Onicon F-1000 SERIES - Page 24

F
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1000 SERIES TURBINE METER CONFIGURATION UTILITY AND INSTALLATION GUIDE
ONICON Incorporated 727.447.6140 Page 24 onicon.com
Turbine Rotation Allowed Percent Dierence (Editable)
This parameter sets the allowed dierence in turbine rotation speed before an
alarm is enabled. The default value is 55.
Example with “Allowed Percent Dierence” set at 55:
• The “Status” tab reports that the top turbine frequency is 60 Hz, while
the bottom turbine is 40 Hz. The percent dierence in rotation is 33.33%.
Turbine rotation alarm is not triggered.
• The “Status” tab reports that the top turbine frequency is 60 Hz, while
the bottom turbine is 25 Hz. The percent dierence in rotation is 58.33%.
Turbine rotation alarm has the potential to be triggered (See “Turbine
Rotation Detect Time Sec” below).
After the parameter is changed, press “Set” to conrm the changes.
Turbine Rotation Detect Time Sec (Editable)
This parameter set the amount of time that the percent dierence in turbine
rotation must occur before an alarm is triggered. The default value is 120 sec.
This gives the meter a buer, before going into alarm, in case debris stopped the
turbine momentarily.
Example with “Allowed Percent Dierence” set at 55 and “Turbine Rotation
Detect Time Sec” set at 120:
The “Status” tab reports that the top turbine frequency is 60 Hz, while the
bottom turbine is 25 Hz. The percent dierence in rotation is 58.33%. Turbine
rotation alarm will be triggered after 120 seconds with the meter in this
state. If the turbine rotation % dierence falls below 55 before 120 seconds is
reached, the 120 second counter will reset, and no alarm will trigger.
After the parameter is changed, press “Set” to conrm the changes.
Turbine Rotation Reset Time Sec (Editable)
This parameter sets the time required for the turbine rotation alarm to disable
after a turbine rotation alarm has already been enabled. The default time is 10
seconds.
After the parameter is changed, press “Set” to conrm the changes.