Example: Configure Frequency=Flow
You want the Frequency Output to report all flow rates up to 2000 kg/min.
The frequency receiving device is configured for 10 pulses/kg.
Solution:
FrequencyFactor
RateFactor
T
× N
FrequencyFactor
2000
60
× 10
FrequencyFactor = 333.33
Set parameters as follows:
• Rate Factor: 2000
• Frequency Factor: 333.33
8.5.3 Configure Frequency Output Direction
Display
Menu → Configuration → Inputs/Outputs → Channel x → I/O Settings → Direction
ProLink III Device Tools → Configuration → I/O → Outputs → Frequency Output → Direction
Field communicator Device Settings → Inputs/Outputs → Frequency Output x → FO x Direction
Frequency Output Direction controls how conditions of forward flow and reverse flow affect the flow rates
reported by the Frequency Output.
Actual flow direction interacts with Sensor Flow Direction Arrow to determine the flow direction that the
transmitter uses in processing. See the following table.
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.
Integrate the meter with the control system Configuration and Use Manual
May2024 MS-00809-0200-1600
108 Emerson.com