Velleman PEM300D - Manual (Page 7)

PEM300D
V. 02 – 27/11/2013 7 ©Velleman nv
3 Beam is reflected on another
object and sent into the
receiver.
Remove the reflecting object or
change the beam direction.
4 The 2 beams are not broken
simultaneously.
Adjust beam direction so they're
broken simultaneously.
5 The beam interruption time is
shorter than the delay time.
Set a shorter delay time
Alarm LED lights up continuously
Possible cause
Solution
1 Deregulated alignment. Realign the units.
2 Object between the 2 units. Remove object or relocate units.
3 Unit sensors are dirty. Clean the sensors with a soft cloth.
Intermittent false alarm signals
Possible cause Solution
1 Bad wiring. Check and repair wiring.
2 Unstable power supply. Stabilize power supply.
3 Object between the 2 units. Remove object or relocate units.
4 Electronic noise source nearby. Remove noise source or relocate units.
5 Unstable installation of units. Stabilize installation location.
6 Unit sensors are dirty. Clean the sensors with a soft cloth.
7 Deregulated alignment. Realign the units.
8 Small animals pass by. Set a longer delay time.
9. Technical Specifications
power supply 10 - 30V DC (not incl.)
detection system simultaneous breaking of 2 IR-beams
response time 50 ms - 700 ms (variable)
alarm output NC/NO 1A / 120 Vac
tamper output NC 1A / 120 Vac
LED indicators - alarm LED (receiver):
red LED on - when transmitter and receiver are not
aligned or when beam is broken
- signal LED (receiver):
yellow LED on - when receiver's signal is weak or
when beam is broken
- power LED (transmitter & receiver):
green LED on - indicates that device is ON
wavelength 650 nm
laser output power max. 5 mW