Low concentration VOC detection with PID gas detector
PID gas detector can detect low concentration VOC
For gases and vapors that cannot be detected by PID gas detectors, including radioactive gases (Rm), air (N2, O2, CO2, H2O), common toxic gases (such as CO, SO2), natural gas (methane), acidic gases (such as HCI, HF, HNO3), Freon gases, ozone, etc.
The PID gas detector is capable of detecting extremely low concentrations of volatile organic compounds with high accuracy, and can meet the quantitative detection of low concentrations of benzene. It is a non-destructive testing instrument
PID gas detector can detect low concentration VOC
The calibration of a gas detector is based on the ion current corresponding to a known concentration of gas. The instrument response of other gases is related to their own properties, and a reading of 10ppm indicates that the instrument has generated an ion current that is the same as the 10ppm calibration gas. The actual concentration of other gases that obtain this reading may be higher or lower than this value. Since the PID reading is always related to the calibration gas, this reading should be expressed as the ppm unit related to the calibration gas, and the actual measured concentration value cannot be directly used unless the detected pollutant is the same as the calibration gas, or the instrument reading has been corrected. Usually, PID uses isobutylene for calibration, because in the VOC detectable by PID, the sensor's response sensitivity to isobutylene is at an average level, which is relatively easy to obtain
PID gas detector can detect low concentration VOC
The PID gas detector is mainly a PID or photoionization gas sensor, which can detect extremely low concentrations of volatile organic compounds and other toxic gases. Especially for the sensitive detection of VOC, which is a harmful substance in gases, its effective monitoring plays an important role.
The use of PID photoionization sensors in gas detection instruments ensures the accuracy and precision of measurement data, and can measure VOC or other toxic gases ranging from 0.1 to 2000 ppm. PID is a highly sensitive wide range detector that can be seen as a "low concentration LEL detector"
