OW5003 - Temperature Controller IFM - Free user manual and instructions

Product type	Infrared temperature detector (temperature controller)
Brand	IFM
Model	OW5003
Switching temperature range	Up to 500 °C / 900 °C (depending on type)
Max ambient temperature	60 °C
Max fiber optic temperature	250 °C
Opening angle	2°, 7°, 68° (depending on model)
Detection distance	Up to 5 m (beyond, absorption losses)
Detection diameter	Calculable: d = 2 × l × tan(α/2) + ∅
Output type	PNP or NPN (depending on wiring)
Power supply	24 V DC (typical)
Short-circuit protection	No (a short circuit can destroy the device)
Electrical connection	Wire: BN (brown) = L+, BU (blue) = L-, BK (black) = output
Mounting	Amplifier outside hot zone, fiber in hot zone (max 250 °C)
Available accessories	Mounting base (E20426), additional lens
Maintenance	Clean lenses with a soft cloth; replace fiber if damaged
Safety	Disconnect power before connection; use a miniature fuse if specified
Approximate dimensions	60 × 60 × 30 mm (estimate)
Approximate weight	100 g (estimate)
Repairability	Replacement fiber optic (spare part)

Frequently Asked Questions - OW5003 IFM

How to install the OW5003 detector?

Mount the amplifier outside the hot zone (max ambient temperature 60 °C). Install the fiber optic in the hot zone (max 250 °C). Observe fiber bending radii. Use a mounting base (ref. E20426) if necessary.

What is the maximum switching temperature?

The switching temperature can reach 500 °C or 900 °C depending on the device type.

How to electrically connect the device?

Turn off the installation. Connect the wires: BN (brown) = L+, BU (blue) = L-, BK (black) = output. Use a miniature fuse if recommended. Caution: the output is not short-circuit protected.

How to calculate the detection diameter?

Use the formula: d = 2 × l × tan(α/2) + ∅, where l is the distance, α is the opening angle and ∅ is the lens diameter.

What to do if the detector does not work properly due to the background?

If background radiation interferes with detection, use a device with a higher switching temperature to avoid false triggering.

How to replace the fiber optic?

Remove the nut (1) and washer (2), carefully remove the seal (3), then the defective fiber (4). Slide the nut, washer and seal onto the new fiber, insert it into the base, replace the seal and tighten the nut.

What is the maximum detection range?

Beyond 5 meters, absorption losses in the air become significant. For longer ranges, the object temperature must be significantly higher than the switching temperature.

Can an additional lens be used?

Yes, an additional lens (sold as an accessory) allows increasing the range and setting the switching point precisely.

How to clean the detector?

Clean the lenses with a soft dry cloth. Avoid aggressive solvents. For the fiber, check that the tip is free of dust.

What output types are available?

The device can be wired as PNP or NPN according to the connection diagram. Refer to the diagram in the manual.

USER MANUAL OW5003 IFM

Technical line drawing of a mechanical component with threaded fastener and shaft (no text or symbols)

Technical diagram of a mechanical assembly with numbered components for identification

Betrieb

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 500^ C/ 900^ C (depending on the type of unit).

Installation

Mount the switching amplifier outside the hot area (ambient temperature max. 60°C). A special mounting base is available as accessory (order no. E20426) for simple mounting. Mount the fibre optics in the hot area (max. 250°C) in the required sensing distance. Use a lens attachment to extend the distance and to set the switch point more accurately (available as accessory).

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.

Notice! Do not bend the fibre optics sharply.

α d l

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

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

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

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

α = angle of aperture

l = sensing distance

d = diameter of visible area

∅ = lens diameter

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

graph TD
    A["Input"] --> B["1"]
    A --> C["2"]
    A --> D["3"]
    B --> E["L+"]
    C --> F["L-"]
    D --> G["R"]
    G --> H["Output"]

DC NPN

graph TD
    A["Symbol"] --> B["1"]
    A --> C["2"]
    A --> D["3"]
    B --> E["L+"]
    C --> F["L-"]
    D --> G["L-"]

AC/DC*

graph TD
    A["Diamond Symbol"] --> B["1"]
    A --> C["2"]
    A --> D["3"]
    B --> E["L1 L+"]
    C --> F["N L-"]
    D --> G["⊥"]

Note: insert a miniature fuse according to the technical data sheet, if specified. Recommendation: check the unit for reliable function after a short circuit 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.

Replacement of fibre optics

Remove the nut 1 and washer 2.

Carefully remove the rubber packing 3 from the connection piece.

Remove the faulty fibre optics 4.

Slide the supplied new nut 1, washer 2, packing 3 onto the replacement fibre optics.

Insert the replacement fibre optics until the end into the hole of the switching amplifier provided for this.

Press the packing 3 into the connection piece.

Secure the replacement fibre optics by tightening the nut 1.

Technical diagram of a mechanical assembly with numbered components labeled 1 to 4

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.

1 L+ 2 3 L-

AC/DC*

graph TD
    A["Component"] -->|1| B["L1"]
    A -->|3| C["N"]
    A -->|2| D["L-"]
    B --> E["Ground"]
    C --> F["Ground"]

Technical diagram of a mechanical assembly with numbered components for identification

Fonctionnement