Micro Motion RFT9709 Manuál s instrukcemi Strana 107

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Using ProLink
®
Software with Micro Motion
®
Transmitters
93
Configure Menu: Transmitter Variables
continued
Flow units
Configure Menu:
Transmitter Outputs
Configure Menu:
Transmitter Information
Configure Menu: EventsView Menu: Status
Configure Menu:
Characterize
Configure Menu:
Transmitter Variables
To open the Configure Transmitter Variables dialog box, open the
Configure menu, then choose Transmitter Variables. The Configure
Transmitter Variables dialog box appears, as depicted in:
Figure 9-1
for an RFT9739
Figure 9-2
for an IFT9701 or IFT9703
Figure 9-3
for an RFT9712 or RFT9729
While configuring transmitter variables, write values in the appropriate
Transmitter Configuration Worksheet, shown in
Appendix E
, page 183.
The ProLink program supports complete configuration of measurement
units for all process variables measured by the transmitter. Transmitters
can use standard engineering units for all variables. Special mass flow
and volume flow units can be assigned with an RFT9739, RFT9712, or
RFT9729. Special units cannot be assigned with an IFT9701 or an
IFT9703.
Open the Units list boxes to select any of the standard engineering
units listed in
Table 9-1
, page 94, through
Table 9-8
, page 96.
To assign special units, see
Section 9.2
.
9.2 Flow units
Units of mass and volume can be standard engineering units listed in
Table 9-1
through
Table 9-7
or special units.
The RFT9739 can use one mass flow unit and one volume flow unit
simultaneously.
The IFT9701, IFT9703, RFT9712, and RFT9729 can use one mass
flow unit or one volume flow unit.
The transmitter automatically totalizes in the base unit of mass or
volume chosen for the flow rate.
Use of a special unit of mass or volume requires converting the base
unit of mass or volume to another unit (such as converting pounds to
ounces or converting gallons to pints).
The meter measures mass flow of gas or standard volumetric flow of a
gas. Mass flow rate and volumetric flow rate are related by the density of
the gas at a reference condition. The meter should not be used to
measure actual volumetric flow of a gas.
After establishing flow units, continue using them to configure outputs
and process limits.
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