MD 9225 Clamp Meter Series
Operation
13
Relative Zero
mode
Relative Zero
mode
allows the user to offset the meter consecutive measurements
with the displaying reading as the reference value. The display will now show readings
relative to the stored reference value. That is, display = reading - stored value. Press
the
button momentarily to toggle to the relative zero
mode. The annunciator “
”
turns on. The meter also enters manual ranging mode where available. The annunciator
“
” turns off.
Display Backlight
Press the
SELECT
button for 1 second or more to toggle the display backlight on and
off.
Auto Power Off (APO)
When the meter is on, the Auto Power Off (APO) feature will switch the meter to sleep
mode automatically after approximately 30 minutes of neither slide-switch nor push
button operations to extend battery life. To wake up the meter from APO, press any
push-button momentarily or set the slide-switch to the OFF position and then slide back
on again. Always set the slide-switch to the OFF position manually when the meter is
not in use.
