Amprobe AM-270 Industrial-Multimeter - Manual (Page 18)

12
Relative Mode
Relative zero allows the user to offset the meter consecutive measurements
with the displaying reading as the reference value. Practically all displaying
readings can be set as relative reference value including MAX/MIN feature
readings. Press the
button momentarily to activate and to exit relative zero
mode.
Manual or Auto-Ranging
Press the RANGE button momentarily to select manual-ranging, and the meter
will remain in the range it was in, the LCD annunciator
turns off. Press
the button momentarily again to step through the ranges. Press and hold the
button for 1 second or more to resume auto-ranging.
Note: Manual ranging feature is not available in Hz function.