How long is the gas detector calibration cycle?
1. The normal calibration time of the gas detector is no more than one year, and the period from the product leaving the factory to regular maintenance is one year. It is mainly based on the usage time of the gas sensor. The correction is to avoid the decrease in sensitivity of the monitoring sensor. If the gas detector fails to detect the gas concentration in time when the gas concentration increases, it is because the sensitivity of the gas detector decreases or there is a problem with the instrument calibration. .
2. Establish a calibration cycle based on the location, frequency of use and impact on the production process of the gas detector. The calibration cycle can be 3 months, 6 months, or 12 months.
3. The new sensor should be exposed to various environments, even if it is not suitable for the environment. After using it for up to ten days, daily sensor testing should be carried out in the atmospheric environment.
4. When there are operational changes or environmental changes in the gas detector, it should be rechecked.
Strictly speaking, frequent calibration is required. Some local work safety bureaus have strict requirements for the use of gas detectors. Some require calibration once a month, some three months, and some once a year. Most places do not have strict requirements for the calibration of detectors. You can pay a little attention when using it and conduct simple tests on the instrument frequently. If you find that the instrument is obviously insensitive, you can send it back to the seller for professional technical support. Judgment and maintenance. If the instrument is in good condition and has been used for more than 3 years, it is best to send it back to the seller for evaluation to see if the instrument can still achieve the initial testing results. Professional technical guidance will provide usage advice and maintenance.
The reasons why gas detectors need to be calibrated regularly are as follows:
1. The accuracy of the detector mainly depends on the sensor. The Electrochemical gas sensor and Catalytic gas Sensor will be affected by certain substances in the environment during use and gradually change or even become poisoned. Therefore, regular calibration of the gas detector is completely necessary. of.
2. The accuracy of the instrument is an important prerequisite for issuing an alarm when the concentration of toxic and harmful gases or combustible gases in the monitored environment reaches the preset alarm limit. Correct and timely alarms are the guarantee for personnel safety and production safety.
3. In order to ensure that the error of the instrument test results does not exceed the normal range, frequent calibration is also necessary. Just like our watches, we often correct them with the standard time to ensure the accuracy of the time displayed by the watch. For gas detectors whose detection results are designed with the safety of personnel in mind, accuracy is even more important.
4. At present, all gas detectors have not got rid of the relative measurement method. Because of this, timely maintenance and calibration are required. Only through correct calibration required by the manufacturer can the accuracy of the results detected by the instrument be obtained. ensure.
-450x320.jpg)
Industrial oxygen sensor development
Industrial oxygen sensors are indispensable equipment in industrial production and are widely used in metallurgy, chemical industry, electric power, aerospace and other fields.
-450x320.jpg)
Methane gas sensor application scenarios
Methane gas sensor is a sensor that can detect and measure methane concentration. It is widely used in gas monitoring, industrial automation, security monitoring and other fields.
Characteristics of Semiconductor and Electrochemical Formaldehyde Sensors
Formaldehyde gas is one of the carcinogens recognized by the World Health Organization. According to statistical results, house decoration is the main culprit of childhood leukemia.
-450x320.jpg)
How to prevent and control sulfur dioxide pollution in the air
Sulfur dioxide is one of the most common pollutants in the air, and its emissions are increasing year by year. It not only causes harm to human health, but also causes pollution to the environment.
-450x320.jpg)
Gas sensor classification and principle
Gas sensors are classified based on detection targets. Any sensor used to detect gas composition and concentration can be called a gas sensor.