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Product Introduction
The MA11-EA4322A trace oxygen analyzer is the latest high-precision online oxygen content detection and analysis instrument developed by our company. This analyzer adopts imported electrochemical oxygen sensors combined with microcontroller control technology. It has the advantages of advanced technology, high precision, fast response, stable performance, complete functions, easy operation, and continuous gas analysis process. Widely used in industries such as air separation for nitrogen production, petrochemicals, metallurgy, electronics and power, and healthcare that require detection and analysis of oxygen content in various mixed gases.
Product dimension diagram
Technical Parameter
Working principle | electrochemistry |
Display mode | 4.3-inch touch screen |
detection range | 0~10/100/1000ppm O2 |
measurement accuracy | 0.01~9.99ppm≤±5% FS |
| 10~99.9ppm≤±2% FS |
| 100~1000ppm≤±1% FS |
resolution | 0.01ppm O2 |
repeatability | ±1% FS |
control output | Non-Isolated4~20mA DC |
| Non-Isolated0~10V DC |
| 2-channel programmable relay alarm output (maximum load 5A) |
Communication method | RS232，RS485，Ethernet |
Working power supply | AC85~264V 50/60Hz |
Environmental temperature and humidity | －5℃~+50℃,＜80％ RH |
Sample gas temperature | -10℃~+50℃ |
Sampling method | Suction type |
Sample gas flow rate | 0.1~1L/min |
Sample gas pressure | Micro positive pressure, micro negative pressure or positive pressure |
background gas | Mixed gas of nitrogen, inert gas, and oxygen |
Specification and size | 138mm×276mm×297mm（H×W×D） |
Dimension | 134mm×232mm（H×W） |
service life | ＞4 years (under normal usage conditions) |
Gas interface | Air inlet: Diameter 4mm inside and 6mm outside, stainless steel quick twist |
| Air outlet: inner diameter 2.5mm, outer diameter 4mm stainless steel quick twist |
Installation method | Placed or embedded |
Product Features
1. The instrument adopts a 4.3-inch touch screen display, which is easy to operate and has clear display;
2. The instrument is equipped with RS-232 and RS485 communication ports, and is compatible with Modbus TCP
Ethernet interface of the protocol. Multiple communication ports enable users to easily access the Internet of Things;
3. The analyzer can communicate unidirectionally or bidirectionally with the upper computer.
4. The original imported electrochemical oxygen sensor has high measurement accuracy, fast response, and long service life;
5. Featuring a patented sensor chamber for easy on-site sensor replacement by users;
6. The sensor chamber is equipped with temperature and pressure monitoring modules. The instrument is equipped with overvoltage protection and automatic pressure compensation function;
7. Over range protection: When the oxygen concentration exceeds the set upper limit, the gas path automatically switches to avoid the sensor being in a high oxygen concentration environment for a long time, thereby extending the service life of the oxygen sensor;
8. The analyzer is equipped with an original imported air pump, which works stably and has a long service life;