RDH40 SF6 Density and Dew Transmitter

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: SF_6, Air, N_2, SF₆+N₂ and other gases

RD40 Density Transmitter

DT10 Density Transmitter

DT26 Density Transmitter