Hioki 3166 - Sampling Method; PLL Sync;Frequency Source

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8.2 Settings for Each Item
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8
.2.2 Sampling Method
NOTE
8
.2.3 PLL Sync/Frequency Source
NOTE
This item sets the sampling method.
Normally, use "PLL sync."
When using a fixed clock, adjust the set frequency in accordance with the
frequency of the line that is being measured.
Correct measurement is impossible if this setting does not agree with the
frequency of the line being measured. In addition, if a fixed clock is being
used and the frequency of the line being measured fluctuates, errors in the
measurements will result.
Options: PLL /FIXED CLOCK
*PLL
Example Changing to a fixed clock
Position the cursor at "Sampling method (SAMPLING METHOD)" item.
Press the FIXED function key.
"FIXED CLOCK" is set and is displayed in the "Sampling method" field. The
sampling clock frequency is that set by the "Frequency of the line being
measured" setting.
This item selects the PLL sync source and the input source for frequency
measurement.
Normally, use the "U1" voltage input source.
If there is no voltage input during current measurement, use the "I1" current
input source.
Options: U1 (voltage)/I1 (current)
*U1 (voltage)
Only channel 1 can be used as the input source, whether for voltage input or
current input.
Example Changing to the current input source
Position the cursor at the "PLL sync/frequency source (SYNC/FREQ.
SOURCE)" item.
Pressing the I1 function key .
"I1" is set and is displayed in the "PLL sync/frequency source" field.