PEM300D
4
VELLEMAN
7. Troubleshooting
Problem
Possible cause
Solution
Power LED does not light up. 1. No power supply.
2. Bad wiring.
1. Connect the power lines.
2. Check and repair the power lines.
Alarm LED does not light up
when the beam is interrupted.
1. No power supply.
2. Bad wiring.
3. Beam is reflected on another object
and sent into the receiver.
4. The 2 beams are not broken
simultaneously.
5. The beam interruption time is
shorter than the delay time.
1. Connect the power lines.
2. Check and repair the power lines.
3. Remove the reflecting object or change
the beam direction.
4. Adjust beam direction so they're broken
simultaneously.
5. Set a shorter delay time
Alarm LED lights up
continuously.
1. Deregulated alignment.
2. Object between the 2 units.
3. Unit sensors are dirty.
1. Realign the units.
2. Remove object or relocate units.
3. Clean the sensors with a soft cloth.
Intermittent false alarm signals. 1. Bad wiring.
2. Unstable power supply.
3. Object between the 2 units.
4. Electronic noise source nearby.
5. Unstable installation of units.
6. Unit sensors are dirty.
7. Deregulated alignment.
8. Small animals pass by.
1. Check and repair wiring.
2. Stabilize power supply.
3. Remove object or relocate units.
4. Remove noise source or relocate units.
5. Stabilize installation location.
6. Clean the sensors with a soft cloth.
7. Realign the units.
8. Set a longer delay time.
8. Technical Specifications
Maximum Range (outdoors) 30m / 100ft
Maximum Range (indoors)
60m / 200ft
Current Consumption
36mA
Power Supply
10~30V DC
Detection System
Simultaneous breaking of 2 beams
Delay Time
50ms~700ms (adjustable)
Alarm Output
contact capacity: NC/NO 1A / 120V AC
Tamper Output (Tx & Rx)
dry contact relay: NC ; contact capacity: 1A / 120V AC
Alarm LED (receiver)
red LED - ON when units 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 (both)
green LED - ON indicates there is power supply
Laser Wavelength
650nm
Laser Output Power
≤
5mW
IP Rating
IP-55
Alignment Angle
horizontal ±90° ; vertical ±15°
Operating Temperature
-25°C (-23°F) to +55°C (+131°F)
Total Weight
1.1kg
Housing Material
PC resin
Dimensions (WxHxD)
74 x 170.5 x 72mm
For more info concerning this product, please visit our website www.velleman.eu.
The information in this manual is subject to change without prior notice.
