as we all know, nitrogen is an inert gas, and the general monitoring methods do not respond. measuring nitrogen indirectly reflects the nitrogen content by measuring the oxygen content, because the air is generally nitrogen and oxygen, the volume fraction of nitrogen is about 78%, and the volume fraction of oxygen is about 21%. The nitrogen detector is used in nitrogen concentration detection and concentration alarm, can accurately detect the concentration of nitrogen and in the field display real-time concentration value, standard signal output, with signal stability, sensitivity and high precision, flameproof connection mode is suitable for all kinds of dangerous places. So what are the characteristics of nitrogen detectors ? The following is a brief introduction by yi yun Tian:

Features of Nitrogen Detector:

1, explosion-proof, lightning protection, anti-static, reverse connection, anti-EMI, EMC electromagnetic interference, anti-pulse surge current impact.

2, conform to the new national standard 1 and obtain CMC measuring instrument production license, explosion-proof certification and other qualifications.

3, three-wire or 2 (IV)-wire 4-20mA standard signal output, voltage output, 2 sets of relay switching values.

4, with standard bus RS485 output (RTU format), optional integrated sound and light alarm.

5. Optional wired transmission, LAN, Internet, wireless transmission (2km, 5km, unlimited distance).

6. The wireless transmission mode can be 433, GPRS, WIFI or other modes.

7. The standard infrared remote controller can be operated without opening the cover in dangerous situations. The remote control distance is 15 meters, which is simple and practical.

8. Each unit can be switched to each other, automatically tracking the zero point to prevent drift, and multi-level calibration. Support OEM or ODM customization.

9. It can communicate with the computer, monitor the concentration of the field probe in real time on the computer through the upper computer, and store, analyze and print the data on the computer.

In summary, it is the characteristic of the nitrogen detector. Nitrogen detector uses oxygen measurement principle, The oxygen concentration in the gas is converted into an electrical signal by the oxygen sensor, and the nitrogen content is calculated by the subtracter, and the percentage of nitrogen in the measured gas is directly displayed. With the nitrogen detector, real-time monitoring of air quality, so that harmful substances early detection, early prevention, to avoid harm to the body.