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          General Purpose Digital Contact SensorGT series

          GT-72A

          Amplifier Unit, DIN Rail Type, NPN

          SPECIFICATIONS

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          Model

          GT-72A

          Type

          Amplifier unit

          Rating

          Power voltage

          12 to 24 VDC, Ripple (P-P) 10 % or less*1

          Environmental resistance

          Ambient temperature

          -10 to +55 °C 14 to 131 °F (No freezing)

          Relative humidity

          35 to 85 % RH (No condensation)

          Output

          NPN output

          Mounting method

          DIN rail mount*2

          Main unit/expansion unit

          Expansion unit*3

          Power consumption

          Normal

          At 12 V: 1,140 mW (95 mA) or less, At 24 V: 1,200 mW (50 mA) or less

          Power saving (Eco)

          At 12 V: 600 mW (50 mA) or less, At 24 V: 840 mW (35 mA) or less

          Display power

          Measured value display

          6-digit 7-segment LED (red)

          Other displays

          2-color 13-level bar LED display (red, green), indicators (red, green)

          Display range

          -99.999 to 999.999

          Display resolution

          1 µm 0.000039"

          Sampling rate

          2,000 times/second

          Control input

          Timing/preset/bank input

          Timing input: Non-voltage input (relay contact, solid state), input time: 2 ms or more
          Preset/Bank input: Non-voltage input (relay contact, solid state), input time: 20 ms or more

          Response time

          hsp (1.5 ms) , 5 ms, 10 ms, 100 ms, 500 ms, 1 s, 5 s

          HIGH, GO, LOW output

          NPN open collector, 50 mA max. (40 V or less), residual voltage: 1 V or less, N.O./N.C. switchable

          Major functions

          Preset, Hold, Variable hysteresis, Variable response time, Multiplier setting, Bank function (4 banks),
          Self-timing, Power save (eco) mode, Application mode, Calibration function, Core alarm

          Environmental resistance

          Vibration resistance

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

          Material

          Main body case: Polycarbonate, Key top: Polyacetal, Front sheet: Polycarbonate, Cable: PVC

          Accessories

          Instruction manual

          Weight

          Approx. 110 g (including the power cable)

          *1 If additional amplifier units are installed, the power supply voltage is 24 VDC.
          *2 Be sure to mount the DIN rail mounting amplifier on a DIN rail (i.e. the unit should be mounted on the metal DIN plate itself). For additional amplifier unit installation, be sure to use the end unit (OP-26751).
          *3 One main unit and nine expansion units (ten in total) can be additionally installed. For additional amplifier unit installation, each output current must be 20 mA or less.

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