Check Frequency Output Maximum Pulse Width; Check Frequency Output Scaling Method; Check Frequency Output Fault Action; Check Flow Direction - Emerson Micro Motion 1700 Configuration And Use Manual

10.20 Check Frequency Output Maximum Pulse
Width
If Frequency Output Maximum Pulse Width is set incorrectly, the frequency output may report an
incorrect value.
Verify the configuration of Frequency Output Maximum Pulse Width.
For most applications, the default value for Frequency Output Maximum Pulse Width is
appropriate. This corresponds to a 50% duty cycle.
10.21

Check Frequency Output Scaling Method

If Frequency Output Scaling Method is set incorrectly, the frequency output may report an
incorrect value.
1.
2.
10.22

Check Frequency Output Fault Action

The Frequency Output Fault Action controls the behavior of the frequency output if the
transmitter encounters an internal fault condition. If the frequency output is reporting a
constant value, the transmitter may be in a fault condition.
1.
2.
3.
10.23

Check Flow Direction

If Flow Direction is set inappropriately for your process, the transmitter may report
unexpected flow values or totals.
The Flow Direction parameter interacts with actual flow direction to affect flow values, flow
totals and inventories, and output behavior. For the simplest operation, actual process
flow should match the flow arrow that is on the side of the sensor case.
Procedure
1.
Configuration and Use Manual
Verify the configuration of Frequency Output Scaling Method.
If you changed the setting of Frequency Output Scaling Method, check the settings of all
other frequency output parameters.
Check the status alarms for active fault conditons.
If there are active fault conditions, the transmitter is performing correctly. If you
want to change its behavior, consider the following options:
• Change the setting of Frequency Output Fault Action.
• For the relevant status alarms, change the setting of Alarm Severity to Ignore.
If there are no active fault conditions, continue troubleshooting.
Verify the actual direction of process flow through the sensor.
Troubleshooting
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