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of two-phase flow (liquid and vapor exist), as long as the measures to eliminate the presence
of two-phase flow, can make the stable operation of the instrument.
Flowmeter at the factory by calibration, generally do not need field calibration if the
pipeline flow is zero, and confirm that the float is not stuck foreign matter, while not
indicating zero point, which may be due to the meter around a ferromagnetic material, make
zero offset, you should adjust the installation direction and position, so that the
instantaneous flow rate indication to zero and (or RP point), if the current pointer is
found does not correspond to cope 0:00 recalibration, calibration methods, see commissioning
instructions.
o not remove the indicator, otherwise there will be deviations.
D
For HT52, HT53 Flow rate meter during maintenance or cleaning, do not need to be removed
from the pipe to the flowmeter, you can simply remove the float from the top, see the specific
measuring tube dismantling FIG.
Measuring tube dismantling Figure
32
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