Duevi DIRFE, Инструкция по эксплуатации

Страница: 3 / 20

3
2. PRECAUTIONS
This sensor has been designed to guarantee a very high immunity to light interference;
however, a very bright light can produce a range decrease.
It is recommended to pay attention during the installation and avoid, as much as possible,
that direct or reflected solar light or very intense lights are oriented towards the two sensitive
elements.
Avoid directing the sensor towards moving objects such as bushes, flags, trees etc., in order
to avoid unwanted detections.
In particularly difficult environments it’s suggested to set the “pulse count” function to 2 (DIP5
= ON), to increase immunity to false alarms.
The estimated battery life of DIRRVE detector is proportional to:
• the thermal cycles (heating and cooling) the battery is subject change its capacity and
autonomy
• the working temperature of the battery (e.g.: at temperature lower than 0 °C the battery
duration can be reduced to 50 %)
• the detection number to which the sensor is subject (independently from system arming
status): if the detector is installed in high crossing frequency area the battery autonomy is
dramatically reduced.
The sensor has a IP54 protection level against dust and water.
If possible, it is recommended to avoid installing the sensor in areas directly exposed to rain
or snow. Do not spray any high pressure water on the sensor. When possible, install the sensor
in covered areas.
For IP54 level maintaining it is mandatory to insert the O-RINGs included in the package.
If you do not comply with the above mentioned recommendations, it may occur a
malfunctioning of the sensor and, in this case, the manufacturer will decline any responsibility.
The sensor may detect pets.
3. POWER ON THE SENSOR
Set DIP4 to ON and DIP6 to ON , adjust the sensitivity trimmers R25 and R26 to minimum and then connect the battery.
When the sensor is powered, it starts the stabilization phase: the sensor makes the transmission LED blinking and emits
“beep” during all the phase. It is important to leave the sensor “at rest” (no detection) for example placing it in its box.
Wait the sensor is stabilized before proceed with installation: the sensor will be active and stable only after about 20 s the
red LEDs blinking.
This phase occurs also at battery replace.