and values less than the reference value will be negative.
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