Authorized Seco-Larm Reseller

Seco-Larm LD-1123-PAQ Loop Detector

Seco-LarmSKU: LD-1123-PAQ

Price:
Sale price$55.72
Stock:
Usually ships within 3-5 business days
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Description

The LD-1123-PAQ Loop Detector is designed to be used with gates or other vehicle detection systems. The unit connected to an input loop which is buried in the pavement. If a vehicle is over the input loop, the detector sends a signal to perform such actions as opening a gate, holding a gate open, or indicating that a vehicle is in a bay.

  • Single loop input
  • 3 Adjustable sensitivity settings
  • 2 Form “C” relay outputs
  • 11-Pin connector
  • ABS plastic housing
  • Power-on automatic reset
  • Automatic drift compensation for varying environmental conditions
  • Auto fault detection
  • Weather-resistant (IP54)
  • Terminal block (LD-ACC-TB) included
  • Also Available: Wire Harness (LD-ACC-WH)

 

Specifications

Sensitivity 3 levels of sensitivity
IP Rating Weather-resistant IP54
Type Loop Detector
Current Draw Standby – 40mA@12VDC / 40mA@24VDC, Active – 50mA@12VDC / 60mA@24VDC
Loop induction range 80~300 µH
Operating Voltage 12~24 VAC/VDC
Reaction time 100ms
Vehicle detection mode Combines relays #1 and #2 to detect vehicle presence, with pulse on entry
Presence output Temporary (triggers relay #1 as long as vehicle is in the loop, times out after 5 minutes)
Pulse output Pulses relay #2 on entry
Fault output Relay #2 is continually energized and the green LED stays on
Pulse output time 200ms
LEDs Red – Power indicator, Green – Status indicator (vehicle detected or fault)
Input / Output protection Built-in surge and transient protection
Case material Black ABS plastic
Operating Humidity Up to 95% without condensation
Operating Temperature -40°~149°F (-40°~65°C)
Dimensions 2-15/16″x1-7/16″x3-5/16″ (74x36x85 mm)
Weight 7.2-oz (203g)

 

Troubleshooting

Sensor does not detect the vehicle
  • Make sure that unit is powered up (red LED is lit) and has completed the initial self-test
  • Adjust the sensitivity setting
  • Check for fault in the loop or loose connection to detector
Sensor’s green LED lights when vehicle is detected, but there is no output
  • Check wiring between the sensor and device to be triggered
Detector continues to detect even after a vehicle leaves the loop
  • Check for fault in the loop or loose connection to detector
Detector sometimes detects even when there is no vehicle over the loop
  • Check for fault in the loop or loose connection to detector
  • Check for cross-talk between adjacent loops – adjust frequency
  • Check whether the loop is being triggered by other metallic objects nearby – gates, metal doors, pavement reinforcement
  • Loop may not be securely installed in pavement to prevent movement or moisture intrusion
Green LED flashes quickly
  • Check for loop short circuit
  • Check for loose connection between the loop and detector
  • Ensure loop inductance does not exceed permitted range

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