EL-2650
The EL-2650 is a wireless PIR sensor that is able to distinguish between permitted and non-permitted motion*. This allows
the occupants free movement within the premises while detecting intrusion via doors or windows. The sensor implements a
feature to combat the problem of multiple transmissions, which drastically reduce the life of the batteries. After a transmission
is made, the EL-2650 initiates a delay of approximately four minutes during which transmissions will not be sent.
Location of Detector
Consider the following before mounting the sensor:
• Select a location from which the pattern of the sensor
is most likely to be crossed by a burglar, should there
be a break in.
• Avoid a location that comes in direct contact with
radiators, heating/cooling ducts or air conditioners.
• Do not place bulky objects in front of the sensor.
IMPORTANT: Do not install the sensor above beds,
sofas, desks or in any area that people are likely to spend
continued periods of time. If the occupant does not move
within the delay time, an alarm will be generated when
moving away from the protected area.
Installation Instructions
1. To open the housing, remove the cover screw and,
using a flathead screwdriver, press the locking tab at
the side of the unit.
2. Remove the printed circuit board (PCB) by
unscrewing the PCB screw. Note: Do not touch the
face of the PYRO sensor.
3. Apply battery power by removing the isolator that
separates the battery from the contacts on the
battery holder.
4. Place the Mode jumper over pins 1 & 2 (Radio mode); the LED flashes. Note: Install the Mode jumper only after
applying battery power.
5. Set the receiver to Registration mode and wait for the receiver to indicate that the transmitter has been registered
successfully. Alternatively, the EL-2650 can be registered to the receiver by manually entering the transmitter's
serial number. Note: The receiver allocates a transmitter number to each registered unit. Write this number and
the number of the zone on the sticker provided. Affix the sticker inside the front cover for future reference.
6. Remove the jumper and place it over one pin for storage - see Mode Jumper Safeguard.
7. Knock out the mounting holes and test the transmitter from the exact mounting position before permanently
mounting the unit.
8. Attach the base to the wall at the recommended height of 2.2-2.6m. The EL-2650 can be wall or ceiling mounted.
9. Mount the PCB at the required setting using the horizontal adjustment scale and tighten the PCB screw
– see Operation and Adjustment, PCB Adjustment.
10. Attach the front cover and replace the cover screw.
Operation and Adjustment
Warm-up Time: After applying power, allow the sensor to warm up for 110 seconds.
Alarm Delay: The Alarm Delay is a feature designed to allow the occupant to
move freely within the protected area without triggering a false alarm. When
approaching the protected wall, an alarm is not generated because the sensor’s
beams are crossed from the permitted direction. After detecting permitted
motion, the sensor counts down the Alarm Delay time. This timer is re-
triggered
every time the sensor detects motion. During the Alarm Delay, the sensor permits motion in both directions. The
duration of the alarm delay is selected using the Alarm Delay jumper – see Table 1.
PCB Adjustment: PCB adjustment enables you to angle the infrared beams by changing the position of the pyro
element in relation to the lens. To adjust the PCB, loosen the PCB screw and slide the PCB to the required position
using the PCB adjustment scale as a guide. Slide the board towards +2 to position the beams closer to the wall. Slide the
board towards -2 to position the beams further away from the wall. After adjusting the board, tighten the PCB screw.
Figure 1: EL-2650 (Cover Off)
Delay Jumper Position
1 minute Removed
4 minutes Installed
Table 1
Dela
Jumpe
LED
Jumper
PCB
Screw
Tamper
Switch
PCB
Adjustment
Scale
Pyro
Sensor
Batter
Holde
LED
Indicator
Mode
Jumper
