Power Quality Analyzer Model 3945-B
37
- Press the button again to move to the right to modify the last value
needed to complete the definition. 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 filled in for selected and unfilled
for not selected.
Example of a user defined choice:
Vh 02 → 15
Odd Only.
In this user defined condition, all odd voltage harmonics between the 2
nd
and the
15
th
will be recorded.
• Press the button when you have finished selecting all the parameters to be
recorded to apply the new setup.
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. 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.
4.1.9 Alarm
• Highlight ALARM with the
buttons, then press the button.
The following screen will appear:
07/25/02 10:26
100%
Hysteresis 10 %
ON
ON
ON
ON
ON
ON
ON
3L
3L
3L
3L
Σ
3L
3L
01 s
02 s
01 s
05 min
15 min
01 min
10 min
2 1 0 V
0 0 2 0 A
0 8.0 %
1 0.0 %
1 0 0 0 W
0.9 2
0 5.0 %
<
<
>
>
>
<
>
1
2
3
4
5
6
7
8
9
10
Vrms
Arms
Vthd
Athd
W
PF
Vh
3
1
2
3
4
7
8
5
6
Figure 4-6