Gate Loop Kit for Hinged Gates
Most sites have gates of one form or another which interrupt the sensor zone and as such need to be protected. The gap between fence and gate is bridged using a GDGLK-A/B Gate Loop Kit for swing gates or a GDGLK-C for sliding gates. The kits comprise of two of the boxes as shown in Figure 5 connected by a prewired flexible coiled cable which carries the sensor signal to and from the gate. This non sensitive cable is designed to withstand the flexing caused by the gate opening and closing. The box is fitted with two glands, the use of which is dependent on the gate type and the positioning of the box. Refer to the sensor installation manual QA189 for further details. 1. Terminate the ends of the sensor as described in Section 2. 2. Loosen the glands on the boxes and pass the terminated end into the box so sufficient length is available on the tails to be wired into the terminal blocks. Ensure that the sensor is passed through the correct gland to correspond to the position of the terminal block, i.e. through the left gland to connect to the left terminal block at the left hand side of the gate and vice versa at the right hand side. Tighten the glands by hand ensuring the rubber sealing ring grips the sensor jacket and not the HDPE tubes. 3. Position the boxes just above the line of the sensor to allow rain water to run away from the glands and fix to the fence using the mounting kit provided. The mounting bar is located across the diagonals of the box and is fixed in place by dropping the screws provided into the large holes at the corner of the box and screwing these into the mounting bar placed on the other side of the fence. If fixing the box to a wall or other solid surface the mounting bar can be dispensed with and the box fitted directly to the Pre-wired by Geoquip GDALPHA sensor from analyser GQFC-9 dead cable to other side of gate Pre-wired cable to box on gate GDGLK GATE LOOP KITS 8 surface with appropriate fixings. 4. Connect the sensor tails to the terminal blocks on the PCB. 5. Replace the box lids, taking care not to over tighten the lid screws and verify that the tamper switch in each box operates by listening for the click of the switch action as the lid is screwed down. In order to attain a weatherproof seal the lid must be replaced with the correct orientation, i.e. with the chamfered edges vertical.