Door Open Too long Alarm

Application:

If the door is force opened, the sensor (N.C.) will break contact. The Alarm relay will activate and +12V will appear on silent terminal.

If the door is opened by Card Access or key switch, the Alarm Relay will only activated and +12V will appear on silent terminal after the elapse time out

The elapse time can be adjust by a preset from 1 sec to approx. 9 minute.

Once the door in closed, the Alarm Relay will turn off.

Operation:

Power Up Led blink fast 3 time and blink slow 1 time Repeat this for 3 times.

1 : Jumper is open.

1.1   Normal condition

12V is presented at the EM lock Terminal and door is closed. Alarm Relay not activated Led will keep on blinking Fast.

 

1.2   Door Force Open

If the door is force open, +12V present at the EM lock. the Alarm Relay activated, +12V will appear on silent terminal.

and Led will keep on blinking fast.

 

1.3   Door Opened by card Access or key switch

If the Door is opened by card access, 0V present at the EM lock.

Count down started. Until the elapse time out, the Alarm relay will activated +12V will appear on silent terminal.

2 : Jumper is closed.

2.1 Normal condition

0V is presented at the EM lock and door is closed. Led will keep on blinking Fast.

2.2 Door Force Open

If the door is force open, 0V present at the EM lock. the Alarm Relay activated, +12V will appear on silent terminal.

and Led will keep on blinking fast.

2.3   Door Opened by card Access or key switch

If the Door is opened by card access, 12V present at the EM lock.

Count down started. Until the elapse time out, the Alarm relay will activated +12V will appear on silent terminal.

Specification :

Dimension : approx. 65mm x 50mm

Elapse Time when Door left Open by Card Access : approx. 1sec 9min ( Alarm Relay activated )

Power Input : +12V DC