32
Power Quality Analyzer Model 3945
NOTE:
The programmed hysteresis is common to all alarms.
• Highlight
Alarm
with
the
buttons, then press the
button.
• Select the modifi able fi eld using the
buttons.
• Activate or adjust the threshold values using the
buttons. (The fi eld to be
modifi ed is shown in bold.)
• Press
the button when you have fi nished setting all the alarm parameters.
NOTE:
When the alarm is “OFF”, the parameters previously used are stored in
memory and reappear if the alarm is selected again.
4.1.10 Clear Memory
When CLEAR MEMORY is selected, the following question is displayed:
Are you sure you want to delete all the data?
Yes
No
• Choose the answer with the
buttons.
• Press the button to apply your choice. The Confi guration menu will once
again be displayed on the screen.
When data is deleted, all detected alarms, screen snapshots,
captured transient states and all recordings are deleted.
• The instrument confi guration will return to the default setting.
• The instrument will automatically switch itself OFF once the data has
been deleted.
4.1.11 Line Frequency
Rated frequency of network: 50 or 60Hz
This parameter determines the correction coeffi cients used for
calculating power and energy.
• Highlight Line Frequency with the
buttons, then press the
button.
• Choose the line frequency using the
buttons.
• Press
the button to apply your selection. The Confi guration menu will once
again be displayed on the screen.
