OW0006 - Infrared detector IFM - Free user manual and instructions

Brand	IFM
Model	OW0006
Product type	Infrared detector (infrared temperature sensor)
Switching temperature	350°C or 750°C depending on variant
Opening angle (α)	Parameter determining detection area (formula provided in documentation)
Detection distance	Up to 5 m without significant losses; beyond that, requires higher object temperature
Output	PNP (DC), NPN (DC) or AC/DC depending on version
Power supply	10-30 V DC (PNP/NPN) or 24-240 V AC/DC
Electrical protection	Miniature fuse recommended
Short-circuit protection	Yes for DC versions; no for AC/DC version
Mounting	Point towards object; mounting base optional (ref. E20426)
Cleaning	Use a protective sleeve (ref. E20427) with compressed air to clean the optics
Main use	Detection of hot objects (e.g., furnaces) and temperature control
Precautions	Avoid parasitic background radiation; choose appropriate switching temperature
Wiring	BN = brown, BU = blue, BK = black, GN/YE = green/yellow
Standards	Compliant with IFM specifications

Frequently Asked Questions - OW0006 IFM

How to install the OW0006 detector?

Point the detector towards the object to be detected and mount it. A mounting base (ref. E20426) is available as an accessory to facilitate installation. Ensure that the object temperature is at least equal to the detector's switching temperature.

What is the switching temperature of the OW0006?

The switching temperature is 350°C or 750°C depending on the device type. Check your model variant.

What is the maximum detection distance?

The detection distance depends on the object temperature and the opening angle. Up to 5 m, losses are negligible. Beyond that, the object temperature must be significantly higher than the switching temperature to compensate for radiation losses in the air.

How to clean the detector optics?

In harsh conditions (dust, vapor), use the protective sleeve (ref. E20427). Introduce compressed air into the sleeve to clean the optics without contact.

What type of power supply is required?

The detector operates with 10-30 V DC (PNP/NPN outputs) or 24-240 V AC/DC depending on the version. Refer to the wiring diagram and use a miniature fuse if recommended.

Can the detector operate in the presence of smoke or steam?

Yes, but harsh conditions such as smoke or steam can affect detection. It is recommended to use a protective sleeve and compressed air to keep the optics clean.

How to avoid false detections due to background?

If parasitic thermal radiation from the background (e.g., furnaces) causes unwanted triggering, use a detector with a higher switching temperature to filter out undesired hot sources.

What to do in case of a short circuit?

The AC/DC versions are not protected against short circuits; a short circuit can destroy the device immediately. Check the wiring and insert a suitable miniature fuse according to the technical data sheet.

What accessories are available?

Two main accessories: the mounting base (ref. E20426) for orientation, and the protective sleeve (ref. E20427) for harsh environments.

How to calculate the detection area?

Use the formula: detection diameter d = 2 × distance l × tan(α/2) + sensor diameter. The opening angle α is a key parameter. Refer to the detection distance diagram for a visual assessment.

USER MANUAL OW0006 IFM

Function and features

Infrared heat sensors absorb the heat radiation of objects and convert it into a switching signal.

They are used for object detection or temperature monitoring.

Switching temperature 350^ / 750^ (depending on the type of unit).

Installation

Align the sensor towards the object to be detected and mount it. A special mounting base is available as accessory (order no. E20426) for simple mounting.

The object must at least have the switching temperature of the sensor and must cover the visible area which depends on the chosen angle of aperture and sensing distance.

Calculation of diameter of visible area/sensing distance/angle of aperture

$$ \boxed {d = 2 \times I \times \tan \frac {\alpha}{2} + \varnothing} $$

$$ \boxed {I = 0. 5 \times \frac {d - \varnothing}{\tan \frac {\alpha}{2}}} $$

$$ \boxed {\alpha = 2 \times \tan^ {- 1} \left(\frac {d - \varnothing}{2 \times I}\right)} $$

$$ \alpha = \text {a n g l e} $$

$$ \mathsf {l} = \text {s e n s i n g d i s t a n c e} $$

$$ d = d i a m e t e r o f v i s i b l e a r e a $$

$$ \varnothing = \text {l e n s d i a m e t e r} $$

Sensing range diagram:

In the event of ranges of >5m radiation losses must be taken into account. The temperature of the object should therefore be much higher than the switching temperature of the sensor.

Electrical connection

Disconnect power, then connect the unit according to the wiring diagram.

DC PNP

DC NPN

AC/DC*

Note: insert a miniature fuse according to the technical data sheet, if specified.

Recommendation: check the unit for reliable function after a short cirucit.

Core colours of ifm sockets: BN = brown, BU = blue, BK = black,

GN/YE = green/yellow.

*Output not short-circuit protected.

Short circuit can lead to immediate destruction of the unit.

Operation

Check the safe functioning of the sensor.

If in the application wrong switching occurs due to background radiation (e.g. ovens), use units with higher switching temperatures.

For applications in difficult environments (e.g. dust, vapour) or in the event of heat reflections of the environment use infrared heat sensors with a protective tube (order no. E20427).

If necessary, keep the optics clean by means of passing compressed air into the connection piece of the protective tube.