RDH40 SF6 Density and Dew Transmitter
RDH40 Gas Density and Dewpoint Transmitter is mainly used to monitor the temperature, pressure, density and moisture content of SF6 gas in closed containers, with real-time remote monitoring function. The intelligent compensation technology is used inside the product, which can track the nonlinear change of SF6 gas pressure and the change of micro-water content in real time, and the measurement is accurate and widely used. Suitable for monitoring of medium and high voltage systems. It can be used in the new substation building and the renovation and smart upgrading of existing substation.
Application of RDH40 SF6 Density and Dew Transmitter
SF6 Gas Insulated Switchgear (GIS)
SF6 Insulated Circuit Breaker
SF6 Insulated Pole-Mounted Switch
SF6 Insulated Transformer
SF6 Insulation Current Transformer or Voltage Transformer
SF6 Insulated Bus System
Features of RDH40 SF6 Density and Dew Transmitter
Suitable for medium or high voltage systems
Multi-parameter instrument for simultaneous monitoring of gas dew point, density, pressure and temperature with excellent accuracy
RS485 bus interface (Modbus RTU)
Small size, beautiful structure
Technical Data of RDH40 SF6 Density and Dew Transmitter
Pressure measuring range: 0 ~ 1.4MPa (customizable)
Dew measuring range: -50℃ ~ +20℃
Accuracy of transmitter:
Temperature：±1℃
Pressure：±0.5%FS.
Pressure at 20℃：±1.0%FS.
Dew：±3℃
Degree of protection: IP65
Ambient condition: -40℃~ +80℃, Relative humidity ≤ 95%RH
Leakage rate: ≤1 x 10-9Pa · m3/s (Helium leakage inspection)
Process connection: G1 (customizable)
Electrical connection: M12 x 1 Circular connector
Weight: 0.4kg
Remote part of the main electrical performance indicators and specifications
Operating voltage: 10~30VDC
Power consumption: <0.5W
Communication mode: RS485
Communication protocol: Modbus RTU
Baud rate: 9600bps
EMC Class:
IEC61000-4-2: Level 4
IEC61000-4-3: Level 3
IEC61000-4-4: Level 4
IEC61000-4-5: Level 4
IEC61000-4-6: Level 3
IEC61000-4-8: Level 5
IEC61000-4-9: Level 5
IEC61000-4-10: Level 5
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