Emerson Process Management Rosemount - Manual (Page 3)

Product Specification Sheet
00815-0100-4810, Rev AA
June 2005
3
Functional Specifications
• The pressure instrument shall have the
capability to be supplied as mounted directly
on the COP primary when the process
temperature is less than 450°F (232°C).
• Differential pressure instruments shall be
capacitance technology-based.
• The pressure instrument sensor shall be
hermetically sealed from the external
environment.
• The pressure instrument shall have built-in
transient protection.
Communication Specifications
• Communication with the flowmeter can occur
via a hand-held device.
• Digital communication with the flowmeter shall
be via open protocols (e.g. HART,
FOUNDATION
™
Fieldbus). Proprietary
protocols are not permitted.
• The flowmeter shall allow field upgrading of
communication protocols and the addition of
advanced instrument software functions
without changing the pressure sensor.
Software Specifications
• The flowmeter shall contain user definable low
flow cut-off functionality.
• The pressure instrument shall be able to fully
communicate with a Microsoft
®
Windows
®
based instrument management software via
an open communication protocol.
• It shall be possible to store last calibration date
and next calibration due date in the pressure
instrument memory using a hand held
configurator. This information should be
available on Windows-based instrument
management software.
• All instruments shall retain original factory
calibration settings in a permanent memory. It
shall be possible to recall this calibration using
a hand-held communicator.
LCD Specifications
• The instrument indicator shall be LCD type. It
shall display the numeric value and also have
a 0-100% scale bar graph corresponding to
the analog output. It shall be possible to
configure the indicator to display more than
one parameter (pressure, scaled output); in
this case the display will toggle / scroll to show
all selected parameters. The indicator will
display all alarms and alerts.
Volumetric Output Flowmeters
A volumetric measurement is ideal for liquid fluid
types.
When the COP is integrated with a differential
pressure instrument for volumetric output, the
flowmeter shall perform as follows:
• Within ± 0.75% to ± 0.95% of flow rate,
dependant on beta size.
• The vendor shall make independent testing
documentation available demonstrating this
performance.
Functional Specifications
• Pressure instrument hardware / software
failure alarm shall be selectable as high, low,
or any user-defined value.
• The flowmeter shall have the ability to detect
impulse line plugging or should allow field
upgrading to include this by the addition of an
electronics card.
Software Specifications
• The flowmeter shall allow the digital output of
the pressure instrument to be scaled to any
user-defined unit (e.g 0-200 m
3
/hr, 0-9000
gallons/min).
• The flowmeter shall allow custom
user-entered digital alerts for both high and
low values for the pressure reading. This
digital alert will not affect the analog output.
• Flowmeters for custody transfer will have
hardware and software write protect security.
Hardware security will override software.
LCD Specifications
• It shall be possible to remote mount
electronics with a display up to 100 ft (30 m)
from the pressure sensor. These electronics
will allow full configuration of the instrument
via a hand-held communicator.