EN
PM351-25456R22324
351-25456 / 351-25457 / 351-25466 / 351-25467
4
Read the complete user manual before carrying out the installation and activating the system. Keep
the manual for future reference.
1. DESCRIPTION
This flush-mounted motion detector registers movement via a passive infrared sensor (PIR). It is most sensitive
to movements passing through the detection area (see Fig. 1a). The sensitivity to movements directly towards
the sensor is about 50% less (see Fig. 1b).
The detector only switches on once the set daylight condition (twilight level) is no longer reached. The duration
of activation is extended as long as movements of persons are detected. After switching on, the detector detects
the daylight level and automatically switches off when there is sufficient daylight.
The detection area of this detector can be increased by installing one or more secondary detectors. You can
find the reference codes in the table below.
The detector comes in the following 4 versions:
351-25456
351-25457
351-25466
351-25467
Flush-mounting
•
•
•
•
Square
•
•
Round
•
•
Detection range
(at a height of 3 m)
14 m
14 m
26 m
26 m
Reference number of corres-
ponding secondary detector
351-25458
351-25459
351-25464
351-25469
2. USE
The detector is suitable for controlling lighting.
Be aware of the following during installation:
• Only mount the detector on stable ceilings.
• Hide any moving objects in the detection area by shielding the lens.
• Do not place any lighting closer than 1 m from the sensor (see Fig 2).
• Do not mount the detector in the direct path of a cold (see Fig. 2) or hot air flow (see Fig. 2).
• This product needs to be installed in a flush-mounting box with dimensions according to the CEE7 standard
sheet XIII or XV and a minimum flush mounting depth of 40 mm.
3. MOUNTING
The detector is designed for ceiling mounting. The range of the detection area depends on the mounting
height (see Fig. 1). For master/secondary applications the master must be mounted where there is an average
amount of light.
The detector is mounted as follows:
1. Release the detector from its base (see Fig. 4).
2. Connect the base as shown in the wiring diagram in Fig. 7 (also see § 4).
3. Secure the base in a standard 68 mm flush-mounting box.
4. Configure the detector (see § 6).
5. Place the detector back onto the base.
4. WIRING
Connect the detector as shown in the wiring diagram in Fig. 7.
You can switch the conductor to the R input on and off with an external push button. Use a N.O. push button
without indication LED and limit the length of the electrical wires.
You can connect a maximum of 10 secondary detectors to the S input. Limit the length of the electric wires.
Conductor
L
Neutral conductor
N
Switched output relay
L’
N.O. push button
R
Secondary detector(s)
S
5. CONNECTING DEVICES
A high inrush current decreases the life span of the relay integrated into the detector. Respect the technical
specifications of the lighting manufacturers to prevent overloading the relay (see Fig. 3). We recommend
connecting a maximum of 3 to 4 detectors in parallel. This keeps the switching circuit organised. If the number
of switching cycles is higher than average or in case of an increased load, we recommend to run the load via
an external relay or an external fuse.
6. CONFIGURATION
The detector is ready for use approximately 1 minute after connection to the electricity grid. The settings can
only be changed while the detector is switched on. The settings can be changed using the potentiometer on the
device or using the remote control 351-25320 (to be purchased separately).
6.1. Switch-off delay
Using the TIME potentiometer, the switch-off delay after the final movement is set (see Fig. 5b). When the
relay output is connected to a staircase timer, set the TIME switch to 'pulse'.
6.2. Light sensitivity
Using the LUX potentiometer, you can set the threshold value of the twilight switch continuously between
ð
(daytime mode, 2000 lux) and
(night mode, 5 lux) (see Fig. 5a).
6.3. Detection range
Using the SENS potentiometer, you can set the sensitivity of the PIR sensor (see Fig. 5c).
6.4. Operating mode
Using the MODE potentiometer, you select operation as an absence detector (SEMI-AUTO) or a presence
detector (AUTO) (see Fig. 5d).
7. EXTERNAL PUSH BUTTON
When you use the detector as an absence detector (SEMI-AUTO), you need to connect an external push button
with which you can switch the light on (see Fig. 7a).
When you use the detector as a presence detector (AUTO), the external push button is optional. The light will
automatically switch on when movement is detected. The light can always be switched on or off manually using
the external push button. The duration of the switch position (on or off) is extended as long as movements are
detected. After the last detected movement the switch position is maintained for the period set.
• Keep the external push button pressed for 0.1 to 2 s to activate or deactivate automatic operation.
• Keep the external push button pressed for 2 to 4 s to switch the detector on for 6h. To cancel this switch
position, briefly press the button again.
• Keep the external push button pressed for longer than 4 s to switch the detector off for 6h. To cancel this
switch position, briefly press the button again.
8. DISPLAY
The statuses pictured below are shown on the indication LED on the device. You can change the settings using
the potentiometers on the device or the remote control 351-25320 (to be purchased separately). If a setting is
changed, the relay output of the detector will switch off briefly.
Status
LED display
Description
Start-up
The LED flashes briefly for
approximately 1 min.
Changing a setting
The LED flashes briefly 3 times
Motion detection
The LED flashes longer once
6h ON or 6h OFF
The LED flashes for 6 hours
9. TROUBLESHOOTING
Malfunction
Solution
The switch output does not switch.
• The daylight level is too high. Lower light sensitivity.
• Check the lighting and the fuse.
• Check the mode (AUTO/SEMI-AUTO).
The switch output switches too often. • The daylight level is too low. Increase light sensitivity.
• Shield the lens.
• The detection range is too wide. Decrease the detection range.
10. TECHNICAL DATA
Reference code
351-25456
351-25457
351-25466
351-25467
Dimensions in mm (LxW)
88 x 88
Ø 105
88 x 88
Ø 105
Dimensions in mm (H)
35
35
50
50
Dimensions in mm (H)
(incl. non-visible part)
71
71
86
86
Power supply voltage
230 V / 50 Hz
Relay switching capacity
max 2,000 W, 8.7 A (cos
ϕ
= 1.0)
max 1,000 VA, 4.35 A (cos
ϕ
= 0.5)
Mounting height
2 – 6 m
2 – 8 m
Detection angle
360°
Detection range
max 14 m at a mounting height
of 3 m
max 26 m at a mounting height
of 3 m
Light sensitivity
5 – 2,000 lux
Relay switch-off delay
Pulse, 10 s to 20 min
Protection class
II
Protection degree
IP 20
Ambient temperature
-20 – 45 °C
Wire input
Ø 1.5 mm
Marking
CE marked
Warnings regarding installation
The installation of products that will permanently be part of the electrical installation and which include dangerous
voltages, should be carried out by a qualified installer and in accordance with the applicable regulations. This
user manual must be presented to the user. It should be included in the electrical installation file and it should be
passed on to any new owners. Additional copies are available on the Niko website or via Niko customer services.
CE marking
This product complies with all of the relevant European guidelines and regulations. For radio equipment Niko llc
declares that the radio equipment in this manual conforms with the 2014/53/EU directive. The full text of the
EU declaration of conformity is available at www.niko.eu under the product reference, if applicable.
Environment
This product and/or the batteries provided cannot be disposed of in non-recyclable waste. Take your discarded
product to a recognised collection point. Just like producers and importers, you too play an important role in
the promotion of sorting, recycling and reuse of discarded electrical and electronic equipment. To finance the
rubbish collection and waste treatment, the government levies recycling charges in certain cases (included in
the price of this product).
