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5.1.1
Minimum and Maximum Values
MAX
AVG
MIN
1
PEAK+
PEAK -
This function displays the maximum, minimum, and mean values (RMS over half-
period) of the voltage and current, and those of the positive and negative instanta-
neous peaks of the voltage and current.
ITEM
FUNCTION
1.
Voltage and Current Values:
MAX: True half-period RMS value of the AC voltage measured upon power up of the
AVG:
MIN:
PEAK+: Positive instantaneous peak value of the waveform.
PEAK–: Negative instantaneous peak value of the waveform.
2.
Selection tools:
Use ▲ and ▼ to select a tool.
- Selection of the sub-menu
- Resets Max and Min values. Press the Enter button to display the new values.
NOTE: The MAX and MIN measurements are calculated every half period (e.g. ev-
ery 10ms for a 50Hz signal). The AVG measurements are calculated every second.
However, the MAX, AVG and MIN measurements are refreshed every 250ms.
Power Quality Analyzer Model 8230
49.99Hz
V
222.7
221.2
220.1
+300.2
–300.4
max
min
instrument or since the last selection of the
period (e.g. every 10 ms for a 50Hz signal).
True RMS voltage of the signal calculated over one second.
True minimum half-period RMS value of the AC voltage measured upon power
up of the instrument or since the last selection of the
every half-period (e.g. every 10 ms for a 50Hz signal).
02/25/06
A
160.5
102.5
86.5
+166.0
–168.3
1
2
3
Figure 5-2
10:26
tool. Calculation every half-
tool. Calculation
2
27
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