Hioki MR8847A User manual

MEMORY HiCORDER MR8847A
For on-site work and R&D testing
Global Standard Recorder
All analog channels
Max. 32 ch
isolated
Logic channels
Max. 64 ch
16 channels standard
Max.
20 MS/s
high-speed sampling
Measuring multi-channel voltage and current simultaneously
Compatible with multi-channel input units (Ver. 2 .00 or later)
High-voltage 1000 V direct input measurement
Max. 1 MS/s high-speed sampling, 16-bit resolution measurement
Generate and record in a single unit
Reproduce and output problematic waveform measurements
No amp needed; max. 15 V output
ARBITRARY WAVEFORM GENERATOR UNIT
HIGH-VOLTAGE UNIT
4CH ANALOG UNIT 3CH CURRENT UNIT

2
Simply open the cover, insert the new paper, and then close the cover
Perform multi-channel, high-speed sampling at 20 M samples/sec
(time axis resolution: 50 nsec) for all channels at the same time.
Note: when U8975, U8977 or U8978 are installed, max. sampling speed is 10 MS/second
High-speed sampling allows you to measure the rising edge
of pulses and detect anomaly operations and instantaneous
waveforms that occur suddenly with high precision.
Input amp with built-in A/D converter
Connections between analog input
channels, and between the input
channel and the main unit, are
isolated by isolation elements.
So potential differences can be
measured without any concerns,
unlike with an oscilloscope.
Print large, high-denition hard copies for easy on-site checking.
Paper is easy to replace by inserting a new roll, rolling out the paper
slightly, and then closing the cover.
Isolation element
20 MS/sec sampling speed Isolated input for all channels
A4 size built-in printer
1 MS/s 20 MS/s
Observe the rising edge of pulses
A high-spec, high-quality
versatile measuring device
Vibration testing at the product development stage
Testing
Development

3
3
Hioki has developed an internal storage
FPGA for super-high-speed access. Used in
combination with large capacity high-speed
memory, this enables many hours of high-
speed sampling to be recorded.
The MR8847A is resistant to strong mechanical
shock and vibration, such as short drops.
The durable design has been tested to withstand
vertical drops of up to 50 cm (19.69 in.).
* Tested based on in-house conditions. A dropped unit is not guaranteed to be
free of damage or trouble.
Input
Input
A/D
conversion
A/D
conversion
Isolated
Isolated
MemoryMemory
writewrite
Screen display
Print output
The new internal SSD unit (available as an
additional option) has 128 GB of capacity,
allowing large amounts of data to be stored.
The MR8847A has 16 built-in logic input channels. Add 3
logic input units to record a total of 64 channels at once.
The waveforms of all channels can be displayed on a
single screen, making it ideal for timing measurements.
SSD 128 GB storage media
64 logic input channels
Abundant modules
Large 512 MW capacity (MR8847-53 only)
Durable design, with resistance to
dropping up to 50 cm (19.69 in.)
Measure and display multiple relays at the same time
NEW
Hioki has added new high-performance modules in
response to overwhelming demand.
The Memory HiCorder now supports a wide variety of
measurements.
Generating + monitoring
Power supply surveys for power equipment
Surveys
Development
4ch ANALOG UNIT U8975
4CH ANALOG UNIT U8978
3CH CURRENT UNIT U8977
NEW
NEW
NEW
Add eight 4CH Analog Input Units to record a total
of 32 channels at once. 100 V AC, up to 200 V DC,
and outputs from various sensors can be recorded
simultaneously for efficient measurement.
Up to 32 channels of
analog waveforms

