Power Quality Trigger Setup Procedure; Power Quality Trigger Setup Screen - Arbiter Systems Power Sentinel 1133A Operation Manual

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compared directly. Sliding means that Reference value is not fixed (or absolute) and can change
slowly, such as with a gradually rising or dropping voltage. See additional details on following
pages.
Hysteresis: Floating point value; reduces extraneous records from accumulating when a measured
value is dithering around a limit or reference.
Hysteresis Format: Absolute or Percent; Absolute refers to a fixed value for hysteresis, and
Percent refers to a percentage of the measured value. As the measured value increases or decreases,
so the hysteresis will change according to the given percentage of hysteresis. Percent must be
entered as a decimal value (e.g. 90% entered as 0.9).
Multiphase: B, C, BC or OFF; means that the Trigger parameters will also apply to B phase, C
phase or both B and C phase, without defining another trigger.
8.3.2

Power Quality Trigger Setup Procedure

To set up the 1133A to trigger on Sags and Swells, you will need an open connection between the
1133A and your computer; you may need to verify the settings on the 1133A. For more information
on opening a connection, please see "Basic Configuration Requirements" in Section 7.1.2. For
definition of Sags and Swells terminology, please read preceding pages in this chapter.
1. At the top of the Power Quality setup screen are windows for typing in the Reference values:
voltage and current. Install any of these values if you are choosing "Sliding" as the Reference
Mode.
2. Choose a trigger Channel from the following: AV, AI, BV, BI, CV, or CI
3. Choose a Limit function: x > Limit or x < Limit.
4. Type in a numerical value for Limit.
5. Select the Limit Mode as Absolute or Percent.
6. Select the Reference Mode as Absolute or Sliding (see step 1 above).
7. Type in a value for Hysteresis, if desired, other than zero.
8. Select a Hysteresis Mode: Absolute or Percent.
9. Select Multiphase if you want to log data on the other phase(s) with a trigger from Phase A.
10. Type in an integer value for Dwell (in half cycles of nominal frequency).
Working with Triggers and Downloading Event Records
Figure 8.2: Power Quality Trigger Setup Screen