Onicon F-1000 SERIES - Turbine Rotation Test

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1000 SERIES TURBINE METER CONFIGURATION UTILITY AND INSTALLATION GUIDE
ONICON Incorporated 727.447.6140 Page 22 onicon.com
Scaled Output Pulse Duration (Editable)
This parameter congures the pulse duration, or the time that the relay output of
the meter is in a closed state, when the scaled pulse output occurs.
There are four settings available:
• “50 ms on 1 s total” – When a scaled pulse occurs, the duration on the
relay closure will be 50ms. A scaled pulse cannot occur more than once per
second (1 Hz).
• “100 ms on 1 s total” –When a scaled pulse occurs, the duration on the relay
closure will be 100ms. A scaled pulse cannot occur more than once per
second (1 Hz).
• “500 ms on 2 s total” –When a scaled pulse occurs, the duration on the relay
closure will be 500ms. A scaled pulse cannot occur more than once per 2
seconds (1/2 Hz).
• “1000ms on 3s total” – When a scaled pulse occurs, the duration on the relay
closure will be 1000ms (1 second). A scaled pulse cannot occur more than
once per 3 seconds (1/3 Hz).
The pulse volume along with the pulse duration determine when the meter
will enter a “pule overrun” alarm. A pulse overrun occurs when the meter is
attempting to provide a scaled pulse faster than the duration allows. Please
follow the on-screen instructions for determining if your pulse scaling and
duration settings could cause a pulse overrun.
3.3.6 TURBINE ROTATION TEST
The turbine rotation test tab allows the user to congure the settings which
control the rotation test alarm output. The turbine rotation test is only used with
dual turbine meters. Its function is to detect if the top and bottom turbines are
not spinning at similar speeds, which would indicate possible damage or debris
in the turbines. The meter can be set to continue operate normally if there’s an
alarm or stop producing an output signal in addition to supplying an alarm to the
Conguration Utility. Also, the relay output on the meter can be set to change
state if an alarm was present. To enable the relay to close when there is an alarm,
enable this feature in the “Meter Data” tab.