MEMORY HiCORDER MR8740, MR8741
MEMORY HiCORDER
MR8740, MR8741
Fully Integrate into High-Speed,
Multi-channel Measurement Systems
Multi-channel
DVM UNIT MR8990
Up to 32 + 22 channels (MR8740)
Digital Voltage Meter
The MR8740 uses a two-block internal architecture, essentially
giving it the capabilities of two MEMORY HiCORDERs.
Up to 16 channels (MR8741)
Measure minute changes in voltage at a high level of precision. Simultaneous measurement of all channels--rather than
scanner-type measurement--dramatically reduces cycle
times.
High-speed isolated measurement
Systems Integration
20 MS/s isolated sampling
Ideal for rack-mounting
Simultaneous 20M sampling within the same block
Height of 4U (180 mm) or less
MR8740: 177 (H) × 426 (W) mm
MR8741: 160 (H) × 350 (W) mm
2
Are you having problems with multi-channel measurement or testing?
“We're using multiple DMM units with
a scanner to switch inputs. Measurement
takes too long…”
Reduced cycle times
“We can't embed our oscilloscope, so we
use it on a shelf. Our setup would be a lot
sleeker if we could fit it in.”
“We need to perform many different types
of measurements on a large number of
channels.”
Measure across multiple channels
at the same time
“Tall, large racks are dangerous in a production setting. I wonder if our setup can
be made smaller…”
“We're using multiple measuring instruments, and it's hard to control them all.
The wiring is a mess…”
Simplified systems
Rack-mountable design
Space-saving design
“I wish we could make measurements
faster and at a higher level of precision.”
High-speed, high-precision performance
Solve these issues with the MR8740/MR8741 Memory HiCorder.
A single-instrument solution for measuring multiple signal types and channels featuring
rack-style measurement units that can be selected freely according to the target application
Solution: The MR8990 DVM Unit
The MR8990 can measure even minute voltages previously measured
with a DMM. Thanks to a 0.1 μV resolution and precision of ±0.01%
rdg. ±0.0025% f.s., the MR8990 can capture minute voltage fluctuations as waveforms.
By switching from a bench-type DMM to a DVM unit, you can cut down
on the amount of space taken up by measuring instruments. With no need
to control multiple instruments, you can also simplify your system.
Solution: Extensive selection of measurement units
Thanks to a unit-based architecture that can accommodate voltage,
current, temperature, frequency, distortion, and control signal (logic)
measurement units, the MR8740/MR8741 is a single-instrument solution for measuring multiple parameters. As a bonus, the ability to
simultaneously record different signals on multiple channels cuts
down on measurement times.
Solution: Rack-mountable design
The MR8740/MR8741 can be mounted in a rack system for a clean,
uncluttered installation.
3
Application
Function testing of ECUs and EV inverter motors
The MR8740/MR8741 can be used to perform a range of waveform measurements of inverter output.
Torque
sensor
Encoder
n Hardware combinations
MR8740
8966
8971
9709
MR8990
MEMORY HiCORDER
ANALOG UNIT
CURENT UNIT
CLAMP SENSOR
DVM UNIT
×1
×17
×2
×3
×8
Battery
Motor
Inverter
The MR8740 simultaneously measures 34 analog voltage
waveform channels, 3 current waveform channels, and 16
DC voltage channels. DC voltage is measured at a high
level of precision with a DVM unit. (The instrument provides functionality for time-difference and statistical calculations for voltage waveforms.)
Load
Torque sensor
• Torque
• Rotation
MR8740
Testing of EV batteries
The MR8740/MR8741 supports high-precision voltage measurement with advanced functionality.
n Hardware combinations
MR8740 MEMORY HiCORDER ×1
× As needed
MR8990 DVM UNIT
The recorders can take voltage measurement of battery
cells, a task that requires a high level of precision and
advanced functionality, at 24-bit resolution and
precision of ±0.01% rdg. ±0.0025% f.s.
Since measurement units have a high input resistance, the effect on the measurement target can be reduced.
BA
TT
ER
Y
l Battery evaluation
(Example measurement of control
signal and charge/discharge time)
Testing of power equipment
The MR8740/MR8741 can be embedded in systems used to test equipment.
n Hardware combinations
MR8740 MEMORY HiCORDER ×1
ANALOG UNIT
×17
8966
8973
LOGIC UNIT
×6
The MR8740/MR8741 can perform characteristics testing
of power equipment (load rejection tests and switch tests),
measuring 42 channels of three-phase voltage and current
or sensor output and 112 channels of switch on/off input.
l Timed, multi-channel measurement with a logic unit
The MR8740/MR8741 ships standard with 16 channels of logic
input*1. You can add up to three*2 8973 Logic Units (16 channels
each), making the instruments ideal for timed measurement of
multiple channels.
*1 The MR8740 ships standard with 8 channels each in blocks I and II.
