Hioki MR8827, Instruction Manual

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Waveform GO/NG Evaluation (MEM, FFT Function)
• Trigger mode: [Single] Measurement continues until stop mode conditions are fulfilled, then stops.
• Trigger mode [Repeat] , [Auto] Recording and waveform evaluation is carried out continuously. Press
the STOP key to stop measurement.
• When “Auto-print” is [On] , the waveform is printed when the stop conditions are satisfied.
• When “Auto-save” is [On] , the data is saved into the media when the stop conditions are satisfied.
• When “Memory Div” is [On] , data is recorded to the memory block only when the stop conditions are
satisfied.
• The waveform evaluation is performed concurrently with measurement when “Roll Mode” is [On]
and the timebase is slow as 100 ms/div or less, or when the “Roll Mode” is [Auto] and the display is
100 ms/div or less due to the time axis magnification. Otherwise, the evaluation is performed after
measurement.
• When performing evaluation after measurement is complete, data capture and evaluation alternate
repeatedly. Data is not captured while the evaluation is in progress. This means that the input signal
is not being continuously monitored. The time required for evaluation is on the order of 100 ms, not
including time required to read data or update the display.
• When performing evaluation and measurement concurrently, measurement continues while the
waveform is displayed and evaluated. However, processing is not necessarily conducted in real time.
• If a high setting is chosen for recording length or if compression is used, the evaluation cycle
becomes slower.
• Waveform scrolling is not available while “Waveform Judge” is ON ( [Out] or [All out] ). To use
waveform scrolling, first turn off “Waveform Judge”.
• When memory function waveform evaluation is specified, one screen of display data (25 divisions) is
printed out. When you need to print waveform data with a recording length longer than 25 divisions,
first set “Waveform Judge” to [Off] .
• Although the waveform display will change if you change display-related settings after measurement
completes, the waveform evaluation results from when the measurement was made will be retained.
To repeat the evaluation process for the waveform after applying new settings, perform waveform
evaluation on the Status basic settings screen.
Refer to “7.5.1 Magnify and Compress Horizontal Axis (Time Axis)” (p. 130).
• When using the highlight function with the FFT function, only the highlighted data is evaluated.