VEHICLE LOOP DETECTOR

The LD213 is a dual channel inductive loop card detector. The use of microprocessor and surface mount technology enables a large number of functions to be incorporated into a small package. The LD213 is compatible with most dual channel detectors on the market and is easy to set-up and install.

Typical applications in the parking and access control environments are safety loops, arming loops and entry or exit loops as well as direction logic.

Standard features of the detector are :

 · 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.

· Switch selectable Sensitivity.

Eight sensitivity settings are available on the switches to allow flexibility in configuration and application.

· Switch selectable Frequency.

The frequency of the loop is determined by the inductance of the loop and the frequency switch setting. If the frequency switch is on, the frequency is reduced. It may be necessary to change the frequency to prevent cross-talk between adjacent loops on different detectors.

· Selectable Extend Time.

When switched on this feature extends the output for 2 Seconds.

· Pulse Relay Selection.

The detect relay may be configured for a pulse output, and to energise on detection of a vehicle or when the vehicle leaves the loop.

· Selectable Pulse Time.

This feature sets the length of time that the pulse relay will be energised for. 1 Second or 0.2 Second.

· Selectable N/O or N/C relay output.

Internal jumpers enable the output relay contacts to be configured for normally open or normally closed contacts.

· Direction Logic

This feature enables the detector to give a pulse output on relay1 for a vehicle traveling from loop1 to loop2 and a pulse output on relay 2 for a vehicle traveling from loop2 to loop1. To enable this feature switches 2 and 4 must be ON.

· Power Indicator.

This LED illuminates when power is present.

· Detect Indicator.

This LED Indicator is illuminated when there is a vehicle over the loop or the loop is faulty. This LED can also be used to determine the loop frequency. On reset, count the number of times the LED flashes. Multiply this number by 10KHz.For example: if the LED flashes 6 times, then the loop frequency is between 60KHz and 70KHz.

· Loop Fault Indicator.

This LED Indicator is illuminated when the loop is either open circuit or short circuit and is used to give a visual indication of a faulty loop.

TECHNICAL DATA

1. POWER REQUIREMENT:

2. PRESENCE RELAY OUTPUT: This output has both a normally open and normally closed relay contact rated at 0.5A/220VAC.

3. PULSE RELAY OUTPUT: This output is a normally open relay contact rated at 0.5A/220VAC. This relay may be configured to operate on vehicle detection or exit from the loop.

4. INDICATORS: LED indicator's show: Power, 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 gas arrestor protection on loop input.

8. CONNECTOR: LD213-1: 10 Pin Molex female connector. To be used with Molex 26-61-41.
                        LD213-2: Screw terminals.

9. DIMENSIONS: 105mm (Long) X 69mm (WIDE)

10. OPERATING TEMPERATURE: -40°C to +80°C

11. STORAGE TEMPERATURE: -40°C to +85°C

12. HUMIDITY: up to 95% non condensing

13. Complies with EMC Directive 89/336/EEC and Low Voltage Equipment Directive 73/23/EEC.

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