*2 The MR8740 can accommodate up to three measurement units in each block.
l Load rejection testing
Analyze correlation among factors such as the generator voltage
before and after rejection, the rate of frequency variability, the status
of governor servo operation, and voltage regulator switching timing.
4
The MR8740 is a rack-mountable instrument that can measure up to (32 + 22) channels. It uses a twoblock architecture (32ch + 22ch), essentially giving it the capabilities of two Memory HiCorders.
MR8740 32ch + 22ch model
Accommodates up to 27 measurement units.
Two-block architecture
(Block I: 16 units; block II: 11 units)
Standard support for 16 logic channels
Support for multi-channel measurement of up to 54 channels
Independent block operation
Switchable inter-block trigger synchronization
Support for applications using different functions
LOGIC Input terminal
16 slots
Block I
11 slots
Block II
Block I
8 ch
Block I : Analog 32ch, Logic 8ch
Block II : Analog 22ch, Logic 8ch
(There may be a lag of up to 1 μs or 3 samples between blocks I and II.)
Block II
8 ch
Since blocks I (32 channels) and II (22 channels) perform measurements independently, it is possible to set different function
and sampling speeds for each block. Operations such as starting
measurement are performed separately by each block, and different
measurement data files are used by each block.
For example...
Block I : MEMORY function, 20MS/s
Block II : FFT function, 20MS/s
A single instrument supports a variety of measurements, expanding the range of applications in which the device can be used.
Ideal for rack-mounting
The MR8740/MR8741 ship standard
with EIA standard-compliant rackmounting hardware.
The instruments also support JIS
standard racks. Please contact HIOKI
for more information.
[Rear] LAN (100BASE-TX) and USB (type A, for USB flash memory or a
mouse) connectors are standard on the rear of the instrument. The power inlet
and power switch are also located here.
5
The MR8741 is a bench-top instrument that delivers affordable measurement performance.
It features area judgment functionality and external control terminals.
MR8741 16ch model
Accommodates up to 8 measurement units.
Standard support for 16 logic channels
Area judgment function and external control terminals
[Front panel]
External control terminals
LOGIC terminais
[Rear] A vent (fan), power inlet, and power switch are
located on the rear of the instrument.
DVI-D
Connector
100BASE-TX
Connector
USB Connector
(Type A, for USB memory stick or mouse)
Use as a multi-channel WAVE COMPARATOR.
High-speed waveform judgment function
Judgment area
The MR8741’s waveform judgment function, which monitors whether a target
waveform has diverged from an area with a safe margin, makes it easy to measure
signal waveforms for which it can otherwise be difficult to make pass/fail judgments. The instrument can measure waveforms on multiple channels at the high
speed of 20 MS/s, providing immediate pass/fail judgments in maintenance and
production line applications.
When using a time-axis range slower than 100msec/div, measured waveforms
can be compared in near real-time, enabling you to detect failures on the spot.
Production can be halted in time to minimize resource waste.
Measured waveform
Compare captured waveform with reference area
Setting the waveform evaluation
[OUT] Return NG if any part of the waveform leaves the evaluation area.
[ALL OUT] Return NG if the entire waveform leaves the evaluation area.
Setting the
GO/NG stop mode
[GO] Stop recording on GO result.
[NG] Stop recording on NG result.
[GO] Stop recording on GO or NG result.
6
Unit-based architecture accommodates a variety of measurement applications.
High precision and high resolution
DVM UNIT MR8990
DIGITAL VOLTAGE METER
New unit designed exclusively for the MR8740/MR8741
The MR8990 DVM UNIT is a two-channel DC voltage measurement unit designed exclusively for use with the MR8740/MR8741. It
can measure minute fluctuations in output from sensors in automobiles and other equipment and voltage fluctuations in devices such as
batteries at high levels of precision and resolution.
Input Unit Comparison Chart (Sampling Period and Accuracy)
Features
High resolution: 24bit, 6.5-digit display
Thanks to a resolution of 0.1μV, the MR8990 can measure even minute
fluctuations in the output voltage of sensors and other equipment.
High accuracy: ±0.01% rdg. ±0.0025 % f.s.
The MR8990 performs measurements at a high precision of ±0.01% rdg.
±0.0025% f.s. and at speeds of up to 500 samples per second.
Max. allowable input: DC 500 V
The MR8990 can accommodate input ranging from minute to high voltages.
High input resistance
5mV/DIV to 500mV/DIV range: 100 MΩ or greater
: 10 MΩ ±5%
5V/DIV to 50V/DIV range
Specifications
Product guaranteed for one year
Accuracy guaranteed for one year
l Measurement range
Measurement range
Effective input
range(*)
Measurement
resolution
0.1 μV
5 mV/div
(f.s. = 100 mV)
-120 mV to 120 mV
50 mV/div
(f.s. = 1000 mV)
-1200 mV to 1200 mV
1 μV
-12 V to 12 V
10 μV
500 mV/div (f.s. = 10 V)
5 V/div
(f.s. = 100 V)
-120 V to 120 V
100 μV
50 V/div
(f.s. = 1000 V)
-500 V to 500 V
1 mV
Measurement range
(f.s. = 100 mV)
50 mV/div
(f.s. = 1000 mV)
500 mV/div (f.s. = 10 V)
5 V/div
(f.s. = 100 V)
50 V/div
(f.s. = 1000 V)
l Integration time
Power supply frequency
Input resistance
The MR8990 delivers high precision
and high resolution.
