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          Analogue Sensor ControllerRD series

          Main Unit


          [Discontinued model]

          This model has been discontinued.

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          Measurement function

          DC voltage measurement, DC current measurement

          A/D converting system

          Successive comparison

          Measurement range

          ±5 VDC, ±10 VDC, 4 to 20 mA DC (selectable)

          Display range

          -19999 to +39999

          Measurement accuracy

          ±0.03 % of F.S. (at ±5 VDC range), ±0.03 % of F.S. (at ±10 VDC range)
          ±0.05 % of F.S. (at 4 to 20 mA DC range)



          1 MΩ (for voltage input), 350 Ω (for current input)



          Number of inputs


          Sampling rate

          2,000 times/second

          Display speed

          20 times/second

          Display power

          7-segment 3-colour LED (character height: 15.24 mm)

          Over-range alarm

          FFFF is displayed

          Control input

          Synchronous, Hold-reset, Auto-zero, External setting,
          NPN or non-voltage contact signal

          Control input

          Timing input

          Hold reset input

          Auto-zero input

          External setting input


          Setting method

          4 steps x 8 programmable setups (selectable)*1


          5 x NPN (HH, HI, GO, LO, LL): 100 mA max. (40 V max.)*1

          Response time

          1 ms (when average number 1)*1

          OFF-delay time

          60 ms (ON/OFF selectable)*1

          Analogue output voltage

          Output voltage

          ±10 VDC


          100 Ω

          Response time

          1 ms (when average number 1)*2


          Control input by NPN open-collector ornon-voltage contact signal

          Major functions

          MDL, digital fi lter, auto-zero, offset, input, data processing (10 modes),
          tolerance limit storage (up to 8 sets), decimal point shift, error message display, etc.


          Power voltage

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

          Current consumption

          270 mA or less

          Environmental resistance

          Ambient temperature

          0 to +50 °C

          Relative humidity

          35 to 85 % RH (No condensation)

          Vibration resistance

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


          Approx. 700 g (excluding fi ttings)

          *1 NPN output can easily be converted to PNP output by connecting the optional OP-5148 PNP output converter.
          *2 Requires 1.5 ms every second during self-compensation sequence to prevent temperature fl uctuations.

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          Process Controls / Process Sensors