Integrate the meter with the control system
Table 7-8
Options for
Discrete Output Source
continued
Code
Option
Display
ProLink II
Field Communi-
cator
Condition
Discrete output
voltage
(2)
ON
Site-specific
Flow Switch
(5)(6)
FL SW
Flow Switch
Indication
Flow Switch
OFF
0 V
Forward flow
0 V
Flow Direction
FLDIR
Forward/Re-
verse Indication
Forward/Re-
verse
Reverse flow
Site-specific
ON
Site-specific
Calibration in
Progress
ZERO
Calibration in
Progress
Calibration in
Progress
OFF
0 V
ON
Site-specific
Fault
FAULT
Fault Condition
Indication
Fault
OFF
0 V
Configure
Flow Switch
parameters
Display
OFF-LINE MAINT→OFF-LINE CONFG→IO→DO→CONFIG FL SW
ProLink II
ProLink→Configuration→Flow→Flow Switch Setpoint
ProLink→Configuration→Flow→Flow Switch Variable
ProLink→Configuration→Flow→Flow Switch Hysteresis
Field Communicator
Configure→Manual Setup→Inputs/Outputs→Discrete Output→DO Assignment
Configure→Manual Setup→Inputs/Outputs→Discrete Output→Flow Switch Source
Configure→Manual Setup→Inputs/Outputs→Discrete Output→Flow Switch Setpoint
Flow Switch
is used to indicate that the flow rate (measured by the configured flow variable) has dropped
below the configured setpoint. The flow switch is implemented with a user-configurable hysteresis.
Procedure
1.
Set
Discrete Output Source
to
Flow Switch
, if you have not already done so.
2.
Set
Flow Switch Variable
to the flow variable that will be used to control the flow switch.
3.
Set
Flow Switch Setpoint
to the flow rate below which you want the flow switch to turn on.
4.
Set
Hysteresis
to the percentage of variation above and below the setpoint that will operate as a
deadband.
Hysteresis
defines a range around the setpoint within which the flow switch will not change. The
default is 5%. The valid range is 0.1% to 10%.
(5) If you assign flow switch to the discrete output, you must also configure
Flow Switch Variable
,
Flow Switch Setpoint
, and
Hysteresis
.
(6) If your transmitter is configured with two discrete outputs, you can assign flow switch to both of them. However,
they will share the settings for
Flow Switch Variable
,
Flow Switch Setpoint
, and
Hysteresis
.
Configuration and Use Manual
131
Содержание Micro Motion 9739 MVD
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Страница 30: ...Quick start with the display OFFLINE MAINT RESTORE ZERO RESTORE YES 24 Micro Motion 9739 MVD Transmitters ...
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Страница 207: ...Appendices and reference ...
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Страница 230: ...Using the transmitter display Figure C 4 Offline menu version information 224 Micro Motion 9739 MVD Transmitters ...
Страница 231: ...Using the transmitter display Figure C 5 Offline menu configuration units and I O Configuration and Use Manual 225 ...
Страница 233: ...Using the transmitter display Figure C 7 Offline menu configuration display Configuration and Use Manual 227 ...
Страница 234: ...Using the transmitter display Figure C 8 Offline menu Simulation loop testing 228 Micro Motion 9739 MVD Transmitters ...
Страница 236: ...Using the transmitter display Figure C 10 Offline menu Zero 230 Micro Motion 9739 MVD Transmitters ...
Страница 239: ...Using ProLink II with the 9739 MVD transmitter Figure D 2 Configuration menu Configuration and Use Manual 233 ...
Страница 241: ...Using ProLink II with the 9739 MVD transmitter Figure D 4 Configuration menu continued Configuration and Use Manual 235 ...
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Страница 245: ...Using the Field Communicator with the 9739 MVD transmitter Figure E 2 Overview menu Configuration and Use Manual 239 ...