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6.3.4
Alarm Conditions Configuration
The Alarm Conditions window allows you to set up 10 alarm configurations.
Hysteresis: This value for alarms is set to prevent multiple recordings of an event
that goes above the threshold and a certain percentage below it at times.
Example: If the alarm threshold is 100V or higher, hysteresis is 1%. When the voltage
goes up to 100V, the alarm condition starts. When it goes back down to 99V, the alarm
condition stops.
Schedule Alarm Search: When this check box is checked, an alarm is ready to be
scheduled. Once checked, the End Alarm Search button will appear.
End Alarm Search: This button will stop all alarms in progress.
Capture Parameter: The alarm will be triggered based on the value of the selected
parameter.
Choices include:
• None: no alarm
• Vrms: voltage root mean squared
• Arms: current root mean squared
• VPST: voltage short term flicker
• Vcf: voltage crest factor
• Acf: current crest factor
Power Quality Analyzer Model 8230
Figure 6-8
• Hz: frequency
• Akf: current K factor
• Vthd: voltage total harmonic distortion
• Athd: current total harmonic distortion
• W: active power
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