4
An Extensive Line of Units
for Detecting a Wide Range
of Phenomena
Combine multiple units to record a range of phenomena
simultaneously. For example, use ve 4CH Analog Units to
measure 20 analog channels and three Logic Units to measure
up to 64 channels relay on/o signals or PLC (programmable
logic controller) signals. That’s simultaneous measurement of
84 channels!
Simultaneous measurement of multiple
locations across 32 channels at 5 MS/s
Simultaneously measure up to 32 channels
The U8975 accepts direct input of up to 200 V DC across 4 channels.
With a sampling rate of 5 MHz (across a frequency band of 2 MHz),
high speed, and 16-bit resolution, it can perform multi-channel,
high-speed, and high-resolution measurement.
4CH Analog Unit U8975
NEW
700 V AC
1000 V DC
4 ch
200 V DC
4 ch
100 mV f.s.
3275
(0.01 V/A) (10 V/A, 1 V/A, 0.1 V/A)
CT6711
3 mV
4 mV
2 mV
1 mV
400 80 120 160
Elapsed time [ms]
During measurement with the CT6711 (10 V/A range)
Maximum
resolution
0.1 μV
Battery Battery package
Direct, high-voltage input without dierential probes
The U8974 is ideal for measuring the primary and secondary sides of UPS
power supplies and commercial power supply transformers. It can measure
high-voltage power lines, including 380 V and 480 V circuits found in many
countries. With high-speed sampling at up to 1 MS/s and 16-bit resolution, it
can also be used in load rejection testing and switch testing.
High Voltage Unit U8974
Analyze correlations between phenomena, including voltage levels before
and after generator disconnection, RPM uctuation rates, governor servo
operating status, and voltage governor switching timing.
Simultaneously measure up to 32 channels
at high resolution
Thanks to four input channels and a high-sensitivity 100 mV f.s. range, the
U8978 can measure multiple channels of output from a variety of sensors. The
unit is ideal for use in measuring currents of various magnitudes in the
development of automobile accessory controls. Utilized in combination with the
multi-range Current Probe CT6711, it can measure currents from 1 mA to 50 A.
4CH Analog Unit U8978
NEW
Observe minuscule currents using high-sensitivity
wideband current probes
Current probe lineup
Analyze minuscule current waveforms
from low-power-consumption devices in
100 μA resolution. Record device current
consumption waveforms in high resolution
over extended periods of time.
Current consumption waveform for a temperature and humidity sensor
Specically designed for DC voltage measurement
with extremely high precision and resolution
The MR8990 can measure minuscule uctuations in sensor output of
automobiles and voltage uctuations in batteries, both at high precision
and resolution. It can accommodate maximum input of 500 V DC. The unit
is distinguished by its high input resistance. Additionally, the amount of
space taken up by instruments can be reduced by replacing a bench-style
DMM with the MR8847A. Systems can be simplied by eliminating the
need to control multiple instruments.
Digital Voltmeter Unit MR8990
Measurement range
Eective input
range
(Guaranteed
measurement
accuracy range)
Max.
resolution
Input
resistance
Measurement accuracy
NPLC:
less than 1
NPLC:
1 or more
5 mV/div (f.s. = 100 mV)
-120 mV to 120 mV
0.1 μV
100 MΩ
or more
± 0.01% rdg.
± 0.015% f.s.
± 0.01% rdg.
± 0.01% f.s.
50 mV/div (f.s. = 1000 mV)
-1200 mV to 1200 mV
1 μV
± 0.01% rdg.
± 0.0025% f.s.
500 mV/div (f.s. = 10 V) -12 V to 12 V 10 μV
5 V/div (f.s. = 100 V) -120 V to 120 V 100 μV 10 MΩ
± 5%
± 0.025% rdg.
± 0.0025% f.s.
50 V/div (f.s. = 1000 V) -500 V to 500 V 1 mV
● 6.5-digit display (resolution: 0.1 μV), 24-bit high resolution
For example, use ve 4CH Analog Units to measure 20 analog
channels and three Logic Units to measure up to 64 channels
relay on/off signals or PLC (programmable logic controller)
signals. That’s simultaneous measurement of 84 channels!

