METREL MD 9070 Manuel D'utilisation page 19

MD 9070 Insulation/Continuity Digital Multimeter Operation
Backlighted display
Press SELECT button for a second or more to toggle the LCD backlight. The backlight
will also be turned off automatically after approximate 37 seconds to extend battery life.
Auto- or Manual-ranging (Volts, mA & Ω functions only)
Press the RANGE button momentarily to select manual-ranging, and the meter will
remain in the range it was in, the LCD turns off. Press the button momentarily
again to select an adjacent range. Press and hold the button for 1 second or more to
resume auto-ranging.
Hold
The hold feature freezes the display for later view. Press the HOLD button momentarily
to toggle the hold feature. This feature does not apply to Earth Continuity Test &
Insulation Resistance functions.
MAX/MIN Recording mode
Press REC button momentarily to activate MAX/MIN recording mode. The LCD "R" &
"MAX MIN" turn on. The meter beeps when a new MAX (maximum) or MIN (minimum)
reading is updated. Press the button momentarily to read the Real-time, MAX and MIN
readings in sequence. Press the button for 1 second or more to exit MAX/MIN recording
mode. When activated, Auto-Power-Off is disabled automatically. This feature does not
apply to Earth Continuity Test & Insulation Resistance functions.
Beep-Jack™ Input Warning
The meter beeps as well as displays "InEr" to warn the user against possible damage to
the meter due to improper connections to the "mA" input jack when other functions,
especially voltage function, is selected.
Set Beeper Off
Press the RANGE button while turning the meter on to temporarily disable the Beeper
feature. Turn the rotary switch OFF and then back on to resume.
Auto-Power-off (APO)
The Auto-Power-off (APO) mode turns the meter off automatically to extend battery life
after approximately 20 minutes of no rotary switch or push button operations. To wake
up the meter from APO, press the SELECT, or PI/DAR button momentarily or turn
the rotary switch OFF and then back on. Always turn the rotary switch to the OFF
position when the meter is not in use.
Disabling Auto-Power-off
Press the SELECT button while turning the meter on to temporarily disable the Auto-
Power-Off feature. Turn the rotary switch OFF and then back on to resume.
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