Comfort Automation/ Security System Forums

I use a CQR Security SC570 G3 magnetic door sensor with my Comfort alarm system. Most of the time it works fine but in very cold weather it generates a zone trouble alert. As it is on the entry door this can stop me setting the alarm. The system still seems to be able to detect when the door is opened and closed even if there is a trouble alert happening.

The sensor is fairly advanced, it has built in configurable resistors for easy installation (you cut a couple of wires which correspond to the correct resistor values) and it has both a magnetic interference reed and a tamper switch to detect people trying to interfere with the system. It\'s this one:

http://www.stsdistribution.com/index.php...ti-g3.html

Unfortunately the complexity is hampering me now as I suspect one of the anti-tamper devices doesn\'t like the cold and is causing the problem. If I just changed the jumper for that zone to NO EOL would it operate simply as an open/closed sensor without it taking into account any of the tamper stuff?

You would have to contact the amnufacturer or read any documentation that came with the sensor to bypass their configuration or just replace it with a simple reed contact!

Quote:Unfortunately the complexity is hampering me now as I suspect one of the anti-tamper devices doesn\'t like the cold and is causing the problem. If I just changed the jumper for that zone to NO EOL would it operate simply as an open/closed sensor without it taking into account any of the tamper stuff?

If you want to set to No EOL on the Comfort (using the jumpers) you would have to ensure that the EOL resistors are not connected on the sensor as well, and just connnect the sensor contact to the zone

It isn\'t possible to disable the resistors in this sensor so I\'ll just buy a simple magnetic contact and set the NO EOL at the alarm. Thanks to both of you for your help.