Brief introduction
SGA-500B-C3H8O2Dimethoxymethane gas detectorAlso known as methylene dimethyl ether gas detector, dimethyl formaldehyde gas transmitter, formaldehyde gas leak alarm; It is a gas detection and alarm device that can monitor the concentration of dimethoxymethane gas in the air 24 hours a day online; 4-20mA signal output, can be used in conjunction with alarm control hosts, PLCs, and DCS systems from other manufacturers; Work indicator light (green), alarm indicator light (red), fault indicator light (yellow), clear at a glance; Large screen LCD display screen, real-time display of detected gas names, gas units, on-site concentration values and other information; Imported original dimethoxymethane gas sensors from abroad have the characteristics of high sensitivity, strong stability, low error rate, and long service life; Full range temperature and humidity compensation and intelligent calculation ensure accurate monitoring data; When the monitored gas reaches the preset alarm point, a local sound and light alarm of 85dB or above will be automatically issued to remind personnel to evacuate safely; It can also be equipped with switch signals, which can be linked with equipment such as fans and shut-off valves to automatically handle dangerous situations; Infrared remote control, without the need to open the cover, can reset the on-site gas alarm, set alarm points, target points, and facilitate subsequent maintenance; Shenguoan has a unique three proof design with a safety factor comparable to foreign gas detectors: anti high concentration overload (with self-protection function), anti personnel misoperation (built-in buttons+can restore factory settings), and lightning protection (third level standard). Inherent safety circuit design, equipped with an aluminum alloy explosion-proof shell, can be safely used even in harsh environments. With excellent quality, we have not only obtained the explosion-proof certificate (No. CNEx14.1674) issued by the national explosion-proof electrical department, but also obtained dual certifications of CE and ROHS from the European Union.
SGA-500B-C3H8O2Dimethoxymethane gas detectorThe default sampling method is gas diffusion, and it can be upgraded for free to specialized gas cups such as pump suction, pipeline, and circulation. The basic detection principle is that when the target gas enters the gas probe section, the internal sensor will immediately emit an induction. Sensors generate certain electrical signals based on the concentration of gas. shouldAfter the signal is amplified and processed by the circuit, the CPU outputs accurate 4-20mA current signals, RS485 communication signals, 0-5V voltage signals, ZIGBEE, NRF, WIFI, GPRS wireless signals, etc. through AD sampling, temperature and humidity compensation, and intelligent calculation. Customers can collect these signals and communicate with SGA, SGA-800B, SGA gas alarm controllers from Shenzhen Guoan Company PLC、DCS、 The upper computer and other systems are used in conjunction for alarm and data reprocessing. In addition, the product is equipped with 2 sets of relays (switch signal) outputs inside, which facilitate the linkage of control equipment for fans and solenoid valves, and maximize the protection of your life and property safety. Real time storage, editing, and printing of monitoring data can also be achieved through Shenzhen Guoan's dedicated monitoring software.
Alias:
Dimethoxymethane gas detector, C3H8O2 gas transmitter, methylene dimethyl ether gas detector, dimethyl formaldehyde gas transmitter, formaldehyde gas leak alarm, methylene dimethyl ether gas sensor
2、 Product Features
●Inherent safety circuit design, safe and reliable;
●Can detect concentrations of over 500 flammable, toxic, VOC and other gases;
●Large screen LCD display, capable of 24-hour online monitoring and real-time display of gas concentration;
●Three indicator light design, monitoring status is clear at a glance:Work lights, alarm lights, fault lights
●Imported gas sensors from overseas with original packaging, fast response speed, low error rate, and strong anti-interference ability;
●32Bit microprocessor+24 bit acquisition chip, capable of detecting any value between 00.000-99999;
●Multiple signal outputs are available: 4-20mA, RS485, RS232, 0.4-2V, 0-5V, etc;
●multipleRange units available:% LEL,% VOL, PPM, PPB, ug/m3;
●Powerful sound and light alarm function: 85dBThe above sound+continuous flashing of lights;
●Customers can set alarm points, reset to zero, and other functions by using the built-in buttons or infrared remote control;
●Full range temperature and humidity compensation and data correction greatly improve the accuracy and stability of the product;
●2Group relay (switch signal) signal output, convenient for linkage with control equipment of fans or solenoid valves;
●Aluminum alloy cast explosion-proof shell+Shenzhen Guoan's unique three proof design, ensuring safety and security;
