
Max Detection Coverage: 360º cone shape from ceiling height
of 2.5m giving 7m dia. coverage at
floor level (for affect of ceiling height
on coverage see section 6.1.1)
METER Adjustment: Adjustable continuously from + giving
maximum detection coverage at floor
level to – giving substantially reduced
detection coverage at floor level
CE Compliant
EC Directives: Conforms to latest directives
6 Installation and Wiring
Please disconnect power completely and read the
entire instruction manual carefully before installation.
PDSM361 – 10A breaker
A circuit breaker (250VAC,10A) type C according to EN60898-1
of load shall be installed in the fixed wiring for protection of load I.
6.3 Installation procedure
1. Insert a large flat blade screwdriver into the groove as shown each
side in turn and twist (see Fig. 4) to remove outer cover.
Surface Mount
Presence Detector
Instructions
Model PDSM361
1 General Information
These instructions should be read carefully and retained for further
reference and maintenance.
2 Safety
Before installation or maintenance, ensure the mains supply to the
PIR switch is switched off and the circuit supply fuses are removed
or the circuit breaker turned off.
It is recommended that a qualified electrician is consulted or used
for the installation of this PIR switch and install in accordance with
the current IEE wiring and Building Regulations.
Check that the total load on the circuit including when this
PIR switch is fitted does not exceed the rating of the circuit cable,
fuse or circuit breaker.
3 Technical Specifications
Mains Supply: 230V AC ~ ±10% 50Hz
Temperature Range: 0°C to 45°C
IP Rating : Sensor: IP40
Load: Load I (L
This product must be
protected by a fuse or
circuit breaker with
a maximum rating of
10A or lower.
Halogen Lamp Max: 1000W
Fluorescent Lamp Max: 550W
LED Lamp Max: 400W
) for Lighting: μ contact gap
All procedures indicated in this manual must be
carried out by a professional installer.
4 Package Contents
Visual I.D.
Item Sensor Instructions Wood
screw screw (optional
Ø4 x Ø3 x purchase)
25.4mm 10mm
Quantity 1 1 2 2
Self-tapping
IR10
5 Product Description
5.1 Features
The PDSM361 controller is a ceiling surface mount presence detector for
indoor applications in commercial and domestic locations. The PDSM361
covers lighting applications only.
Adjustment of Time and LUX values can be made either by the dial
controls on the sensor body or by the IR10 Infrared remote control.
• The sensor has a very high density of sensitive beams covering the
detection area. These are evenly distributed ensuring no dead spots
and detection of the smallest movements.
• Either side or bottom cable entry.
• Built-in red LED in sensor giving confirmation of remote control
settings and easy test operation.
5.2 Dimension (see Fig. 1)
6.1 Select the required location
6.1.1 Sensor adjustment
Fig. 2 shows the way coverage alters with ceiling height and with
adjustments of the METER dial setting.
Side View Top View (showing individual
beam pattern at floor level)
Fig. 2
Ceiling Height (H) Detection Coverage Diameter (D)
with METER on +
2m 7m
2.5m 7m
3m 10m
3.5m 12m
4m 12m
4.5m 12m
If the METER control is turned to – the coverage diameter is
substantially reduced.
We do not recommend the use of these units with heights
greater than 4.5m.
6.1.2 Helpful tips for installation
As the sensor responds to temperature change or moving heat sources,
please avoid the following conditions:
• Avoid highly reflective surfaces within the detection range.
• Avoid movable objects e.g. curtains and plants in the detection range.
(these may cause erroneous detections when moved by air flow from
fans or air conditioner).
• Avoid heat sources (e.g. heating vents, radiators, air conditioners
and filament lamps) in detection range.
• Avoid fans drawing air across the sensor lens.
6.2 Wiring diagrams
Lighting is controlled by a PDSM361 (see Fig. 3).
Fig. 4
2. To Separate bottom case from lens body force a small flat blade
screwdriver into the hidden gap shown partially exposed in Fig. 5
then push the screwdriver in towards the centre and lever the
bottom case assembly away from the lens body pins.
Fig. 5
3. Remove cardboard and screws used to assemble and fix the sensor
(see Fig. 6).
Fig. 6
Delay Time Adjustment: TIME: Adjustable from 5 sec. to 20 min.
(continuously adjustable)
Extendable to 30 min. and 60. min when
in use with the IR10 remote control
Lux (light level)
Adjustment: Adjustable from 10 LUX to 2000 LUX
(continuously adjustable)
Fig. 3
Fig. 1

4. There are two methods of cable entry into the unit. One feeds into
the bottom case (Fig. 7-A), another feeds into the side of the bottom
case and outer cover (Fig. 7-B). Select your preferred cable entry and
score round the appropriate knock-out pattern in the outer cover
will need to be scored as well. Push out the chosen knock-outs and
feed the wires through, then connect the wires to the corresponding
terminal blocks.
Fig. 7-A (Bottom entry)
Fig. 7-B (Side entry)
5. Insert the lens body pins into the bottom case contacts,
fasten it with screws firmly and snap on the outer cover the
outer cover (see Fig. 6).
6. Recheck and wipe slightly with a clean dry cloth if the sensor
surface is dirty.
7. There is a pattern of slots on the bottom case that should enable
the fixing holes of the previous unit to be used. Fasten bottom case
onto the ceiling with wood screws (see Fig. 8).
