4
n
Recording Capacity
• Maximum recording time is inversely proportional to number of recording analog channels.
• Because the actual capacity of a CF card is less than that indicated, , expect actual maximum times to be about 90% of those in the table.
• "
★
" exceeds 1 year.
• Proper operation is not guaranteed for extended recording periods (one year or longer). This type of operation impacts the product’s warranty period and service life.
Investigate why your office’s power sup
-
ply occasionally exhibits instability.
Check for fluctuations in low-voltage
signals such as instrumentation or sen-
sor output.
Measure the phase voltages for all
three phases of a three-phase motor
simultaneously.
Four channels of isolated
CAT III 600 V input
Thanks to its 14-bit, high-resolution A/D converter and the combina-
tion of a high-sensitivity 10 mV/div range and a 5 Hz filter (for noise
rejection), the MR8880 can deliver stable measurement of sensor out-
put.
The MR8880 is capable of mixed recording of RMS values, DC
voltage, and logic signals, allowing it to simultaneously record
data describing the interrelationships between equipment power
supplies and UPS output and control signals.
The
MR8880
provides a turnkey solution for both high-speed measurement at 1 MS/s and long-term measure-
ment. Its ability to measure everything from high- to low-voltage signals allows it to play an important role in a
variety of measurement scenarios.
n
Recording Time
(Internal memory)
All channels (4 8 logic channels)
Time Axis Range
Sampling Speed
Recording Interval Max. Recording Time
100
μ
s/DIV
1 MS/s
1 μs
1 s
200
μ
s/DIV
500 kS/s
2 μs
2 s
500
μ
s/DIV
200 kS/s
5 μs
5 s
1ms/DIV
100 kS/s
10 μs
10 s
2
ms/DIV
50 kS/s
20 μs
20 s
5ms/DIV
20 kS/s
50 μs
50 s
10ms/DIV
10 kS/s
100 μs
1m 40 s
20ms/DIV
5 kS/s
200 μs
3m 20 s
50ms/DIV
2 kS/s
500 μs
8m 20 s
100ms/DIV
1 kS/s
1 ms
16m 40 s
The maximum recording length is fixed regardless of the number of channels in use.
Measure RMS value fluctuations for a power
line over an extended period of time
Long-term measurement and recording us-
ing the real-time function
Recording
Interval
All channels (4 8 logic channels), recording waveform (binary) data only
Internal memory
(8MB)
512MB
(9728)
1GB
(9729)
2GB
(9830)
100
μ
s
1m 40s
1h 25m 20s
2h 46m 40s
5h 33m 20s
200
μ
s
3m 20s
2h 50m 40s
5h 33m 20s
11h 6m 40s
500
μ
s
8m 20s
7h 6m 39s
13h 53m 19s
1d 3h 46m 39s
1ms
16m 40s
14h 13m 19s
1d 3h 46m 39s
2d 7h 33m 19s
2
ms
33m 20s
1d 4h 26m 38s
2d 7h 33m 18s
4d 15h 6m 38s
5ms
1h 23m 20s
2d 23h 6m 34s 5d 18h 53m 14s 11d 13h 46m 34s
10ms
2h 46m 40s
5d 22h 13m 8s 11d 13h 46m 28s
23d 3h 33m 8s
20ms
5h 33m 20s 11d 20h 26m 15s 23d 3h 32m 55s
46d 7h 6m 15s
50ms
13h 53m 20s
29d 15h 5m 39s 57d 20h 52m 19s 115d 17h 45m 39s
100ms
1d 3h 46m 40s
59d 6h 11m 17s 115d 17h 44m 37s 231d 11h 31m 17s
200ms
2d 7h 33m 20s 118d 12h 22m 34s 231d 11h 29m 14s
-
★
-
500ms
5d 18h 53m 20s 296d 6h 56m 26s
-
★
-
1s
11d 13h 46m 40s
-
★
-
2s
23d 3h 33m 20s
1 min
694d 10h 40m
-
★
-
-
★
-
-
★
-
…
l
Recording interval of 100 μs to 1 min
l
Waveform data is saved directly in a binary format to a CF card or
USB memory.
Measure the instantaneous wave-
form at startup or a suddenly gen-
erated abnormal waveform.
High-speed measurement using the high-speed function
l
Fastest sampling period of 1 μs (measuring all channels simultaneously)
l
Measurement data is recorded in the instrument’s internal memory (1 MW).
1
2
3
4
5
Record RMS values and
instantaneous waveforms
simultaneously.
Example record of an abnormal
waveform
Applications
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Note: Use only Hioki CF cards that are guaranteed to operate with the HiCorder
for continuous long-term recording.
A waveform recorded using a waveform
judgment trigger. The judgment area can
be displayed simultaneously.
The MR8880 can measure the voltages
at different contacts without the need for
a differential probe.
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