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WRUA/WRUV Cryogenic Temperature Converter
Brand: Yokogawa
The WRUA/WRUV is a compact, front terminal connection type cryogenic temperature converter that is used in combination with a four-wire cryogenic RTD (Yokogawa J263*B) and converts high-precision measured values of wide temperature ranges into isolated DC current or DC voltage signals.
Features- Dual output specifications are available
- For the fahrenheit display, specify the option "/DF"
Specifications
Brand
Accuracy
- ± 0.1% of Span or ± 0.3° C (± 0.54° F) whichever is greater (Including Linearization Error)
- Relative Error within ± 0.2% between Output-1 & 2 - Dual Output
Burn-Out
- 60 seconds or less - Burn-out Time
- Down
- Off
- Up
Consumption
- 100 mA at 24 Vdc (WRUA) - Current Consumption
- 11 VA at 100 Vac (WRUA) - Power Consumption
- 7 VA at 100 Vac (WRUV) - Power Consumption
- 70 mA at 24 Vdc (WRUV) - Current Consumption
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 24 mA
- 10 mV-20 V - Span (DC)
- -10-10 Vdc
- 1-24 mA - Span (DC)
Power Supply
- 24 Vdc ± 10% (DC Drive)
- 85-264 Vac, 47 to 63 Hz (AC Drive)
Power Supply Effect
- ± 0.1% of Span or 0.3° C (0.54° F) or less - Power Supply Voltage Fluctuations
Resistance
- 1 MegaOhm - Input Resistance During Power On
- 2 to 250 KiloOhms or more - Allowable Load Resistance for DC Voltage Output
- 3 KiloOhms - Input Resistance During Power Off
- 50 ohms or less Per Wire - Allowable Leadwire Resistance
- 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 for AC Drive - withstand Voltage
- 500 Vac/minute between Output & Power Supply - DC Drive withstand Voltage
Temperature Effect
- ± 0.2% of Span or 0.6° C (1.08° F) or less for a Change of 10° C (18° F) - Ambient Temperature Change
Zero Offset
- 0 to 200% - Zero Elevation (Current Signal)
- -100 to 200% - Zero Elevation (Voltage Signal)
