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Network Recording Instrument for LAN
Recorders
MEMORY HiCORDER
8826

Insulated 32-Channel Recording, paper width 10.4 inch
Network Recording Instrument for LAN
The MEMORY HiCORDER 8826 can now be connected to a LAN, and when
used with a PC makes the ideal recorder for today's Internet-based environment.
For use with the 8826, HIOKI provides a wide assortment of input units suitable
for all types of signal measurement. The 8826 has a high waveform sampling rate
of 1M sample/s which is carried out for all 32 channels simultaneously. In addition,
the 8826 supports multichannel recording with wide 10.4-inch recording paper, a
memory capacity of 64 megawords for all 32 channels (when expansion memory is
installed), and a color LCD. Example of using measurement data in Excel
Level Recorders Play a Vital Role in
Many Areas of Modern Industry.
2
With a conventional pen recorder, even if all test data is written on the
paper, usually only a small portion of the data is needed. However, to
look for just a small important part requires very extensive search of
the recording paper.
MEMORY HiCORDER
8826 stores and
manages all waveform measurement
data electronically. Furthermore, use of a
LAN card and
LAN COMMUNICATOR
9333
enables high-speed data file transfer to PCs on a network.
A LAN-Connectable Recorder! Digitally Process
Test Data
- Features -

Internal sampling rate of 1 MS/s,
500 kS/s external sampling
rate
The A/D converter that digitizes measurement signals operates
at the high sampling rate of 1 M sample/s (1 µsec cycle).
Resolution for the voltage axis is 12 bits. Sampling is carried
out for all channels simultaneously.

Converts to text file used with a Wave viewer

(supplied accessories, PC application software)
To open measurement data in PC applications such as Excel,
the data must be converted to text data in the CSV format.
The PC application software which comes standard in the
package enables easy operation.

Connects to PCs and printers on a LAN network
Its use with PCs can be selected according to the usage. It
allows remote operation and data transfer via LAN connection,
GP-IB connection, or RS-232C connection.

On-screen help
Explanation of button operations and many basic operations
can be displayed on the screen with the provided online help
function.

Plug-in slots enhance versatility
The number of measurement channels can be matched to the
application requirements by using plug-in modules. New types
of converter amplifiers and other accessories to be introduced
in the future will allow direct measurement of various physical
quantities.

10.4 inch color TFT display
The large, bright display shows waveforms for all channels (32
analog + 32 logic channels) in 12 colors, allowing easy visual
identification. The display also greatly facilitates operation of
the unit.

Simultaneous measurement in up to 32 analog
channels
Featuring the highest number of input channels in this class,
the 8826 lets you simultaneously record in 32 analog + 32
logic channels. All analog inputs are isolated.

Built-in MO drive (factory option)
The internal MO (magneto-optical) disk drive can store up
to 640 megabytes on a single disk. A floppy disk drive and
type III PC card slot are provided as standard equipment. This
makes it easy to archive measurement data. Besides its internal
binary file format, the 8826 can also store data as ASCII files
and display screen shots as BMP files.

Large-capacity memory
In the standard memory configuration, the 8826 can store a
total of 16 mega-words. With expansion memory installed,
capacity is a full 64 mega-words. This provides for up to 2
mega-words per channel when 32 channels are used. Even with
high-speed sampling, long-term recording is possible.

