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          7. PID Temperature Adjustment Unit (Multi-input 4-channel)

          Programmable ControllerKV-8000 series

          PID Temperature Adjustment Unit (Multi-input 4-channel)



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          Multi-input PID temperature control unit

          Number of temperature input points

          4 ch


          Thermocouple/Platinum temperature measuring resistor*1

          Temperature sensor types

          Thermocouple: K, J, T, E, R, B, N, S, W5Re/W26Re
          Platinum temperature measuring resistor: JPt100, Pt100

          Indicated accuracy

          ±0.3 % of F.S. ±1 digit (+25 °C), ±0.7 % of F.S. ±1 digit (0 to +50 °C)

          Cold junction correction precision

          ±1 °C

          Sampling period

          125 ms/ch (500 ms/4 ch)

          Control period

          1 to 100 sec.

          Operating mode

          PID control (with auto-tuning and 3 mode stabiliser function installed)
          Heat/cool PID control (with auto-tuning and 3 mode stabiliser function installed)
          ON/OFF control

          Tuning mode

          PID auto-tuning mode

          Control output

          transistor (sink)

          Alarm output

          transistor (sink)*2

          Alarm mode

          Absolute value upper limit, absolute value lower limit, deviation upper limit, deviation lower limit,
          deviation upper limit unexcited, deviation lower limit unexcited, deviation upper and lower limits,
          within upper and lower limit deviation, absolute value upper limit unexcited, absolute value lower limit unexcited*3


          Rated load

          30 VDC 100 mA or less

          Leak current at OFF

          100 µA or less

          Residual voltage at ON

          1.5 V or less

          Current sensor (CT) input

          4 ch*4

          Current measurement precision

          Larger of ±5 % of an input value and ±2 A of an input value

          Insulation mode

          Between inputs and outputs: Photocoupler and transformer insulation,
          Between input channels: Photocoupler and transformer insulation

          Memory element

          EEPROM rewritable one million times

          Other functions

          Heater wire breaking alarm, control loop wire breaking alarm, measured value bias,
          output limit, slope setup, manual reset, output control when an error occurs

          Internal current consumption

          210 mA or less


          Approx. 270 g

          *1 Can be set for each channel.
          *2 Because the alarm output is used as cooling control output when heat/cool control is used, the alarm output cannot be used as an alarm output function.
          *3 Standby operation ON/OFF can be selected in each alarm mode.
          *4 Use a KEYENCE sensor (OP-6694). (Sold separately.)

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