Filter
Top Products
The frequency output parameters include:
•
Frequency Output Polarity
•
Frequency Output Scaling Method
•
Frequency Output Maximum Pulse Width
• Frequency Output Fault Action and Frequency Output Fault Value
Restriction
The process variable assigned to the primary mA output is automatically assigned to the frequency
output. You cannot assign a different process variable.
Important
Whenever you change a frequency output parameter, verify all other frequency output parameters
before returning the flowmeter to service. In some situations, the transmitter automatically loads a
set of stored values, and these values may not be appropriate for your application.
6.3.1 Configure Frequency Output Polarity
ProLink II ProLink > Configuration > Frequency/Discrete Output > Frequency > Freq Output Polarity
ProLink III Device Tools > Configuration > I/O > Outputs > Frequency Output
Field Communicator Configure > Manual Setup > Inputs/Outputs > Frequency Output > FO Settings > FO Polarity
Overview
Frequency Output Polarity controls how the output indicates the ON (active) state. The default
value, Active High, is appropriate for most applications. Active Low may be required by
applications that use low-frequency signals.
Procedure
Set Frequency Output Polarity as desired.
The default setting is Active High.
Options for Frequency Output Polarity
Options for Frequency Output PolarityTable 6-5:
Polarity Reference voltage (OFF) Pulse voltage (ON)
Active High
0 As determined by power sup-
ply, pull-up resistor, and load
(see the installation manual for
your transmitter)
Integrate the meter with the control system
Configuration and Use Manual 79