Troubleshooting – Max Machinery 243 Helical Flow Meter User Manual
Page 16
Max Machinery, Inc.
© Copyright 2013
Rev. 002Q4
16
Troubleshooting
Trouble
Corrective Action
No Flow through meter or high pressure drop across meter
Solidified material blocking rotation
Debris blocking rotation
Meter broken
Heat meter to melt material.
Remove meter from line. Flush with an organic solvent or
petrochemical. Try to work debris out of the meter.
If you find damaged parts in the meter, return the
meter to the factory for repair.
Fluid is passing through the meter, but there is no indication of flow
Improper hook-up of transmitter
Verify that DC power is present at the PCA. Use a
multi-meter to measure the transmitter output
independent
of the display or PLC.
Inspect cabling.
Indicated flow does not agree with expected readings
Air in the line
Indicator not calibrated properly
Excessive reverse flow in system
Air bubbles displace the meter just as a liquid would.
If you are over-reporting, verify that there is no air in
the lines.
Verify the K-Factor for the meter in use and compare
this value to the setting used in the display.
Max transmitters have anti-dither functions which can
buffer up to 1 revolution of reverse flow. An incorrect
flow total can be reported if the pumping causes a
flow and ebb of greater than 1 meter revolution.