Autonics Photo Sensor, Diffuse Reflective, 2m Sensing, Light On, PNP Output, 12-24 VDC


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IP64 rated waterproof structure was upgraded on BA2M series and Dark ON mode models were added to the line-up. By adopting multiple lenses with special optic technology, this type can detect a long distance of 2m. Also, this highly reliable type provides more user convenience with stable Light On signal light and sensitivity control function.

Main Features

● Realization of long sensing distance (2m) by special optical design
● Protection structure IP64(IEC standard)
● Built-in stability indicator
● Includes sensitivity adjustment function
● 2 color LED display



Model NPN open collector BA2M-DDT BA2M-DDTD
PNP open collector BA2M-DDT-P BA2M-DDTD-P
Sensing type Diffuse reflective
Sensing distance 2m(Non-glossy white paper 200x200mm)
Sensing target Translucent, opaque materials
Hysteresis Max. 20% at sensing distance
Response time Approx. 1ms
Power supply 12-24VDC ±10%(Ripple P-P : Max. 10%)
Current consumption Max. 15mA(Max. 30mA when the output is ON)
Light source Infrared LED(850nm)
Sensitivity adjustment Built-in the adjustment VR
Operation mode Light ON Dark ON
Control output NPN or PNP open collector output  
• Load voltage : Max. 26.4VDC   • Load current: Max. 100mA  
• Residual voltage - NPN : Max. 1V, PNP : Min. 2.5V
Protection circuit Reverse polarity protection, output short-circuit protection
Indicator • Operation indicator: red   • Stability indicator: orange(Light ON), green(Dark ON)
Insulation resistance Min. 20MΩ(at 500VDC megger)
Noise resistance ±240V the square wave noise(pulse width : 1µs) by the noise simulator
Dielectric strength 1000VAC 50/60Hz for 1minute
Vibration 1.5mm amplitude or 300m/s2 at frequency of 10 to 55Hz(for 1 min.) in each of X, Y, Z directions for 2 hours
Shock 100m/s2(approx 10G) in each of X, Y, Z directions for 3 times
Environment Ambient illumination Sunlight: Max. 11,000 lx, Incandescent lamp : Max. 3,000 Ix(Receiving illumination)
Ambient temperature -20 to 55°C, storage : -25 to 70°C
Ambient humidity 35 to 85%RH, storage : 35 to 85%RH
Protection IP64(IEC standard)
Material Case: ABS, Sensing part: PC, Indicator: PC, VR: IXEF
Cable Ø3, 3-wire, Length : 2m
(AWG24, Core diameter: 0.08mm, Nunber of cores: 40, Insulator out diameter: Ø1)
Accessory VR adjustment driver
Approval CE
Unit weight Approx. 50g
Document download
† The temperature or humidity mentioned in Environment indicates a non freezing or condensation environment.



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