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          5. Separate Amplifier Proximity Sensor
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          7. Amplifier Unit, Expansion Unit, NPN

          Separate Amplifier Proximity SensorES series

          Amplifier Unit, Expansion Unit, NPN



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          One-line expansion system



          Operation mode

          N.O./N.C. switch-selectable

          Timer function

          10-ms delay / timer OFF switchable*2




          Control output

          NPN open collector 100 mA max. 40 V, residual voltage 1 V max.

          Disconnection alarm output


          Response time

          1 ms max.

          Temperature characteristics

          Within ±8% of detecting distance at +23°C 73.4°F when within 0 to 50°C 32 to 122°F temperature range

          Sensitivity adjustment

          25-turn trimmer

          Protection circuit

          Reverse power connection protection, output overcurrent protection, output surge protection


          Power voltage

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

          Current/power consumption

          25 mA max.

          Environmental resistance

          Ambient temperature

          0 to +50 °C 32 to 122 °F*4

          Relative humidity

          35 to 85 % RH (No condensation)


          Approx. 35 g (including nuts and 2-m 9.8' cable)

          *1 The ES-M1(P)/M2(P) cannot be connected to the EH-422, 430, 440 or 290.
          *2 During N.O. operating configuration, the off delay timer is 10 ms. During N.C., the on delay timer is 10 ms.
          *3 Broken connection warning output is not available on the ES-M2 (P).
          *4 The ambient temperature changes according to the following conditions when expansion units are added. When adding units, always attach them to a DIN rail (metal plate) and set the output current to 20 mA or less.
          1 to 10 expansion units: 0 to 50˚C 32 to 122˚F
          11 to 16 expansion units: 0 to 45˚C 32 to 113˚F

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