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Zero
Perform the zero calibration as described in the Calibration section of the integrator
instruction manual.
Span
1.
Install the calibration pulley and bracket assembly to the flowmeter housing.
2.
Hang the test weight over the calibration pulley using the test weight cable.
3.
Perform the span calibration as described in the calibration section of the integrator
instruction manual.
4.
After the span calibration has been completed, remove the test weight and pulley
assembly and store them.
sensing plate
Material Test
Calibration of the flowmeter by test weight is not a dynamic simulation and yields only an
approximate span calibration. Effective material flow, friction, and velocity can only be
reproduced by running actual material tests.
At least two 5 minute samples should be taken to ensure repeatability.
Material Test
Refer to
integrator manual.
Re-Rating
After material tests have been done and a decision is made to re-rate the Millflo at a
higher or lower capacity, (with 20% of the design rate specified at the time of purchase)
only the design rate parameter of the integrator needs to be changed. Following that, a
recalibration of the zero and span can be performed using the old test weight and test
rate. New material tests will not be required.
Page 12
calibration access hole (remove plug
hook
to access hook during calibration)
mount bracket
using bolts
threaded into
Millflo wall
Millflo
housing
and subsequent
Milltronics Millflo – INSTRUCTION MANUAL
calibration
bracket
calibration pulley
cable
test
weight
Factoring
of the flowmeter sections of the
7ML19985CS01
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