How to set the zero point of the four-in-one gas detector and what are the steps?
As we all know, the four-in-one gas detector is a detection instrument currently specially used for dangerous environments and confined space entry detection. It can be flexibly configured as a single gas or multiple gas detectors and detect the following four gases at the same time: flammable gas, O2, CO and H2S, among which hydrogen sulfide and carbon monoxide gases can be matched with other gases according to the detection requirements of the site. Its unique chip technology greatly improves various performances such as response time and stability during gas detection, and at the same time greatly improves the battery service life. When we use a four-in-one gas detector, it is very necessary to set the zero point. This can reduce the occurrence of errors and accurately detect gases and obtain data. So do you know how to set the zero point of the four-in-one gas detector?
How to set the zero point of the four-in-one gas detector:
1. After turning on the computer, press the power button to enter the menu page.
2. Then, press the up and down keys to select menu items.
3. Select zero point setting, click the power button to enter, select gas, and check whether the number is 0.
4. If the value is not 0, enter the zero point fine adjustment from the menu, adjust the value to 0 through the addition and subtraction items, save the above to complete the zero point setting, and it can be used normally.
What is the daily maintenance work of the four-in-one gas detector?
1. Check the overall appearance of the gas detector and the integrity of the battery power. At the same time, in order to ensure the correctness of the detection, it is necessary to conduct a quick test to detect the correctness and accuracy of the instrument sensor's response to the gas.
2. Check the air tightness of the pump suction system. After opening the instrument, the air inlet terminal of the pump suction system was blocked. If the sampling probe rod points to the instrument and a pump flow obstruction alarm is sent, it means that the air tightness of the instrument pump system is normal, otherwise the instrument cannot be used.
3. The deviation correction of this portable gas detector is usually called calibration.
4. The filtration device of the pumping system should be checked regularly, mainly to check whether the filter membrane in the pumped product has failed. The way to judge the fault is to observe the color change of the filter membrane. The color of the clean membrane is pure white, and the color of the ineffective filter membrane is yellow-black.
