Loop detectors are most often used to open or prevent the closing of boom gates, doors or sliding gates.
The detector is connected to an inductive wire loop mounted in the road surface. When vehicles pass over the loop the detector switches an output. The eight sensitivity settings and ASB (automatic sensitivity boost) offer enough flexibility to detect small cars and high bed trucks.
Reset Switch: The reset switch enables the detector to be manually reset during commissioning and testing. This results in the detector re-tuning the sensing loop and becoming ready for vehicle detection.
Selectable Pulse Time: This feature sets the length of time that the pulse relay will be energised for 0.1 second or 0.2 second.
Pulse Relay Selection: The Pulse relay may be configured to energise on detection of a vehicle or when the vehicle leaves the loop.
Sensitivity Boost: This feature sets the undetect level to maximum sensitivity and is used to prevent loss of detection of high-bed vehicles.
Switch Selectable Sensitivity: Eight sensitivity settings are available on the switches to allow flexibility in configuration.
Switch Selectable Frequency: Two frequency settings are available to prevent cross-talk between adjacent loops.
Filter Option: This option is used to provide a delay between detection of the vehicle and switching of the output relay. This delay is normally used to prevent false detection of small or fast moving objects.
Permanent Presence Option: This feature ensures detection of the vehicle will be maintained when the vehicle is parked over the loop for extended periods.
LD113B & LD213B Compact Loop Detectors
10 – 50 VDC 60 mA 8 – 35v VAC 50/60Hz
Presence / Pulse relay
LED indicators show: Power, Detect state and Loop Fault
Loop isolation transformer, zener diode and gas discharge tube
120ms after vehicle enters the loop
LD 113B: 10Way Screw terminal
LD 213B: 14Way Screw terminal
-20°C to 70° C
Rotech Group | Vehicle + Pedestrian Access Control Equipment
At Rotech we supply and manufacture Australian Made boom gates and full height turnstiles. We also source high quality pedestrian and vehicle access control equipment that is relevant to the Australian ...