Amprobe ACD-10-Pro - Manual (Page 11)

10
HOLD
The hold feature freezes the display for later viewing. Press the HOLD button
momentarily to activate or exit this feature.
MAX
The max feature compares and displays the measured maximum value as fast as 30ms
with auto-ranging capability. Press the MAX button for 1 second or more to activate or
exit the max feature in the following functions: DCV, ACV & ACA
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 activate and to exit relative zero mode.
Auto-ranging
Where there is more than one measuring range under a selected meter function, the
LCD annunciator “a” turns on. The meter will automatically switch to the best resolution
range when making measurements. No manual ranging selection is required.
Auto Power Off (APO)
When the meter is on, the Auto Power Off (APO) feature will switch the meter into a sleep
mode automatically to extend battery life after approximately 30 minutes of the last front
panel activity. To wake up the meter from APO, press the buttons 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.
5) MAINTENANCE
WARNING
To avoid electrical shock, disconnect the meter from any circuit, remove the test leads
from the input jacks and turn OFF the meter before opening the case. Do not operate
with open case.