SECTION THREE
OPERATION AND TESTING
SETTING UP FOR AUTOMATIC OPERATION
The adjustment controls on the unit (diagram F) should be set as follows.
The
TIME
control determines how long the lamp remains illuminated after activation.
There are 5 designated “time on” settings O (or off), 2, 4, 6, 8 hours and dusk/dawn.
These settings allow the lamp to illuminate for the designated time on period after darkness falls
and the unit is activated.
If you require the lamp to be illuminated all night, set the time control fully clockwise to “Dusk/
Dawn”. The unit will then remain on until the following morning when the lux level increases
enough to switch the unit off during the day.
The
DUSK (LUX)
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
and the Time control to the required
number of hours or dusk/dawn (do
not
leave in the O (off, fully anti-clockwise) position).
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.
MANUAL OVERRIDE MODE
The light 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 supplying the
unit.
please note:- The unit CAnnOT be operated in Manual Override Mode during daylight hours. If
you want to test this function when installing the unit, this test must be carried out after dusk
when the unit has become operational.
To activate Manual Override Mode:-
Switch the internal wall switch/circuit breaker once (off/on) within 1 second.
The unit will now illuminate continuously until dawn or until it is switched back into Auto Mode.
To de-activate Manual Override Mode (ie. switch the unit back into Auto Mode):-
Switch the internal wall switch/circuit breaker once (off/on) within one second. The unit will
return to its Auto mode and will operate as set up initially.
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