Bulkhead with PIR Motion Detector IP44 240V

The Bulkhead with PIR Motion Detector is perfect for lighting patios, walkways and doorways. Ideal for lighting small areas where a high intensity light and automatic switching is required for convenience or security reasons. An IP44 rating and the construction from durable hard wearing plastic makes this light very robust and resistant to different weather conditions.

This fitting incorporates a PIR motion detector to automatically turn the light on. On the base of the PIR there are two dials, time and dusk (lux). The time dial controls how long the bulkhead will remain on once activated, from 5 seconds to 5 minutes. The dusk dial sets the bulkhead to be activated at different light levels, from light to dark.

The PIR motion detector is adjustable and has a 110° detection range. For more information on this product, please click on the technical and downloads tabs.

Selecting the Location

The motion detector has a number of detection zones, at various vertical and horizontal angles.
A moving human body needs to cross/enter one of these zones to activate the sensor. The best all-round coverage is achieved with the unit mounted at the optimum height of 1.8m.
Careful positioning of the sensor will be required to ensure optimum performance. The sensor is more sensitive to movement ACROSS its field of vision than to movement directly TOWARDS it. Therefore position the unit so that the sensor looks ACROSS the likely approach path. Avoid positioning the sensor where there are any sources of heat in the detection area (extractor fans, tumble dryer exhausts etc.).
Reflective surfaces (ie pools of water or white-painted walls) and overhanging branches may cause false activation under extreme conditions. During extreme weather conditions the motion sensor may exhibit unusual behaviour. This does not indicate a fault with the sensor. Once normal weather conditions return, the sensor will resume normal operation.

Operation Test and Procedure

Walk Testing Procedure

The sensor will rotate from left to right. Adjust the sensor to point in the desired direction. Set the two adjustment controls on the underside of the unit to the following positions: TIME - Fully anti-clockwise, DUSK (LUX) - Fully clockwise.

The unit will now operate during daytime as well as at night, illuminating the lamp for approx. 5 seconds each time. 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 - 2 minutes 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 lamp will illuminate. Repeat the above, walking at various distances and angles to the unit. This will help you to establish the detection pattern.

• Setting Up for Automatic Operation

When walk tests are complete, the unit can be switched to automatic operation:
The TIME setting controls how long the unit remains illuminated following activation and after all motion ceases. The minimum time (fully anti-clockwise) is approx. 5 seconds, whilst the maximum time (fully clockwise) is approx. 5 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.
The setting is best achieved by the procedure below:
Set the DUSK control knob fully anti-clockwise. Wait until darkness falls.
When the ambient light level reaches the level of darkness at which you wish the lamp to become operative (ie. At dusk), SLOWLY rotate the control in a clockwise direction until a point is reached where the lamp illuminates. Leave the control set at this point.

At this position, the unit should become operative at approximately the same level of darkness each evening. Observe the operation of the unit. If the unit is starting to operate too early (ie. when it is quite light), adjust the control slightly anti-clockwise. If the unit starts to operate too late (ie. only when it is very dark), adjust the control slightly clockwise. Continue to adjust until the unit operates as desired.

Masking the Sensor Lens

To reduce the sensor coverage, preventing detection in unwanted areas, mask the sensor lens using electricians tape or similar. 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.