More than
l Resolution: 0.1μV
l Max. allowable input: DC500V
l Accuracy: ±0.01% rdg. ±0.0025% f.s.
100 MΩ
10 MΩ ±5%
*Measurement guaranteed accuracy range
l Measurement accuracy
5 mV/div
Input Unit Comparison Chart (Input Voltage and Sampling Speed)
NPLC: Less than 1
NPLC: More than 1
±0.01% rdg. ±0.015% f.s.
±0.01% rdg. ±0.01% f.s.
±0.01% rdg. ±0.0025% f.s.
±0.025% rdg. ±0.0025% f.s.
Integration time
50 Hz
20 ms × NPLC
60 Hz
16.67 ms × NPLC
NPLC: Settable from 0.1 to 0.9 (in increments of 0.1), 1 to 9 (in increments of 1), and 10 to 100 (in increments of 10).
The number of power line cycles (NPLC), representing the number of cycles in the power supply (50 Hz or 60 Hz) period, determines the integration
time. Larger NPLC values result in more effective rejection of noise caused by the power supply at the expense of lower sampling speeds.
l Temperature characteristics: ± (0.002% rdg. ±0.00025% f.s.) / °C
l A/D conversion
: ΔΣ modulation method 24bit
measurement method
: DC V
l Measurement functions
: 2ch
l Number of channels
: 2 ms (500 sampling/sec)
l Maximum sampling rate
: DC 500 V
l Max. allowable input
l Max. rated voltage to earth : AC, DC 300 V
Option for MR8990
TEST LEAD L2200
One set (Red×1, Black×1) , 70cm (2.30ft) length
Unit jack: Banana terminal
The tip can be replaced with a pin lead or alligator clip.
Max. allowable input: CAT IV 600V, CAT III 1000V
7
Choose from nine input units according to your measurement application.
The MR8740/MR8741 uses the same measurement units as the MR8847 MEMORY HiCORDER.
12-bit, 20 MS/s
High-speed sampling
16-bit, 1 MS/s
High resolution
RMS measurement
Distortion
measurement
ANALOG UNIT 8966
HIGH RESOLUTION UNIT 8968
DC/RMS UNIT 8972
STRAIN UNIT 8969
Voltage measurement
Voltage measurement
Voltage measurement (DC/RMS selectable)
Distortion measurement
2ch
2ch
2ch
2ch
Isolated BNC connector
Weidmuller SL 3.5/7/90G
Isolated BNC connector
Isolated BNC connector
Input connectors
(input impedance 1 MΩ, input capacitance 30 pF), (input impedance 1 MΩ, input capacitance 30 pF), (input impedance 1 MΩ, input capacitance 30 pF), (via Conversion Cable 9769, TAJIMI PRC03-12A10-7M10.5)
Max. rated voltage to earth(*): 300 V AC, DC
Max. rated voltage to earth(*): 300 V AC, DC
Max. rated voltage to earth(*): 300 V AC, DC
Max. rated voltage to earth(*): 33 Vrms, or 70V DC
Measurement range
5 mV to 20 V/div, 12 ranges
5 mV to 20 V/div, 12 ranges
5 mV to 20 V/div, 12 ranges
20 με to 1000 με/div, 6 ranges
1/100 of measurement range
1/1600 of measurement range
1/100 of measurement range
1/1250 of measurement range
Measurement
resolution
using 12-bit A/D conversion
using 16-bit A/D conversion
using 12-bit A/D conversion
using 16-bit A/D conversion
Highest sampling rate
20 MS/s
1 MS/s
1 MS/s
200 kS/s
±0.5
%
f.s.
Measurement
±0.5 % f.s.
±0.3 % f.s.
±0.5 % f.s.
