WS1A/WS1V Free Range Type Potentiometer Converter

Brand: Yokogawa Electric Corporation

The WS1A/WS1V is a compact, front terminal connection type potentiometer converter that is used in combination with an instrument such as a control valve which outputs the change in resistance of potentiometer. 

It converts the change in resistance into isolated DC current or DC voltage signals.
Features
  • Input range setting, burnout setting, I/O monitoring, and zero/span adjustment can be made using the optional parameter setting tool (VJ77) or handy terminal (JHT200)
  • Dual output and 2,000 Vac withstand voltage specifications are available

Specifications

Accuracy

  • ± 0.1 % of Span
  • Dual Output: Relative Error within ± 0.2 % between Output 1 & 2

Burn-Out

  • 60 seconds or Less - Burn-Out Time
  • Down
  • Off
  • Up

Consumption

  • 3 VA at 100 Vac (WS1V) - Power Consumption
  • 4 VA at 100 Vac (WS1A) - Power Consumption
  • 4.5 VA at 200 Vac (WS1V) - Power Consumption
  • 5.5 VA at 200 Vac (WS1A) - Power Consumption
  • 50 mA at 24 Vdc (WS1V) - Current Consumption
  • 65 mA at 24 Vdc (WS1A) - Current Consumption

Current

  • 0.1 µA - Burn-Out Detection Current

Electrical Connectors

  • M4 Screw Terminal

Enclosure, Body Material

  • ABS Resin

Humidity

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

Insulation Resistance

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

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 mV-20 V - Span (DC)
  • -10-10 Vdc
  • 1-24 mA DC - Span (DC)

Power Supply

  • 100-240 Vac (-15 %, 10 %) 50/60 Hz (AC Drive)
  • 24 Vdc ± 10 % (DC Drive)

Power Supply Effect

  • ± 0.1 % of Span or Less for Fluctuation within the Operating Range of Power Supply Voltage

Resistance

  • 100 to 2,000 ohms - Total Resistance
  • 150 ohms - Allowable Leadwire Resistance
  • 2 to 250 kiloohms or more - Allowable Load Resistance for DC Voltage
  • 750 to 15,000 ohms or Less - Allowable Load Resistance for DC Current
  • 80 to 2,000 ohms - Measuring Span

Response Time

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

Span & Zero Adjustments

  • ± 10 % of Span - Output Adjustment
  • ± 5 % of Span for -10-10 Vdc Output

Supply Voltage

  • 1,500 Vac/minute - DC & AC Drive Withstand Voltage
  • 500 Vac/minute between Output & Power Supply - AC Drive Withstand Voltage

Temperature Effect

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

Zero Offset

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