Explosion proof combustible gas four in one detector

The explosion-proof combustible gas four in one detector is used for portable and rapid detection of toxic and harmful gas concentration, temperature and humidity measurement (optional), and alarm for exceeding the standard.

Explosion proof four in one gas alarm is a portable personal protective equipment. Its core function is to simultaneously and real-time monitor the four most common and dangerous gas factors in the environment, and issue a strong alarm when the concentration exceeds the standard, thereby protecting the safety of workers.

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.

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

Detailed breakdown of its functions:

What are the four types of testing for "four in one"?

These four detection targets cover the vast majority of industrial gas hazards:

Combustible gas (LEL - lower explosive limit)

What to test: all gases that may burn or explode, such as methane (natural gas), propane, hydrogen, solvent vapor, etc.

Why is it important: to prevent fire and explosion accidents. When the concentration of combustible gas reaches its lower explosive limit percentage, the instrument will sound an alarm.

Oxygen (O?)

What to measure: the concentration of oxygen in the air.

Why is it important:

Hypoxia alarm: In enclosed spaces such as cabins, storage tanks, and sewers, oxygen may be squeezed by other gases, and low concentrations (<19.5% VOL) can cause suffocation of personnel.

Oxygen enrichment alarm: Excessive oxygen concentration (>23.5% VOL) greatly increases the risk of fire, making non flammable substances also flammable.

Carbon monoxide (CO)

What to test: colorless and odorless toxic gas.

Why is it important: usually produced by non combustion (such as engines, diesel engines, faulty boilers). Inhalation can hinder blood oxygen supply, leading to poisoning, coma, and even death.

Hydrogen sulfide (H2S)

What to test: a highly toxic gas with a foul egg odor.

Why is it important: commonly found in environments such as oil, natural gas, sewage treatment, septic tanks, etc. Low concentrations can irritate the eyes and respiratory tract, while high concentrations can quickly paralyze the olfactory nerve (making it inaudible) and lead to sudden death resembling an electric shock.

Note: The specific gas of "four in one" can be customized according to industry needs. For example, in sewage treatment, sulfur dioxide (SO?) may be used instead of CO, but the above combination is classic.

What does "explosion-proof" mean?

This means that the design and manufacturing of the instrument itself comply with strict explosion-proof standards. Its shell can isolate potential internal sparks, high temperatures, or static electricity, ensuring that it will not become an ignition source even when used in flammable and explosive gas environments. The use of non explosion proof equipment in hazardous areas is inherently extremely dangerous.

What is the core function of an alarm?

Its core function is real-time monitoring and instant alarm. Once the concentration of any detected gas reaches the preset danger threshold, it will immediately sound an alarm in three ways simultaneously:

Sound and light alarm: high decibel buzzer and dazzling flash.

Vibration alarm: suitable for high noise environments, ensuring that the wearer can feel it.

Visual alarm: The screen will clearly display which gas exceeds the standard and the current concentration value.

Main uses and application scenarios

This instrument is a "life-saving device" for workers in the following industries:

Petroleum, chemical, and natural gas industries: refineries, chemical plants, drilling platforms.

Municipal operations: Safety inspections and full monitoring of operations before entering enclosed spaces such as sewers, underground pipe galleries, biogas digesters, etc.

Fire rescue: used for on-site reconnaissance of fire scenes or toxic gas leakage accidents.

Public utilities: Pipeline inspection and leak detection for gas companies.

Shipbuilding industry: Working in confined spaces such as cabins and fuel tanks.

Emergency repair and accident handling.

The explosion-proof four in one gas alarm is an active safety instrument that integrates explosion-proof design and multiple gas detection. Its existence is to provide a crucial safety barrier for workers in complex and dangerous work environments, preventing the three main risks of explosion, poisoning, and suffocation.