5. MANUAL OVERRIDE MODE
The Heater can be switched on for longer time periods by use of the Manual Override Mode. This can be activated at
night by using the internal wall switch or circuit breaker. Switch the isolation switch twice (off/on, off/on) within 2
seconds. The unit will now stay on continuously until dawn or until it is switched back into Auto Mode.
To switch the unit back into Auto Mode, switch isolation switch off/on once within 1 second. The unit will return to Auto
Mode.
6. OPERATION & TESTING
WALK TEST PROCEDURE
The detector will adjust vertically through 180 degrees Adjust the detector to point at the desired elevation. Angling
downwards will limit forward looking range. Set the two adjustment controls on the underside of the unit (diagram C) to the
following positions:
TIME - Fully anti-clockwise
DUSK - Fully clockwise
The unit will now operate during daytime as well as at night, illuminating the lamp for approx. 5 seconds each time detection
occurs. This allows testing to be carried out to establish the best position for the sensor. The lamp will immediately illuminate
as the unit goes through its "warm-up" period. After approximately 1 minute the lamp will extinguish. Try to remain outside
the detection area during the warm-up period.
Walk across the detection area approx 5 metres from the unit. As you cross a detection "zone" the lamp will illuminate. Now
stand still until the lamp extinguishes (this should take approx. 5 seconds).
Start moving again. As you cross each "zone" the heater will operate.
Repeat the above, walking at various distances and angles to the unit. This will help you to establish the detection pattern.
If the detection area is too small for your requirements, try angling the sensor head up. This will increase the coverage
distance. Angling the head downwards will reduce the range should a smaller coverage area be required.
SETTING UP FOR AUTOMATIC OPERATION
When walk tests are complete, the unit can be adjusted for automatic operation:
The TIME setting controls how long the unit remains illuminated following activation & after all motion ceases. The
minimum time (fully anti-clockwise) is approx. 5 seconds, whilst the maximum time (fully clockwise) is approx. 18 minutes.
Set the control to the desired setting between these limits.
The DUSK control determines the level of darkness required for the unit to start operating.
Set the DUSK control knob fully anti-clockwise. The unit will now start operating at dusk. If you require the heater to activate
earlier, wait until the ambient light level reaches the level of darkness at which you wish the heater to become operative,
SLOWLY (a small step at a time) rotate the control in a clockwise direction until a point is reached where the lamp
illuminates. If you require the heater to activate in daylight rotate the control fully clockwise.
7. MASKING THE SENSOR LENS
To restrict the sensor coverage, preventing detection in unwanted areas, mask the sensor lens using the masks provided
in the accessory pack (see diagram D). For your information, the top section of the lens covers long range detection, the
bottom covers short range. Similarly the left and right lens sections cover the left and right detection areas respectively.
