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United Kingdom • www.clasohlson.co.uk

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Motion detector

Art.no  36-1084 

Model   ST-09

  36-1085   ST-09

Please read the entire instruction manual before using the product and save it 
for future reference. We reserve the right for any errors in text or images and any 
necessary changes made to technical data. If you have any questions regarding 
technical problems please contact our customer services.

Instructions

•  Installation may only be carried out by a certified electrician. 
•  Read the instruction manual carefully before installing the device and keep 

the manual for later reference.

•  The product should not be taken apart or modified. This product must 

be installed using an approved outdoor cable having a 1.5 mm² area and 
according to current laws and regulations.

•  This motion detector may not be used in conjunction with a dimmer.

The motion detector is not suitable for controlling inductive/phase-
shifted loads

•  The motion detector is more suitable for controlling a resistive load with 

a power factor, cos

φ

 of 1 (cos phi = 1), such as an incandescent light bulb. 

•  When controlling inductive/capacitive loads with low power factors, cos

φ

 

< 1 (cos phi < 1), where the voltage and current are out of phase with each 
other, such as fluorescent tubes, CFLs and LED lamps, the operating life 
of the relay can be shortened due to the higher starting current required at 
the moment the light source is switched on.

•  The motion detector should be connected in such a way that it controls 

an external relay/contactor capable of withstanding a higher load when 
phase-shifted loads are to be controlled via the motion detector (e.g. 
a series of fluorescent tube lights or CFLs).

Placement

The detector is IP44 classed, allowing it to be used outdoors.

 

Consider the following before installing: 
1. The detector is made to function optimally when it is mounted 2.5 metres 

above ground.

2. Avoid installing it near trees or bushes, since these can interfere with 

the detector’s functioning especially in windy or rainy weather.

3. Avoid focusing the detector on hot surfaces e.g. ventilation ducts.
4. Avoid mounting the detector so that artificial lighting hits the detector directly 

or indirectly. This will disable the twilight function if the LUX control is set to 
the dark (

) setting.

5. Avoid mounting the motion detector close to strong magnetic fields as this 

may activate the light unnecessarily.

6. The detector is most effective for detecting motion moving across 

the surveillance area and less effective for movement towards the detector. 

If possible, adjust the detector so that it can detect movement from 
the sides also. The detector works best in low humidity and at an ambient 
temperature around 20 °C. Rising and falling temperatures and increased 
humidity can contribute to a gradual decreased sensitivity in both angle and 
distance detection.

Installation

1. Always turn off the power before installation (set the switch 

and fuse to 

OFF

, or unscrew and disconnect 

the fuse completely).

2. Remove the screws (1) holding 

the back cover and the block 
terminal. The cables from 
the detector (PIR-cables) are 
already mounted to the block 
terminal.

3. Fasten the back cover to the wall 

using included screws (2). The back 
cover must be mounted right side up 
with the UP 

 on top. 

4. Thread the power cable through 

the insertion hole and connect 
the cables to the terminal block 
(see fig).

5. Secure the detector to the back cover with the screws (1).
6. Set the activation time and sensitivity using the TIME and LUX controls (3) 

at the bottom of the detector. 

7. Aim the detector to the desired surveillance area.

Setting

At the bottom are the controls for TIME (activation time) and LUX (brightness).

TIME (activation time)

 

The TIME control (on the left when facing the device) controls the activation time. 
Time can be adjusted from 10 ± 5 seconds to 4 ± 1 minutes. Turn the knob 
clockwise to decrease the activation time and anticlockwise to increase it.

LUX (brightness)

The LUX control (on the right when facing the device) controls the brightness 
level. Turn the knob anti-clockwise to activate during darkness (

) and 

clockwise for activation also during daylight (

) (24 hour operation).

Function test

After connecting to the mains, place the detector in “warm-up mode” and  
wait for about 30 seconds. It will then switch automatically to AUTO mode. 
Once the detector is in AUTO mode you can test it:
1. Set the LUX control to the day position (

) (fully clockwise) and the TIME 

control to the lowest setting (fully clockwise). 

2. Move towards the detector. Once the detector activates the light will be on 

for the entire set time.

3. Test several times, using a variety of approach angles to set the surveillance area.

Responsible disposal

This symbol indicates that this product should not be disposed of 
with general household waste. This applies throughout the entire 
EU. In order to prevent any harm to the environment or health 
hazards caused by incorrect waste disposal, the product must be 
handed in for recycling so that the material can be disposed of in 
a responsible manner. When recycling your product, take it to your 
local collection facility or contact the place of purchase. They will ensure that 
the product is disposed of in an environmentally sound manner.

Technical data

Voltage

 

220–240 V AC, 50 Hz

Max relay outlet load

 

Max 1000 W resistive load (bulb/halogen bulb), 

 

max 300 W (fluorescent tube, LED bulbs)

Fuse

 

6,3 A (permanently installed, non-interchangeable)

Detection angle

 

180° (horizontal)

Detection range

 

Up to 12 m

Activated light duration

  Adjustable from 10 ± 5 seconds to 4 ± 1 minutes 

LUX level

 

Adjustable from daylight to darkness 

Protection class

 IP44

Operating temperature

 

−10 to + 55 °C (optimal operating temp: 20 °C)

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