EN-510 Portable Oxygen AnalyzerDetailed product description：

The EN-510 portable oxygen analyzer uses a completely sealed fuel pool oxygen sensor, which is currently one of the most advanced oxygen measurement methods internationally. The fuel pool oxygen sensor is composed of highly active oxygen electrodes and lead electrodes, immersed in a solution of KOH. At the cathode, oxygen is reduced to hydroxide ions, while at the anode, lead is oxidized. The KOH solution is separated from the outside by a polymer film, and the sample gas does not directly enter the sensor, so the solution and lead electrode do not need to be cleaned or replaced regularly. The oxygen molecules in the sample gas diffuse into the oxygen electrode through a polymer film for electrochemical reaction. The current generated in the electrochemical reaction is determined by the number of oxygen molecules diffusing into the oxygen electrode, and the diffusion rate of oxygen is proportional to the oxygen content in the sample gas. Therefore, the output signal size of the sensor is only related to the oxygen content in the sample gas, and is independent of the total amount of gas passing through the sensor. Through the connection of external circuits, the charge transfer in the reaction, that is, the magnitude of the current, is directly proportional to the oxygen participating in the reaction.
By using this method for oxygen measurement, it is possible to avoid the influence of reducing gases in the measured gas and eliminate many sample gas processing systems. It is faster than the old-fashioned "gold mesh lead" primary battery for oxygen measurement, without the need for a long start-up blow off process. The "gold mesh lead" primary battery sample gas directly enters the solution, resulting in a large amount of instrument maintenance, while the fuel cell method sample gas does not directly enter the solution, and the sensor can work very stably and reliably for a long time. In fact, fuel cell oxygen sensors are completely maintenance free. The EN-500 micro oxygen analyzer uses a fuel based oxygen sensor to measure oxygen, with fast instrument response and low maintenance.

Key Features:
The instrument adopts a new type of oxygen detector
Full Chinese operation menu
The instrument adopts a large screen LCD display screen
Real time clock display
Can be connected to a printer to achieve timed automatic printing
Capable of storing data at any time for testing purposes
Equipped with RS232 communication port, it can be connected to a computer to achieve real-time data transmission, data storage, curve trend chart, printing report and other functions
Can set upper and lower limit alarm points
The instrument has an automatic calibration function, ensuring long-term measurement accuracy
The instrument is equipped with a rechargeable battery, which can be used continuously for about 4 hours on a single charge.

Main technical indicators:
Measurement range: 0-25% O2
Accuracy: ± 0.5% FS
Minimum reading value: 0.01%
Response time: T90 less than 30 seconds
Sample gas pressure: less than 0.2Mpa
Sample gas flow rate: 300 milliliters per minute
Inlet temperature: 0-40 ℃
Environmental temperature: 0-40 ℃
Dimensions: 198 × 138 × 257mm (width × height × depth)
Rechargeable battery: can be used continuously for 24 hours after one charge
Charging power supply: 220VAC ± 10%, 50HZ ± 1HZ
Instrument weight: 2.0kg