Set up HSTC

HSTC alarms are disabled by default. The HSTC feature is enabled when HSTC alarms are enabled.

HSTC related settings, such as magnitude and duration thresholds, are pre-configured at the factory. Use the default settings or make changes based on your system needs.

Review and configure the settings for the following functions before enabling the HSTC feature:

  • HSTC alarms.

  • HSTC logging.

HSTC alarms

Use HSTC alarms to notify you when a specific condition is met, such as a voltage transient that exceeds a defined magnitude threshold.

HSTC alarms are included in the ION9000 series alarm system and are shown in the meter’s Historical Alarm screen(s).

Default HSTC alarm settings

Setup Register Range Default
HSTC Alarm status Disabled, enabled Disabled
Voltage Reference Ve, Vn Ve
Magnitude Threshold (VRMS) 120 - 7100 1000
Duration Threshold (μs) 0 - 250.0 0
Alarm Priority None, Info Only, Low, Medium, High High
Custom Priority 0 - 255 192

To use HSTC alarms, perform the following:

  • Enable HSTC alarms.

  • Configure HSTC alarms.

    • Set the voltage reference.

    • Set the peak magnitude threshold and duration threshold.

    • Assign alarm priority.

    • Set a custom alarm priority.

  • View and acknowledge alarms.

See Alarms and alerts for additional information about the ION9000 series alarms.

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