09,22,2026 16 views
Recently, the customer service engineer received a message from a customer who reported that the actual exhaust volume of the gas mass flow controller backend was much smaller than the set flow rate, and repeated checks did not find the cause. After receiving the customer's message, the engineer immediately inquired about the basic usage information of the customer. After a series of investigations such as telephone communication, remote video, and product return inspection, it was found that:The reason for the small actual gas output at the back end of the gas mass flow controller is due to a leak in the adapter added by the customerConsidering that the customer is using a 3mm pipeline and the 3mm connector can meet the full range flow of the customer's gas mass flow controller, after seeking the customer's consent, the maintenance engineer replaced the gas mass flow controller adapter with a 3mm connector that is compatible with the pipeline. Avoiding the phenomenon of gas mass flow controller malfunctioning due to adapter problems in the middle.
AttentionGas inlet and outlet joint with a diameter of 3mm, gas mass flow controller product with a full range greater than 5SLM is not applicable
If you encounter the same problem when using a gas mass flow controller, you can follow the steps below to check:
Step 1:Check if the pressure meets the requirements of work pressure
Step 2:Check for any diameter changes or flow blockages, such as reduced diameter or unopened valves
Step 3:Check if the air circuit and joints have good air tightness and if there is any air leakage
Step 4:Check if the wiring is correct and if there are any faults in the wiring
Step 5:Check for contamination of the gas mass flow controller and other malfunctions
1. Special attention should be paid to gas mass flow controllersAir pressure of working mediumPay attention to keeping the working pressure difference between the inlet and outlet of the controller within the specified range. If the working pressure difference is less than the required value, it is possible that the flow rate cannot reach the set value;
2. Gas must be usedPurification, avoid dust, liquids, and oil stainsIf necessary, filters can be installed in the air circuit. If a liquid source bottle is connected to the outlet of the flowmeter, a one-way valve should be installed at the outlet of the flowmeter to prevent liquid reflux and damage to the flowmeter;
3. Our gas quality flow controller has multiple types of gas path connectors to choose from. Within the allowable flow range, customers can choose the connector form that matches the pipeline when purchasing.
