First, pay attention to regular calibration and testing
The toxic and harmful gas detectors are also measured in a relatively comparative manner, as are other analytical instruments: the instrument is first calibrated with a zero gas and a standard concentration of gas, and a standard curve is stored in the instrument. During the measurement, the instrument compares the electrical signal generated by the gas concentration to be measured with the electrical signal of the standard concentration, and calculates an accurate gas concentration value. Therefore, zero calibration of the instrument at any time and regular calibration of the instrument are essential tasks to ensure accurate measurement of the instrument. It should be noted that many gas detectors can replace the detection sensor at present, but this does not mean that one detector can be equipped with different detector probes at any time. Whenever the probe is replaced, in addition to a certain sensor activation time, the instrument must be recalibrated. In addition, it is recommended that the instrument be responsive to the instrument before it is used to ensure that the instrument actually protects.
Second, pay attention to the detection interference between various sensors
In general, each sensor corresponds to a specific test gas, but any gas detector cannot be absolutely special. Therefore, when selecting a gas sensor, it should be as aware as possible that other gases interfere with the detection of the sensor to ensure its accurate detection of a specific gas.
Third, pay attention to the life of various types of sensors
All kinds of gas sensors have a certain service life, that is, life. Generally speaking, in portable instruments, LEL sensors have a long life and can generally be used for about three years; photoionization detectors have a life span of four years or longer; electrochemical specific gas sensors have a relatively short life span. In one to two years; the life of the oxygen sensor is the shortest, about a year or so. The life of an electrochemical sensor depends on the dryness of the electrolyte, so if it is not used for a long time, sealing it in a lower temperature environment can extend the service life. Fixed instruments have a longer life due to their relatively large size. Therefore, the sensor should be tested at any time, as much as possible during the life of the sensor, and if it fails, it should be replaced in time.
Fourth, pay attention to the concentration measurement range of the test instrument
All types of toxic and hazardous gas detectors have their own fixed detection range. Only when the measurement is completed within its measurement range can the instrument be accurately measured. If the measurement is exceeded for a long time beyond the measurement range, it may cause permanent damage to the sensor.
For example, if the LEL detector is used in an environment with more than 100% LEL, it is possible to completely burn the sensor. Toxic gas detectors can cause damage when used for long periods of time at higher concentrations. Therefore, if the stationary instrument emits an over-limit signal during use, the measurement circuit should be turned off immediately to ensure the safety of the sensor.
Since the sale of the flammable gas detector, the customer has been given a network level, free maintenance and gas calibration every year, and after receiving the customer's call, it will be reflected within 8 hours, and the customer service policy will be reached within 24 hours, which will ensure yours. interest. The price of the flammable gas detector is customer-centric and tailored to the customer's point of view. Can provide customers with the best installation solution, and will be superior in quality and price than the equivalent products! The whole machine is designed according to national standards, with reasonable design, stable performance, high precision, strong anti-interference ability, simple hardware structure and rich software functions. The price of flammable gas detector is provided by Jinan Juxin Security Equipment Co., Ltd., one-stop product supply and service to meet the various needs and requirements of customers. Please call our company at 0531-88326947 15194186651 Contact: Duan Zhiyan or visit the company website
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