FLIR CM55_CM57 USER MANUAL Document Identifier: CM55_CM57-en-US_AD
11
5.
Operation
Note: Before operating the device, please read and understand all Warning and Caution
statements and follow all instructions and notes.
5.1 Powering the Meter
The meter is powered by two (2) AAA 1.5V batteries (located in the compartment on the back of
the meter). Press and hold the Power button
for > 2 seconds to switch the device ON or OFF.
5.1.1 Auto Power OFF (APO)
The meter switches OFF automatically after an approximately 10-minute period of inactivity.
Several seconds before the meter automatically switches OFF the meter beeps several times to
alert the user.
To disable the Auto Power OFF feature:
With the meter power OFF, press and hold the Power and HOLD buttons for >2 seconds.
The display shows ‘AoFF’ while it powers up.
The APO feature is now disabled and the meter will not shut off automatically.
Note that the next time the meter is powered up, the APO function will be re-enabled
and the user must repeat the APO disable instructions to disable this function.
When APO is active, the APO icon appears on the display
.
APO active is the default condition.
5.1.2 Low Battery Indication
When the displayed battery icon
appears empty and flashing, or if the meter does not
power up, the batteries must be replaced immediately. Refer to the battery replacement
procedure in the maintenance section. Note that measurement accuracy is maintained even
while low battery alerts are displayed.
5.2 Work Lights
With the unit powered up, press the Work Light button
to switch the high power Work Lights
ON or OFF. Note that excessive use of the Work Lights will shorten battery life.
5.3 Data Hold
Press the HOLD button with the meter ON to freeze the displayed reading. The HOLD icon (H) will
appear along with the held reading. Press the HOLD button again to release the HOLD feature.
The HOLD icon will switch OFF and the meter will revert to displaying real time readings.