The online ethylene oxide Gas Detector HNAG1000-ETO, which is suitable for real-time and accurate detection of ethylene oxide body concentration and leakage in various environments, adopts imported electrochemical sensor and microcontroller technology. Fast response, high measurement accuracy, good stability and repeatability. The explosion-proof wiring method is suitable for all kinds of dangerous places, and is compatible with various control alarms, PLC, DCS and other control systems, and can realize on-site alarm and early warning at the same time, 4-20mA standard signal output, relay switching output; It is very good to display various technical indicators and gas concentration values; At the same time, it has a variety of strong circuit protection functions, which can effectively prevent the damage of the instrument caused by various human factors and uncontrollable factors.
●Intrinsically safe circuit design, explosion-proof certification, secondary lightning protection, anti-static, lightning protection and anti-static ability exceed the national standard, and resist the impact of high-intensity pulse surge current. High reliability and stability.
●Standard bus RS485 and 4~20mA standard signal output at the same time, 1 group of relay switching output, optional frequency output 200-1000Hz, Hart protocol signal, 1~5V output, wireless transmission (10-50 km or unlimited distance). It can be wired or wireless remote real-time monitoring, upload the data to the mobile phone or transmit it to the Environmental Protection Bureau, other monitoring centers, monitoring equipment, monitoring computers through the local area network and the Internet, and monitor the concentration of the site in real time through free host computer software or gas alarm controller.
●Compatible with various secondary meters, data acquisition modules, PLC, DCS systems, can directly drive solenoid valves, fans, alarms and other equipment, and can also drive high-power equipment by driving intermediate relays.
●Equipped with infrared remote control as standard, it can realize the operation without opening the lid in dangerous situations, such as: modify alarm point, concentration calibration, zero point calibration, silencer, factory reset, and enter the menu.
●2.5 inch high-definition color screen (TF) displays real-time concentration, temperature and humidity.
●Automatic tracking of zero point to prevent drift, temperature compensation, multi-level calibration, can meet the national standard and local and provincial metrology bureau standards in various regions at the same time.

Petroleum and petrochemical, chemical plants, smelters, iron and steel plants, coal plants, thermal power plants, scientific research, production workshops, tobacco companies, environmental monitoring, school scientific research, building construction, fire alarm, sewage treatment, industrial gas process control, boiler room, garbage treatment plant, tunnel construction, oil pipelines, gas stations, underground gas pipeline maintenance, indoor air quality testing, hazardous place safety protection, aerospace, military equipment monitoring, etc.
In line with EMI and EMC standards, it has passed the national standard test and CMC measuring instrument license certification.
GB 3836.1—2010 General requirements for electrical equipment used in explosive gas atmospheres
GB 3836.2—2010 Electrical equipment for explosive gas atmospheres - Flameproof type "d"
GB 3836.4—2010 "Electrical equipment for explosive gas atmospheres – Intrinsically safe type "i"
梅燕 - 《华南理工大学 化学工程》
张 瑜 - 《天津联维乙烯工程有限公司》