Справочник Пользователя для Emerson Process Management Rosemount
Product Specification Sheet
00815-0100-4810, Rev AA
June 2005
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).
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.
capacitance technology-based.
•
The pressure instrument sensor shall be
hermetically sealed from the external
environment.
hermetically sealed from the external
environment.
•
The pressure instrument shall have built-in
transient protection.
transient protection.
Communication Specifications
•
Communication with the flowmeter can occur
via a hand-held device.
via a hand-held device.
•
Digital communication with the flowmeter shall
be via open protocols (e.g. HART,
FOUNDATION
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.
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.
flow cut-off functionality.
•
The pressure instrument shall be able to fully
communicate with a Microsoft
communicate with a Microsoft
®
Windows
®
based instrument management software via
an open communication protocol.
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.
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.
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.
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.
types.
When the COP is integrated with a differential
pressure instrument for volumetric output, the
flowmeter shall perform as follows:
pressure instrument for volumetric output, the
flowmeter shall perform as follows:
•
Within ± 0.75% to ± 0.95% of flow rate,
dependant on beta size.
dependant on beta size.
•
The vendor shall make independent testing
documentation available demonstrating this
performance.
documentation available demonstrating this
performance.
Functional Specifications
•
Pressure instrument hardware / software
failure alarm shall be selectable as high, low,
or any user-defined value.
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.
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
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.
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.
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.
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.