BH Series

Front/Side Mount Photoelectric Sensors

The BH series photoelectric sensors are capable of front mounting using M18 nut and fastening cap or side mounting using M3 bolt screw and nuts. The flexible installation options allow easy application in various industrial settings. The sensors can produce individual or simultaneous NPN and PNP open collector outputs by simple wire configuration. The IP67 protection structure provides stable and error-free operation even in wet or dusty environments.

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Description

Features

  • Front mounting (M18 nut) or side mounting (M3 screws)
  • Simultaneous NPN/PNP open collector output
  • Sensing distance
    • Through-beam type : 20m
    • Retroreflective type : 4m
    • Diffuse reflective type : 1m, 300mm
  • Compact size : W14mm×H34.5mm×L28mm
  • Mirror Surface Rejection (MSR) function allows stable detection of highly reflective targets (retroreflective type only)
  • Sensitivity adjuster included
  • Light ON/Dark ON operation mode switch
  • Operation indicator (red LED) and stability indicator (green LED)
  • Built-in reverse polarity protection circuit and output overcurrent (short-circuit) protection circuit
  • Mutual interference prevention function (except through-beam type)
  • IP67 protection structure (IEC standard) (patent) *
Front/Side Mounting
Simultaneous NPN/PNP Open Collector Output
Long Sensing Distance
Compact Size
Mirror Surface Rejection (MSR)
Simple Operation Mode Switching
Protection Rating

Details

Front/Side Mounting Sensors

The BH series photoelectric sensors are capable of both front mounting (using M18 nut) and Side mounting (using M3 screws) for flexible installation in diverse applications.

Front Mounting : M18 Nut, Fastening Cap, Side Mounting : M3 Nut, M3 Bolt (22mm)

Simultaneous NPN/PNP Open Collector Output

Depending on wire configuration, the sensors can produce individual NPN or PNP outputs Or simultaneous NPN and PNP outputs

(Black) NPN Output, (White) PNP Output

Long Sensing Distance Up to 20m

The through-beam type models feature long sensing distances up to 20m.

* Sensing distance : diffuse reflective type 1m, 300mm/retroreflective type 4m, Through-beam Type (BH20M) : Up to 20m

Compact Size

The compact sized sensors (W14×H34.5×L28mm) can be easily installed in tight or limited spaces.

W14×H34.5×L28mm

Mirror Surface Rejection (MSR) Function (Retroreflective Type)

The retroreflective type models feature built-in polarizing filters allowing the units to only receive light from reflectors.
This function allows stable detection of highly reflective targets including metals, mirrors, etc.

The Working Principle of Mirror Surface Rejection (MSR) Function : The light passed through the polarizing filter on the emitter will become horizontal. The light reflected on the retroreflective mirror will turn 90˚ and the vertical light will Be received by receiver through vertical polarizing filter. The light reflected from reflective targets will remain horizontal, and thus will not be received by the receiver with the vertical polarizing filter.

 

Sensitivity Adjuster Included

The attached sensitivity adjuster allows users to easily adjust the sensitivity without repositioning the sensors.

Sensitivity Adjuster

Various Status Indicators

Operation indicator (red LED) and stability indicator (green LED) allows users To quickly identify the operation status of the sensors.

Operation Indicator (red LED), Stability Indicator (green LED)

IP67 Protection Structure

IP67 protection structure allows stable and error-free operation even in wet or dusty environments.

IP67 Protection Structure

Applications

  • Beverage Can Transport Conveyors

    Front/side mounting photoelectric sensors are used to detect aluminum cans in beverage packaging lines.

  • Automatic Warehouse Racks

    Front/side mounting photoelectric sensors are used on warehouse racks to detect entry and exit of trays.

Other Model