ADEMCO Vista AT Podręcznik Użytkownika Pobierz pdf (Strona 21)

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Maintaining the System (cont’d)

Replacing Batteries

in Wireless Sensors

Wireless sensors

may not have

been used in your

security system

IMPORTANT:

Use only batteries

recommended by

your installer as

replacement.

Each wireless sensor in your system has a 9-volt or 3-volt battery. The system detects a

low battery in wireless sensors, including smoke detectors, the personal emergency

transmitter, and the portable wireless keypad and displays a low battery message*. (A

low battery in a portable wireless keypad is detected as soon as one of its keys is

pressed and is displayed as 00.). Battery-operated smoke detectors with a low battery

also emit a single "chirp" sound approximately once every 20–30 seconds.

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 provide up to 4 or

more 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 or large swings in temperature, may all lead to the reduction of actual

battery life in an installation.

* The low battery message comes on as a warning that battery replacement in

indicated sensor(s) is due within 30 days. In the meantime, a sensor indicating a low

battery condition is still fully operational.

Routine Care

• Treat the components of your security system as you would any other electrical

equipment. Open and close sensor-protected doors or windows gently.

• Keep dust from accumulating on the keypad and all protective sensors, particularly

on motion sensors and smoke detectors.

• The keypad and sensors should be cleaned carefully with a dry soft cloth. Do not

spray water or any other fluid on the units.

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ADEMCO Vista AT Podręcznik Użytkownika Strona 21