Industrial Scientific Gas Detectors Series

In today's world, environmental monitoring is the foundation and technical support for environmental management. With the development of my country's environmental protection work, my country's environmental monitoring technology has also made great progress, and the production of environmental monitoring instruments has formed a certain scale. The four-in-one gas detector is a single gas or multiple gas detectors that can be flexibly configured. It can be equipped with an oxygen sensor, a combustible gas sensor, and optionally two toxic gas sensors or optionally four toxic gas sensors or any Choose a single gas sensor.








We know that the conventional four-in-one gas detector can detect four gases: oxygen, combustible gas, hydrogen sulfide, and carbon monoxide. Of course, we can also customize it according to the gas we need to detect. The four-in-one gas detector has a very clear large liquid crystal display screen, with sound and light alarm prompts, to ensure that dangerous gases can be detected in a very unfavorable working environment and promptly prompt the operator to prevent.







The general detection parameters and range of the four-in-one gas detector are as follows:

Can detect 1～4 kinds of gas at the same time, the unit can be switched freely

Units are optional: PPM, mg/m3, Vol%, LEL%, PPHM, ppb, mg/L.

★ Rich man-machine interface

2.31-inch high-definition color screen, displaying real-time concentration, alarm, time, temperature, humidity, storage and other information; the menu interface uses high-definition simulation graphics to display the function name of each menu.

★ Large-capacity data storage function (capacity can be customized), supports multiple storage methods, optional RS485 communication

Lithium batteries are also called lithium-ion batteries. Lithium-ion batteries were produced and commercialized by Sony in 1991.








Compared to other rechargeable batteries such as lead-acid batteries and nickel-cadmium batteries, lithium-ion batteries have the advantages of high energy density, relatively safe use, and no memory effect, and do not contain heavy metal elements such as lead, cadmium, and mercury that pollute the environment, so they are a more environmentally friendly type of battery.



01 Policy environment



The Ministry of Industry and Information Technology promulgated the "New Energy Vehicle Industry Development Plan (2021-2035)" in 2019, which states that the domestic new energy vehicle sales ratio is expected to reach 25% by 2025, and the intelligent networked vehicle sales ratio will get 30%.



Internationally, Europe has introduced the strictest carbon emission law, which will prompt significant car companies to accelerate the transformation of electrification, and European countries to promote the long-term development of the industry through direct subsidies and tax relief policies.



02 Lithium battery industry chain



The lithium battery industry chain is divided into upstream materials, midstream lithium-ion batteries, and downstream consumer electronics, new energy vehicles, and energy storage.



The upstream of the industry chain is the mining and processing of raw material resources, mainly including cobalt, lithium, graphite materials, carbon materials, and so on.



Upstream mainly includes cathode materials (lithium cobaltate, ternary materials, etc.), anode materials, electrolytes, diaphragm, and other auxiliary materials.



The midstream of the industry chain mainly refers to cell manufacturing and modules, connecting upstream cell production and downstream vehicle applications.



According to the data in 2020, the installed capacity of power battery enterprises is 58.4 GWh, accounting for 92% of the total installed capacity. Enterprises include Ningde Time, Kodaly, Xinwanda, YIWI Li-energy, BYD, Guoxuan High-tech, etc.





The downstream of the lithium battery industry chain includes the consumer electronics field, the new energy vehicle field, and the energy storage field.



New energy vehicles are an important thrust of the current lithium battery industry explosion, with new energy vehicle sales rising from 330,000 units to 1.21 million units from 2015-2019. The future demand for power batteries for new energy vehicles will still maintain growth, and this will also greatly increase the market demand for lithium batteries.



In addition, the application of lithium batteries in the field of electric bicycles as well as in the field of energy storage is also developing faster.



03 Lithium battery production accidents



In addition to the safety of the finished battery, we are also very concerned about the safety of the battery production process. When the electrolyte of a lithium battery encounters a large amount of water, it may explode due to rapid decomposition and exotherm. The working environment of the lithium battery production plant is exposed to flammable gases or toxic gases such as ammonia, CL2, HF, hydrogen sulfide, hydrogen, carbon monoxide, hydrochloric acid, Freon, phosphoric acid, etc. If the concentration of these gases exceeds the standard, there is a risk of fire, poisoning, and other hazards.



Lithium battery accident case



At noon on September 30, 2010, a warehouse on the 4th floor of an enterprise in Guanggu Venture Street was on fire. The open fire ignited a large number of lithium batteries stored in the warehouse and caused an explosion lasting for more than 20 minutes, with no casualties.





04 How to ensure the safety of lithium battery production



The MIC2000 and MIC600 are installed on-site to intelligently detect leaks of low-concentration gases.





The MIC2000 gas controller is suitable for detecting the content of toxic gases such as carbon monoxide and hydrogen sulfide in gas leak areas. The product is designed with integrated sound and light alarms, which can effectively warn of the danger of various types of gas leaks and ensure the personal safety of workers.



