HD400-EN V2.4 07/13
8
Maintenance
Cleaning
The meter and its sensor can be cleaned with a damp cloth. A mild detergent may be used but
avoid solvents, abrasives, and harsh chemicals.
Battery Installation / Replacement
The battery compartment is located on the back of the meter. The compartment is easily accessed
by pressing and sliding the rear battery compartment cover off of the meter in the direction of the
molded arrow. Replace or install the 9V battery and close the battery compartment by sliding the
compartment cover back onto the meter.
Storing
When the meter is to be stored, please remove the battery a
nd affix the sensor’s protective cover.
Avoid storing the meter in areas of extreme temperature and humidity.
