Lost Zone / Low Battery

[eddytwo]

I am having trouble with losing zones on my CADDX system.

I have an NX-8E control panel with a NX-E receiver module. My system has 16 wireless zones that use SlimLine Sensors NX-452 (ITI 60-499) and NX-458 (ITI 60-741) sensors. The system has been installed and working fine for about 2 years.

Recently, I started to get a lost zone code from one of the sensors. I changed it out for a new sensor and it worked fine for about a month. Aftrer a month I started to get the same lost zone message.

After the failure of the second sensor, I then started to get a low battery signal from another sensor. The battery voltage on this sensor is above the nominal 3.6 volts.

Can anyone help me with the following questions:

1) I have trouble removing a sensor after it is enrolled. I follow the instructions and toggle the zone off in the main module and disable it in the wireless module. I then reactivate the sensor in both modules, but when I attemp to enroll the sensor, I get three beeps indicating the either the sensor is all ready enrolled or the zone does not exist. Am I missing a step?

2) Has anyone else had trouble with the slimline sensors (NX 452) dying after only two years?

 

[Spanky]

You may have the transmitter in a marginal RF location with weak signals to the receiver. Sometimes moving items or redecorating the home can further weaken the signal.

 

[eddytwo]

Spanky Thanks for the input. Unfortunately, the sensors that have failed are the closet most inline withthe recever of any I have. I even tried putting the sensors within inches of the receiver no change.