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What are the common faults of boiler steam flow meters? Posted by : admin / Posted on : Jul 22, 2020

Boiler steam flow meters may have measurement errors due to on-site vibration, installation or parameter settings. We can check the specific faults according to the specific fault conditions. Then, what are the common faults of steam flow meters What?
The frequency change of the flow meter on site is large. First check whether the front and rear straight pipe sections of the lower pipeline meet the requirements. If it does not meet the requirements, it is recommended to change the installation location; then check whether there is electromagnetic interference on site; then see whether the flow rate on site is lower than the lower limit of the flowmeter.
No signal on site. Check whether the flowmeter is in a power-on state; whether the flowmeter reaches 4-20mA of the starting signal point.
The actual flow rate increases, but the data displayed by the flowmeter decreases. This is the reason for the working conditions and can assist the customer to find the problem on the spot.
The actual flow rate decreases, but the data displayed by the flowmeter increases. It should be because there is vibration on site or the gasket is not installed to the center point of the pipeline during installation. Customers can be advised to reinstall.
The display of flow meters under the same working condition is inconsistent and the difference is large. Check whether the direction of the lower pipeline is correct; whether the parameters of the flowmeter have been modified; whether the flow is too small; check whether the temperature and pressure compensation is faulty. The flowmeter with 4-20mA output is inconsistent with the system display. Check whether the unit of the parameter setting is consistent, or whether the range is correspondingly consistent; whether the 4-20mA output cable is too long and produces excessive loss. The flow rate displayed by the steam flowmeter is very different from the actual one. A large part of the reason is the problem of parameter setting unit.

Orifice plate flowmeter