Rosemount 8732C, Руководство пользователя

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4-3
Transmitter Functions
REVIEW VARIABLES Before operating the Model 8732C in an actual installation, review all
of the factory set configuration data to ensure that they reflect the
current application.
Review
Review the flowmeter configuration parameters set at the factory to
ensure accuracy and compatibility with your particular application of
the flowmeter.
NOTE
If you are using the LOI to review variables, each variable must be
accessed as if you were going to change its setting. The value displayed
on the LOI screen is the configured value of the variable.
If you need to make any changes to flowmeter configuration data, see
Basic Configuration on page 4-4 for additional information.
CHECK OUTPUT
VARIABLES Next, check the transmitter output. Model 8732C digital outputs
include: flow rate (PV), pulse output, measure gross total, measure net
total, and measure reverse total. The settings should be reviewed to
ensure that the flowmeter is operating properly.
Process Variables
The Process Variables for the Model 8732C provide the flowmeter
output. They measure flow in several ways that reflect your needs and
the configuration of your flowmeter.
When commissioning a flowmeter, review each process variable, its
function, and output. If you suspect a problem with the digital outputs,
you may need to reconfigure the transmitter or check the
troubleshooting table in Section 5: Troubleshooting.
PV – Process Variable is the actual configured flow rate in the line.
On the bench, the PV value should be zero. Check the units on
the PV to make sure they are configured correctly. If the units
format is not correct, see Units on page 4-4.
Puls Out – Pulse Output provides the actual pulse reading from the
meter if your transmitter is configured for pulse output.
Measure gross totl – Measure Gross Total provides a reading of the
total forward flow since the totalizer was last reset. The totalizer value
should be zero during commissioning on the bench, and the units
should reflect the volume units of the flow rate. If the totalizer value is
not zero, it may need to be reset (see Totalizer Display on page 4-11).
Measure net totl – Measure Net Total provides a reading of the net
totalized flow in the forward direction. The net totalize value can be
reset using the HART Communicator (1, 1, 4, 6) or the LOI.
Measure reverse totl – Measure Reverse Total provides a reading of
the total flow of process fluid in the reverse direction.
HART Fast Keys 1, 5
HART Fast Keys
1, 1
LOI
Display Setup