RMS amplitude accuracy: ±1 % f.s.
accuracy
Measurement functions
Number of channels
(DC, 30 Hz to 1 kHz)
Frequency
characteristics
Input coupling
Max. allowable input
DC to 5MHz (-3dB)
DC to 100 kHz (-3dB)
DC to 400 kHz (-3dB)
DC to 20 kHz+1 (-3dB)
(with AC coupling: 7 Hz to 5 MHz -3dB) (with AC coupling: 7 Hz to 100 kHz -3dB) (with AC coupling: 7 Hz to 400 kHz -3dB)
AC/DC/GND
AC/DC/GND
AC/DC/GND
DC 400V
DC 400V
DC 400V
( ) with input isolated from the unit, the maximum voltage that can be applied between input channel and chassis and between input channels without damage
*
Temperature measurement
using a thermocouple
Frequency • Rotation
TEMP UNIT 8967
FREQ UNIT 8970
CURRENT UNIT 8971
Measurement functions
Temperature measurement with
thermocouple
Frequency measurement using voltage input
Current measurement using an optional sensor
Number of channels
2ch
2ch
2ch
1/1000 of measurement range
using 16-bit A/D conversion
1/2000 of measurement range
using 16-bit A/D conversion
Measurement
resolution
Specifications
(Integration mode)
Input connectors: Isolated BNC connector (input
Input connectors:
impedance 1 MΩ, input capacitance 30 pF)
Thermocouple input: plug-in connector,
Recommended wire diameter: single-wire, 0.14 to 1.5 Max. rated voltage to earth(*): 300 V AC, DC
mm2, braided wire 0.14 to 1.0 mm2 (conductor wire
diameter min. 0.18 mm), AWG 26 to 16
Frequency measurement range:
Input impedance: Min. 5 MΩ
Between DC to 100kHz (Min. pulse width 2μs), 1Hz/
( )
div to 5kHz/div (full scale= 20 div), 8 settings
Max. rated voltage to earth * : 300 V AC, DC
Accuracy: ±0.1% f.s. (exclude 5kHz/div), ±0.7% f.s. (at
Temperature measurement range:
10°C/div (-100 5kHz/div)
°C to 200°C)
Rotation measurement range:
50°C/div (-200 °C to 1000 °C)
Between 0 to 2 million rotations/minute
100°C/div (-200 °C to 2000°C)
(Min. pulse width 2μs), 100 (r/min)/div to 100k (r/
min)/div (full scale= 20 div), 7 settings
Thermocouple range:
Accuracy: ±0.1% f.s. (excluding 100k (r/min)/div),
K: -200 to 1350 °C J: -200 to 1100 °C
±0.7% f.s. (at 100k (r/min)/div)
E: -200 to 800 °C T: -200 to 400 °C
N: -200 to 1300 °C R: 0 to 1700 °C
Power frequency measurement range:
S: 0 to 1700 °C B: 400 to 1800 °C
50Hz (40 to 60Hz), 60Hz (50 to 70Hz), 400Hz (390 to
W (WRe5-26): 0 to 2000 °C
Reference junction compensation: internal/ external 410Hz) (full scale= 20 div), 3 settings
Accuracy: ±0.03Hz (exclude 400Hz range), ±0.1Hz
(switchable),
(400Hz range)
Line fault detection ON/OFF possible
Measurement accuracy:
Thermocouple K, J, E, T, N: ±0.1 % f.s. ±1 °C
(±0.1 % f.s. ±2 °C at -200 °C to 0 °C),
Thermocouple R, S, W: ±0.1 % f.s. ±3.5 °C
(at 0 °C to 400 °C or less), ±0.1 % f.s. ±3 °C (at 400 °C
or more),
Thermocouple B: ±0.1 % f.s. ±3 °C (at 400 °C or
more)
Reference junction compensation accuracy: ±1.5 °C
(added to measurement accuracy with internal reference junction compensation)
Integration measurement range:
2k counts/div to 1M counts/div, 6 settings
Accuracy: ±range/2000
Duty ratio measurement range:
Between 10Hz to 100kHz (minimum pulse width
2μs), 5%/div (full scale=20 div)
Accuracy: ±1% (10Hz to 10kHz),
±4% (10kHz to 100kHz)
Pulse width measurement range:
Between 2μs to 2sec, 500μs/div to 100ms/dv (full
scale=20 div)
Accuracy: ±0.1% f.s.
*
Clamp sensor direct-coupled current measurement
1/100 of measurement range
using 12-bit A/D conversion
Input connectors: Sensor connector (input impedance
1 MΩ, exclusive connector for current sensor via
conversion cable the 9318, common ground with
recorder)
Compatible current sensors: CT6865, CT6863, CT
6862, 9709, 9279, 9278, 9277, 9272-10 (To connect the 8971 via conversion cable the 9318)
Measurement range:
Using 9272-10 (20A), 9277: 100mA to 5A/div
(f.s.=20div, 6 settings)
Using CT6862: 200mA to 10A/div (f.s.=20div, 6
settings)
Using 9272-10 (200A), 9278, CT6863: 1A to 50A/
div (f.s.=20div, 6 settings)
Using 9279, 9709: 2A to 100A/div (f.s.=20div, 6
settings)
Accuracy:
Using 9278, 9279: ±0.85% f.s.
Using other sensor: ±0.65% f.s.
RMS amplitude accuracy: ±1% f.s. (DC, 30Hz to
1kHz), ±3% f.s. (1kHz to 10kHz)
RMS response time: 100ms (rise time from 0 to 90%
f.s.), Crest factor: 2 Frequency characteristics: DC to
100kHz, ±3dB (with AC coupling: 7Hz to 100kHz)
Highest sampling rate:
1 MS/s (simultaneous sampling across 2 channels)
8971 Current Unit precautions
• Cannot be used with the MR8741.
