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Industry Information
Common problems and treatment methods of differential pressure flowmeter
2011-6-3 9:11:09

The use of differential pressure flowmeters in the field is well known, but due to the large number of auxiliary equipment, the maintenance is still large. Today, I will summarize it for the on-site measurement and maintenance of the throttling device .
1. Orifice processing size does not meet design requirements
Such a requirement is entirely a mistake of the manufacturer. Some sites may have set the differential pressure when selecting the orifice plate flowmeter . In fact, this disguise fixes the openings of the orifice plate, so our manufacturer is processing holes. When the plate size is calculated, it is necessary to calculate the hole diameter based on the on-site differential pressure. If there is a deviation in the processing size, then there are only two methods. Opening diameter.
2. The signal line of differential pressure transmitter is connected incorrectly
Generally, such a situation is relatively rare. When this happens, as long as we reconnect it according to the relevant wiring diagram, and then reset the zero point.
3, the situation where the pressure tube is blocked
This positive and negative pressure take-off tube blockage differential pressure transmitter shows different results. For specific results, please refer to related articles.