Brief introduction
SGA-400/700Series intelligent dimethoxymethane gas sensor moduleIt is a standardized and modular gas detection product independently developed and produced by Shenzhen Guoan Electronics; Mainly to solve problems such as the wide variety of gas detection types, incompatible gas sensors of various brands, complex production calibration, and limited replacement of core components; After adopting our SGA-400/700 series intelligent dimethoxymethane gas sensor, we only need to develop one product to quickly respond to customers' needs for detecting different gas types; And the production process is simplified, ready to use, without the need for re calibration, greatly reducing the R&D and production costs of enterprises, and the product quality can be immediately improved to the international first-class level.
SGA-400A700A series intelligent dimethoxymethane gas sensor moduleSince its launch in 2015, it has received unanimous praise from customers for its unique innovative concept and reliable performance; In order to pursue better quality and user experience, Shenzhen Guoan successively launched four products in the SGA-400B/700B/700C/700D series in 2018. Please refer to the following list for specific differences;
SGA-400/700Series intelligent dimethoxymethane gas sensor moduleAlthough it is compact and easy to use, it is filled with cutting-edge technology; The specific detection principle is to first amplify the signal, process the data, and perform intelligent calculations on the imported dimethoxymethane gas sensor from abroad, and then perform full range three-point temperature and humidity compensation. Then use high-precision standard gases for data calibration. Therefore, it has a smaller volume, lower price, and better and more stable performance; After the customer purchases, there is no need for any operation or re calibration. The standard signal (any voltage between 0-5V and TTL digital signal) can be directly collected and processed, and uploaded to the upper computer system such as PLC, DCS, DDC, data acquisition instrument, etc; Convenient, fast, and cost-effective;The product is widely used in scientific research, data collection, gas monitoring, process control, Internet of Things, drones, industrial robots, grid based atmospheric environment monitoring devices, micro air quality monitoring stations, toxic gas detection and other fields.
2、 Product Features
●Patent appearance, patent technology;
●Small size, light weight, and powerful functionality;
●Calibrated, no need for secondary development, ready to use upon purchase;
●Once the product is docked, it can correspond toOver 1000 types of gas detection, once and for all;
●Product standardization, any gas can be made into a uniform size structure, signal output, and usage method;
●Inherent safety circuit design, safe and reliable;
●Compatible with infrared, electrochemical, catalytic, semiconductorSensors based on different technical principles such as PID, with powerful functions;
●Equipped with temperature compensation and data calibration functions, the product is stable and consistent;
●Built in world-class brand gas sensors, with sensitive response, accurate measurement, and long lifespan;
●Dual signal output (voltage)+TTL digital signal, convenient for customers to use;
●Customized gold-plated socket, easy to plug and unplug, securely fixed;
●Gas fluid engineering design, smooth intake;
●There are two sampling methods to choose from: natural diffusion and active inhalation;
●Free testing software and communication protocols are provided to facilitate product debugging and system integration;
●Internal data and instructions are open, making it convenient for customers to make secondary corrections or changes;
●Multiple sets of signal conversion boards can be optionally configured to output signals from multiple modules in a unified mannerRS485, RS232, and USB data interfaces;
●The unanimous choice of tens of thousands of customers;
IIIProduct parameters
Model number |
SGA-400A-C3H8O2 |
SGA-400B-C3H8O2 |
SGA-700A-C3H8O2 |
SGA-700B-C3H8O2 |
SGA-700C-C3H8O2 |
SGA-700D-C3H8O2 |
Image reference |
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listing date |
2015 model |
2018 model |
2015 model |
2018 model |
2015 model |
2018 model |
Product attributes |
femtodimethoxymethaneGas sensor module |
New Ultra MicrodimethoxymethaneGas sensor module |
High precision typedimethoxymethaneGas sensor module |
New high precisiondimethoxymethaneGas sensor module |
Integrated pump suctiondimethoxymethaneGas sensor module (upper and lower ventilation) |
Integrated pump suctiondimethoxymethaneGas sensor module (left and right ventilation) |
Characteristics |
The smallest intelligent gas sensor in history, calibrated and plug and play |
InSGA-400AIncrease the diameter under the foundation1mm, height reduction1mmCircuit upgrade for greater precision |
The most accurate and smallest volume intelligent gas sensor in history, capable of recognizing1ppblevel |