The MIC600 fixed gas detector is mainly used to detect the oxygen content in pipelines and containers. The modular sensor design supports hot-swappable replacement, and the explosion-proof design can be used in explosive hazardous locations. Real-time uninterrupted protection of personnel safety.

Portable gas detectors, as an important tool for modern industrial safety and environmental monitoring, mainly detect gas concentrations in the air through built-in sensor technology. Whether a portable gas detector can work properly in a strong electromagnetic interference environment depends on the design and performance of its anti-interference ability. Generally speaking, high-quality portable gas detectors usually have strong anti-interference capabilities and can resist strong electromagnetic interference to a certain extent, thereby ensuring normal operation. So can portable gas detectors work properly in a strong electromagnetic interference environment? The following is the sharing of the editor of Zechuan Technology.








First, the shells of these detectors are usually made of impact-resistant and anti-electromagnetic interference materials to protect the internal circuits and sensors from external interference. At the same time, the internal circuits of the instrument are also specially processed to enhance its ability to resist electromagnetic interference.








Secondly, some advanced portable gas detectors are also equipped with electromagnetic shielding technology to further reduce the impact of electromagnetic interference on the detection results. These technologies can effectively reduce electromagnetic noise and improve the stability and accuracy of the detection signal.







However, even with strong anti-interference capabilities, it cannot guarantee that the portable gas detector can work completely normally in all strong electromagnetic interference environments. Therefore, when selecting and using a portable gas detector, the specific use environment and electromagnetic interference should be considered.








In order to reduce the impact of electromagnetic interference on portable gas detectors, the following measures can be taken:








1. Choose a detector with strong anti-interference ability: When purchasing a portable gas detector, choose products that are certified, reliable and have strong anti-interference ability.








2. Understand the use environment: Before use, fully understand the electromagnetic interference of the use environment in order to choose a suitable detector and take corresponding protective measures.








3. Reasonable installation and use: Follow the instructions of the detector to correctly install and use it, and avoid placing the detector near a strong electromagnetic interference source.








4. Regular maintenance and calibration: Regularly maintain and calibrate the detector to ensure that it is in good working condition.








In summary, whether a portable gas detector can work normally in a strong electromagnetic interference environment depends on the design and performance of its anti-interference ability. By choosing a detector with strong anti-interference ability, understanding the use environment, reasonable installation and use, and regular maintenance and calibration, the impact of electromagnetic interference on the detector can be reduced, thereby ensuring its normal operation. At the same time, with the continuous advancement of technology and the continuous expansion of application scenarios, we have reason to believe that future portable gas detectors will have stronger anti-interference capabilities and provide more solid protection for people's life safety and health.

We have more or less entered the underground garage, no matter where the underground garage, the air always seems to have a very dull and depressing dusty feeling, I do not know if you have the same feeling.




One of the main reasons for this feeling is because of the poor air circulation, underground garages are not installed exhaust system, only the import and export can be ventilated, the air is like a pool of stagnant water, especially the deep air is a bit like the feeling of the grave in the novel!



At the same time, there are a lot of car exhausts in the garage. The gases emitted from the car exhausts are mainly carbon monoxide, sulphur dioxide, nitrogen oxides, soot particles, formaldehyde and lead from the use of leaded petrol, which are harmful to the human central nervous system and cardiovascular system.





The production of carbon monoxide in underground garages mainly originates from car engines, when the engine is idling, due to insufficient combustion of petrol, it will produce exhaust gas containing a large amount of CO. The underground car park is an enclosed environment, where vehicles enter and exit more frequently, and the exhaust gases are not easily discharged, making it easy to accumulate a large amount of CO gas, resulting in a choking smell in the car park and damaging human health. If the concentration of the gas is too high, it may even cause fire and explosion.

In recent years, national and local authorities have also paid attention to underground garage CO detection systems.





The national standard "Green Building Evaluation Standard" GB/T50378-2014 version stipulates that "underground garages are equipped with CO monitoring devices linked to exhaust equipment".

Industrial Enterprise Design Health Standard GBZ1-2002 stipulates that the maximum permissible CO concentration in the workshop is 30mg/m3, when the operating time does not exceed 30min at a time, the permissible CO concentration can be relaxed to 100mg/m3, when the operating time is 10~20 minutes, the maximum permissible concentration is 200mg/m3.





The existence of underground garage carbon monoxide detection is necessary, the car has gone into thousands of households, although new energy cars have come out, but now not fully popular, so oil-burning cars still have a long way to go, in order to improve the Earth's environment, for the sake of human health itself, pay attention to the underground garage carbon monoxide problem, but also for the safety of human beings themselves.





CO detection




The solution

Purpose of installing an online gas monitoring system.

1) Personal safety: real-time monitoring of the ambient air and regular exhaust air to ensure that the concentration of carbon monoxide in the garage is below the hazard level.





2) Environmental protection and energy saving: set alarm values according to the concentration of carbon monoxide in the garage and link the fans to avoid energy wastage due to high exhaust air frequency.



