Chroma 66203, User Manual

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Operation
4-25
Figure 4-38 Process for Setting WINDOW & AVG Measurement Functions
■ Avg
If the UUT voltage or current is unstable, using the Moving Average Method can get a
stable measured value. The more average number of times, the measured value is
more stable. Different from the window mode, Average updates the measured value of
two cycles by a fixed interval in order to calculate the new average. The average mode
is more capable of reflecting the fluctuation of actual current or voltage waveform. The
window mode is suggested if it is desired to get a rather stable measured value. The
Avg setting is 1, 2, 4, 8, 16, 32 and the default is 1.
Following is the procedure to the parameter:
1. Press SETUP and select Meas. The Meas indicator is on indicating it is in Meas
menu.
2. Use ↑ , ↓ to select Meas. in the 1
st
display window and press TRIG/ENTER to
confirm it.
3. Use ↑ , ↓ to select Avg in the 2
nd
display window and press TRIG/ENTER to confirm
it.
4. Use ↑ , ↓ to select the average times in the 3
rd
display window and press
TRIG/ENTER to confirm it. Press SETUP to return to the main menu.
No matter it is Window or Average mode, the longer or larger the
average time or the average number of times is set, the more stable
measured value would be got. However the fluctuation of voltage or
current signal cannot be reflected either.