SF6+O2Gas transmitters, as key environmental monitoring equipment in the fields of power, electronics, and industry, are equipped with sulfur hexafluoride（SF6）With oxygen（O2）The concentration detection function is integrated with temperature and humidity monitoring capabilities, providing reliable guarantees for safe operation in special environments.

1、 Multi parameter integrated monitoring technology

The transmitter adopts a modular design, and the core detection unit includes:

SF6Detection unit: Breaking through the limitations of short lifespan and poor stability of traditional electrochemical sensors, innovatively applying ultrasonic sensor monitoring technology. By analyzing the propagation characteristics of high-frequency sound waves in gas media, achieveSF6Non contact measurement of concentration, extending the service life to traditional solutions3More than double.

O2Detection unit: Using solid-state electrochemical sensors imported from the UK, in-20℃~60℃Maintain within a wide temperature range±1%FSMeasurement accuracy, response time ＜15Seconds, effectively avoiding the measurement drift problem of traditional sensors in low-temperature environments.

Temperature and humidity composite detection: Integrated high-precision digital temperature and humidity sensors, with humidity measurement resolution of up to0.1%RHTemperature measurement accuracy±0.3℃Meet the precision environmental monitoring needs of substations, laboratories, and other facilities.

2、 Intelligent data transmission system

Device ConfigurationRS485Twisted pair communication interface, supportingMODBUS RTUProtocol, capable of achieving the longest possible duration2kmLong distance data transmission. Flexible configuration of communication parameters:

Baud rate2400/4800/9600bpsThree levels to choose from

Address range:1-255Programmable settings

Data frame structure: adopts16bitCRCVerification, error rate below10^-6

In the application of smart substations, a single host can be synchronously connected32A transmitter is used to form a distributed monitoring network. The upper computer software supports real-time data curve drawing, historical data query, and over limit alarm functionsSF6Concentration exceeds1000ppmOr the oxygen concentration is lower than19.5%At that time, the system automatically triggers an audible and visual alarm and pushes a text message to the operation and maintenance personnel.

3、 Typical application scenarios

Monitoring of power equipment room: inGISThe equipment is deployed in the combination electrical room and can be monitored in real-timeSF6Risk of leakage and hypoxia. some500kVSubstation application case shows that the system is advanced47Minute AlertSF6Leakage accidents to prevent personnel poisoning incidents from occurring.

Industrial safety protection: In enclosed workplaces such as metal smelting and chemical production, equipment continuously monitors oxygen concentration. When the environmental oxygen content is lower than18%Automatically activate the exhaust system to ensure the safety of workers.

Laboratory environment control: in conjunction with temperature and humidity control devices, providing stable conditions for precision experiments±2℃temperature±5%RHHumidity environment ensures the reproducibility of experimental data.

The transmitter has established an environmental safety monitoring system through multi parameter fusion detection, anti-interference communication design, and intelligent warning mechanism. Its averagefault-freeWorking hours（MTBF）Da Da80000Hour by hour, becoming the preferred solution in the field of special environmental monitoring.