P-Series User Manual Rev2022 35
Troubleshooting and Service Request
Problem Corrective Action
No Flow through meter or high pressure drop across meter
Solidied material blocking rotation
Debris damage or internally clogged
Meter broken
Heat meter to melt material. Do not exceed maximum
meter operating temperature.
Refurbish meter.
Refurbish meter.
Fluid passes through meter, but no ow is indicated
Transmitter cable or conduit cable incorrectly wired
Meter not turning
Verify DC power is present at the PCA. Use a multi-meter to
measure the transmitter output independent of the display
or PLC.
Refurbish meter.
Indicated ow does not agree with expected readings
Air in the line
Indicator not calibrated properly
Excessive reverse ow in system
Air bubbles displace the meter just like a liquid. If
you see over-reporting, purge all air from lines.
Verify K-Factor for the meter in use and compare
this value to the setting used in the display.
Max transmitters’ anti-dither function buffers up to 1
revolution of reverse ow. An incorrect ow total can be
reported if the system reverse ow is greater than 1 meter
revolution.
Additional Information Available
MMI products are covered under our standard manufacturer’s warranty. Details may be found at
https://www.maxmachinery.com/warranty/.
MMI provides refurbishment and calibration services. For more details or to submit your Service Request, go to
https://www.maxmachinery.com/services/.
Max Machinery, Inc., 33A Healdsburg Avenue, Healdsburg, CA 95448 USA
707.433.2662 | www.maxmachinery.com
Additional information about our products, including STEP les and Sample Calibration sheets, may be found on our
website at https://www.maxmachinery.com/downloads/.
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