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Klinger CMF
Instruction Manual
Page 63
from sources of vibration (even
other flowmeters)
Adjust low flow cutoff and
choose a suitable flow unit
Check for external forces on
flow meter (e.g. pipe
eccentricity, flow meter
enclosure bearing weight)
Call Walsn
Flow meter display a
fluctuant flow while there
is a stable flow
Wiring problems
Radio frequency
interference
Slug flow
Two-phase flow
Flow tube blocking or
coating
Pipe vibration
Output wiring problem
Receiving equipment
problem
Check drive gain and detect
voltage
Verify grounding of the
sensor and transmitter
Check the moisture of
junction box
Investigate possible sources
of radio frequency
interference
Check if there is two-phase
flow, tube coating or tube
damage.
Purge flow tube
Ensure flowmeter is isolated
from sources of vibration
(even other flowmeters)
Ensure that the pipeline is
properly supported
Call Walsn
Measured flow or volume
is not accurate
Wiring problems
Wrong flow unit
Flow calibration coefficient
error
Density calibration
coefficient error
Slug flow
Unexpected condensation
in flow tube
Receiving equipment
problem
Filter coefficient is too large
Verify wiring and grounding of
the sensor and transmitter
Check the resistance of the
sensor coil and whether it is
short connected with the
casing.
Choose a suitable flow unit
Verify that coefficients match
the data on the nameplate of
the sensor
Zero calibration
Ensure slug flow does not
appear
Ensure sensor is oriented as
recommended
Adjust small filter coefficient