1)Feature Overview：

SF6 density transmitter includesDew point detection unit, temperature detection unit, and pressure detection unitAnd communication unitThe detected data is transmitted to the monitoring host through the RS-485 bus. The dew point sensor has automatic calibration and automatic heating functions, which ensure fast measurement and long-term stability of the transmitter.The sealing part of the transmitter is integrally formed through Seal with O-ring. All of these make the transmitter have excellent sealing and easy disassembly. -A special customized sealing system can be used in a low temperature environment of 50 ℃.

2)Technical Specifications：

lmeasurement parameters

Dew point range:-50...+20℃Td/f

Pressure range:0...+1.2MPa

Temperature range:-40...+80℃

lcalculation parameters

convert toParameters under standard conditions of 20 ℃

Micro water value:10...20000ppm

Pressure value:0...1.2MPa

SF6 density value: 0... 100kg/m3

The output parameters are:Ppm20 (micro water at 20 ℃), P20 (pressure and density at 20 ℃), T (℃), Td (dew point), P (pressure) Td@Atm (Atmospheric dew point), density (kg/m ³)

lperformance&Accuracy

Dew point accuracy:±3℃Td

pressure value(Density) accuracy: ± 1% FS

Temperature accuracy:±1℃

Sensor response time:

Dew point sensor:2 seconds (20 ℃)

Pressure sensor:<0.5 seconds (20 ℃)

Temperature sensor:<1 second

lworking environment

Transmitter operating temperature:-55~+125℃

Overload safety pressure:2.0MPa

Relative humidity:0~100RH%

Tested gas:SF6、 Or SF6 mixed gas

output

Communication method:RS485

Communication protocol:ModBus

Transmission speed:9600bps

lgeneral parameters

Working Voltage:18~36VDC

power:<3W

Weight:361g

Protection level:IP65

Shell material: stainless steel

Joint material: stainless steel

Electrical connectors:M12 connector

mechanical interfaceM30 × 1.5 (customizable three-way valve)

Sealing method:O-ring (33 × 2.5mm)

Absolute leakage rate:≤10^-9Pa•m³/S (helium gas detection)

Rated inflation pressure:1.0MPa（abs）