Digital Security Controls Ltd. 09LC151 Manual Do Utilizador

 

11 

The LC-151 detection beam direction is fixed. As a result, it is recommended to face the 

intrusion area with the detector.  

 

 

 

 

 

The calibration of detector sensitivity is performed by a single sensitivity potentiometer and 

a Microwave intensity jumper. Changing the PIR sensitivity and microwave intensity affects 

immunity to environmental noises and allows the detector to operate without nuisance 

alarms in noisier environments. The microwave intensity jumper is marked with "H" (high) 

and "L" (low) settings. The sensitivity potentiometer is marked with "-" to "+". Position "-" is 

the minimum sensitivity and position "+" is the maximum sensitivity. The PIR sensitivity and 

microwave intensity must be adjusted according to environmental conditions as follows: 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sensitivity 
Potentiometer  

MW intensity 
setting