PR12-TM10DPO, LANBAO, light barrier, receiver, Ø M12, Sn 10 m, PNP, NO, cable 2 m PVC

PR12-TM10DPO – Through-beam light barrier receiver

PR12-TM10DPO (LANBAO) is a through-beam light barrier receiver in a Ø M12. design. The emitter and receiver face each other; the sensor switches when an object interrupts the beam between them. Of all optical principles, it offers the longest range and highest reliability regardless of the colour and surface of the object.

Key features

• Sensing distance 10 m.
• PNP output, NO contact – normally open – connects to a PLC digital input or a relay coil.
• Supply 10–30 V DC.
• Connection: cable 2 m PVC.
• Operating temperature up to 15 / +55 °C.

Technical specifications PR12-TM10DPO

Wiring of PR12-TM10DPO by wire colours

The colour coding complies with IEC 60947-5-2. Always compare the actual pin and wire assignment with the diagram in the sensor datasheet (Downloads tab).

Three-wire cable wiring according to IEC 60947-5-2.

The same sensor with a different connection

• PR12-TM10DPO-E2 – the same sensor with a connector M12/4 pins

The cable version is cheaper, but replacing the sensor requires pulling the entire cable. The connector variant can be replaced in a minute and is suitable where there is no time for downtime.

Typical applications

• detection over long distances across a conveyor or hall
• monitoring the passage of pallets, cartons and crates
• counting objects regardless of their colour and gloss
• detection of dark, matt and transparent objects
• monitoring entry into the machine area and vehicle entrances

How to choose and what to watch out for

• PNP output (switches plus) matches the standard PLC digital inputs used in Europe. For NPN-type inputs, choose the corresponding variant with the same sensing distance.
• NO contact (normally open): the output is activated when an object is detected. If you need the opposite logic, an NC variant is available.
• Cable outlet: the cheaper variant, but replacing the sensor requires pulling the entire cable. If you need quick replacement, choose a model with a connector (suffix -E1 for M8, -E2 for M12).
• Operating temperature up to 15 / +55 °C applies to continuous operation. Short-term exceedance shortens service life and may permanently degrade the sensing distance.

PNP or NPN – and what happens if you mix them up

PNP switches the positive pole, so it sends plus to the PLC input. It is the European standard and matches standard digital inputs. NPN switches minus and is used mainly in Asian equipment. If mixed up, the sensor either does not switch at all or reports a permanently active state — it usually will not be damaged, but it will not work.

This model has a PNPoutput. If you need NPN, a variant with the same sensing distance is available — contact us and we will recommend the code.

NO or NC – and why it is not just a matter of convenience

NO (normally open) is an output that is active on detection. NC (normally closed) is active at rest and opens on detection. The difference is a safety one: with NC, a broken wire causes the same reaction as a detection, so the fault shows up immediately. With NO, a broken cable remains unnoticed until someone tries to switch.

This model has the contact NO – normally open.

Similar models in the same series

• PR12-TM10DPC
• PR12-TM10DPC-E2
• PR12-TM10DPO-E2

Frequently asked questions

Does PR12-TM10DPO have a PNP or NPN output?

PR12-TM10DPO has a PNP output with an NO contact – normally open. It therefore matches the standard PLC digital inputs used in Europe.

What is the sensing distance of PR12-TM10DPO?

The sensing distance (Sn) is 10 m.

How is PR12-TM10DPO connected?

PR12-TM10DPO is supplied with the connection: cable 2 m PVC. The cable is part of the sensor; the other end is free for connection to a terminal block.

How is PR12-TM10DPO wired by wire colours?

Brown wire to supply plus, blue to minus, and black is the signal output going to the PLC input or relay coil. The coding complies with IEC 60947-5-2.

Do I need to buy the emitter and receiver separately?

Yes. A through-beam barrier consists of two parts — the emitter and receiver have separate order codes, and both must be supplied with power and mounted facing each other on the beam axis.

A detailed datasheet with a dimension drawing and wiring diagram can be found in the tab Downloads.