ABOUT SETTINGS ON PCB
There are two DIP switches and a jumper JP1 on the PC board, each switch has 3 positions. Refer to Fig. 7. Setting
description as follows,
SW1,
Position 1 (DSF, Direct Sun Filter)
ON: If the PIR would be shined by sunlight directly, this position should be set to ON to reduce the sunlight
interference. Please note the PIR detection angle would become narrower, about 60 degrees, refer to Fig 9. If
possible, avoid the location where can be shined by direct sunlight because the PIR reliability would
decrease.
OFF: If the PIR would not be shined by sunlight directly, this position should be set to OFF to get wider detection
angle, about 100 degrees.
Position 2 (Alarm LED)
ON: LED would light on when motion is detected and RF transmits.
OFF: LED would keep off when motion is detected and RF transmits. This can prevent the PIR being easily
discovered by the intruder. However the LED is enabled automatically when it works in TEST mode.
Position 3: Unused
SW2
Position 1 (Mode)
ON: Only in Walk Test Mode it should be set to ON to check LED response for the two sensors separately.
OFF: It must be set to OFF in NORMAL Mode.
Position 2 (PC, Pulse Count)
ON: PIR triggers alarm only after 3 pulses are detected within about 10 seconds. The detection sensitivity is lower but
the reliability becomes higher.
OFF: PIR triggers alarm when 1 pulse is detected, this has higher sensitivity.
Position 3 (Sens, Sensitivity)
ON: Lower detection sensitivity with higher reliability. This is used in harsh environment.
OFF: Higher detection sensitivity with lower reliability. This is recommended when the detection range is over 5
meters.
JUMPER JP1,
It must be placed at “OFF” position in Normal Mode; and at “ON” position only in Walk Test mode.
WALK TEST
It is essential to perform Walk Test to verify the optimum detection coverage of the PIR. Steps as follows,
1. Refer to Fig. 8 for the reed switch location on PIR PC board and place a magnet (you can use the one supplied with
Door Sensor) closely to the reed switch, until the LED turns ON→OFF→ON, this takes about 3 or 4 seconds, and then
remove the magnet. Afterward the PIR would enter “TEST” mode for 3 minutes.
2. Walk into the detection area at normal speed and observe the Alarm LED (Red) indicator. The LED stays ON
normally, and turns OFF when the PIR detects motion.
3. If necessary you can check the detection status of the two sensors by setting jumper JP1 at “ON” position and SW2
position 1 to ON, refer to Fig 7. Under this condition, the LED1 for sensor 1 and the LED2 for sensor 2 would react
independently, and then you can adjust the mounting height to fulfill your detection coverage if needed. Note that only
when the two sensors detect motion simultaneously, the PIR triggers alarm.
4. Test mode can be terminated before the 3-minute timeout by placing the magnet closely to the reed switch of the PIR
again, and the Alarm LED would turn OFF. The PIR restores to NORMAL mode afterward. In NORMAL mode, the PIR
activates the RF transmission when it initially detects movement, and then disables the RF transmission until it has not
detected any motion for 3 minutes. In other words, if the PIR is installed in a heavy traffic area, it won‟t transmit RF