Monitoring position: on the wall and column behind the car

Monitoring factors: carbon monoxide (CO), carbon dioxide (CO2), oxygen (O2)

Data transmission: wired or wireless

1) Wired transmission: the gas detection alarm is transmitted to the gas alarm controller in the form of a 4-20mA current signal or an RS485 bus system digital signal, which is then converted into an RS232 signal and transmitted to a computer terminal.

2) Wireless transmission: the gas detection and alarm instrument transmits data to the gas alarm controller in the form of RTU433 or GPRS wireless transmission, and then transmits wirelessly to the computer terminal through the Internet network.






Gas detectors








The MIC100 fixed gas detector can meet the on-site sound and light alarm prompt for CO and other harmful gas detection, and real-time display to monitor the concentration of the gas on site, and infrared remote control type, fixed installation without opening the cover can be set parameters.

 




Gas


Range


Resolution





O2


0-30%VOL


0.1%VOL




H2S


0-100ppm


1ppm




CO


0-500ppm


1ppm




EX


0-100%LEL


1%LEL





Suitable for use in a variety of hazardous industrial locations such as: metallurgy, petroleum and petrochemical, municipal, chemical, biological and pharmaceutical, household environmental protection, school laboratories, car exhaust, etc.

With the development of the economy, there are more and more chemical companies, and there are more and more dangerous accidents such as chemical gas leakage. As a result, the gas alarm industry is becoming more and more popular. Nowadays, more and more enterprises of various industrial enterprises use gas detection and alarm systems. In order to prevent personnel poisoning and protect public property, gas detection and alarm systems have become "protective umbrellas". Therefore, it is very important to choose a gas alarm suitable for your company.



Features of gas four-in-one detector:



● Waterproof splash, dustproof, explosion-proof, shockproof, intrinsically safe circuit design, anti-static, anti-electromagnetic interference, passed the standard test and CMC measuring instrument production license certification



● Protection type IP65, built-in water vapor and dust filter, to prevent damage to sensors and instruments due to water vapor and dust



● Built-in pump-type measurement, quick response, sampling distance greater than 10 meters, special gas circuit design, can directly detect negative or positive pressure -0.5 ~ 2 kg of gas, no impact on the measurement results



● The 2.31-inch clear color screen displays real-time concentration, alarm, time, temperature, humidity, storage, communication, power, charging status and other information. The menu interface uses clear simulation icons to display the function names of each menu



● Large-capacity data storage function, standard 100,000 data storage capacity, larger capacity can be customized. Support real-time storage, regular storage, or only save alarm concentration data and time, support local machine to view and delete data, and also upload data to computer through USB interface, use upper computer software to analyze data, store and print.



● USB charging interface, can be charged by computer or power bank, compatible with mobile phone charger, overcharge, overdischarge, overvoltage, short circuit, overheat protection, 5 accurate power display, support USB hot swap, the detector can work normally while charging , Optional RS485 communication.



● Using 4500mA large capacity rechargeable molecular polymer battery, can work continuously for a long time



● Sound and light alarm, vibration alarm, visual alarm, undervoltage alarm, fault alarm, multi-dimensional display of alarm status during alarm.



● Alarm value can be set, the alarm mode can choose low alarm, alarm, interval alarm, weighted average alarm.



● Precision temperature and humidity measurement (optional), at the same time temperature compensation for the sensor, the instrument uses a temperature range of -40 ~ 70 degrees, can detect 400 degrees of gas, more temperature gas detection can be customized (optional temperature sampling cooling filter handle Or temperature and humidity pretreatment system).



● It can detect 1-4 kinds of gas at the same time, the unit can be switched freely, the molecular weight of conventional gas does not need to be input, and the molecular weight of special gas needs to be automatically calculated and switched. The unit can be selected: PPM, mg/m3, Vol%, LEL%, PPHM, ppb, mg/L.



● Three display modes can be switched: simultaneous display of four gas concentrations, large font cycle display of single channel gas concentration, real-time curve, automatic cycle or manual cycle between each channel can be switched, can set whether to display large value, small value, Gas name, you can view the historical record curve.



● Chinese and English interface can be selected, the default Chinese interface, simple Chinese or English operation tips.



● Data recovery function, you can selectively recover or all recovery, avoiding the worries caused by misoperation



● Zero automatic tracking, long-term use is not affected by zero drift.



●Target point three calibration, to ensure the linearity and accuracy of the measurement, can meet the standards and local metrology bureau standards.



● Concentration calibration misoperation is automatically identified and prevented, which can avoid the defects caused by human factors.



● Real-time detection or timing detection (for the case where the amount of gas to be measured is relatively small), when not detected, the pump can be turned off to extend the start-up time.



●Can record calibration log, maintenance log, fault resolution countermeasures, sensor life expiration reminder, next concentration calibration time reminder function



As a powerful brand in the gas detector market weather body detector, since its introduction into the market, it has been favored by more and more customers with its three leading advantages of quality leading, technology leading and after-sales leading.