A. Product Overview

The Autonics BPS3M-TDTL is a through beam photoelectric sensor from the Autonics BPS Series. It consists of an infrared light emitter and receiver positioned opposite each other. The sensor provides a sensing distance of up to 3 meters while maintaining a slim and compact body suitable for installations where mounting space is limited.

The BPS3M-TDTL is designed to detect opaque objects with a minimum diameter of 5 mm. It uses an 850 nm infrared LED as its light source and offers a response time of 1 ms or less, allowing it to detect objects moving at relatively high speeds.

This particular BPS3M-TDTL model provides an NPN open collector control output and operates in Light ON mode. Its IP67 rated enclosure provides protection against dust and water exposure in demanding industrial environments.

Key Features

• Brand: Autonics

• Model: BPS3M-TDTL

• Series: BPS

• Sensor type: Through beam photoelectric sensor

• Sensing distance: Up to 3 meters

• Minimum sensing object: Opaque object of 5 mm diameter or larger

• Light source: Infrared LED, 850 nm

• Power supply: 12 to 24 VDC

• Output: NPN open collector

• Operation mode: Light ON

• Response time: Maximum 1 ms

• Connection: Cable type

• Cable length: 2 meters

• Protection rating: IP67

• Operating temperature: -25°C to 65°C

• Housing material: Polycarbonate

• Emitter power indicator: Red LED

• Receiver operation indicator: Red LED

B. Working Principle

The Autonics BPS3M-TDTL through beam photoelectric sensor works using a separate infrared emitter and receiver.

The emitter continuously sends an infrared light beam toward the receiver. Under normal conditions, the receiver detects this infrared beam.

When an opaque object passes between the emitter and receiver, the object interrupts or blocks the infrared beam. The receiver detects this change and switches its electrical output accordingly.

Because the emitter and receiver are positioned separately and directly face each other, through beam sensors can provide stable object detection over comparatively long distances.

The BPS3M-TDTL provides a sensing distance of up to 3 meters and can detect opaque objects with a minimum diameter of approximately 5 mm.

Its fast response time of up to 1 ms makes it suitable for applications where objects move quickly through the sensing area.

C. Why Is the Autonics BPS3M-TDTL Used?

The Autonics BPS3M-TDTL is mainly used when machines or automation systems need reliable non-contact object detection.

Since no physical contact with the object is required, the sensor can repeatedly detect products, components, packages, machine parts, and other opaque objects without mechanical wear.

Common reasons for using the BPS3M-TDTL include:

1. Object Detection

It can detect whether an object is present or absent within a machine or production process.

2. Conveyor Monitoring

The sensor can be installed across a conveyor to detect products moving through a production or packaging line.

3. Product Counting

The output signal can be connected to a PLC, counter, or industrial control system to count objects passing through the sensing beam.

4. Position Detection

It can help determine whether a component or product has reached a particular position.

5. Machine Automation

The sensor output can be used as an input signal for PLCs and other control systems to start, stop, count, reject, or perform another machine operation.

6. High Speed Detection

With a response time of up to 1 ms, the BPS3M-TDTL is suitable for applications where objects pass the sensor quickly.

7. Limited Installation Space

Its slim flat body makes it suitable for installations where conventional photoelectric sensors may be too large.

8. Industrial Environments

The IP67 protection rating helps protect the sensor from dust and water exposure in industrial installations.

D. Suitable Buyers

The Autonics BPS3M-TDTL Through Beam Photoelectric Sensor is suitable for buyers involved in industrial automation, machine manufacturing, production systems, and material handling.

Typical buyers include:

• Industrial automation companies

• Machine manufacturers

• Control panel manufacturers

• System integrators

• Packaging machine manufacturers

• Conveyor manufacturers

• Material handling companies

• Factory automation engineers

• PLC automation companies

• OEM machine builders

• Production plants

• Assembly line operators

• Food packaging machinery manufacturers

• Pharmaceutical machinery manufacturers

• Electronics manufacturing companies

• Warehouse automation companies

• Maintenance departments

• Electrical and instrumentation contractors

It is particularly suitable for applications requiring a 3 meter through beam sensor, NPN photoelectric sensor, compact photo sensor, or fast object detection sensor.

FAQ

1. What is the Autonics BPS3M-TDTL?

The Autonics BPS3M-TDTL is a compact through beam photoelectric sensor designed for non-contact object detection in industrial automation applications.

2. What is the sensing distance of the BPS3M-TDTL?

The sensor has a maximum sensing distance of 3 meters.

3. Is the BPS3M-TDTL a through beam sensor?

Yes. The BPS3M-TDTL uses the through beam sensing method, with a separate infrared emitter and receiver.

4. What is the output of the Autonics BPS3M-TDTL?

The BPS3M-TDTL provides an NPN open collector output.

5. Is BPS3M-TDTL NPN or PNP?

The BPS3M-TDTL is an NPN output model. A separate PNP variant is available within the BPS series.

6. What is the operating mode of BPS3M-TDTL?

The BPS3M-TDTL operates in Light ON mode.

7. What power supply does BPS3M-TDTL require?

It operates from a 12 to 24 VDC power supply.

8. What type of objects can BPS3M-TDTL detect?

It is designed to detect opaque materials with a minimum sensing target of approximately 5 mm diameter.

9. What light source does the sensor use?

The BPS3M-TDTL uses an 850 nm infrared LED.

10. What is the response time?

The response time is maximum 1 ms, making it suitable for relatively fast industrial detection applications.

11. Is the Autonics BPS3M-TDTL waterproof?

The sensor has an IP67 protection rating, providing protection against dust and water exposure according to the applicable IP protection standard.

12. What is the cable length?

The BPS3M-TDTL is supplied as a cable type sensor with approximately 2 meters of cable.