Hioki 8860-50, Инструкция по эксплуатации

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4.1 Selecting the Function
82
Choosing the Appropriate Function
The acquisition procedure and setting choices for measurement data and available operations depend on the
selected operating function.
Function Description
Memory Function
This function is most suitable for oscilloscope-type measurements, such as
instantaneous waveforms and transient phenomena. Use to record relatively
fast signals with periods from µs to minutes.
Data is recorded at a rate of 100 samples per division.
The sampling rate changes whenever the timebase (time per division) is changed.
Therefore, setting a slow timebase for long-term recording simply increases the sampling
interval.
Features:
• Data can be displayed, saved and printed each time an amount equal to the recording
length is acquired. (When Roll Mode is enabled, data is displayed simultaneously as it
is acquired. However, depending on settings, there are some cases in which this is not
possible.) (p. 102)
• Range and other settings can be made automatically (p. 74).
• Calculations can be applied to measurement data ( Analysis and Communication
Supplement ).
• Waveforms can be overlaid and compared (p. 104).
• Dead time (intervals of no measurement) during continuous recording can be mini-
mized by using Memory Division (p. 109).
• You can search measurement data after setting the desired search criteria (p. 222).
• Averaging can be employed to remove noise components from recordings (p. 106).
Recorder Function
This function is suitable for use instead of pen recorders and pen oscilloscopes,
to record long-term fluctuations and create records for observing slow phenom-
ena.
Use to record relatively slow signals with periods from ms to hours.
Data is recorded at a rate of 100 samples per division, with a maximum and minimum val-
ue included in each sample.
The timebase and sampling rate can each be set separately. With the Recorder function,
changing the timebase does not affect the sampling rate, so the peaks of quickly chang-
ing signals can be recorded when measuring with a slow timebase. Measured data is dis-
played simultaneously as it is acquired regardless of recording length.
Features:
• No recording length has to be set, as measurement continues until manually stopped
(p. 101).
• Printing (real-time printing) can be paused and resumed while measuring (When using
the internal printer).
Input
Time t
(Time t/div)
Input
Voltage
Sampling Period
A/D Conversion
1 div
100 1
(1/100 of time t)
(Sampling point recording)
Input
Sampling Period
Time t
100 1
(1/100 of time t)
Max.
Min.
1 div
(time/div)
Max.
Min.
A/D Conversion
Input
Voltage
(Envelope recording)