language
Contact Us

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.
RD40-Density-Transmitter
  • RD40-Density-Transmitter
Share It :

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

 


Options of RDH40 SF6 Density and Dew Transmitter


  • Measuring gas medium: SF6, Air, N2, SF6+N2 and other gases

Brands We Cooperate
abb
siemens
schneider
toshiba
hyosung
Pressure Instruments Inquiry
Pictures or documents for technical requirements (optional)
Related Density Transmitter for Reference
Related News
Understanding the Sulfur Hexafluoride Gas Density Monitor
Working Principle of Sulfur Hexafluoride Gas Density MonitorThe working principle of the sulfur hexafluoride gas density monitor is mainly based on the detection of the degree of gas ionization under ...
Wed 06 2025
Principle and Overview of the SF6 Relay
The Working Principle of the SF6 RelayThe working principle of the sulfur hexafluoride (SF6) gas density relay is primarily based on the relationship between the pressure and density of SF6 gas, along...
Sat 06 2025
Remote Transmission Type Sulfur Hexafluoride Gas Density Monitor: Ensuring Safe Operation of Power Systems
Ensuring the Insulation and Arc-quenching Performance of EquipmentThe density of SF6 gas is a key parameter that determines its insulation and arc-quenching performance. When leakage occurs and the de...
Tue 06 2025
Lanso Instruments INC.
233 W 1st St #210, North Vancouver, Canada
info@lansoinstruments.com
233 W 1st St #210, North Vancouver, Canada
info@lansoinstruments.com