Hard Arrival Kinetic Energy Threshold; Dangerous Arrival Velocity Threshold; Dangerous Arrival Kinetic Energy Threshold; Consecutive Hard Arrival Alarm Threshold - ETC Sasquatch User Manual

Table of Contents

5.4.3 Hard Arrival Kinetic Energy Threshold

This is the equivalent kinetic energy of the Hard Arrival Velocity Threshold. This value is linked with the

Hard Arrival Velocity Threshold so that if one is changed the other changes as well.

Associated Alarms: Consecutive Hard Arrival Alarm, Cumulative Hard Arrival Alarm, Cumulative Kinetic

Energy Alarm

If the velocity of the plunger exceeds this threshold a dangerous arrival has occurred. This will trigger a

Dangerous Alarm.

Associated Alarm: Dangerous Arrival Alarm

This is the equivalent kinetic energy of the Dangerous Arrival Velocity Threshold. This value is linked with

the Hard Arrival Velocity Threshold so that if one is changed the other changes as well.

Associated Alarm: Dangerous Arrival Alarm

This setting defines when a consecutive hard arrival alarm will trip. For example, if this setting is 3, then

3 consecutive arrivals with a velocity higher than the Hard Arrival threshold will cause an alarm flag to

be set.

Associated Alarm: Consecutive Hard Arrival Alarm

The Sasquatch counts the number of arrivals above the Hard Arrival threshold. If this count exceeds the

Cumulative Hard Arrival Threshold, and alarm flag is set. These do not need to be consecutive hard

arrivals to trip the alarm.

Associated Alarm: Cumulative Hard Arrival Alarm

The Sasquatch accumulates (adds together) all kinetic energies for arrivals that exceed the Hard Arrival

threshold. When that sum exceeds the Cumulative Hard Arrival Threshold, an alarm will occur.

Associated Alarm: Cumulative Kinetic Energy Alarm

The following outlines the parameters that are required and the history records that are stored during

normal operation.

The following parameters are used when storing each entry in the history.

Table of Contents