VEHICLE LOOP DETECTORS

The LD260 / 460 is a Eurocard 2 / 4 channel inductive loop detector. The detector uses loop multiplexing to prevent crosstalk between adjacent loops and is easy to set-up and install. Optional features include a RS485 communications port.

Typical applications in the traffic environment are traffic control (traffic lights), toll systems and vehicle counting.

Standard features of the detector are :

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.

Each channel can be individually setup to operate in presence or passage mode.

Each channel can be individually setup for a presence time of 10 minutes or 1 hour.

Two frequency settings are available to prevent cross-talk between adjacent loops on different detectors.

TECHNICAL DATA

1. POWER REQUIREMENT: 19.6V - 28.8VDC.
2. PRESENCE RELAY OUTPUT: This output has a normally closed relay contact rated at 0.5A/220VAC.
3. FAULT RELAY OUTPUT: This output has a normally closed relay contact rated at 0.5A/220VAC.
4. INDICATORS: LED indicators show: Detect state and Loop Fault.
5. DETECTOR TUNING RANGE: 15 - 1500 uH.
6. FREQUENCY: Two step adjustable.
7. PROTECTION: Loop isolation transformer, zener diode and MOV protection on loop input.
8. CONNECTOR:  LD460: DIN 41612 Form C.
                               LD461: DIN 41612 Form B.
9. DIMENSIONS: 160mm X 100 X 25mm
10. OPERATING TEMPERATURE: -40°C to +80°C
11. STORAGE TEMPERATURE: -40°C to +85°C
12. HUMIDITY: up to 95% non condensing

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