Oxygen and nitrogen analyzer
Brief description:
1. When the oxygen and nitrogen analyzer is running at high speed, static sparks will be generated. If the materials inside contain flammable and volatile gases such as alcohols, benzenes, esters, etc., there will be a safety hazard of explosion.
2. When the oxygen and nitrogen analyzer is running at high speed, static sparks will be generated. If the materials inside contain flammable and volatile gases such as alcohols, benzenes, esters, etc., there will be a safety hazard of explosion.
3. At present, most of the solutions in the industry adopt nitrogen replacement. The length of replacement time is based on production experience, the second is to look at the nitrogen pressure value, and the third is to continuously carry out nitrogen protection; however, the above solutions are not scientific, and cannot accurately feedback the oxygen value in the centrifuge, or cause a waste of nitrogen resources, resulting in frequent centrifuge explosion accidents.
In view of the above situation, our company adopts pre-stage sampling pretreatment + on-site numerical display + automatic nitrogen filling/cutting off the centrifuge power supply, and can also pass 4-20mA signal according to the supporting needs
Application field:
Nitrogen filling protection system for closed centrifuge;
Nitrogen filling protection in various process processes;
Nitrogen filling protection system for storage tanks;
Product features:
1.Customized pretreatment: backflush, acid-base neutralization, organic matter removal, dewatering, cooling, drying, voltage stabilization, constant current, etc. of sample gas.
2.Safety: When the oxygen concentration value exceeds the first-level preset alarm value, the electromagnetic adjustment of nitrogen filling and replacement is automatically turned on until the value drops to a safe range; when it exceeds the second-level preset alarm value, the power supply is automatically cut off to stop the centrifuge.
3.Applicable explosion-proof area: intrinsically safe explosion-proof composite instrument, meeting the requirements of strict use areas.
4.Nitrogen flow control: equipped with a nitrogen control box, when the oxygen concentration value is within the safe range, it automatically cuts off the large flow of nitrogen to achieve continuous supply of small flow, meeting the micro-positive pressure in the centrifuge.
5.Module platform: The number and function of pretreatment can be freely adjusted according to actual use. Wider adaptability.
6.Easy maintenance: one-button calibration/calibration, tool-free disassembly and maintenance, hot-swap replacement of sensor components.
7.Intelligent display: self-luminous OLED display, wide multi-angle observation.
Technical parameters
| Model |
XMB-YW-200 |
| Measurement range |
0~25%VOL |
| Detection principle |
fluorescence quenching, electrochemical detection accuracy: 0.1%VOL |
| Explosion-proof grade |
ExdibIICT6Gb |
| Protection grade |
IP67 |
| Response time |
T90<20S |
| Output |
4-20mA, RS485, HART protocol switch output: 4 groups (2 groups for use and 2 groups for standby) |
| Rated voltage |
DC24V |
| Acquisition |
16-bit ADC digital-to-analog conversion |
Oxygen and nitrogen analyzer is a device used to detect oxygen and nitrogen in gas, which is widely used in various industries. Its working principle is based on sensor technology, using physical, chemical and other methods to detect gas components. Let's introduce the working principle of oxygen and nitrogen analyzer in detail.
Composition of oxygen and nitrogen analyzer:
The oxygen and nitrogen analyzer is mainly composed of three parts: gas sampling, data processing and result display system. Among them, the gas sampling part includes equipment such as air intake pipe, sampling valve, filter, rotor bottle, etc.; the data processing part includes equipment such as circuit board, signal processor, display screen, etc.; the result display part uses LCD screen and LED indicator to intuitively display the test results.
Working principle of oxygen and nitrogen analyzer
Gas sampling
The oxygen and nitrogen analyzer collects a certain volume of gas from the measured gas through the gas sampling part, and then sends it to the
analyzer for component analysis. During the sampling process, it is necessary to pay attention to blocking the entry of pollutants to avoid affecting the accuracy of the test results.
Gas analysis
After the gas enters the analyzer, it is processed by the sensor module and converted into an electrical signal output, and synthesized, analyzed and calculated by the signal processor. According to the differences in the physical properties of different gases in the sampled gas, different sensor technologies can be used to detect its composition. Among them, commonly used sensor technologies include electrochemical method, optical method, thermal conductivity method, infrared method, etc.
Data processing
The circuit board inside the analyzer will receive the electrical signals sent by each sensor module and process them. In addition, functions such as data storage and transmission can be realized through program design.
Result display
Finally, according to the test results, the oxygen and nitrogen analyzer will intuitively display the corresponding test results through the LCD screen and LED indicator. Users can control the equipment through the parameter
adjustment keys on the screen to achieve more accurate testing.
Application scope
Oxygen and nitrogen analyzers are widely used in aviation, aerospace, medical, biological, chemical, pharmaceutical and other fields. For example, in the pharmaceutical industry, oxygen and nitrogen analyzers can detect oxygen content to ensure product quality; in the food industry, oxygen and nitrogen analyzers can detect the content of oxygen and nitrogen in bottled food to ensure the shelf life of the product.
Precautions
A pure gas source needs to be used during the test to avoid contaminating the test results.
The accuracy of the test instrument should be calibrated regularly to ensure the reliability of the test results.
Before use, it is necessary to set it correctly according to the relevant operating manual to ensure the normal operation of the test instrument.
After the test, the sampling pipeline and other parts should be cleaned in time, and the test instrument should be properly kept.
Conclusion:
The oxygen and nitrogen analyzer is a device that analyzes gas composition based on sensor technology, with the characteristics of high accuracy, fast response, and easy use. By using the oxygen and nitrogen analyzer reasonably, it can provide more accurate data support for various industries and provide strong guarantees for product development and environmental protection.
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