4
High-speed response and Effective value recorder
functions are useful in following signal variations
- Function Details -
Outline of recorder function
The input signal is converted to digital form and displayed
and printed in real time. The chart speed is a maximum of
20mm/s (in the 500ms/division range). Even with real-time
recording, the last 2000 divisions of the waveform can be
observed (by scrolling both horizontally and vertically) and
reprinted following measurement.
Recording Time of the Recorder
Sampling
period
Recording time for approx.
Time axis
Chart speed
Virtual recording
1 roll of recording paper (30m)*1
10ms*2/DIV
20ms*2/DIV
50ms*2/DIV
100ms*2/DIV
200ms*2/DIV
500ms/DIV
1 s/DIV
20 s
40 s
-01
The
supports a high-speed recording function in the
8835
1μs
10μs
100μs
20mm/s
memory with no need for recording paper. Although real-
time recording on the recording paper is not possible in the
high-speed range of the recorder function (10ms to 200ms/
division), the waveforms are stored in the memory and can
therefore be monitored on the screen. The last 2000 divisions
of the waveform are retained in the memory before the
measurement is completed. If the recording length is not set
to “continuous”, the printer can also be operated, allowing
waveforms to be printed out later.
1 m 40 s
3 m 20 s
1μs, 10μs
100μs, 1ms
20mm/s
6 m 40 s
24 m 45 s
10mm/s
5mm/s
49 m 30 s
1μ, 10μ, 100μs
2 s/DIV
1 h 39 m 00 s
4 h 7 m 30 s
8 h 15 m
1ms, 10ms
5 s/DIV
2mm/s
10 s/DIV
1mm/s
30 s/DIV
20mm/min
10mm/min
5mm/min
2mm/min
1mm/min
20mm/hr
10mm/hr
24 h 45 m
1μs
10μs
100μs
1ms
10ms
100ms
1 min/DIV
2 min/DIV
5 min/DIV
10 min/DIV
30 min/DIV
1 hr/DIV
2 days 1 h 30 m
4 days 3 h 00 m
10 days 7 h 30 m
20 days 15 h
61 days 21 h
123 days 18 h
1 Based on 2970 divisions, assuming that about 30 cm of the paper length will not be used.
*
*
2 Real-time recording on the recording paper is not possible.
Continuous X-Y recorder function
This function allows two signals converted to digital form to
be combined in an x-y plot and stored in memory. Any of the
four analog channels can be used for an x-y plot, and up to
three x-y plots can be combined. The x-y plot can be viewed
on the screen in real time, and the recording time is unlimited.
The x-y plot can also be reprinted.
Effective value (RMS-value) recorder function
This function is designed exclusively for use on 50/60Hz
power supply lines and DC. High-speed sampling is applied to
calculate the rms value from the waveform data, and the result
is recorded as a graph.
Note: Using fixed 200μs sampling, data for two waveforms are captured for
calculating the rms value. This process is repeated 20 times per second,
resulting in high-speed response that is 10 times faster than that of a digital
tester or similar (using a 2-second update rate).