30
Power Quality Analyzer Model 3945
• To activate the selected parameter for recording, use the
buttons.
The selected parameters will have a fi lled in and those not selected will have
an unfi lled .
• There are two user-defi ned parameters at the bottom of the window. At fi rst,
they will be listed as a question mark “
?
”. These parameters allow you to moni-
tor specifi c, or a range, of voltage, current or power harmonics.
To activate these parameters:
- Use the
buttons to select the parameter.
- Next use the
buttons to scroll through the available choices.
These are: Uh, Vh, Ah, and VAh.
- Once the desired parameter is selected, use the
to move to the fi rst
modifi able fi eld for this parameter. A value from 00 to 50 may be selected
for this fi eld using the
buttons.
- After selecting the desired harmonic order for the beginning value, press
the
button to move to the upper value. Use the same process to select
the upper limit.
- Press the button again to move to the right to modify the last value
needed to complete the defi nition. Here you will choose whether to include
all harmonics or only the odd harmonics.
- Use
the
buttons to make this selection. The diamond preceding the
Odd
Only
choice will appear fi lled in for selected and unfi lled for not selected.
Example of a user defi ned choice:
Vh 02 → 15 Odd Only.
In this user defi ned condition, all odd voltage harmonics between the 2
nd
and the
15
th
will be recorded.
• Press
the button when you have fi nished selecting all the parameters to be
recorded to apply the new setup.
WARNING:
The battery may fully discharge when recording for long periods of time
while not connected to a power supply. The PowerPad™ will continue to
record for some time, even if below the minimum battery charge value.
However, the display may not come back on, and will eventually stop
saving data when the battery is too low. All data recorded will be saved.
If in the Record Mode, and the display does not come ON, do not turn the
instrument OFF/ON. Supply power to the PowerPad™ with the line cord
and the display will come back ON when any button (other than ON/OFF)
is pressed.
