The Importance of Gas Detectors Calibration

In our daily production and working environment, there are a number of potentially dangerous and toxic gases, it is important to understand and install gas detectors, and regular calibration of gas detectors is even more critical to ensure their effectiveness and reliability.

Why should gas detectors be calibrated regularly?

With the continuous development of industrialization, gas detectors play an increasingly important role in production safety. However, the accuracy of gas detectors can be compromised due to reasons such as improper use or aging equipment. Therefore, calibration of gas detectors becomes particularly important.

By understanding the working principle of the gas detector, we know that the accuracy and sensitivity of the detector depends mainly on the sensor, the sensor is a consumable product, and its sensitivity will naturally decline every year under normal use;

In addition to the built-in gas sensor, other components also have a life expectancy, general industrial combustible gas detector used for 3 years after the need for timely replacement;

Gas detector in a long time in high temperature, high humidity, high pressure environment, the detection accuracy will be affected by the environment to produce deviation;

Definition of gas detector calibration

Gas detector calibration refers to the use of standard gases to compare and verify the measurement results of the gas detector to determine whether it is in normal working condition.

The calibration process requires the use of a high-precision gas standard device to compare the measurement results of the gas detector with the standard value, so as to determine its error range and make corresponding adjustments or repairs.

Gas detector calibration is a set of scientific management project, according to the types of gas detectors are different, the detector calibration is also different, the enterprise needs to be in accordance with the strict regulations of the standard system of management, there are detailed standards for the scientific basis:

Types of gas detector calibration

1、Routine calibration

Daily calibration is mainly by the equipment operators and equipment maintenance personnel in accordance with the standards set out in the sensory-based, once a day or once a week, the technical status of the equipment to check and monitor the operation content is simple, the operation time is relatively short; can be carried out in the operation of the equipment, the impact on production is not significant;

2、Periodic spot check calibration

In order to maintain the performance of the equipment, through professional technical engineers with special testing tools, every 6 months ~ 1 year regular sensitivity calibration, replacement of consumable parts and other items of comprehensive inspection and measurement, regular inspection to carry out the sensitivity calibration and testing and alarm-related checks (performance confirmation) operations, these items require the use of the actual gas (or test gases specified by the broadcasters);.

The need for gas detector calibration

The accuracy of gas detectors is directly related to production safety. If a gas detector fails to accurately detect the presence of dangerous gases, it will be difficult for a company to take effective safety measures, which may lead to accidents.

In addition, the accuracy of gas detectors can be affected as the equipment ages or becomes damaged. Therefore, regular calibration of gas detectors can ensure the accuracy of their measurements and guarantee production safety.

Be sure to calibrate your gas detector regularly

The response of a gas sensor will naturally drift based on time or environmental conditions, and the only way to ensure the accuracy of the meter’s measurements is through regular calibration.

Regular calibration can identify faulty gas alarms for your organization in a timely manner, improving the safety of your production process.

Case

A chemical enterprise in the equipment inspection found that some of the gas alarm readings and the actual concentration of deviation, so the enterprise immediately contacted the RIKEN meter calibration test, after professional calibration, the accuracy of the readings of these devices has been significantly improved, in the next production process, these devices in time to accurately find out several potential leakage events, to avoid possible safety accidents.

Why do gas calibration on site?

Through on-site maintenance observation, it is found that most of the customers do gas calibration to the instrument on-site, often just ventilate the testing instrument to see if the sensor’s sensitivity is in the standard gas range interval, instead of adjusting the calibration according to the actual standard gas concentration value, which will inevitably affect the life of the gas detector as well as the measurement accuracy.

In the field with the actual gas to do calibration, through the engineers on-site calibration, the gas detector in order to make the correct response to dangerous gases, by comparing the value with the standard gas to determine the range of error, and calibrate accordingly, so that the results of the gas detection, the accuracy can be ensured, which is the installation of the use of the gas detector is also the most direct purpose of the gas detector!

01, due to the calibration of different places (so that it stabilizes the environment has a difference equivalent to the calibration conditions are different) and the indication of the error caused by the need to take into full account;

02, Regarding the checking of detection and alarm (confirmation of performance), since this cannot be realized at the factory, the checking with actual gas (or test gas specified by the manufacturer) at the site must be considered. In order to ensure the function and performance during actual testing;

03, in particular, the stabilization of the venting state of the electrochemical sensor, gas permeable membrane, and electrode activity state] must be obtained at the actual installation site. Usually, the initial calibration after the sensor state is stabilized at the installation site (after a stabilization time has elapsed) is meaningful, and the check of the detection and alarms (confirmation of performance) is effective.

In any case, it is necessary to use the actual gas (or the test gas specified by the manufacturer) on site.

The sensitivity and accuracy of a gas detector, as an instrument for guarding the safety of people’s lives and property, is of paramount importance. Users should regularly check and calibrate the instrument during use to ensure good performance, and replace the instrument whose life span has expired in a timely manner.