BEA Superscan instruction manual Adjustment of the Detection Distance, Function J1 Anti-Masking

Adjustment of the Detection Distance

Use the procedure listed below to adjust each detector in order to obtain detection 12" to 16" above the floor. The following adjustments must be made with the detectors in the normal mode (position of J1)

1.To adjust the length of the pattern (from 2’ to 8’), turn the distance potentiometer (cam) clockwise to increase the detection distance.

This can be tested by waving your hand in front of the optic and watching for the red LED to turn on.

NOTE: One notch of the distance adjustment corresponds to approximately 4".

2.Repeat this procedure until the desired distance is achieved.

Function J1: Anti-Masking

Normal mode Anti-Masking mode

Anti-Masking is the ability to help reduce chances of non-detection due to faulty environmental situations, and also allows constant detection in the event of one or more of the following situations:

•Module aimed too high

•Module incorrectly oriented (towards sky for example)

•Defective amplification chain

•Faulty infrared transmitter

•Not enough reflectivity off of floor surface

Note: Floor must have at least 10% reflectivity to allow anti-masking to function properly.

This configuration greatly reduces the chance of allowing the modules to function less than optimally. If one of the above-stated faults exists, the detector will remain active, thereby causing the door to stay open or to not open. This fail-safe operation will cause the door to be inoperative in the automatic mode, since there will be a constant signal either to the safety input or to the activation input of the door control, depending on which module is sensing detection. If an extremely dark floor is present set jumper to normal mode. Also set to Normal Mode if using with B.E.A.'s SuperStop Module. The J1 function must be set on each module.

Function J2: Relay Mode

J2 is a two-position jumper, which enables either a passive or active relay to be selected. The SuperScan comes factory preset with the relay in the ACTIVE MODE.

ACTIVE RELAY: The relay is energized when the detector is at rest

1. NORMALLY OPEN: Use the NC & COM terminals (5 & 6) & leave JP2 at the factory preset position.

FAIL SAFE MODE

Contact closed if detection or power supply removed (green led OFF, red led ON)

2. NORMALLY CLOSED: Use the NO & COM terminals (4 & 6) & leave JP2 at the factory preset position.

Contact open if detection or power supply removed (green led OFF, red led ON)

75.1035 V1 Feb 2001 Page 6 of 8