• Up to four units can be installed in a
single instrument.
• When using the 9709/CT6865, up to 7
current probes can be used.
Control signal observation
LOGIC UNIT 8973
Logic measurement using an
optional probe
16 channels (up to 4 logic probes can be connected)
Mini-DIN terminal (HIOKI logic probes only)
Compatible logic probes:
n 9320-01/9327
Detection of voltage signal or relay contact signal for High/
Low state recording
Input: 4 channels (common ground between unit and channels), digital/contact input, switchable (contact input can
detect open-collector signals)
Input resistance: 1 MΩ
(with digital input, 0 to +5 V)
500 kΩ or more (with digital input, +5 to +50V)
Pull-up resistance: 2 kΩ
(contact input: internally pulled up to +5 V)Digital input
threshold: 1.4V/ 2.5V/ 4.0V
Contact input detection resistance:
1.4 V: 1.5 kΩ or higher (open) and 500 Ω or lower (short)
2.5 V: 3.5 kΩ or higher (open) and 1.5 kΩ or lower (short)
4.0 V: 25 kΩ or higher (open) and 8 kΩ or lower (short)
Response speed:
9320-01: 500ns or lower
9327: Detectable pulse width 100ns or higher
Max. allowable input: 0 to +50V DC
(the maximum voltage that can be applied across input pins
without damage)
n MR9321-01
Detection of AC or DC relay drive signal for High/Low
state recording. Can also be used for power line interruption
detection
Input: 4 channels (isolated between unit and channels),
HIGH/LOW range switching
Input resistance: 100 kΩ or higher
(HIGH range), 30 kΩ or higher (LOW range)
Output (H) detection:
170 to 250 V AC, ±DC 70 to 250 V (HIGH range)
60 to 150 V AC, ±DC 20 to 150 V (LOW range)
Output (L) detection:
0 to 30 V AC, ±DC 0 to 43 V (HIGH range)
0 to 10 V AC, ±DC 0 to 15 V (LOW range)Response time:
Rising edge 1 ms max., falling edge 3 ms max.
(with HIGH range at 200 V DC, LOW range at 100 V DC)
Max. allowable input: 250 Vrms (HIGH range), 150 Vrms
(LOW range) (the maximum voltage that can be applied
across input pins without damage)
Up to three units can be installed in a single
instrument (or 1 block)
( ) with input isolated from the unit, the maximum voltage that can be applied between input channel and chassis and between input channels without damage
8
Analyze data on a computer
LAN terminal
USB receptacle A
(For USB memory device)
Easy recording of measurement data
Compatible to USB memory sticks
Measurement data can be saved on any generic USB memory device.
Measurement data can be easily recorded, and a USB
flash drive can be used to easily copy data to a computer.
Block II
Block I
LAN communications capability
HTTP/FTP server function
A 100BASE-TX LAN port is built in as standard equipment.
<HTTP server capability>
Access the unit via a web browser running on a computer,
for waveform observation and remote operation. Waveform
data of the MR8740/MR8741 series can also be downloaded
and pasted onto Excel.
<FTP server capability>
Copy the memory contents of the MR8740/
MR8741 (USB memory, internal RAM) to a
computer.
Analyzing data on a computer
l WAVE PROCESSOR 9335 (option)
• Waveform display and calculation
• Print function
l LAN COMMUNICATOR 9333 (option)
• Collect waveform data
• Remotely control Memory HiCorders with a PC
• Save data in CSV format and export to spreadsheet applications
l iPad App for Memory HiCorder HMR Terminal
(option)
Free app (exclusively for iPad) downloadable from the App Store
• Freely control waveforms using iPad’s gesture controls
• Multi-channel support – up to 32 channels (with MR8827,
MR8740) of waveform data at your fingertips
• Operate the Memory HiCorder via network
You can change settings, and monitor waveforms during
measurement.
*New function on Ver 2.0
Data can be viewed by the iPad using Hioki’s dedicated apps available from the
App Store. Search for “HIOKI” and download the “HMR Terminal” app.
HUB
■ 9335 Outline specifications (option)
Operating environment Computer running under Windows 10/8/7 (32/64-bit), Vista (32-bit), XP
• Display: Waveform display, X-Y display, cursor function, etc.
• File loading: Readable data formats (.MEM, .REC, .RMS, .POW)
Largest readable file: Largest file that can be saved by supported
instruments (Supported file size may be limited due to computer’s
Functions
operating environment.)
