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WT5A/V Free Range Type Thermocouple Converter
Brand: Yokogawa Electric Corporation
The WT5A / WT5V is a compact, front terminal connection type signal conditioner that is connected to an IEC/JIS-standard thermocouple (TC), such as a Type K, T, E, J, R, S, B or N thermocouples to convert temperature signals into isolated DC current or DC voltage signals.
Features- Selection of input type, input range setting, burnout setting, output adjustment, I/O monitoring, and loop back test can be made using the optional parameter setting tool (VJ77) or handy terminal (JHT200)
- For the Fahrenheit display, specify the option "/DF"
- Available for the combination with safety barrier (BARD-600)
- WT5A and WT5V are also available in 2,000 Vac voltage withstand specifications
Specifications
Accuracy
- ± 0.1 % of Span or ± 10 µV whichever is greater
- ± 1° C (± 1.8° F) [0° to 50° C (32° to 122° F)] - Reference Junction Compensation for Thermocouple K, T, E, J, B, N
- ± 2° C (± 3.6° F) [0° to 50° C (32° to 122° F)] - Reference Junction Compensation for Thermocouple R, S
Burn-Out
- 60 seconds, Max.
- Down
- Off
- Up
Consumption
- 45 mA at 24 Vdc (WT5V) - Power Consumption
- 65 mA at 24 Vdc (WT5A) - Power Consumption
Current
- 0.1 µA - Burn-Out Detective Current
Dissipation
- 3 VA at 100 Vac (WT5V) - Power Dissipation
- 4 VA at 100 Vac (WT5A) - Power Dissipation
- 4.5 VA at 200 Vac (WT5V) - Power Dissipation
- 5.5 VA at 200 Vac (WT5A) - Power Dissipation
Electrical Connectors
- M4 Screw Terminal
Humidity
- 5 to 90 % RH, Non-Condensing - Operating Humidity
Insulation Resistance
- 100 MΩ min. at 500 Vdc between Input, Output & Power Supply Mutually (DC-Driven), between Input, Output & Power Supply & Ground Mutually (AC-Driven)
Measuring Range
- -270° to 1,820° C (-454° to 3,308° F) - Thermocouples
Measuring Span
- 3 mV or more - Thermocouples
Mounting
- DIN Rail Mounting
- Rack-Mounted
- Wall Mounted
Operating Temperature
- 0° to 50° C (32° to 122° F)
Output
- 0-24 mA DC
- 10 mV - 20 V - Span (DC)
- -10 to 10 Vdc
- 1-24 mA - Span (DC)
Power Supply
- 100-240 Vac (-15 %, 10 %) (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
- 1 Kiloohm or Less - Signal Source Resistance
- 1 MΩ or more - Input Resistance when Power-On
- 10 kΩ or more - Input Resistance when Power OFF
- 2 to 250 kΩ or more - Allowable Load Resistance for DC Voltage
- 750 to 15,000 ohms or Less - Allowable Load Resistance for DC Current
Response Time
- 200 ms, 63 % Response (10 to 90 %)
Sensor, Probe Type
- B Thermocouple (ITS-90, JIS C 1602: '95, IEC 584: '95)
- E Thermocouple (ITS-90, JIS C 1602: '95, IEC 584: '95)
- J Thermocouple (ITS-90, JIS C 1602: '95, IEC 584: '95)
- K Thermocouple (ITS-90, JIS C 1602: '95, IEC 584: '95)
- N Thermocouple (ITS-90, JIS C 1602: '95, IEC 584: '95)
- R Thermocouple (ITS-90, JIS C 1602: '95, IEC 584: '95)
- S Thermocouple (ITS-90, JIS C 1602: '95, IEC 584: '95)
- T Thermocouple (ITS-90, JIS C 1602: '95, IEC 584: '95)
Span & Zero Adjustments
- ± 1 % of Span - Input Adjustment
- ± 10 % of Span - Output Adjustment
- ± 5 % of Span for -10-10 Vdc Output
Supply Voltage
- -0.5 to 4 Vdc - Permissible Applied Voltage
- 1,500 Vac for One Minute between Input, Output & Input, Power Supply - Withstand Voltage
- 500 Vac for One 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
Zero Offset
- 0 to 200 % - Zero Elevation (Current Signal)
- -100 to 200 % - Zero Elevation (Voltage Signal)
