BW Series


  • Long sensing distance up to 7M
  • 44 types of products (Optical axis: 20./40mm, Sensing hight: 140~940mm/120~920mm)
  • Increased sensing stability by minimizing the non sensing area
  • Includes self-diagnosis function, mutual interference protection function, external diagnosis function
  • Protection structure IP65
  • Easy identification of the side, front and long distance by the indicator of high illumination, twin motions
Model BW20 (P) BW40 (P)
Sensing type Through-beam
Sensing distance 0.1 to 7m
Sensing target Opaque materials of min. Ø 30mm Opaque materials of min. Ø 50mm
Optical axis pitch 20mm 40mm
Number of optical axes 8 to 48pcs 4 to 24pcs
Sensing width 140 to 940mm 120 to 920mm
Pointing angle

Width ±5º (At over 3m sensing distance)

Power supply 12-24VDC ± 10% (Ripple:P-P: Max. 10%)
Reverse power protection circuit Built in
Current consumption Emitter: Max, 80mA, Receiver: Max. 80mA
Control output

NPN open collector output - Load voltage: Max. 30VDC,

                                               Load  current: Max. 100mA,

                                               Residual voltage:) Max. 1V

PNP open collector putput - Lead curremt: Max. 100mA,

                                               Output voltage: Min.

                                               (Power supply 2.5)V 

Operation mode Light ON only
Short-circuit protection Built-in
Response time Min. 12ms
Light source Internet LED (modulation)
Synchronization type Synchronous method by master/slave function

Ambient light monitoring, Emitter/Receiver light circuit  monitoring,

Output circuit monitoring 

Interference protection Interface protection by master/slave function
Environment Ambient illumination Sunlight: Max. 10000↓x
Ambient temperature -10 to +55ºC, Storage: -20 to +60ºC
Ambient humidity 35 to 85%RH, Storage: 35 to 85%RH
Noise strength

The square wave noise by the noise simulator 

(Voltage:±240V, Period: 10ms, Pulse width: 1μs)

Dielectric strength 1000VAC 50/60Hz for 1 minute
Insulation resistance Min. 20MΩ (at 500VDC megger)
Vibration 1.5mm amplitude at frequency of 10 to 55Hz in each of X, Y, Z directions for 2 hours
Shock 500m/s² (50G) in X, Y, Z directions for 3 times
Protection IP65 (IEC standard)
Material *Case: Aluminium *Cover, Lnes: Acril
Accessory Bracket A:4EA, Bracket B: 4EA, Bolt 8EA
Unit weight Approx. 1.4kg (For 48 optical axes)

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