How to use gas flowmeter correctly?
The correct use of gas flowmeters is the key to ensure accurate and reliable measurement results. The following is the correct use of gas flowmeters:
1. Use steps
Check and preparation: Check whether the appearance of the gas flow meter is intact and whether the components are tightly connected. At the same time, prepare the necessary measuring tools and recording forms.
Setting parameters: According to the actual needs, set the relevant parameters of the gas flow meter, such as unit selection, display accuracy, alarm Settings, etc. These parameters should be set according to the instrument instructions and measurement requirements.
Connect the gas path: Connect the good gas path in the direction of the incoming and outgoing gas, and ensure that the connection is well sealed. During the connection process, care should be taken to avoid gas leakage and impurities entering the flow meter.
Open the air valve: After confirming that everything is ready, open the air valve to allow the gas to be measured by the flow meter. During the measurement process, pay attention to the indication and reading changes of the flowmeter to ensure the accuracy of the measurement results.
2. Precautions
Keep clean: During use, keep the gas flow meter clean and dry to avoid dust and moisture entering the inside of the flow meter to affect the measurement results.
Avoid interference: Take care to prevent the airflow from being disturbed, such as avoiding strong vibration near the flow meter or placing other items that may affect the airflow.
Regular maintenance: Regular maintenance and maintenance of the gas flow meter, such as cleaning the inside of the flow meter, checking whether the connection is leaking. At the same time, pay attention to check whether the instructions and readings of the flow meter are accurate and reliable, and if problems are found, they should be dealt with in time.
Pay attention to safety: When using the gas flow meter, pay attention to safe operation to avoid accidents. For example, the use of gas flowmeters in environments with explosion hazards is prohibited.
3. Handling of special cases
Overrange use: When the flow rate of the measured gas exceeds the rated flow rate of the gas flowmeter, although the flowmeter can still work, the measurement accuracy will be reduced at this time. Therefore, the flow range of the measured gas should be understood before measurement, and the appropriate range should be selected for measurement.
High pressure use: When the pressure of the measured gas exceeds the normal pressure value, corresponding measures should be taken according to the instruction manual of the gas flow meter, such as removing the pressure gauge and plugging the mounting hole of the pressure gauge with a non-porous rubber plug.
In short, the correct use of gas flowmeters needs to follow certain steps and precautions to ensure the accuracy and reliability of measurement results. In the use of the process should pay attention to keep clean, avoid interference, regular maintenance and pay attention to safety and other aspects of the problem.
