Data Sheet

4
Recorder recording time
Actual operation conditions are assumed, and it is assumed that 30 cm of the
length of the recording paper is not used, for a total of 1770 divisions
■ X-Y Recorder format
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, but only one
plot can be combined. The X-Y plot can be viewed in real-time
on the display, and there is no limit on the recording time. The
waveforms can also be printed out as many times as desired.
Recorder function operation
The input signal is converted to digital form and displayed or
printed*
2
in real-time. The chart speed is maximum 10 mm/s
(in the 1s/division range)*
3
. Even with the real-time recording,
the last 400 divisions of the waveform can be observed by
scrolling or reprinting the data*
2
.
*
2
The optional 8992 PRINTER UNIT is required.
*
3
Only when using the AC Adapter. When using batteries, the maximum speed is
5 mm/s (2 s/division range).
RMS recorder function
This function is exclusively for use on 50/60 Hz power-supply
lines and DC. High-speed sampling is applied to calculate the
rms value from the waveform data
*1
, and the result is recorded
as a graph.
*
1
Using 250 µs high-speed sampling, data for three waveforms are captured for
calculating the rms value. This process is repeated 800 times per second using
the moving average method, resulting in high-speed response.
- RMS Recorder, Recorder functions -
100 V power line
waveform
Chart of Recorder function
Chart of RMS recorder function
Slow-speed recording by RMS recorder
High-speed recording by memory
Y input
X input
Display
X-Y recorder diagram
X-Y matrix
memory
Recording paper
400 DIV
divisions
in memory
■ RMS Recorder & Memory function
If an abnormal event is detected by triggers during real-time recording
of signals using the RMS recorder, it is stored in memory by the high-
speed sampling memory recorder. The RMS recorder function works
independently and never stops. This function is highly convenient when
it is desirable to record both abnormal phenomena and normal level
fluctuations.
Time axis Chart speed
Sampling
period
Approximate recording time with one roll
of recording paper (18 m)
100 ms/DIV
Printer not required 2.5 µs
Stored in memory only : 40 s
200 ms/DIV Stored in memory only : 1 m 20 s
500 ms/DIV Stored in memory only : 3 m 20 s
1 s/DIV
AC Adapter used 10 mm/s 2.5 µs AC Adapter used : 29 m 30 s
2 s/DIV 5 mm/s 2.5 µs 59 m
5 s/DIV 2 mm/s 2.5 µs 2 h 27 m 30 s
10 s/DIV 1 mm/s 2.5 µs 4 h 55 m
30 s/DIV 20 mm/s 2.5 µs 14 h 45 m
1 min/DIV 10 mm/s 2.5 µs 1 day 5 h 30 m
2 min/DIV 5 mm/s 2.5 µs 2 days 11 h
5 min/DIV 2 mm/s 2.5 µs 6 days 3 h 30 m
10 min/DIV 1 mm/s 2.5 µs 12 days 7 h
30 min/DIV 20 mm/h 2.5 µs 36 days 21 h
1 h/DIV 10 mm/h 2.5 µs 73 days 18 h