niko 351-25459 Presence Absence Detector Instructions

June 16, 2024
niko

351-25459 / 351-25469

Read the complete user manual before carrying out the installation and activating the system. Keep the manual for future reference.

DESCRIPTION

This flush-mounted secondary 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 duration of activation is extended as long as movements of persons are detected.
This motion detector is used as a secondary detector to increase the detection area of a master.
The detector comes in the following 4 versions:

| 351-25459| 351-25469
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Flush-mounting| •| •
Round| •| •
Detection range (at a height of 3 m)| 14 m| 26 m
Reference code of corresponding master| 351-25457| 351-25467

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 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.

MOUNTING

The detector is designed for ceiling mounting. The diameter of the detection area depends on the mounting height (see Fig. 1c).
The detector is mounted as follows:

  1. Release the detector from its base.
  2. Connect the base as shown in the wiring diagram in Fig. 3 (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.

WIRING

Connect the detector as shown in the wiring diagram in Fig. 3.
Via the S input a maximum of 10 secondary detectors can be connected to one master. Limit the length of the electric wires to a maximum of 100 metres.

Conductor L
Neutral conductor N
Secondary detector(s) S

CONNECTING DEVICES

This secondary detector can only be used in combination with a master. The master controls the activation and deactivation of the device(s).

CONFIGURATION OF THE DETECTION AREA

The detector is ready for use approximately 1 minute after connection to the electricity grid. The detection area can only be modified with the SENS potentiometer on the device when the detector has been switched on.

DISPLAY

The statuses pictured below are shown on the indication LED on the device.

Status LED display Description
Start-up The LED flashes briefly for approximately 1 min.
Motion detection The LED flashes longer once

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 of the master (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.

TECHNICAL DATA

Reference code 351-25459 351-25469
Dimensions in mm (LxW) Ø 105 Ø 105
Dimensions in mm (H) 35 50
Dimensions in mm (H) (incl. non-visible part) 71 86
Power supply voltage 230 V / 50 Hz
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
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).

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FIGURE 3niko 351 25459 Presence Absence
Detector - FIGURE 4

Niko prepares its manuals with the greatest care and strives to make them as complete, correct and up-to-date as possible. Nevertheless, some deficiencies may subsist. Niko cannot be held responsible for this, other than within the legal limits. Please inform us of any deficiencies in the manuals by contacting Niko customer services at support@niko.eu.

Support & contact
nv Niko sa

Industriepark West 40
9100 Sint-Niklaas, Belgium
www.niko.eu
+32 3 778 90 80
support@niko.eu
PM351-25458R22465

Documents / Resources

| niko 351-25459 Presence Absence Detector [pdf] Instructions
351-25459, 351-25469, 351-25459 Presence Absence Detector, Presence Absence Detector, Absence Detector, Detector
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References

Read User Manual Online (PDF format)

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