• Data conversion: Conversion to CSV format, batch conversion of multiple files
• Print function: Saving of print image files (with support for enhanced
metafile [EMF] format)
Print
• Print format: Select from no tiling, 2 to 16 tiles, 2 to 16 rows, X/Y 1 to
4 tiles, preview/hard copy
■ 9333 Outline specifications (option)
MR8740 (ver 3.12 or later), MR8741 (ver 2.12 or later) and similar products
Supported units
Computer running under Windows 10/8/7 (32/64-bit), Vista (32-bit), XP
Operating environment
Note: 9333 Ver.1.09 or later
Functions
*iOS is a registered trademark of Cisco Technology, Inc. and/or its affiliates in the United States and certain other countries.
*iPhone, iPad, iPad mini, iPad Pro and iPod touch are trademarks of Apple Inc.
*Apple and the Apple logo are trademarks of Apple Inc. App Store is a service mark of Apple Inc.
l Wave Viewer (Wv) Software (bundled software)
• Auto-saves waveform data to PC, Remote control of Memory
HiCorder (by sending key codes and receiving images on screen), print
reports, print images from the screen, receive waveform data in 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 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, or other
• Confirmation of binary data waveforms on a
computer
• Saving data in the CSV format for transfer to
spreadsheet software
■ HMR Terminal Outline specifications (free software)
■ Wave Viewer (Wv) Outline specifications (bundled software)
Operating environment Windows 10/8/7 (32/64-bit), Vista (32-bit), XP
Functions
Functions
• Simple display of waveform file
• Convert binary data file to text format, CSV
• Scroll display, enlarge/reduce, jump to cursor/trigger position, etc.
Supported units
MR8740, MR8741 and similar products
* calculated waveforms and logical waveforms not supported
Operating environment iOS on the iPad (Apple Inc. )
• Data acquisition: Send to iPad via FTP using a WiFi router, or load to
iPad via iTunes (PC app)
• Intuitively operate waveform level searches, maximum / minimum /
average values, zero position adjustment, and more at your fingertips
• Waveform monitoring
• Meter setting
* Logic waveforms and computational waveforms are not supported.
9
Convenient functions
Connect a display and mouse to enable standalone use.
Display and mouse connectivity
Measure without using a PC.
By connecting a display and mouse to the MR8740/
MR8741, you can display waveforms and operate the
instrument with a mouse.
The monitor display screen uses the same layout as the MR8847
Memory HiCorder series display. A mouse can be used to operate and
configure the instrument, providing a user experience that approximates
use of a keyboard. (Display and mouse not included.)
X-Y wave comparator
MR8741 only
Value monitor (DMM display)
DMM display (example: measurement using the MR8990)
Waveforms obtained through X-Y compositing are subject to area judgment.
The MR8741 includes functionality for judging X-Y waveforms.
Waveforms measured using the memory function and created
with X-Y compositing are subject to area judgment.
The X-Y waveforms captured from these and many other applications
can be tested against reference waveforms automatically:
• Alteration and pressure at press machines
• Pump pressure and flow
Input values can be monitored numerically in the manner of a
digital multimeter (DMM).
Numerical calculation function
Calculate parameter values from measured waveform
20 different built-in calculation types including effective (rms)
value, peak value, and maximum value.
Multiple channels can be measured and judged at once,
minimizing cycle times. Inter-channel calculations can also be
performed at high speed by means of internal processing, and the
results can be transferred to a computer.
Evaluation
settings
Numerical calculation settings
Evaluation settings
Number of data
High
level
Low
level
Phase difference =
Time difference T between wave A and wave B
Cycle of wave A
Numerical calculation results can be shown on waveform display
×360°
Histogram
10
FFT function
Frequency area data analysis (FFT function)
Specify an analysis point
Electrical distortion analysis/mechanical vibration analysis
Waveform in the MEM function
FFT analysis function
This function comprises single-signal FFT for tasks such as frequency component analysis, dual-signal FFT for transfer function analysis, and octave
analysis for acoustic measurements. The signal source for analysis are selectable from 1,000 to 10,000 data points.
FFT analysis from captured time domain data
(used with Memory function)
To use measurement data captured with the Memory function, the mouse
serves to specify analysis points, and processing results can now be displayed
at the same time. There is no need to go back and forth between the Memory
and FFT Functions to set the calculation start point. It is also possible to
view raw data measured with the Memory function and processing results
obtained from stored waveforms side by side. You can then check the effects
of window functions while viewing spectrum waveforms, resulting in a dramatic improvement in operation convenience during use of the analysis functions.
Source waveform (captured in Memory function),
and FFT analyzed waveform display simultaneously
Running spectrum display (MR8741 only)
Waveform comparison can be conducted even for FFT-analyzed waveforms.
Waveform judgment display in FFT
Recalculate by changing the number of
calculation points after measurement
Even for measurement data currently based on a lower number
of calculation points, it is possible to increase the number later
and perform analysis again. For example, data measured at a
setting of 1,000 points can be converted and reanalyzed with
a 10,000 point setting. This will result in a tenfold increase in
frequency analysis resolution. Of course, the opposite is also
possible, going for example from 10,000 points to 1,000 points.
