7
BatterIes
Ness LUX is supplied with 2 x CR123A Lithium
batteries which have an expected service life of up
to 10 years of normal use in domestic installations
(SLEEP switch setting, 2Min).
LUX’s dual battery system allows the motion detec-
tor and radio transmitter to operate independently
of the night-light.
The motion detector and radio transmitter will draw
power from either battery, but battery A must be
installed to power the night-light.
Battery a (top) provides power for the Night-Light,
Motion Detector and Radio Transmitter.
Battery B (bottom) provides power for the Motion
Detector, Radio Transmitter and blue alarm LED.
Battery PolarIty
Note that LUX is supplied with both batteries fitted
in reverse for safe transportation.
Note the correct polarity when inserting the batter-
ies. Installing the batteries in reverse will not harm
the unit but it will not operate correctly.
Both batteries must be installed to maximise
service life.
Spare batteries are available from Ness Corpora-
tion or resellers.
Always replace both batteries at the same time.
Use only CR123A 3V Lithium. Part No. 142-028.
Batteries are sold individually.
BATTERy A
BATTERy B
Model: LUX PIR
Test Mode is 1 hour
2 sec 2min SLEEP
DRK
LHT Light Level
ON
OFF Light
ON
OFF Alarm LED
1-2
3-4 Pulse
HI
LOW Range
Battery A
Battery B
Correct polarity
taMPer sIgnal
The onboard tamper switch transmits a Tamper
signal when the detector is removed from the
back housing.
your Ness control panel may beep and alert you
to a tamper alarm condition. Replace the detector
in the back housing to restore the tamper switch. If
necessary refer to your control panel’s manual for
instructions on resetting the tamper alarm.
PrograMMIng to a control Panel
Ness LUX sends a Learn signal to the receiver/
control panel when either battery is inserted.
Refer to your Ness control panel or receiver’s
manuals for instructions on “learning” LUX.
low Battery sIgnal
The blue alarm LED will flash every 3 seconds to
indicate a low battery condition. This continues
for 4 minutes each time the detector is triggered.
The detector also transmits a low battery signal to
the control panel.
Low battery condition is triggered when the battery
voltage sinks to approximately 2.6 volts under load.
Both batteries should be replaced immediately.
