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The components of your security system are designed to be as maintenance-free as possible. To make
sure that your system is in working condition, do the following:
1. Test your system weekly.
2. Test your system after any alarm occurs (see the TESTING THE SYSTEM section).
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Each wireless sensor in your system has a 9-volt or 3-volt battery. The system detects low battery
conditions in wireless sensors, including smoke detectors, personal emergency transmitter, and the
portable wireless keypad, and displays a “LOW BAT” message on the master keypad, which also beeps.
A low battery in a wireless keypad is detected as soon as one of its keys is pressed, and the master
keypad (e.g. Ademco 5827) will display “00”. In addition, a wireless smoke detector with a low battery
also emits a "chirp" sound approximately once every 20–30 seconds, identifying itself as the smoke
detector with the weak battery.
NOTE:
A low battery message means that battery replacement in the indicated sensor(s) is due within 30 days.
In the meantime, a sensor with a low battery is still operational.
To silence Low Battery Warning Tones at the Keypad:
Press the key
.
The low battery message display will remain on as a reminder. When you replace the weak battery
with a fresh one, the sensor will send a "good battery" signal to the control when the sensor is activated
(opening/closing of door, window, etc.).
To clear the “LOW BAT” message enter:
When replacing batteries, use only those recommended by your installer.
Alkaline batteries provide a minimum of 1 year of operation, and in most units and applications, provide 2–4 years of
service. 3-volt lithium batteries may provide from 4-7 years of operation. Actual battery life will depend on the
environment in which the sensor is used, the number of signals that the transmitter in the sensor has had to send, and
the specific type of sensor. Factors such as humidity, high or low temperatures, and large swings in temperature may all
lead to the reduction of actual battery life in an installation.
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In the event of an AC power loss, the LYNXR/LYNXR24 is powered by a rechargeable, nickel-metal
hydride battery pack. The battery pack should be replaced when a “LOW BAT” message with no zone
number is displayed.
NOTE: The battery pack (P/N LYNXRCHKIT-SC or LYNXRCHKIT-HC) should be changed every four
years and must be replaced by a qualified service technician.
Following battery pack replacement, rechargeable batteries may take up to 48 hours to charge. The
“LOW BAT” message may be displayed after one minute, however it should clear within 4 hours or by
entering Test Mode.