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LRM 8112 Movement Detector

Technical data

• Sensitivity

level

optimised for use in office (or industrial) 
applications. Most arm/hand movements 
will be detected within the sensitivity area 
for radial movements.

pattern

nearly circular,
8 m diameter for tangential 
movements
6 m diameter for radial movements

• Output

voltage

0 Vdc for active detector (open collector,
normally open.)
-0.5 - +15 Vdc maximum rating

current

maximum current sinking > 10 mA
Outputs can be "wired OR" up till at least 
10 detectors.
One detector output can drive up to at
least 4 controller inputs.

• Inactive-state delay timer

0, 5, 10, 30 minutes ±20%, cumulative.
to be selected via 3 dipswitches.

• Indicator

Red LED, "on" when output is active. Can
be disabled via dipswitch.

• Power supply

12 Vdc ±10%, 10 mA (LED on), derived 
from connected controller

• Electrical connections

modular socket ("Telejack") standard pinning:
1. 12 Vdc supply voltage
2. ground
3. 5 Vdc supply voltage (n.a.)
4. light sensor output signal (n.a.)
5. infrared receiver output signal (RC5)

(n.a.)

6. movement detector output signal

• Housing

colour 

white RAL 9010

material polycarbonate
flame rating

V0

glow wire test 

850 °C 

5 s extinction

visible surface texture

9-125 UN-D 249, suitable for lacquering

• Operating conditions

ambient temperature

+5 - +50 °C

relative humidity

20 - 85%, no condensation

• Storage conditions

ambient temperature

-25 - +85 °C

relative humidity

10 - 95%

• EMC

immunity

in accordance with EN 50082-1

radiated interference

in accordance with EN 50081-1

• Reliability

call rate

1% per year (estimated)

life time

10 years (estimated)

• Dimensions

sensor

116 mm x 30 mm

mounting plate

70 mm x 9 mm

mounting ring

113 mm x 60 mm

• Weight

sensor

90 g

mounting plate

10 g

mounting ring

70 g

• Mounting

fixation

plate with bayonet-catch for surface
mounting ring with springs and bayonet-
catch for recessed mounting minimum
recess clearance 60 mm. Ceiling tiles need
not be removed for mounting

Related equipment

• Stand-alone control

TRIOS

light controller

LRC 1010, LRC 1020 
LRC 1015, LRC 1025 
LRC 1620 DALI Room Controller

• General Purpose Components

cables
sensor cables

LCC 8011, LCC 8012, LCC 8013,
LCC 8014 

branching connector

LCC 8024

sensors
multi-sensor

LRI 8133

Related documentation

• Installation Instructions
• Technical Application Manual TRIOS

Miscellaneous

• Sensitivity

The unit is based on the "passive infrared principle", i.e. it detects
infrared radiated by a moving object.Therefore the practical
sensitivity depends on the combination of characteristics of the
object. It increases with size and temperature (difference with
background), and changes with speed and direction of the moving
object. Sensitivity is maximum for tangential movements and minimal
for radial movements.

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