OW5009 - Temperature Controller IFM - Free user manual and instructions

Product type	Infrared temperature detector
Brand	IFM
Model	OW5009
Switching temperature	350 °C or 750 °C (depending on version)
Maximum detection distance	5 m (beyond that, radiation losses)
Aperture angle	Calculated using formula: d = 2 × l × tan(α/2) + ∅
Power supply	DC PNP, DC NPN or AC/DC (depending on connection)
Recommended fuse	Miniature, according to data sheet
Wire colors	BN = brown, BU = blue, BK = black, GN/YE = green/yellow
Short-circuit protection	Output not protected for AC/DC; check after short-circuit
Housing material	Metal (stainless steel likely)
Protection rating	IP65 (estimate)
Operating ambient temperature	-25 °C to +70 °C (estimate)
Dimensions (approx.)	Thread M18 × 1, length 60 mm
Weight (approx.)	50 g
Accessories	Mounting base E20426, protective sleeve E20427
Main functions	Contactless detection of hot objects, temperature monitoring
Maintenance and cleaning	Clean the optics with compressed air via the protective sleeve
Safety	Disconnect the installation from power before connection
Spare parts and repairability	No user-serviceable parts; contact IFM

Frequently Asked Questions - OW5009 IFM

How to connect the OW5009 detector?

Disconnect the installation from power. Connect the wires according to the diagram: BN (brown) = +V, BU (blue) = 0V, BK (black) = output, GN/YE (green/yellow) = ground if present. Use a suitable miniature fuse.

What is the switching temperature of the OW5009?

It is 350 °C or 750 °C depending on the device version. Check the label on the product.

How to calculate the detection zone?

Use the formula: detection diameter d = 2 × distance l × tan(α/2) + sensor diameter. The aperture angle α is given in the data sheet.

What to do in case of parasitic background radiation?

Use a detector with a higher switching temperature or install the protective sleeve (ref. E20427) with compressed air blowing to clean the optics.

Does the detector work with alternating current?

Yes, there is an AC/DC version. Caution: the output is not protected against short-circuits in AC/DC mode. A short-circuit can destroy the device immediately.

What is the maximum detection distance?

Up to 5 m. Beyond that, take into account radiation losses in the air: the object temperature must be significantly higher than the switching temperature.

How to mount the OW5009 detector?

Point the detector at the object to be detected. Fix it using the mounting base (ref. E20426) if necessary. Ensure that the object temperature exceeds the switching temperature.

Is the sensor protected against dust?

Yes, the protection rating is IP65 (estimate). In dusty environments, use the protective sleeve with compressed air to clean the optics.

Can I use this detector to measure an accurate temperature?

No, it is a temperature threshold detector, not a thermometer. It switches when the object exceeds the switching temperature.

How to test proper operation after installation?

After connection, check that the detector switches correctly in the presence of a hot object. If a short-circuit has occurred, check proper operation immediately.

USER MANUAL OW5009 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

$$ \begin{array}{l} d = 2 \times I \times \tan \frac {\alpha}{2} + \varnothing \ I = 0. 5 \times \frac {d - \varnothing}{\tan \frac {\alpha}{2}} \ \end{array} $$

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

$$ \begin{array}{l} \alpha = \text {a n g l e o f a p e r t u r e} \ l = \text {s e n s i n g d i s t a n c e} \ d = d i a m e t e r o f v i s i b l e a r e a \ \varnothing = \text {l e n s d i a m e t e r} \ \end{array} $$

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.