OW5011 - Temperature Controller IFM - Free user manual and instructions

Product type	Infrared temperature controller
Brand	IFM
Model	OW5011
Switching temperature	350°C or 750°C depending on version
Power supply	10-36 V DC
Output type	PNP, NPN or AC/DC depending on wiring
Electrical connection	3 wires: BN (brown), BU (blue), BK (black); GN/YE (green/yellow) for AC/DC
Protection	IP67
Ambient temperature	-25°C to 80°C
Housing material	Stainless steel
Dimensions	M18 x 1, length 60 mm
Weight	Approx. 100 g
Maximum detection distance	Up to 5 m (with radiative losses beyond)
Opening angle	Variable depending on configuration (calculable via formula)
Detection diameter	Depends on distance and angle (formula provided)
Mounting	By mounting base (ref. E20426 optional)
Recommended accessory	Protective sleeve E20427 for harsh environments
Maintenance and cleaning	Cleaning of optics via compressed air through the protective sleeve
Safety	Disconnect power before connection; fuse recommended; AC/DC output not short-circuit protected
General information	Detects thermal radiation of objects for switching or temperature monitoring

Frequently Asked Questions - OW5011 IFM

What is the switching temperature of the OW5011?

The OW5011 can be configured for a switching temperature of 350°C or 750°C depending on the device version.

How to install the infrared detector?

Point the detector at the target object and secure it using the mounting base (ref. E20426). Ensure the object temperature at least exceeds the switching temperature.

What is the electrical connection diagram?

Connection is made via three wires: BN (brown) for power, BU (blue) for ground, BK (black) for output. For the AC/DC version, a GN/YE (green/yellow) wire is also present. Refer to the diagram in the manual.

What to do in case of parasitic thermal radiation?

If parasitic radiation (e.g. from furnaces) disturbs operation, use a detector with a higher switching temperature or a protective sleeve (ref. E20427).

How to calculate the detection diameter?

Use the formula: d = 2 × L × tan(α/2) + Ø, where L is the detection distance, α the opening angle, and Ø the diameter of the optics. A diagram is provided in the manual.

What is the maximum detection range?

The maximum range is approximately 5 meters. Beyond that, radiative losses in air require an object temperature significantly above the switching temperature.

Can this device be used with low-temperature objects?

No, the object temperature must at least equal the switching temperature (350°C or 750°C). This device is designed for hot objects.

How to clean the optics?

Dusty or humid environments: use the protective sleeve (E20427) and inject compressed air to clean the lens.

What to do in case of a short circuit on the AC/DC output?

The AC/DC output is not short-circuit protected; a short circuit can destroy the device immediately. Use an external fuse as recommended.

Where to find accessories like the mounting base or protective sleeve?

The references are: mounting base E20426 and protective sleeve E20427. They are available from manufacturer IFM or its authorized dealers.

USER MANUAL OW5011 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.