CE Mark compliant
Complies with the EC directive determining safety standards
in Europe (within the EU). 3
- Application - Load shutdown test
Analysis of the relationship between the generator
voltage, rotation speed regulation, governor servo
operation condition, and the open and close timing
of the pressure regulator before and after load
shutdown can be performed.
FFT analysis function
FFT capability includes single-signal FFT for analyzing frequency
components, two-signal FFT for transfer function analysis, and octave analysis
for acoustic analysis. The source signal can be selected from waveform data
captured by the memory recorder, and isolating required sections is also
possible. (Number of data points: 1000 - 10000)
Vibration analysis
When installing rotating machinery, such as agitators, that create many
vibrations, damping precautions are normally taken to ensure that the
vibrations are not propagated directly to the floor surface. Analysis of the
vibration damping measures and effects can be conducted by measuring
the natural frequency and the transfer function. Ground fault line detection
To identify the ground fault line of transmission lines, measurement can
be conducted using the trigger that combines a leak current meter and the
recorder. This allows observation and recording of the waveform before and
after ground faulting to identify the line.
Load shutdown tests in power generation plants
For load shutdown tests in power generation plants, the pre-
trigger function can be used to measure and record waveforms
before and after the test, enabling accurate analysis. The vernier
function, which can be used to perform fine adjustment of
amplitudes, is also a useful tool. Momentary loss of power
recording
Momentary loss of power in power-supply
circuits can be recorded by using the voltage drop
detection trigger, thus enabling accurate waveform
recording of unexpected events. Recording of motor rush current
The rush current occurring when the power to a motor
or a relay is turned on can be accurately measured as a
waveform.
Research and development of
automobiles
In vehicle and engine running tests,
the relationship among various
parameters must be examined. Multi-
channel recorders are necessary to
accomplish this.
Plant maintenance
In plants, memory recorders are used to measure and
record the operation of solenoid and control valves.
Since the MEMORY HiCORDER 8826
can simultaneously create X-Y plots, the
relationship between flow and valve lift
can also be observed. Analysis of engine characteristics
The pressure waveforms of injection pipes and fuel-
injection pumps, etc., can be recorded and stored in
the internal memory and then superimposed on a
reference waveform for analysis. Measurement of the damping of vibrations
reaching the solid base from the rotating
machinery
By striking the agitator with an impulse hammer, the
vibrations propagated to the solid base can be measured by
the acceleration speed pick up. Finding the transfer function
can show to what extent specific frequencies are being
dampened. Measurement of the natural frequency of
objects
Resonance phenomena can be avoided by ensuring that the natural
frequency of an object is different from the vibration frequency of
the surroundings. By striking the object with an impulse hammer
and finding the transfer function, the natural frequency of the
object can be found.
Rotation frequency 4
High-Speed Response for Capturing Transient Events
- Function Details -

Zoom function
*In memory recorder function
To make the most of the large-capacity memory, it is possible
to display a compressed waveform simultaneously with a
magnified waveform. Since the 8826 is capable of storing
a large amount of data, high-speed sampling is also possible
for waveforms with a long duration. Accordingly, while
observing the compressed image of the entire waveform, it is
also possible to observe the magnified details of desired parts.
Compressed display of a part of the entire waveform is also
possible.

Clock input for external sampling
*In memory recorder function
The sampling rate for the memory recorder can be controlled by
the timing of an external clock signal. This is useful for example to
collect data synchronized to the running cycle of an engine.
Recording length using 32 channels
Segmentation into 3 blocks
Segmentation into 127 blocks
Segmentation
In the standard configuration, the 8826 can store a total of 16
mega-words, and with memory expansion 64 mega-words,
using internal solid-state memory. This provides ample capacity
to store data for all 32 channels. The table at right shows
possible recording times, according to the time axis setting and
the number of channels in use. A reduction in the number of
channels prolongs the recording time.
Large memory capacity allows long-term
recording of high- speed data
Time
Sampling period
Input waveform
I
n
p
u
t v
o
l
t
a
g
e
Sampling controlled by external
clock signal
Maximum frequency 500kHz
Time axis
Sampling
period
4-channel setting
4 MW/channel 40,000 DIV
32-channel setting
500 kW/channel 5,000 DIV
100s/DIV
1s
4 s
0.5 s
200s/DIV
2s
8 s
1 s
500s/DIV
5s
20 s
2.5 s
1ms/DIV
10s
40 s
5 s
2ms/DIV
20s
1 m 20 s
10 s
5ms/DIV
50s
3 m 20 s
25 s
10ms/DIV
100s
6 m 40 s
50 s
20ms/DIV
200s
13 m 20 s
1 m 40