Lanbao PSS-BC40-E2 Infrared | M18 Diffuse Sensor | M12

Lanbao PSS-BC40-E2 Infrared – M18 Diffuse Sensor with M12 Connector

The Lanbao PSS-BC40-E2 Infrared M18 Diffuse Sensor with M12 Connector is an M18 cylindrical photoelectric sensor for industrial automation applications where 40 cm diffuse detection is needed with M12 quick-disconnect wiring for production lines, serviceable fixtures, and modular machine builds. The PSS-BC40-E2 series uses diffuse reflection sensing, 40 cm rated distance, Infrared light, 940 nm, NPN NO/NC or PNP NO/NC switching, and a 10-30 VDC supply, giving machine builders a compact sensor format for part presence, packaging, handling, and inspection stations.

This listing focuses on detachable M12 4-pin connector wiring, max. 0.5 ms response time, max. 20 mA consumption current, max. 200 mA load current, reverse-polarity protection, short-circuit protection, overload protection, IP67 protection, and CE certification. For neighboring options in the same Lanbao PSS family, compare Lanbao PSS-BC40 cable version, Lanbao PSS-BC10-E2 short-range sensor, and Lanbao PSS-TM-E2 through-beam sensor before choosing a sensing mode or wiring style.

The sensor output can be connected to PLC digital inputs, relay interfaces, Arduino test fixtures, or ESP32 data-collection nodes when the input circuit is wired for the correct NPN or PNP output type. During commissioning, set the single-turn potentiometer, confirm the green stability indicator and yellow output indicator, and validate detection on the real target material rather than only on a bench sample.

Technical Specifications

Parameter	Value
Series	Lanbao PSS-BC40-E2 photoelectric sensor
Sensor format	M18 cylindrical photoelectric sensor
Detection type	diffuse reflection
Rated distance	40 cm rated distance
Light source	Infrared light, 940 nm
Spot or beam reference	Diffuse beam, target dependent
Output type	NPN NO/NC or PNP NO/NC
Response time	max. 0.5 ms
Supply voltage	10-30 VDC
Consumption current	max. 20 mA
Load current	max. 200 mA
Circuit protection	Short-circuit, overload, and reverse-polarity protection
Connection	M12 4-pin connector
Adjustment	Single-turn potentiometer; white wire NO/NC mode reference
Ambient light immunity	Anti-sunlight interference up to 10,000 lux; incandescent interference up to 30,000 lux reference
Operating temperature	-25 to 55 deg C
Protection and certification	IP67, CE
Material	PC+ABS housing with PMMA filter

Board Layout & Label Guide

• Optical face – Front sensing window for diffuse reflection; keep it clean, aligned, and protected from mechanical impact.
• M18 threaded body – Mounts through brackets or panels with M18 nuts; avoid over-tightening the housing.
• Power indicator – Green LED indicates power and stable operating state during setup.
• Output indicator – Yellow LED indicates switching output, short-circuit, or overload reference state.
• Sensitivity adjuster – Single-turn potentiometer used to tune distance or switching margin on the real target.
• M12 connector – Quick-disconnect interface for field wiring; select a matching cable and pinout for NPN or PNP output.
• Brown lead – Connect to +10-30 VDC supply in typical industrial wiring.
• Blue lead – Connect to 0 VDC common and share reference with the input module.
• Black lead – Main switching output to PLC, relay interface, or protected digital input.
• White lead – NO/NC mode reference; Lanbao documentation specifies positive or floating for NO mode and negative for NC mode.
• Installation note – Use a stable bracket and keep spare M12 cables available when the sensor is installed in a high-maintenance area.

Packing List

• 1 x Lanbao PSS-BC40-E2 photoelectric sensor
• 1 x M18 mounting nut set and instruction manual reference, depending on current store bundle

FAQ

Q: What is this Lanbao PSS-BC40-E2 sensor used for?
A: It is used for industrial object detection in conveyors, packaging machines, fixtures, handling systems, and automated inspection stations.

Q: What is the main difference between this model and other PSS sensors?
A: The key difference is the sensing mode, rated distance, and wiring style. This model uses diffuse reflection, 40 cm rated distance, and M12 4-pin connector.

Q: Can it connect to a PLC?
A: Yes. Use a PLC digital input module that matches the selected NPN or PNP output and the 10-30 VDC supply system.

Q: Can I test it with Arduino or ESP32?
A: Yes for bench testing, but use proper level shifting, isolation, pull-up or pull-down wiring, and common ground rules before connecting industrial signals to a development board.

Q: Is this sensor waterproof?
A: The sensor is rated IP67, but the whole installation still depends on cable sealing, connector tightening, enclosure design, and splash direction.

Q: How do I choose NO or NC mode?
A: Lanbao documentation uses the white wire as the NO/NC mode reference. Follow the exact wiring diagram for the variant being installed.

Q: Why does the sensor switch unreliably?
A: Check supply voltage, target reflectivity, alignment, sensing distance, ambient light, cable wiring, and potentiometer setting.

Q: Should I choose cable or M12 connector?
A: Choose the M12 connector version when fast replacement and modular wiring are important.