Omega HHM17 User Manual page 10

HOLD Button
Press (HOLD) button to toggle in and out of the Data Hold mode, except if you
are already in the MIN MAX Recording mode.
In the Data Hold mode, the "HOLD" annunciator is displayed and the last
reading is held on the display, the beeper emits a tone, and the automatic
power-off feature is disable. Pressing (MIN / MAX) button when you are in the
Data Hold mode causes you to exit Data Hold and enter the MIN MAX
Recording mode.
In the MIN MAX Recording mode, press (HOLD) button to stop the recording
of readings, press (HOLD) again to resume recording.
RANGE Button
Press (RANGE) button to select the Manual Range mode and turn off the
"AUTO" annunciator. (The meter remains in the range it was in when manual
ranging was selected).
In the Manual Range mode. each time you press (RANGE) button, the range
(and the input range annunciator) increments, and a new value is displayed.
To exit the Manual Range mode and return to autoranging, press and hold
down (RANGE) button for 2 seconds. The "AUTO" annunciator turns back on.
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