Calibration of toxic gas and hazardous gas detectors
Gas detector has a variety of classifications, one of which is the toxic and hazardous gas detector. Toxic and hazardous gas detector is mainly used in the chemical industry and coal mining industry and other fields, especially in a new environment before doing a gas test is very necessary. Gas detectors can effectively detect the concentration of gases to ensure that we work in a safe environment!
Generally speaking, each sensor corresponds to a specific detected gas, but any kind of gas detector can not be special effects. Therefore, in the selection of a gas sensor, should be as much as possible to understand the other gases on the detection of the sensor interference, in order to ensure that it for the accurate detection of specific gases.
Toxic and hazardous gas detector is also the same as other analytical instruments, are used to determine the method of relative comparison: first of all, a zero gas and a standard concentration of gas calibration of the instrument to get the standard curve stored in the instrument, the measurement, the instrument will be measured gas concentration of the electrical signals generated by the standard concentration of electrical signals with the standard comparison, the calculation to get the accurate value of the gas concentration. Therefore, zeroing the instrument at any time and calibrating the instrument regularly are indispensable to ensure the accuracy of the measurement. It is important to note that many gas detectors are now available with interchangeable sensors, but this does not mean that a detector can be fitted with a different detector probe at any time.
Whenever a probe is changed, the instrument must be recalibrated in addition to the sensor activation time. In addition, it is recommended that all types of instruments be response tested with a standard gas before use to ensure that the instrument is truly protective. If such instruments are used as alarms in open situations, such as an open work shop, a body-worn diffusion gas detector can be used as it provides a continuous, real-time, accurate display of the concentration of toxic and hazardous gases at the site. Fixed detector is generally two-body type, there are sensors and transmission composed of the detection head as a whole installed in the detection site, there are circuits, power supply and display alarm device composed of secondary instrumentation as a whole installed in the safety of the place, easy to monitor. Its detection principle as described in the previous section, only in the process and technology is more suitable for fixed detection of the requirements of continuous, long-term stability and other characteristics.
In short, the calculation of the gas detector is a very complex process, in the detection process requires us to have a lot of patience, only have enough patience to ensure that there will not be any problem in the detection process. If you have any problems related to the use of the instrument, please contact our technical maintenance department in time.