If you experience problems, do not immediately return the unit
7 Test and Operation
7.1 Time, Lux and Meter Controls
1. Following marked values (excepting TEST and
the values are continuously adjustable over the control range
(see Fig. 9).
) are approximate,
8 Troubleshooting
When the PDFM362/PDFM361 is not working as expected go through
the troubleshooting guide below.
Problem Possible Suggested
Cause Solution
Lights do not
turn on.
Fig. 9 (PDSM361 control dials)
7.2. TIME control adjustment
These are delay times between the sensor being triggered and the
controller switching off assuming no further detections are made.
If there are additional detections the time delay applies from the
latest detection.
TIME: Adjustable from 5 sec. to 20 min. (lighting). (Extendable to
30 min. and 60 min. when in use with the IR10 remote controller).
2.1 LUX control adjustment
The LUX level below which the sensor will operate is adjustable from 10
LUX (operation only after dusk) to 2000 LUX (operation at any light level).
2.2 METER control adjustment
This control sets the diameter of detection coverage at floor level.
Assuming a ceiling height of 2.5m at the + end of the scale the coverage
diameter will be 7m, at the – end of the scale the coverage diameter will
be 1m.
The effect of METER control at other ceiling heights is shown in section 6.1.
3 Test Mode
3.1 Sensor warm up
The detector will take a minimum of 60 seconds to warm up when
the power is connected to it for the first time or if the power is being
re-connected after being turned off.
During this period load I and the sensor LED will both be on. After the
warm up is finished the sensor will revert to operation according to
the settings of the controls on the sensor body.
3.2 LED Function
There is a red LED (see Fig. 10) built into the sensor and visible through
the PIR lens that shows the status of the loads and enables testing to be
carried out without the loads being connected.
If the IR10 remote controller is in use the LED will flash to give
confirmation of the commands and adjustments made by the IR10.
Lighting or
HVAC does not
turn off.
LED does not
turn on.
Nuisance
triggering.
9 Optional Remote Control – IR10
The unit can also be controlled by the infrared remote controller IR10.
As well as allowing remote setting of times and light level the IR10 also
enables continuous operation for 8 hours in ON or OFF modes as well
as continuously in detection mode controlled by or independent of light
level.
The IR10 is invaluable during commissioning enabling changes to be
made without resorting to ladders.
Further to this the IR10 can download stored settings from one sensor
to additional sensors in the same area.
1. Power is not turned on.
2. Incorrect control
dial setting.
3. Incorrect wiring.
4. Faulty load.
1. Incorrect time setting.
2. Incorrect wiring.
1. Out of detection range.
2. Power supply not on.
3. ‘TIME’ knob setting
isn’t on ‘Test’.
4. Incorrect wiring.
There are heat sources,
HVAC vents/fans,
highly reflective surfaces
or anything which may
be swayed by air
movement within the
detection coverage.
1. Switch on the power.
2. Check if control dials are
set to the correct position,
then supply the power to
check if the LED will turn on.
3. Refer to wiring diagrams
(Fig. 3 to Fig. 5)
4. Replace the faulty load.
Check that the correct
1.
delay time is set on either
TIME 1 or TIME 2 control
dial. Then determine if
nuisance triggering is
keeping the unit turned on.
2. Make sure supply
and load wires are
connected correctly.
1. Walk within the effective
detection range.
2. Switch the power on.
3. Turn the control position
to ‘Test’.
4. Refer to wiring diagrams
(Fig. 3 to Fig. 5).
Avoid aiming the sensor
toward any heat sources,
such as air conditioners,
electric fans, heaters or any
highly reflective surfaces.
Make sure there are no
swaying objects within the
detection coverage.
to the store. Telephone the Timeguard Customer Helpline;
HELPLINE
020 8450 0515
Or email helpline@timeguard.com
Qualified Customer Support Co-ordinators
will be on-line to assist in resolving your query.
3 Year Guarantee
In the unlikely event of this product becoming faulty due to defective
material or manufacture, within 3 years of the date of purchase, please
return it to your supplier in the first year with proof of purchase and it
will be replaced free of charge. For years 2 to 3 or any difficulty in the
first year, telephone our helpline.
Note: a proof of purchase is required in all cases. For all eligible
replacements (where agreed by Timeguard) the customer is responsible
for all shipping/postage charges outside of the UK. All shipping costs
are to be paid in advance before a replacement is sent.
Fig. 8
8. Restore the power and refer to section 7 Test and Operation.
Fig. 10
3.2 Walk Test
Turn supply on and wait at least 60 seconds for the system to
settle down. Turn Time 1 control to the Test position. This means that
the sensor LED and load I will turn on for 2 seconds after triggering and
then be off for 3 seconds after which the sensor can be re-triggered.
The triggering is independent of light level.
The installer should move around in the detection area to establish that
it is all covered. If necessary the tilt and rotation of the sensor should be
adjusted, after which the area should be walk tested again to confirm
coverage is as required.
Fig. 11
For a product brochure please contact:
Timeguard Limited.
Victory Park, 400 Edgware Road, London NW2 6ND
Sales Office: 020 8452 1112
or email csc@timeguard.com
www.timeguard.com
67-058-276 (Issue 5)
Zerofour – July 2017