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          Analog Sensor ControllerRD series

          RD-50EK

          Main Unit

          [Discontinued model]

          This model has been discontinued.

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          SPECIFICATIONS

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          Model

          RD-50EK

          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 (switchable)

          Display range

          -19,999 to +39,999

          Measurement accuracy

          ±0.03 % of F.S. (±5 V range), ±0.03 % of F.S. (±10 V range), ±0.05 % of F.S. (4 to 20 mA range) * F.S. is 20 mA.

          Input

          Impedance

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

          System

          Single-ended

          Number of inputs

          2

          Sampling rate

          2,000 times/second

          Display speed

          20 times/second

          Display power

          7-segment 3-color LED (character height: 15.24 mm 0.60")

          Over-range alarm

          FFFF is displayed

          Control input

          NPN open-collector or non-voltage contact signal

          Control input

          Timing input

          Hold reset input

          Auto-zero input

          External setting input

          Control output

          Setting method

          4 steps x 8 programmable setups (selectable)

          Signal

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

          Response time

          1 ms (at the highest speed)*1

          OFF-delay time

          60 ms (ON/OFF selectable)

          Analog output voltage

          Output voltage

          ±10 VDC

          Impedance

          100 Ω

          Response time

          1 ms (at the highest speed)*1

          Interface

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

          Major functions

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

          Rating

          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 32 to 122 °F

          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

          Weight

          Approx. 700 g (excluding fi ttings)

          *1 Calibration is performed once per second, and when it is, this becomes 1.5 ms.

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          Process Controls / Process Sensors