The PID is a highly sensitive and versatile detector, and the PID can be viewed as a “low concentration LEL detector”. If you look at toxic gases and vapors as a big river, even if you swim into the river, the LEL detector may not respond, and the PID has already told you when you have just wet your feet.

  What are the advantages of PID sensors?

  1) High precision

   A high-precision photoionization sensor that detects organic gases at the ppb level (parts per billion). A general photoionization gas sensor can detect ppm level (parts per million) of organic gas, and the accuracy exceeds that of infrared sensors, and most commonly used sensors.

  2) Non-destructive to the detection gas

  The photoionization sensor ionizes the gas after it is sucked in, and the ions formed by the gas molecules form the original gas molecules after the discharge, and are non-destructive to the original gas molecules.

  3) Fast response and long life

  In addition to the gas detection system, after a period of warm-up after power-on, under normal working conditions, the photo-ion gas sensor can react almost in real time and can be continuously tested. When testing dangerous gases, it is of great significance to ensure the health of the testing personnel.

Generally, the life of an ultraviolet lamp, in thousands of hours, the photoion sensor can work normally during this period, and has a long service life.

  4) Wide range of applications

  Photoion ion sensors are detectable for most organic and some inorganic gases. Can be widely used in chemical, transportation, military, aerospace and other fields.

Since the photoionization gas sensor is particularly sensitive to changes in the concentration of the analyte, it plays an important role in initial personal protection confirmation, leakage area confirmation, and contamination removal.