Table 8-2: Interaction between actual flow direction and Sensor Flow Direction Arrow
Actual flow direction
Setting of Sensor Flow Direction
Arrow
Flow direction sent to outputs and
totalizers
Forward (same direction as Flow arrow
on sensor)
With Arrow
Forward
Against Arrow
Reverse
Reverse (opposite from Flow arrow on
sensor)
With Arrow
Reverse
Against Arrow
Forward
Procedure
Set
Frequency Output Direction
as desired.
Option
Description
Positive Flow Only
•
Forward flow: The Frequency Output reports the flow rate according to the
configured scaling method.
•
Reverse flow: The Frequency Output is 0 Hz.
Negative Flow
Only
•
Forward flow: The Frequency Output is 0 Hz.
•
Reverse flow: The Frequency Output reports the absolute value of the flow rate
according to the configured scaling method.
Both Positive and
Negative Flow
The Frequency Output reports the absolute value of the flow rate according to the
configured scaling method. It is not possible to distinguish between forward flow and
reverse flow from the Frequency Output alone. This setting is typically used in
combination with a discrete output configured to report flow direction.
8.3.4 Configure Frequency Output Fault Action
Display
Menu
>
Configuration
>
Alert Setup
>
Output Fault Actions
>
Fault Action
ProLink III
Device Tools
>
Configuration
>
I/O
>
Outputs
>
Frequency Output x
>
Fault Action
Field Communicator
Configure
>
Manual Setup
>
Inputs/Outputs
>
Channel
x
>
Frequency Output
x
>
FO
x
Fault Settings
>
FO
x
Fault Action
Frequency Output Fault Action
controls the behavior of the frequency output if the transmitter detects a
fault condition.
Important
•
The fault action is implemented only if
Alert Severity
is set to Failure. If
Alert Severity
is set to any other
option, the fault action is not implemented.
•
For some faults only: If
Fault Timeout
is set to a non-zero value, the transmitter will not implement the
fault action until the timeout has elapsed.
Procedure
1. Set
Frequency Output Fault Action
as desired.
•
Default: Downscale
Configuration and Use Manual
Integrate the meter with the control system
MMI-20048166
April 2019
Configuration and Use Manual
105