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          Expandable Area SensorPJ series


          Base Unit

          [Discontinued model]

          This model has been discontinued.

          Recommended Replaceable Products
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          Base unit

          No. of beam axes


          Beam axis spacing

          40 mm 1.57"

          Maximum optical axis number

          16 (PJ-50A × 1 + PJ-55A × 6)

          Detection area

          120 mm 4.72" (4 optical axes) to 600 mm 23.62" (16 optical axes)

          Detecting distance

          5 m 16.40'

          Detectable object

          Opaque material with a diameter of 50 mm or more

          Light source

          Infrared LED

          Indicator lamp

          Output (PJ-50R) and power (PJ-50T) : red LED, stable operation (PJ-50R) : green LED

          Response time

          15 ms or less


          Control output

          NPN open collector 100 mA max. (40 V max.), Residual voltage : 1 V max.

          Control output

          Operation mode

          LIGHT-ON/DARK-ON (switch-selectable)

          Noise resistance (power supply line)

          350 V, pulse width : 1 µs (by way of a noise simulator)

          Protection circuit

          Reversed polarity, overcurrent protection, surge absorber


          Power voltage

          12 to 24 VDC ±10 %, Ripple (P-P) 10 % or less

          Current consumption

          90 mA (total of T, R)*1

          Environmental resistance

          Enclosure rating


          Ambient light

          Incandescent lamp: 3,500 lux or less, sunlight: 12,000 lux or less

          Ambient temperature

          -20 to +50 °C -4 to 122 °F (No freezing)

          Relative humidity

          35 to 85 % RH (No condensation)

          Vibration resistance

          10 to 55 Hz, Double amplitude 1.5 mm 0.06", 2 hours in each of the X, Y, and Z directions

          Shock resistance

          100 m/s2, 3 times in each of the X, Y, and Z directions


          Housing : Glass-fi bre reinforced plastic, Lens cover : PFA


          Approx. 785 g*2

          *1 This is the value with a power supply voltage of 24 V. (80 mA for the PJ-50A with a power supply voltage of 12 V.)
          *2 This is the weight including the 5 m cord.

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