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NOTE
The carrier will not honor any claims unless all shipping material
is saved for their examination. After examining and removing con-
tents, save packing material and carton in the event reshipment
is necessary.
*l% of reading.
In some applications, the fluid viscosity is a known function of temperature
A PC could be used to eliminate the otherwise adverse viscosity effect on
the flow measurement.
SECTION 2 INSTALLATION
2.1
UNPACKING
Remove the Packing list and verify that all equipment has been received.
If there are any questions about the shipment, please call the OMEGA
Customer Service.
Upon receipt of shipment, inspect the container and equipment for any
signs of damage. Take particular note of any evidence of rough handling in
transit. Immediately report any damage to the shipping agent.
FTB500 Series Turbine Meter may be used over wide viscosity ranges,
since the flowmeter has a unique, documented, Universal Viscosity Curve
(abbreviated UVC) which is accurate to
FTB500 Series Flowmeter for operation on a viscous fluid,
it is generally preferable to size the flowmeter so it will be operating in the
higher portion of its range to minimize viscosity effects in the measurement.
Some loss in flow turndown range may be expected.
1.3.3
Viscosity Calibration and UVC Curves
In some flowmeter applications the viscosity is held nearly constant owing
to regulated conditions of temperature and fluid consistency. For such ap-
plications it is only necessary to document the flowmeter
' s performance
at the expected operating viscosity. For such fixed viscosity applications
the standard specifications usually apply.
The
1.3.2 Viscosity Effects
An ideal flowmeter may be defined as one in which the output is solely a
function of the fluid flow being measured. Real flowmeters display
dependencies on secondary fluid properties, such as viscosity temperature,
and/or pressure. These effects tend to obscure or degrade the precision of
the flow measurement.
In very few flowmeter designs, the viscosity dependency is well understood
and given suitable documentation, may be compensated for. The OMEGA
instruments are among this select group.
In selecting an
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