Sleep Mode
To preserve battery life, the Meter automatically turns off after 15 minutes of inactivity.
The Meter beeps 3 times one minute before entering Sleep Mode and one long beep
just before entering Sleep Mode.
The Meter can be activated by turning the rotary switch or pressing the button based
on ‘‘
The Effectiveness of Functional Buttons
’’ on page 14
If the Meter is activated by pressing button, the Meter will keep the measurement
value before entering Sleep Mode.
To disable the Sleep Mode feature, press
MAX/MIN, LIGHT
or
Hz
buttons while
turning on the meter.
Model 72-7228: OPERATING MANUAL
35
