Yokogawa mV Input/Variable Software Computing Unit, FX3
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FX3 mV Input/Variable Software Computing Unit

Brand: Yokogawa Electric Corporation
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Yokogawa mV Input/Variable Software Computing Unit, FX3
The JUXTA FX3 Series, Computing unit (mV Input or Variable Software Type) receives mV input signals, applies various computing functions to them, and outputs isolated DC current or DC voltage signals to controllers or recorders. 

The computation parameters, zero points, and spans can be set and modified using a Handy Terminal (JHT200).

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Specifications

Brand

Accuracy

  • (± 5.0 % of Set Value) ± 1 second - Accuracy of Moving Average & Time Constant, Dead Time, Velocity Computation Setting
  • ± 0.2 % of Span

Computation Cycle

  • 100 milliseconds

Consumption

  • 56 mA at 24 Vdc - Current Consumption (FX3V)
  • 78 mA at 24 Vdc - Current Consumption (FX3A)

Current

  • 1-24 mA DC - Span

Dead Time

  • 0 to 7,990 seconds with 4 Significant Digits - Setting Range of Moving Average Time & Velocity Computation Time

Electrical Connectors

  • M4 Screw Terminal

Enclosure, Body Material

  • ABS Resin

Function

  • Adder/Subtractor
  • Analog Memory (with second Input for Holding)
  • Bottom Holder (with second Input for Holding)
  • Dead Time Unit
  • Divider
  • First Order Lead Unit
  • First Order Lug Unit
  • High Selector
  • Limiter
  • Linearizer
  • Low Selector
  • Moving Average Unit
  • Multiplier
  • Peak Holder (with second Input for Holding)
  • Pressure Compensator
  • Program Setter
  • Programmable Unit (with Contact Input)
  • Temperature Compensator
  • Velocity Limiter
  • Velocity Unit

Humidity

  • 5 to 90 % Relative Humidity, Non-Condensing - Operating Humidity

Input

  • -0.5 to 4 Vdc - Max.

Input Signal

  • -10 to 50 mV, Span is 10 mV or more
  • -100 to 1,250 mV, Span is 250 mV or more
  • -2 to 10 mV, Span is 3 mV of More
  • -50 to 250 mV, Span is 50 mV or more

Insulation Resistance

  • 100 megaohms or more at 500 Vdc between Input & Output, Output & Power Supply, & Input & Power Supply

Mounting

  • DIN Rail Mounting
  • Rack-Mounted
  • Wall Mounted

Operating Temperature

  • 0° to 50° C (32° to 122° F)

Output

  • 0 to 100 mVdc
  • 0 to 24 mA DC
  • -10 to 10 Vdc

Power Supply

  • 24 Vdc ± 10 %

Power Supply Effect

  • ± 0.2 % or Less of Span for Fluctuation of 24 Vdc ± 10 % - Effect of Power Supply Voltage Fluctuations

Resistance

  • 1 Megaohm - Input Resistance
  • 2 to 250 kiloohms Min. - Allowable Load Resistance for DC Voltage Output
  • 3 kiloohms or more During Power Off - Input Resistance
  • 750 to 15,000 ohms or Less - Allowable Load Resistance for DC Current Output

Response Time

  • 500 milliseconds, 63 % Response (10 to 90 %)

Span & Zero Adjustments

  • ± 1 % of Span - Input & Output Adjustment Function

Supply Voltage

  • 1,500 Vac/minute between (Input & Output) & Power Supply - Withstand Voltage
  • 10 mV-20 V - Span (DC)
  • 500 Vac/minute between Output & Power Supply - Withstand Voltage

Temperature Effect

  • ± 0.2 % of Span or Less for a Temperature Change of 10° C (18° F) - Effect of Ambient Temperature Change

Time Constant

  • 0 to 799.0 seconds, Min. Unit is 0.1 second

Zero Offset

  • 0 to 200 % - Zero Elevation (Current Signal)
  • -100 to 200 % - Zero Elevation (Voltage Signal)

Documentation

Data Sheets

Product Manuals

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