existSGA-700AUpgrade the circuit, optimize the size, and increase the thickness and length of the pins based on the foundation. More stable performance |
Integrated pump suction design, tightly connected without air leakage. |
Integrated pump suction design, tightly connected without air leakage. |
output signal |
5V:0-5Vvoltage+ TTL |
5V:0-5Vvoltage+ TTL |
5V:0-5Vvoltage+ TTLperhaps24V:4-20mA+TTL |
5V:0-5Vvoltage+ TTL |
5V:0-5Vvoltage+ TTLperhaps24V:4-20mA+TTL |
5V:0-5Vvoltage+ TTL |
Diameter |
21.5mm |
22.5mm |
33.5mm |
34.5mm |
33.5mm |
33.5mm |
Height |
31mm |
30mm |
31mm |
30mm |
49mm |
49mm |
pin count |
7individual |
5individual |
7individual |
5individual |
7individual |
5individual |
Pin length |
3.5mm |
5.5mm |
3.5mm |
5.5mm |
3.5mm |
5.5mm |
Pin diameter |
1mm |
1.5mm |
1mm |
1.5mm |
1mm |
1.5mm |
Surface Treatment |
Matte sand |
plating |
Matte sand |
plating |
Matte sand |
plating |
Weight |
20g |
25g |
30g |
35g |
45g |
45g |
Full-size drawing |
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Detect gas |
dimethoxymethane |
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chemical formula |
C3H8O2 |
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Detection Principle |
Electrochemistry, catalytic combustion, infrared radiation PID、 Semiconductors, optical waveguides (depending on the specific gas) |
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Detection range |
0-1, 5, 10, 50, 100, 500, 1000, 5000, 10000 (depending on the sensor and technical principles) |
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Resolution |
0.001, 0.01, 0.1, 1, 2, 5 (depending on the sensor and technical principles) |
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Unit |
PPM、%LEL、%VOL、mg/m3、ug/m3 |
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operation temperature |
-20 ℃~+50 ℃ (please consult for special requirements) |
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Working humidity |
≤ 95% RH without condensation |
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Working pressure |
86~106Kpa |
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Design standards |
GB50493-2009 "Design Specification for Combustible Gas and Toxic Gas Detection and Alarm in Petrochemical Enterprises" Environmental Air Quality Standards (GB3095-2012) |
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Execution standards |
GB3836.1-2010 Electrical Equipment for Explosive Gas Atmosphere Part 1: General Requirements GB3836.2-2010 "Electrical equipment for explosive gas atmospheres - Part 2: Explosion proof type" d "" Q/SGA 01-2014 "Enterprise Execution Standard of Shenzhen Guoan Electronic Technology Co., Ltd |
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Digital signal format |
Data bit: 8 Stop bit: 1 Check bit: None |
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working voltage |
5V±1% |
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Power consumption |
Electrochemistry: ≤ 50mA Catalytic combustion/Infrared/PID/Semiconductor: ≤ 100mA |
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Accuracy |
≤±3% |
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response time |
≤30S(T90) |
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Repeatability |
≤±2% |
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linearity error |
≤±2% |
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zero drift |
≤± 1% (F.S/year) |
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Shell material |
aluminum alloy |
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Surface Treatment |
plating |
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Explosion proof grade |
Intrinsically Safe |
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protection grade |
IP55 |
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Warm-up time |
30S |
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Baud rate |
9600 |
4、 Pin positioning diagram
2015 7-pin model
2018 model 5-pin
5、 Precautions for use
The pins of the SGA-400/700 series intelligent gas sensor module are installed on the sensor socket using a plug-in method. To ensure reliable connection, a dedicated socket should be selected; The sockets should be arranged according to the corresponding pins, installed vertically, and welded firmly;
2. According to the user's special requirements, external lead method can be used instead of pin insertion and extraction. The lead model is ZR-BVR0.75, and the wire length generally does not exceed 150mm;
3. In work sites with explosion-proof requirements, the power supply of the equipment connected to the sensor must be turned off before installation.
6、 Application location
Atmospheric environment monitoring, unmanned aerial vehicles, industrial robots, instrument research and development, process control, emergency equipment, gas transmitters, gas analyzers, real-time monitoring of flue gas and exhaust emissions, Internet of Things, etc.
7、 Naming rules for intelligent gas sensor modules
8、 Value added services
Common Gas Selection Table
※ For more gases and ranges, please consult the sales personnel of Shenzhen Guoan for details!