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WM1A/WM1V Free Range Type Isolator
Brand: Yokogawa Electric Corporation
The WM1A/WM1V is a compact, front terminal connection type isolator that converts DC mV signals into isolated DC current or DC voltage signals.
Features- I/O range setting, zero/span adjustment, burn-out setting and I/O monitoring 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 or 10 μV, whichever is greater
- Within ± 0.2 % Relative Error between Output 1 & 2 - Dual Output
Burn-Out
- 60 seconds or Less - Burn-Out Time
- Down
- Off
- Up
Consumption
- 3 VA at 100 Vac - Power Consumption (WM1V)
- 4 VA at 100 Vac - Power Consumption (WM1A)
- 4.5 VA at 200 Vac - Power Consumption (WM1V)
- 5.5 VA at 200 Vac - Power Consumption (WM1A)
- 50 mA at 24 Vdc - Current Consumption (WM1V)
- 65 mA at 24 Vdc - Current Consumption (WM1A)
Current
- 0.1 µA - Burn-Out Detection Current
Electrical Connectors
- M4 Screw Terminals
Enclosure, Body Material
- ABS Resin
Humidity
- 5 to 90 % Relative Humidity, Non-Condensing - Operating Humidity
Input
- -0.5 to 4 Vdc - Max.
- 3 mV Dc or more - Measuring Span
Input Signal
- -100 to 150 mVdc - Potential Difference
Insulation Resistance
- 100 megaohms or more at 500 Vdc
Measuring Span
- 3 mVdc or more
Mounting
- DIN Rail Mounting
- M4 Screw x 4
- Rack-Mounted
- Wall Mounted
Operating Temperature
- 0° to 50° C (32° to 122° F)
Output
- 0 to 24 mA DC
- 10 mV-20 V - Span (DC)
- -10-10 Vdc
- 1-24 mA DC - Span
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 Specification
Resistance
- 1 Kiloohm or Less - Allowable Leadwire Resistance
- 1 Megaohm During Power On - Input Resistance
- 10 kiloohms During Power Off - Input Resistance
- 2 to 250 kiloohms or more - Allowable Load Resistance for DC Voltage Output
- 750 to 15,000 ohms or Less - Allowable Load Resistance for DC Current Output
Response Time
- 200 milliseconds, 63 % Response (10 to 90 %)
Span & Zero Adjustments
- ± 1 % - Input Adjustment
- ± 10 % - Output Adjustment
Supply Voltage
- 1,500 Vac/minute - Withstand Voltage for AC & DC Drive
- 2,000 Vac - Withstand Voltage
- 500 Vac/minute - Withstand Voltage for DC Drive
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 (Output Current Signal)
- -100 to 200 % - Zero Elevation (Output Voltage Signal)
- Within ± 300 % of the Measuring Span - Zero Elevation