Note: Recalculation with a different number of calculation points is not
possible if frequency averaging is set to ON.
1,000 points
Convert 1,000 to 10,000 points
Running spectrum display
Display ever-changing time-based spectrums in 3D and use
the mouse to load previously captured waveform. Data can
be saved as text for further graphical processing on Excel or
other spreadsheet applications.
11
Specifications
Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year)
Measurement
functions
Trigger functions
MEMORY (high-speed recording, X-Y), RECORDER (real-time
recording), FFT (frequency analysis)
Trigger mode
MEMORY (high-speed recording), FFT: Single, Repeat, Auto
RECORDER* (real-time recording): Single, Repeat
MR8740 : 27units + 16 logic channels (standard)
MR8741: 8units + 16 logic channels (standard)
Trigger sources
CH1 to CH16 (analog), Standard Logic 16ch + Logic Unit (Max. 3 units
48 channels), External, Timer, Manual (either ON or OFF for each source),
Logical AND/OR of sources
Trigger types
• Level: Triggering occurs when preset voltage level is crossed
(upwards or downwards)
• Voltage drop: Triggering occurs when voltage drops below peak
voltage setting (for 50/60 Hz AC power lines only)
• Window: Triggering occurs when window defined by upper and
lower limit is entered or exited
• Period: Rising edge or falling edge cycle of preset voltage value
is monitored and triggering occurs when defined cycle range is exceeded
• Glitch: Triggering occurs when pulse width from rising or falling
edge of preset voltage value is under run
• Event setting: Event count is performed for each source, and
triggering occurs when a preset count is exceeded
• Logic: 1, 0, or ×, Pattern setting
(Recorder functionality scheduled to be available by the end of 2012.)
Number of input
units
* For analog units, channels are isolated from each other and from frame GND.
For logic units and internal standard logic terminals, all channels have common GND.
Maximum sampling 20 MS/second (50 ns period, all channels simultaneously)
External sampling (10 MS/second, 100 ns period)
rate
Internal memory
Data storage media
MR8740: Block I; Total 512 M-words (16MW/ch)
Block II; Total 352 M-words (16MW/ch)
MR8741: Total 256 M-words (16MW/ch)
USB memory stick (USB 2.0)
Backup functions
(At 25°C/ 77°F)
Clock and parameter setting backup: at least 10 years
Waveform backup function: none
External control
connectors
(MR8741only)
Terminal block: External trigger input, Trigger output, External
sampling input, Two external outputs (GO/NG output), Three external
inputs (start, stop, save)
Level setting resolution 0.1% of full scale (full scale = 20 divisions)
External interfaces
LAN: 100BASE-TX (DHCP, DNS supported, FTP server, HTTP server)
USB: USB2.0 compliant, series A receptacle ×2
Trigger filter
Selectable 0.1div to 10.0div, or OFF (at MEMORY function)
ON (10ms fixed) or OFF (at RECORDER function*)
Trigger output
(MR8741 only)
Open collector (5 voltage output, active Low)
At Level setting: pulse width (Sampling period × data number after trigger)
At Pulse setting: pulse width (2ms)
Other functions
Trigger priority (OFF/ON), Pre-trigger function for capturing data
from before / after trigger event (at MEMORY function), Level display
during trigger standby, Start and stop trigger (At RECORDER function*),
Trigger search function
Environmental conditions Operation: 0°C (32°F) to 40°C (104°F), 20 % to 80 % rh
Storage: -10°C (14°F) to 50°C (122°F), 90 % rh or less
(No condensation)
Compliance standard
Safety: EN61010
Power supply
100 to 240 V AC, 50/60 Hz
Power consumption
MR8740: 250 VA, MR8741: 120 VA
MR8740: Approx. 426 mm (16.77 in) W × 177 mm (6.97 in) H × 505 mm
Dimensions and mass (19.88 in) D, 10.8 kg (381.0 oz)
(main unit only)
MR8741: Approx. 350 mm (13.78 in) W × 160 mm (6.30 in) H × 320 mm
(12.60 in) D, 5.4 kg (190.5 oz)
Instruction Manual × 1, Application Disk
(Wave Viewer Wv, Communication Commands table) × 1, Power cord × 1,
rack-mounting hardware (EIA standard) × 1set (MR8740 only)
Supplied
accessories
MEMORY (high-speed recording)
5 μs to 5 min/div (100 samples/div) 26 ranges, External sampling
(MR8740 only), Time axis zoom: ×2 to ×10 in 3 stages, compression: 1/2 to
1/20,000 in 13 stages
Time axis
Sampling period
Recording length
1/100 of time axis range (minimum 50 ns period)
Pre-trigger
Record data from before the trigger point at 0 to +100% or -95% of the
