Wetted Material Selection; Environmental Considerations - Emerson Rosemount 8600D Series Reference Manual

Reference Manual
00809-0100-4860, Rev BC
Upstream/Downstream piping
The vortex meter may be installed with a minimum of ten diameters (D) of straight pipe length
upstream and five diameters (D) of straight pipe length downstream.
Rated accuracy is based on the number of pipe diameter from an upstream disturbance. No
K-factor correction is required if the meter is installed with 35 D upstream and 5 D downstream.
The value of the K-factor may shift up to 0.5% when the upstream straight pipe length is
between 10D and 35D. Please see Technical Data Sheet (00816-0100-3250) on Installation
Effects for optional K-factor corrections. This effect can be corrected for using the Installation
Effect Correction Factor (See
Pressure and temperature transmitter location
When using pressure and temperature transmitters in conjunction with the Rosemount 8600D
for compensated mass flows, install the transmitter(s) downstream of the Vortex Flowmeter.
See Figure
Figure 2-4. Pressure and Temperature Transmitter Location
NOTE: The MTA option can be purchased for an integral
temperature measurement and mass flow temperature
compensation for saturated steam only.
2.2.4

Wetted material selection

Ensure that the process fluid is compatible with the meter body wetted materials when
specifying the Rosemount 8600D. Corrosion will shorten the life of the meter body. Consult
recognized sources of corrosion data or contact your Rosemount Sales Representative for more
information.
Note
For accurate results perform a Positive Material Identification (PMI) test on a machined surface.
2.2.5

Environmental considerations

Avoid excessive heat and vibration to ensure maximum flowmeter life. Typical problem areas
include high-vibration lines with integrally mounted electronics, warm-climate installations in
direct sunlight, and outdoor installations in cold climates.
Installation
page 52).
2-4.
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Section 2: Installation
P T
4 Downstream
6 Downstream
January 2013
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