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CLEARANCE AND MAINTENANCE FOR ANTI-DUST KIT
4.
4.1 Overview
Every product is already installed with anti-dusk kit from factory. The product will automatically
detect this kit and activate internal thermal sensor to adjust internal temperature. This kit also keeps
dusk from your product and increases product reliability in harsh environment.
4.2 Clearance and Maintenance
Step 1: Please loosen the screw in counterclockwise direction on the top of the product.
Step 2 : Then , dustproof case can be removed and take out air filter foam as shown in below chart .
Step 3 : Clean air filter foam and dustproof case . After clearance , re-assemble the dust-kit back to the
product . NOTICE : The anti-dust kit should be cleaned from dust every one month
TROUBLE SHOOTING
5.
Problem
Unit shuts down
automatically during
startup process.
LCD/LED/Buzzer
LCD/LEDs and buzzer will
be active for 3
seconds and then
EN
Explanation / Possible cause
The battery voltage is too low
(<1.91V/Cell)
What to do
1. Re-charge battery.
2. Replace battery.
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