5
NEW
Hioki oers a wide range of current sensors to suit all
frequency band and rated current needs
3 ch
5 MS/s
Single solution for 3-phase current measurement
The U8977 delivers a sampling rate of 5 MS/s, frequency characteristics of 2
MHz, 16-bit A/D resolution, and DC accuracy of 0.3% f.s. to facilitate wideband,
high-precision current measurement using Hioki current sensors.
3CH Current Unit U8977
Power is supplied from the
current unit
Since current sensor power is
supplied directly from the current
unit, there’s no need to provide a
sensor power supply.
Power supply
Automatic conguration of
sensor scaling values
When you connect a current sensor,
the MR6000 will automatically detect
the model and set the appropriate
scaling value.
Zero-point stability
Wideband ux gate technology delivers high zero-point stability over
extended periods of time.
Long-term oset drift
Oset variability [% f.s.]
Elapsed time [h]
-0.015
-0.01
-0.005
0
0.015
0.005
0.01
7 865431 20
CT6841-05 (typical)
CT6843-05 (typical)
Sensitivity variations of high-accuracy clamp-type sensors caused by temperature
Ambient temperature [°C]
Change in sensitivity (typical) [% rdg.]
-1
-0.5
0
0.5
1
10080-20 0 20 40 60-40-60
CT6846-05 (1000 A), CT6845-05 (500 A)
CT6844-05 (500 A)
CT6843-05 (200 A)
CT6841-05 (20 A)
Previous models
9279 (500 A)
9278 (200 A)
9277 (20 A)
92799279
92779277
92789278
Compatible with high-precision sensors for
measuring large currents
Clamp-type high-accuracy
sensors deliver excellent
temperature characteristics,
allowing highly accurate
measurements to be made even
in the conned space of a
vehicle’s engine compartment.
Current sensor lineup
CT6843-05 CT6877
Output
waveform
example Sine wave Triangular wave Square wave Pulse wave
Ramp down wave Sweep output Program outputRamp up wave
Program and generate connected waveforms
2 ch
SMB terminals
Generate and record in a single unit
Just one MEMORY HiCORDER gives you a function generator mode,
arbitrary waveform generator mode, and waveform measurement mode.
This makes it easy to observe waveforms while varying test
conditions, such as changing the signal’s amplitude and frequency
and programming various waveforms to output in order.
Arbitrary Waveform Generator Unit U8793
Connect sensors directly
Output recorded waveforms without
modication
For example, you could output actual waveforms recorded from a car
without modication, and then use them for standalone testing. You
can also generate isolated output of up to 15 V without a generator or
amplier, which is traditionally necessary in order to generate output
while varying the signal's amplitude and frequency.
Process actual waveforms for
reproducibility testing
Process and calculate signals recorded with the MEMORY HiCORDER
and output the arbitrary waveforms that you create.
Waveform Maker Software included
After you install the included SF8000 Waveform Maker software on
your computer, you can create waveforms easily by either entering
them directly or by entering the functions behind them. You can also
quickly add noise and multiply waveforms.
Generate
Record Standalone testing
Max. 15 V output
Measurement
on actual car
Standalone
testing
2 channels, SMB terminals
2 types of output cables (sold separately) ►
Waveform Maker SF8000
for processing
as needed
Reproducibility testing

6
UPS Inverter
Inverter/UPS test
Perfect for inverter and UPS evaluation/start-up tests.
Record using both logic (control signals) and analog (primary/secondary voltage or current for a UPS or inverter).
The right unit for your
measurement needs
Power electronics
A dierential probe and a high-precision current sensor support broadband power electronics measurements.
Frequency analysis using FFT is also available.
Inverter Motor
Battery
Transformer dump tests
Interchannel isolation allows for safe circuit connections. Simultaneous high-speed sampling can record
waveforms before and after the dump. Input large numbers of control and circuit signals.
Maximum 1 MS/s high-speed sampling and 16-bit resolution in the high-voltage unit
allow the MR8847A to be used for interruption and switch testing
●Operation testing and evaluation during load fluctuation
●
Confirmation of UPS switching
●Transient response measurement of motors
●Long-term stability measurement by recorder function
4 ch
current
measurement
4 ch
voltage
measurement
2 ch
voltage
measurement
1 ch
current
measurement
5 ch
voltage
measurement
Device Model no. Units
MEMORY HiCORDER MR8847-51 1 unit
ANALOG UNIT 8966 1
CONNECTION CORD L9198 2
CURRENT UNIT 8971 1
CLAMP ON SENSOR 9272-05 1
CONVERSION CABLE CT9901 1
LOGIC PROBE 9327 1
Device Model no. Units
MEMORY HiCORDER MR8847-51 1 unit
4CH ANALOG UNIT U8978 1
DIFFERENTIAL PROBE 9322 4
AC ADAPTER 9418-15 4
3CH CURRENT UNIT U8977 2
AC/DC CURRENT SENSOR CT6875 4
Device Model no. Units
MEMORY HiCORDER MR8847-51 1 unit
HIGH-VOLTAGE UNIT U8 974 1
4CH ANALOG UNIT U8975 1
FREQ UNIT 8970 1
CONNECTION CORD L9197 5
CURRENT UNIT 8971 1
CLAMP ON SENSOR 9272-05 1
CONVERSION CABLE CT9901 1
LOGIC PROBE 9320-01 1
●The correlation between the voltage before and after the
interruption of a generator
●
RPM uctuation rate
●Governor servo motor operation conditions
●
Suppression machine switch timing

7
MEMORY HiCORDER MR8847 A
512 MW of high-capacity memory makes it easy to observe vibration waveforms for many hours while performing high-
speed sampling. This feature is perfect for detecting waveform peaks.
Observe minor vibrations
with high precision
Vibration testing equipment
Vibration/endurance tests
Save space by replacing multiple desktop DMM units with a single MEMORY HiCORDER.
This eliminates the need to control multiple units and simplies your system.
Replace multiple DMMs with a single Memory HiCorder
Install up to 8 DVM units to
expand up to 16 channels
Reproduce and output the observed anomalous waveforms without modication. When resolving problems observed
during research or development, you can reproduce such problems for eecient testing. You can also output waveforms
that you created yourself for testing and measure the results at the same time.
Record anomalous
waveforms
Reproduce and output
anomalous waveforms
Max. 15 V output
+
amplier
●Generate simulated output of each type of sensor signal
●
Fluctuating simulated output for 12 V CD car batteries
●
Analyze the relationship between engine control and
vibration
●
Confirm equipment durability
●
Minute uctuations in sensor output for automobiles
●
Voltage uctuations in batteries
2 ch
vibration
measurement
4 ch
strain
measurement
16 ch
voltage
measurement
Device Model no. Units
MEMORY HiCORDER MR8847-53 1 unit
4CG ANALOG UNIT U8978 1
STRAIN UNIT U8969 2
CHARGE UNIT U8979 1
Device Model no. Units
MEMORY HiCORDER MR8847-51 1 unit
4CH ANALOG UNIT U8978 1
ARBITRARY WAVEFORM
GENERATOR UNIT U8793 2
CONNECTION CORD L9198 4
Device Model no. Units
MEMORY HiCORDER MR8847-51 1 unit
DIGITAL VOLTAGE METER UNIT U8990 8
Anomaly simulation testing
4 ch
voltage
measurement
4 ch
waveform
output

8
Adjust levels while displaying waveforms
Detect instantaneous outages Setting screen for number of events
Set triggers while viewing
waveforms
Set input triggers while checking waveforms. You can
also display the settings screen separately as a floating
screen.
Trigger functions for monitoring all
measurement channels
- Level trigger for comparing a single voltage value
- Window trigger for comparing 2 voltage values
- Voltage drop trigger for detecting voltage drops in
commercial power lines
- Period trigger for monitoring periods
- Glitch trigger for detecting anomalies in pulses
- Pattern trigger for comparisons when the logic signal
is on/off
Acquiring data with triggers, and
post-acquisition searching
The MR8847A includes a search function for finding
abnormal waveforms within all of the acquired data.
You can use this function to search for anomalies after
data has been acquired, when it is too difficult to set
triggers because it is not possible to predict what types
of anomalies might be observed.
Set the number of events for each source
* Only for level and glitch triggers
Set trigger conditions in a variety of combinations.
Comment entry function
Set comments for each channel and display them on
the screen, even when observing multiple channels,
making identification easy.
Comments can be entered directly on the main unit.
And when printing, you can also print the channel
comments.
Full range of supporting functions
Help function
Understand operation methods without even reading
the instruction manual using the built-in help function.
Place the cursor on a field in the settings and press
the HELP button to view a detailed description of that
setting.
Press the “HELP” button A detailed description of the setting is displayed
On-site assistance
Label each channel
Master triggers

9
MEMORY HiCORDER MR8847 A
Zoom function
Display time axis reduced waveforms at the top of
the screen, and time axis enlarged waveforms at the
bottom of the screen. You can use the scroll function
to display the entire waveform while also observing
specific parts.
AB cursor function
Apply the Zoom function to set point A and point B for
the area you want to clip.
Connect to LAN for HTTP/FTP
server functions
Use the HTTP function to operate the MEMORY
HiCORDER with a browser on a PC connected via LAN.
You can also use the FTP function to acquire data from
the internal memory or from storage media inserted in
the MEMORY HiCORDER.
You can even acquire data from the internal memory
or from storage media connected to the MEMORY
HiCORDER via USB.
Check the entire waveform
Scan data at the cursor and the waveform's cross point
Enlarge/shrink along the time/vertical axes
Enlarge to observe waveform details
Conveniently manage scanned data on your computer
Specify the segment to save as binary or CSV data
Expand waveform
Extract
Collapse waveform
Scan
+
−
Acquire data Operate from computer
Hub
LAN connection
Enlarge waveforms
Scan and clip
PC operations

10
MR8847-51
(64 MW)
MR8847-52
(256 MW)
MR8847-53
(512 MW)
Maximum recording length
fluctuates depending on
number of channels used.
16 analog channels +
16 internal logic channels
16 analog channels +
16 internal logic channels
16 analog channels +
16 internal logic channels
Time axis
Sampling
period 40,000 divisions 160,000 divisions 320,000 divisions
5 μs/div 50 ns 0.2 s 0.8 s 1.6 s
10 μs/div 100 ns 0.4 s 1.6 s 3.2 s
100 μs/div 1 μs 4 s 16 s 32 s
1 ms/div 10 μs 40 s 2 min 40 s 5 min 20 s
100 ms/div 1 ms 1 h 06 min 40 s 4 h 26 min 40 s 8 h 53 min 20 s
1 s/div 10 ms 11 h 06 min 40 s 1 d 20 h 26 min 40 s 3 d 16 h 53 min 20 s
1 min/div 600 ms 27 d 18 h 40 min 00 s 111 d 02 h 40 min 00 s 222 d 05 h 20 min 00 s
5 min/div 3.0 s 138 d 21 h 20 min 00 s 555 d 13 h 20 min 00 s
1111 d 02 h 40 min 00 s
Maximum recording time to internal memory (excerpt)
- Caution: available recording duration is determined by internal RAM capacity, not
by external media
- Caution: for more reliable data protection, we recommend use of Hioki CF cards
or
USB DRIVE Z4006 , which are guaranteed to work with the instrument
- Note: table shows maximum values at arbitrary recording length settings
- When measuring at sampling speed of 100 msec/div (1 msec sampling) or
slower, data can be saved to media while measuring
Analysis software
Simultaneous recording on storage media
Sampling is done at the user-set period,
and all data is recorded
●Automatic data saving on SSD/CF card or USB memory stick
●During high-speed sampling, data is written to internal memory
first and later saved on other media
●
During low-speed sampling, data is written to internal memory
while also saved on other media
●Effective in reducing the dead time between measurements
A/D conversion Store on internal memory
Save on devices and media
CF card USB memory stick
Input
Record all
sampling data
Input
SSD
Sampling period
Recording
method
Record the data you need
■9335 brief specifications
Operating
environment
Windows 10/8/7 (32-/64-bit)
Functions
- Display functions: waveform display, X-Y display, cursor function, etc.
- File loading: readable data formats (.MEM, .REC, .RMS, .POW)/
maximum loadable file size: maximum file size that can be saved
by a given device (file size may be limited depending on the com-
puter configuration)
- Data conversion: conversion to CSV format, batch conversion of
multiple files, etc.
Printing
- Print function: printing image file output (expanded META type,
".EMF")
- Print formatting: not divided; divided by 2, 4, 8, or 16; 2, 4, 8 or
16 columns; X-Y1, X-Y2 or X-Y4 screen, preview, hard copy
WAVE PROCESSOR 9335
●Waveform display, calculations
●Print function
(software sold separately)
LAN COMMUNICATOR 9333
●Auto-save waveform data to PC
●
Remote control via LAN connection
●Save in CSV format and transfer
to spreadsheet programs
(software sold separately)
■9333 brief specifications
Operating
environment
Windows 10/8/7 (32 - /64-bit), Vista (32-bit), XP, (9333 ver.1.09 or later)
Functions
- Auto-saves waveform data to PC, remote control of Memory
HiCorder (by sending key codes and receiving images on screen),
print report, print images from the screen, receive waveform data
in the same format as waveform files from the Memory HiCorder
(binary only)
- Waveform data acquisition: accept auto-saves from the Memory
HiCorder, same format as auto-save files of the Memory HiCorder
(binary only), print automatically with a Memory HiCorder from a
PC. The Memory HiCorder’s print key launches printouts on the PC
- Waveform viewer: simple display of waveform files, conversion to
CSV format, etc.
Memory functions
*When sampling at low speed of 100 msec/div or less