Max Machinery 290 Trasmitter Interface - Manual (Page 8)

an ISO 9001:2008 certified company
8 IH 290-100-350 • rev. 2/2012 • ©2012 Max Machinery, Inc.
Factory Data Screen
The Factory Data tab shows calibration
settings that generally will only need
to be set at the factory. Most fields are
password protected. If needed, contact
the factory for details.
Compensation Options
Compensation is a software feature
where the transmitter measures the
rotational speed of the meter thru one
complete revolution, and then corrects
for this variation. Because different
mechanical meters contain design
differences resulting in cyclic speed
variation, this process is able to smooth
out this cyclic error without adding any
signal filtering. Note that it is critical
that a constant flow is passing thru the
meter when this compensation is done
so that only mechanical variation is
mapped by the transmitter.
Restore Factory
This option restores the compensation
table to the values that were originally
learned at the factory. Generally used
after a field compensation yields
poor results.
Disable
This turns off the cyclic compensation and is only recommended for a field replacement transmitter when a steady flow
is not available to perform a FIELD COMPENSATION.
Perform Field
This option characterizes the flow meter and sensors at a steady flow rate to provide optimal spacing of the output
pulses. Use when optimal output response is needed, Factory Compensation is not available or the application is very
low flow or high viscosity fluid.
NOTE: You must have a steady flow during compensation.