User manual
HD400 – V2.0 – 5/08
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.
You, as the end user, are legally bound (Battery ordinance) to return all used
batteries and accumulators; disposal in the household garbage is prohibited!
You can hand over your used batteries / accumulators, gratuitously, at the
collection points for our branches in your community or wherever batteries /
accumulators are sold!
Disposal
Follow the valid legal stipulations in respect of the disposal of the device at the
end of its lifecycle
Storing
When the meter is to be stored, please remove the battery and affix the sensor’s protective
cover. Avoid storing the meter in areas of extreme temperature and humidity.
Copyright © 2008 Extech Instruments Corporation (a FLIR company)
All rights reserved including the right of reproduction in whole or in part in any form.