DUSW Time/Lux set-up
Thetimeforwhichthelampwillstayonforcanbeadjustedfrom2to16hoursas
shownindiagramC.Tocheckthespindleissetcorrectly-quickpresstheMODE
button(lessthan4seconds).AREDLEDwillashthenumberoftimesrelating
tothepositionofthespindleasfollows:
1ash-Lightlevelonly(timerdisabled) 6ashes-10hours
2ashes-2hours 7ashes-12hours
3ashes-4hours 8ashes-14hours
4ashes-6hours 9ashes-16hours
5ashes-8hours
LUXCalibrationisrecommendedtotakeplacewhenambientlightlevelsarelow
(preferablyatnightorwithdaylightexcludedasfaraspossible,fromthecalibration
measurement).Setupoftheswitchinglevelontheluxswitchshouldtakeplace
whentheambientluxis“asrequired”fromnaturaldaylight.
WhensetupandcalibratedDUSWwillinhibitthearticiallightsfromswitching
ON, if the ambient measured lux is greater than the user set threshold. If the
articial lights are ON and the LUX then rises greater than the set threshold
(plustheStoredCalibratedHysteresis)theproductwillthenswitchthearticial
lightsoffafterthe1minutexedtimedelay.
1.RotatetheLUXpotfullyclockwise.(MinimumcontrolLux)
2.RotatetheTIMEdelaypotfullyanticlockwise.
3.Press and hold the MODE push button for 4 seconds. The status LED
flashes RED/GREEN. The unit will go into calibration mode, where
it measures the addition of LUX from the controlled artificial light
source. This eliminates the possibility of artificial lights switching on,
then off (cycling) after the under/over lux time windows have elapsed.
Luxsamplingiscompleteafter5minutesallowingthearticiallightsourceto
warmuptofulloperatingluxoutput.
4.Ensureareaisnotoccupiedwhencalibrationistakingplace.Ensuretheproduct
issitedsuchthattheluxcellcanseeonlythereectedlightofthesourceitis
controlling,NOTotherswitched/varyingarticiallightsources.
5.Ifmovedfromitsoriginalcalibrationsite,itwillneedtobere-calibrated.
6.Afterapprox.5minutestheLEDwillstopashingRED/GREENandshouldgo
xedGREEN(abovethreshold)ORwillnotbeilluminated(belowthreshold).The
controlledlampswillbeheldofffor1minute.Thenthecurrentluxwilldetermine
theswitchstate.Ifthecurrentluxlevelisbelowthelowestinhibitthresholdof
10LUX,thecontrolledlightswillbeswitchedon.Ifthecurrentluxlevelisabove
thelowestinhibitthreshold,theloadwillbeforcedoff.
7.IftheLEDisxedgreen,thisindicatesthatthecurrentLUXcontrolsettingin
additiontothearticialLUX(ascalibrated)is“inrange”oftheproduct(1000
LUXmaximumonthecell)andcanbecontrolledwithoutlampcycling.
8.IftheLEDisxedRED,thistellstheuserthatthecurrentLUXcontrolpoint(pot
setting)inadditiontothearticialLUX(measuredincalibration)isnearingthe
rangelimit/isOUTofrangeoftheproduct,(1000LUXmaximumonthecell)
andthelightsMAY/WILLcycle.
Note:AstheluxpspindleismovedanticlockwiseitmaybethattheLEDgoesfromxedgreen
toxedredbeforeitgoesoff.ThisinformstheuserthatthecurrentLUXcontrolpointinaddition
tothearticialLUXiseitherin rangeoroutofrange.Whenmovingthepot anticlockwise, if
theLEDgoesREDbeforeitgoesoutthentheLUXcontrolpointneedstobeadjustedlower
ORtheunitrepositionedwithrespecttothecontrolledload,sothatitisNOTseeingasmuch
articiallightandthenrecalibrated.
9.Aftercalibration:(Withtheloadinhibitedoff).Whentheambientluxhasreduced
tothelevelyourequirethelampstoswitchon,assumingtheLEDisxedgreen
(potfullyclockwise),movethepotanticlockwiseuntiltheLEDgoesoff.This
needstobedoneinsmallincrementsbyadjustingthepotandmovingwellout
thewayoftheLUXcell.EnsuretheLEDisstilloffwhenfullnaturaldaylightis
seenbythecellatthatparticulartime.i.e.notshadedbythecommissioning
“body”.After1minutetheloadshouldswitchon.
B: Lux adjustment
Locate safety cap plastic
pins in the hole ‘L’ and
second ‘N’ holes above
the termination screws.
Press firmly to attach.
E: Safety cap
Dual colour
Status LED Lux Cell
Mode
Time
Delay
Spindle
Lux
Setting
Spindle
MODE
STATUS
TIME LUX
10
1000
A:Time/Lux adjusters (inside casing)
L
load
optional manual
wall switch for
overriding off
N
230 VAC
SL
N
D: Wiring diagram TIME
min max
16
14
12
10
8
6
0*
2
4
* Light level only
(timer disabled)
C: Time adjustment
DUSW
