An Event Change Report should be implemented if there is a power disturbance on a cycle basis that needs to be recorded.
The Nominal Voltage default is 120 volt. The Nominal Voltage setting should be changed to the actual measured voltage during installation for best results. The event Capture function is tailored to record data related to quick sags and swells, not for monitoring steady-state line voltages.
The Threshold Band default is 6 volts. A good initial starting point for the Threshold Band setting is +/- 5 % o f the Nominal Voltage. It should be set to a value small enough to catch the problem event, but large enough to avoid filling up memory with useless data. If it is necessary to disable an event change on a voltage channel, just set the threshold to a very large value such as 500 volts.
This White Paper Includes: