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WA1A/WA1V Distributor
Brand: Yokogawa Electric Corporation
The WA1A/WA1V is a compact, front terminal connection type distributor that is used in combination with a two-wire transmitter, and converts the transmitter's 4 to 20 mA DC signals into isolated DC current or DC voltage signals.
Features- Dual output and 2,000 VAC withstand voltage specifications are available upon requests.
Specifications
Accuracy
- ± 0.1 % of Span
- Relative Error between Output 1 & 2 is within ± 0.2 % - Dual Output
Consumption
- 110 mA at 24 Vdc - Current Consumption (WA1A-Ax-1)
- 12 VA at 100 Vac - Power Consumption (WA1A-Ax-2)
- 75 mA at 24 Vdc - Current Consumption (WA1V-Ax-1)
- 8 VA at 100 Vac - Power Consumption (WA1V-Ax-2)
Current
- 25-35 mA - Current Limiter for Transmitter Power Supply
Electrical Connectors
- M4 Screw Terminals
Enclosure, Body Material
- ABS Resin
Humidity
- 5 to 90 % Relative Humidity, Non-Condensing
Input
- 40 mA DC - Max.
Input Signal
- 4-20 mA DC Signal from 2-Wire Transmitter
Insulation Resistance
- 100 megaohms or more at 500 Vdc between Input & Output, Output & Power Supply, Power Supply & Ground, & Ground & Input
Mounting
- DIN Rail Mounting
- M4 Screw x 4 - Mounting Screw
- Rack-Mounting
- Wall Mounting
Operating Temperature
- 0° to 50° C (32° to 122° F)
Output
- 0 to 24 mA DC
- 10 mV to 20 V - Span (DC)
- -10-10 Vdc
- 1-24 mA DC - Span
Power Supply
- 24 Vdc ± 10 %
- 26.5 ± 1.5 Vdc - Transmitter Power Supply
- 85-264 Vac, 47 to 63 Hz
Power Supply Effect
- ± 0.1 % of Span or Less for Fluctuation within the Operating Range of Power Supply Voltage Specification
Resistance
- 2 to 250 kiloohms or more - DC Voltage Allowable Load Resistance
- 250 ohms - Input Resistance
- 750 to 15,000 ohms or Less - DC Current Allowable Load Resistance
Response Time
- 200 milliseconds, 63 % Response (10 to 90 %)
Span & Zero Adjustments
- -1 to 1 % - Zero Adjustment
- 95 to 105 % - Span Adjustment
Supply Voltage
- 1,500 Vac/minute between Input & (Output & Power Supply) - DC Drive Withstand Voltage
- 1,500 Vac/minute between Input & Output, Output & Power Supply, Power Supply & Ground, & Ground & Input - AC Drive Withstand Voltage
- 500 Vac/minute between Output & Power Supply - DC 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)
