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Radar Detector RD_L

Home > Products > Traffic Light Installations > Radar Detector RD_L

Application range | Features | Description | Technical data: RD_L232
Technical data: RD_L2232 | PDF download

Application range
  • Traffic light installations
  • Speed warning installations
Features
  • High distance range
  • Safety IP66
  • Easy installation and maintenance
  • Bi-directional or uni-directional vehicle detection
  • Adjustable speed threshold
  • Mounting bracket with ball-and-socket joint for wall
    or pole mounting
  • Data transfer and parameterising with hyper terminal
    via RS232 interface
  • Versions with (7 - 60) V DC and 230 V AC available

Detail view


Function Description

The RD_L232 radar sensor measures the speed of objects and switches a relay when the adjusted speed value is exceeded.

The detectors are mounted beside or above the road. The sensitivity can be adjusted. A distance range of approx. 100 m can be realised.

The standard version has a serial RS232 interface. Optionally available is a version with Hex-switches for parameterising.

The detection direction (arriving, leaving or bi-directional), the relay hold time and the relay function "fail-safe" can be adjusted.

A floating relay contact is provided as switching output. The standard impulse length is 1 sec.

The high protection class (IP66) and the wide range of working temperature allow the outside use
of the device.

Technical data: Version RD_L232
Power supply (7 - 60) V DC, typical 12 V DC
Power consumption
         12 V DC
         24 V DC

60 mA, max. 80 mA
35 mA, max. 45 mA
Signal output via relay
(max. current / power / voltage)
2 A / 30 W / 70 V DC
2 A / 62 W / 50 V AC
Distance range
(vehicle in free field)
approx. 100 m
Measurement range 0.5 km/h - 255 km/h; resolution 1 km/h
Direction arriving / leaving / bi-directional
Transmitting frequency 24.125 GHz, K-Band,
Transmission power 5 mW, EIRP < 20 dBm
Characteristics of antenna 28° x 28°, radial symmetric; 3 dB points
Speed threshold 0 to 255 km/h, adjustable1 in 1 km/h steps
Relay hold time 125 ms to 6.35 s, adjustable2 in 25 ms steps
Serial RS232 Interface 9600 Baud, 8 data bits, 1 stop bit, no parity, no protocol
Enclosure polycarbonate
Protection class IP66
Cable feed M16 screwed cable gland for cable Ø 5 mm - 10 mm
Pin connection spring clip, wires up to 1.5 mm2
MTBF at 70°C > 130 000 h
Operating temperature -40°C - +70°
Dimensions length: 83 mm, width: 81 mm, height: 61 mm
Weight: 12 V / 230 V
(complete weight of device)
250 g / 350 g

1For option manual adjustment - Setting via hex-switch, 15 preset thresholds
2For option manual adjustment - Dip-switch, 150 ms (counting application) or 1 s (typical for warning systems)

Technical Data: Version RD_L2232
Permissable input voltage 230 V AC +5 % / -10 %
maximum power consuption 3 Watt
Type of load relais RE 300 manufacturer Siemens or Schrack
maximum continuous / surge current relay 6 A / 15 A (pulse 4 s)
nomin. / max. switching voltage relay 250 V AC / 440 V AC
max. breaking capacity relay 1500 VA AC
Relay contact material AgCdO, AgNi, 15 µm gold coated
max. wire gauge of terminal 2.5 mm2 wire, 1.5 mm2 cord


This device is a radio transmitter system whose transmission frequency
is not harmonised in the European Union.

Dimensions in mm
(Measurements are subject to manufacturer's tolerances)



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