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gas density meters

V2-T Series SF6 Gas Density Sensor

Application

  • Permanent monitoring of the relevant gas condition parameters in closed tanks.
  • For internal and external SF6/ or mixed insulated equipment

 

Special features

  • High-accuracy sensor technology
  • Modbus® output protocol via RS-485 interface, real-time data collection
  • Case from stainless steel,ingress protection IP65
  • Very good long-term stability and EMC characteristics
  • Compact dimensions
  • Interface size can be customized

Permanent monitoring

In order to prevent system failures in switchgear and network outages,the permanent monitoring of the gas density is essential.

The V2-T transmitter calculates the current gas density from the pressure and temperature using a complex virial equation in the transmitter's powerful microprocessor. Changes in pressure resulting from thermal effects will be compensated by this and will not affect the output value.

 

Modbus® fieldbus

The RS-485 interface communicates using the Modbus® RTU protocol. The instrument's output parameters and their units can be configured and read according to requirements. The V2-T can be configured later by the customer for each defined SF6 gas mixture with N2 or CF4.

 

Signal stability

Due to its high long-term stability,the V2-T density transmitter is maintenance-free and requires no recalibration.

The EMC characteristics fulfil the IEC 61000-4-2 through to IEC 61000-4-6 standards and guarantee an interference-free data output.

 

Rang:01.0MPa(customized)     

Accuracy specifications:±1.0 %at an ambient temperature of +20;±2.5 % at an ambient temperature of -40℃ ∼ +60(SFis a gas)

Weather protection:IP65                                               

Ambient temperature:-40℃∼+60℃,Permissible humidity≤95%RH

Pressure element's gas-tight:Leakage rate ≤ 1×10-9 Pa·m3 /s(Helium mass spectrometry)                           

Process connection:M20×1.5(customized)                                                     

Power consumption:≤2W

Communication method:RS485(Modbus RTU),4∼20mA,IEC61850,Wireless communication(LoRa)

EMC tests:IEC61000-4-2:class4(15KV)   IEC61000-4-3:class3(10V/m)

                  IEC61000-4-4:class4(4KV)     IEC61000-4-5:class4(±4KV)

                  IEC61000-4-6:class3(10V)     IEC61000-4-8:class5(100A/m)

                  IEC61000-4-9:class5              IEC61000-4-10:class5

                  IEC61000-4-11:60%Ut

                   SF6 Gas Density Sensor

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