Split electromagnetic flowmeter sensor should be installed vertically, and the fluid flows from the bottom up to meet the solid, liquid two are in a mixed condition.
Split electromagnetic flowmeter installation notes:
Split electromagnetic flowmeter sensor should be installed vertically, and the fluid flows from the bottom up to meet the solid, liquid two are in a mixed condition. The reason is that if the medium has solids (silt, small stone particles, etc.) easy to precipitate the situation. In addition, there are fish and weeds in the pipeline fish swimming in the pipeline will cause the output of the flowmeter swing back and forth; hanging in the electrode near the weeds swing back and forth will also cause the output of the flowmeter is not consolidated. In the flowmeter upstream of the entrance to set up a metal filter to cover the fish and weeds into the measurement tube.
Split electromagnetic flowmeter to prevent negative pressure of the pipeline set up improper operation will cause negative pressure inside the sensor. When the flowmeter at the same time to close the valve on the upper and lower flow, if the temperature of the fluid is higher than the air temperature . Shrinkage after cooling, so that the pressure in the pipe there is a danger of forming negative pressure. Negative pressure causes the lining and metal conduit stripping, causing electrode leakage.
In the split electromagnetic flowmeter near the negative pressure prevention valve, turn the valve to connect to atmospheric pressure to prevent negative pressure in the sensor. Split electromagnetic flowmeter under the flow connected to a vertical pipe, if the flow sensor upstream valve to close or adjust the flow, the sensor measurement tube will form a negative pressure. In order to prevent negative pressure, need to add back pressure or application of downstream valve to regulate and close the flow.
Split electromagnetic flowmeter proper maintenance space, large calibre flowmeter is often installed in the instrument well, in order to pipe installation, wiring, inspection and maintenance of the convenience of the need to leave a proper space. In order to observe, wiring and maintenance of convenience, instrumentation installation should be a certain height from the ground, in order to facilitate cleaning, installation.
Hangzhou Economic Development Area，Hangzhou 310018，China
