Calibration of gas detection alarms - portable dilution devices case

A gas detection alarm is a critical safety device, used to detect a specific gas concentration and issue an alarm, widely used in industrial, commercial and domestic Settings. Through timely detection and alarm, the gas detection alarm can protect people's life and property safety and prevent the occurrence of major accidents such as fire and explosion. Small to the family, large to the society, should pay attention to and widely use the gas detection alarm to ensure the creation of a safe environment. Gas detection alarm bears the important responsibility of warning and preventing personnel's own safety and property safety in advance, then how to determine the accuracy and sensitivity of the measured value of the gas detection alarm? Does it need to be calibrated or calibrated regularly? Gas detection alarm calibration is very important, calibration can ensure the accuracy and reliability of the alarm, detect and correct possible faults or problems of the alarm. If the calibration result is abnormal, it means that the alarm has quality defects, there is a safety hazard when measuring, and it can not be used in the market; At the same time, in view of the performance of the sensor in the alarm may change over time, or be affected by environmental factors during use, the measured value will be biased. Regular calibration can detect the deviation of the instrument, timely maintenance or replacement of parts to correct the cause of the deviation, to ensure the consistency and credibility of the measurement results. The frequency of calibration usually depends on the type of alarm, the conditions of use and the manufacturer's recommendations. In general, regular calibration intervals can be daily, weekly, monthly, or yearly. Some high-precision sirens may require more frequent calibration. Therefore, calibration, as well as regular calibration of gas detection alarms, is a necessary step in order to obtain accurate and reliable gas alarm results.

The core products of gas detection alarm calibration device are: portable dilution device/gas distribution device its main function is to dilute high concentration standard gas to low concentration gas, to test the response of each point of the gas detector; Or several gases are mixed into mixed gases to test the response of the detector to different concentrations of different components, or the detector for anti-interference test. Finally determine the sensitivity and accuracy of the gas detector or alarm. Portable Dynamic Gas Mixer is the few portable dilution device on the market with dilution ratio expansion uncertainty better than 0.5% (k=2). Weighing only 8 kg, the device has a built-in battery, micro air pump and filter, making it lightweight and practical. The device is calibrated by the Chinese Academy of Metrology