●Unique structural design, simple and convenient installation and wiring, saving costs;
●Built in buttons+factory reset function to avoid personnel misoperation;
●Explosion proof certificate level: ExdIICT6 Gb
●Explosion proof certificate number: CNEx14.1674
●Protection level: IP65
3、 Product parameters
Detect gas |
Dimethoxymethane (also known as methylene dimethyl ether, dimethyl formaldehyde, formaldehyde) |
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chemical formula |
C3H8O2 |
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Detection Principle |
PIDOptoelectronic ion type, semiconductor type, catalytic combustion type, infrared type |
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Range |
0-10, 50, 100, 500, 1000, 5000PPM, 0-100% LEL (please call for more ranges) |
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Resolution |
0.01、 0.1, 1PPM, 0.1% LEL optional (depending on range and sensor) |
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detection |
Gas diffusion type (can be upgraded to pipeline type or pump suction type for free) |
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Installation method |
Install against the wall (closest to the gas leak source) |
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output signal |
420mA current signal (optional 0-5V, RS485, RS232, GRPS, etc.) |
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Design standards |
GB 50493-2009Design Specification for Combustible Gas and Toxic Gas Detection and Alarm in Petrochemical Enterprises GBZ 2.1-2007Occupational Exposure Limits for Hazardous Factors in the Workplace |
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Execution standards |
GB3836.1-2010Electrical equipment for explosive gas atmospheres - Part 1: General requirements GB3836.2-2010Electrical equipment for explosive gas environments - Part 2: Explosion proof type "d" Q/SGA 01-2014Enterprise Execution Standards of Shenzhen Guoan Electronic Technology Co., Ltd |
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Level |
Industrial grade |
Display mode |
liquid crystal display |
working voltage |
DC 24V |
Shell material |
Aluminum alloy casting body |
Accuracy |
≤±3% |
audible and visual alarm |
LEDLamp+≥ 85dB (optional) |
response time |
≤20S(T90) |
relay |
2Group (1A/24VDC) (optional) |
Repeatability |
≤±1% |
Infrared remote controller |
Support (optional) |
linearity error |
≤±1% |
Explosion proof grade |
ExdⅡCT6 Gb |
zero drift |
≤± 1% (F.S/year) |
Explosion proof certificate number |
CNEx14.1674 |
operation temperature |
~+50℃ (please consult for special requirements) |
protection grade |
IP65 |
Working humidity |
≤ 98% RH without condensation |
CEauthentication |
have |
Working pressure |
86~106Kpa |
ROHSauthentication |
have |
Power consumption |
Based on the detection principle |
Measurement certificate |
optional |
Size |
168×195×93mm |
Line system |
2Line or 3-line (default 3-line) |
Coverage radius |
≤ 7.5 meters |
Fixed hole |
2individual |
Weight |
About 1.5Kg |
Import and export lines |
M20*1.5 |
life |
2~10 years (depending on the sensor) |
Factory recovery |
have |
Attachment |
Packaging box, instruction manual, certificate of conformity, delivery note, one copy each |
4、 Application location
Petroleum and petrochemical, chemical plants, smelters, steel plants, coal plants, thermal power plants, water plants, pharmaceutical workshops, tobacco companies, atmospheric environment monitoring, scientific research institutions, building construction, fire alarm, sewage treatment, industrial process control, boiler rooms, garbage treatment plants, underground tunnels, oil pipelines, gas stations, underground pipeline maintenance, indoor air quality testing, food processing, sterilization and disinfection, refrigerated warehouses、Manufacturing of pesticides, fertilizers, insecticides, etc.
5、 Installation location
AboutdimethoxymethaneHow to install a gas detectordimethoxymethaneFor questions such as how to fix the gas alarm, please consult the sales personnel of Shenzhen Guoan!
※ Precautions
1)We need to fully consider the issue of gas specific gravity: lighter than air should be installed at high places, and heavier than air should be installed at low places.
2)The closer the installation location is to the leakage source, the better
6、 Product price
aboutdimethoxymethaneHow much does the gas detector costdimethoxymethaneWhich is the best gas transmitterdimethoxymethaneHow to use gas detectorsdimethoxymethaneFor questions such as how to calibrate the gas leak alarm, please consult the sales personnel of Shenzhen Guoan!
7、 Product Guide
Shenzhen Guoan also has portable, diffusion, pump suction, and handheld modelsdimethoxymethaneGas detector(with data storage)、 Gas sensors that output signals such as 4-20mA, RS-485, RS-232, 0-5V, etcdimethoxymethaneGas detection modules can be provided!
8、 Common gas selection
※Gas and range not listed, please call for consultation!