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Shenzhen Dongri Yingneng Technology Co., Ltd
Explosion proof combustible gas four in one detector
NegotiableUpdate on 01/28
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Overview
The explosion-proof combustible gas four in one detector can detect gas concentration in pipelines, confined spaces, and atmospheric environments. It can detect gas leaks or high concentration single gas purity with various background gases such as nitrogen or oxygen. It can detect more than 500 types of gases.
Product Details
Introduction to Explosion proof Combustible Gas Four in One Detector:
Portable toxic and harmful gas detection and alarm device is used for portable and rapid detection of toxic and harmful gas concentration, temperature and humidity measurement (optional), and alarm for exceeding the standard. Using a 2.31-inch high-definition color screen to display concentration in real time, imported brands (Honeywell, Nippon Genshin, CITY, Alpha, Dynament, Membrapor, etc.) gas sensors are selected. The main detection principles include electrochemistry, infrared, catalytic combustion, thermal conductivity, and PID photoionization. The circuit design and mature kernel algorithm processing have achieved multiple software works and appearances. It can detect gas concentration in pipelines, confined spaces, and atmospheric environments. It can also detect gas leaks or high concentration single gas purity with various background gases such as nitrogen or oxygen. It can detect more than 500 types of gases.
The explosion-proof combustible gas four in one detector is a portable safety device that integrates explosion-proof certification and four key gas detection functions. It is a "life-saving tool" for workers working in hazardous environments, providing a crucial safety barrier through real-time monitoring and instant alarm, actively preventing catastrophic accidents caused by flammable, toxic gases, and oxygen deficient/rich environments.
Explosion proof:
This means that the design and manufacturing of the instrument itself comply with strict explosion-proof standards.
Its casing and circuit are specially designed to ensure that even if sparks or high temperatures are generated inside, it will not ignite the explosive gas environment outside.
Importance: In hazardous areas where flammable gases may exist, the use of non explosion proof electronic devices itself is a huge safety hazard.
Combustible gases:
It indicates one of its core detection targets. It can monitor all gases that may burn or explode, such as methane (natural gas), propane, hydrogen, solvent vapor, etc.
Four in one:
This is its core function, which refers to a device simultaneously and in real-time monitoring four different gas indicators. These four indicators have been carefully selected and cover the most significant security threats in industrial environments.
Detector:
It specifies its device attributes as an instrument used for detecting, measuring, and displaying gas concentrations.
What are the four gases specifically detected by "four in one"?
Usually, these four gases are:
Combustible gases:
Measurement unit:% LEL (lower explosive limit)
Function: To prevent fires and explosions. When the concentration of combustible gas reaches a certain percentage (such as 20% or 50%) of the lower explosive limit, the instrument will sound an alarm.
Oxygen:
Measurement unit:% VOL (volume percentage)
Function: To prevent the risk of suffocation or oxygen enrichment. The normal oxygen content in the air is about 20.9%. Too low (<19.5%) can cause suffocation; If it is too high (>23.5%), it will greatly increase the risk of fire.
carbon monoxide:
Measurement unit: ppm (parts per million concentration)
Function: To prevent acute poisoning. Carbon monoxide is a colorless and odorless highly toxic gas produced by non combustion.
hydrogen sulfide:
Measurement unit: ppm
Function: To prevent poisoning. Hydrogen sulfide is a highly toxic gas with a foul egg odor, commonly found in fields such as sewage treatment and oil extraction. High concentrations can quickly lead to coma and death.
Note: In certain industries, the combination of these four gases may be fine tuned (such as replacing carbon monoxide with sulfur dioxide), but the above combination is still classical.
Its core function and purpose
Real time monitoring and alarm: After turning on, it will continuously detect the surrounding air and display the concentration of four gases in real time on the screen. When the concentration of any gas exceeds the safety threshold, it will immediately sound an alarm through three methods: high decibel sound, dazzling flash, and strong vibration.
Protecting personnel safety: It is a device that can effectively prevent explosions, poisoning, and suffocation accidents when entering enclosed spaces (such as sewers, storage tanks, and cabins) or hazardous areas (such as chemical plants and oil platforms).
Leakage source investigation: Staff can hold it close to possible leakage areas such as pipeline interfaces and valves to accurately locate the leakage point.
Main application scenarios
Petroleum, chemical, and natural gas industries
Municipal operations (maintenance of sewers and pipe galleries)
fire and rescue
Power and telecommunications industry (cable well operation)
Ship cabin operations
Any confined space with complex gas risks
Features of explosion-proof combustible gas four in one detector:
Waterproof, dustproof, explosion-proof, shockproof, intrinsically safe circuit design, anti-static, anti electromagnetic interference, passed national standard testing and CPA measuring instrument type approval certification
Protection level IP65, optional accessories for use in high humidity and high dust environments
● Built in pump suction measurement, fast response, sampling distance greater than 10 meters, special gas path design, optional accessories can detect negative or positive pressure of -0.5 to 2 kilograms of gas, without affecting the measurement results
The 2.31-inch high-definition color screen displays real-time information such as concentration, alarm, time, temperature, humidity, storage, communication, battery level, charging status, etc. The menu interface uses high-definition simulation icons to display the function names of each menu
● Large capacity data storage function, customizable for larger capacities. Supports real-time storage, scheduled storage, or only storing alarm concentration data and time, supports local viewing and deletion of data, and can also upload data to a computer through a USB interface for analysis, storage, and printing using upper computer software.
● USB charging interface, can be charged with a computer or power bank, compatible with mobile phone chargers, overcharge, overdischarge, overvoltage, short circuit, overheating protection, 5-level accurate power display, supports USB hot plugging, the detector can work normally during charging, and RS485 communication is optional
Equipped with a 4600mAh high-capacity rechargeable polymer battery, it can work continuously for a long time
Sound and light alarm, vibration alarm, visual alarm, undervoltage alarm, fault alarm, and multi-directional stereoscopic display of alarm status during alarm.
The alarm value can be set, and the response method can be selected from low alarm, high alarm, interval alarm, and weighted average alarm
High precision temperature and humidity measurement (optional), with temperature compensation for the sensor. The instrument operates within a temperature range of -40 to 70 degrees Celsius and can detect gases up to 400 degrees Celsius. Gas detection at higher temperatures can be customized (optional high temperature sampling, cooling, filtering handle or high temperature and high humidity pretreatment system)
● It can be optionally selected to detect 1-4 gases simultaneously, with units that can be freely switched. Conventional gases do not require input of molecular weight, while special gases require input of molecular weight to automatically calculate and switch. Units can be selected: PPM, mg/m3, Vol%, LEL%, PPHM, ppb, mg/L
Three display modes can be switched: simultaneously displaying four gas concentrations, large font cyclic display of single channel gas concentration, real-time curve, automatic or manual cycling between channels can be switched, whether to display large values, small values, gas names can be set, and historical record curve graphs can be viewed.
The interface is selectable in both Chinese and English, with a default Chinese interface and concise Chinese or English operation prompts
● Data recovery function, which can selectively restore or fully restore, eliminating the worries caused by misoperation
● Zero point automatic tracking, not affected by zero drift during use.
Three level calibration of the target point ensures the linearity and accuracy of the measurement, and can simultaneously comply with national and local standards.
Automatic identification and prevention of concentration calibration errors can avoid adverse effects caused by human factors.
The explosion-proof combustible gas four in one detector can detect in real time or at regular intervals (for situations where the amount of gas being tested is relatively small). When not detecting, the pump can be turned off to extend the start-up time.
● It can record calibration logs, maintenance logs, troubleshooting solutions, remind sensor life expiration, and remind the next concentration calibration time