recording length in 15 stages, or in 1 div step settings
Numerical
calculation
• Simultaneous calculation for up to 16 selected channels
Average value, effective (rms) value, peak to peak value, maximum
value, time to maximum value, minimum value, time to minimum
value, period, frequency, rise time, fall time, standard deviation,
area value, X-Y area value, specified level time, specified time level,
pulse width, duty ratio, pulse count, four arithmetic operations, Time
difference, phase difference, high-level and low-level
• Calculation result evaluation output: GO/NG
• Automatic storing of calculation results
Waveform
processing
For up to 16 freely selectable channels, the following functions can be
performed (results are automatically stored): Four arithmetic operations,
absolute value, exponentiation, common logarithm, square root, moving
average, differentiation (primary, secondary), integration (primary,
secondary), parallel displacement along time axis, trigonometric functions,
reverse trigonometric functions
25 to 100,000 div, or arbitrary setting in 1-div steps (max. 160,000 div)
FFT
Storage waveform, Linear spectrum, RMS spectrum, Power spectrum,
Density of power spectrum, Cross power spectrum, Auto-correlation
function, Histogram, Transfer function, Crosscorrelation function, Impulse
response, Coherence function, 1/1 Octave analysis, 1/3 Octave analysis,
LPC analysis, Phase spectrum
Analysis mode
Analysis channels Selectable from all analog input channels
133 mHz to 8 MHz, External, (resolution 1/400, 1/800, 1/2000, 1/4000)
Frequency range
Number of sampling 1000, 2000, 5000, 10000 points
points
Window functions
Rectangular, Hanning, Hamming, Blackman, Blackman-Harris, Flattop,
Exponential
Display format
Single, Dual, Nyquist, Running spectrum
Averaging function
Time axis / frequency axis simple averaging, Exponential averaging,
Peak hold (frequency axis), Averaging times: 2 times to 10,000 times
Other functions
• Area comparison with reference waveform area for time domain
Waveform judgment waveform, X-Y waveform, or FFT analysis waveform
function
• Parameter calculated value comparison with reference value
(In MEMORY or FFT function)
• Output: GO/NG decision, Open-collector 5V,
Note: Judge waveforms in near real-time at samplings speeds of 100msec/div
(1ms sampling) or slower.
(MR8741 only)
Memory segmentation Max. 1024 blocks
• No logging
• X-Y waveform synthesis (1-screen, 4-screens)
• Overlay (always overlay when started/overlay only required waveforms)
Other functions
RECORDER (real-time recording)
10 ms to 1 hour/div, 19 ranges, time axis resolution 100 points/div
Note: Out of data acquired at selected sampling rate, only maximum and minimum value
data determined using 100 points/div units are stored. Time axis compression selectable
in 13 steps, from × 1/2 to × 1/20,000
Time axis
Sampling rate
1/10/100 μs 1/10/100 ms (selectable from 1/100 or less of time axis)
Recording length
Built-in presets of 25 - 50,000 div, or ‘‘Continuous’’ or
arbitrary setting in 1-div steps (max. 80,000 div)
Waveform memory
Auto save
Store data for most recent 80,000 div in memory
Data is automatically saved in USB memory stick after measurement stops
Maximum Recording Time for the internal memory (At MEMORY Function)
Time axis
5 μs/div
10 μs/div
20 μs/div
50 μs/div
100 μs/div
200 μs/div
500 μs/div
1 ms/div
2 ms/div
5 ms/div
10 ms/div
20 ms/div
50 ms/div
Sampling period
50 ns
100 ns
200 ns
500 ns
1 μs
2 μs
5 μs
10 μs
20 μs
50 μs
100 μs
200 μs
500 μs
Recording Time
0.8 s
1.6 s
3.2 s
8s
16 s
32 s
1 min 20 s
2 min 40 s
5 min 20 s
13 min 20 s
26 min 40 s
100 ms/div
200ms/div
500ms/div
1s/div
2s/div
5s/div
10s/div
30s/div
50s/div
1min/div
100s/div
2min/div
5min/div
1 ms
2ms
5ms
10ms
20ms
50ms
100ms
300ms
500ms
600ms
1.0s
1.2s
3.0s
Time axis
Sampling period
Recording Time
4 h 26 min 40 s 8 h 53 min 20 s 22 h 13 min 20 s
53 min 20 s 2 h 13 min 20 s
1 d 20 h 26 min 3 d 16 h 53 min 9 d 06 h 13 min 18 d 12 h 06 min 55 d 13 h 20 min 92 d 14 h 13 min 111 d 02 h 40 min 185 d 04 h 26 min 222 d 05 h 20 min 555 d 13 h 20 min
00 s
40 s
00 s
00 s
40 s
20 s
20 s
40 s
00 s
20 s
MR8741, MR8740 Options in Detail
*Input cords are not included. Please purchase them separately.
*The 8971 use up to 4 with MR8740; not compatible with MR8741. When using the
9709 or the CT6865 with Current Unit 8971, a total of 7 current probes can be used.
Model : MEMORY HiCORDER MR874x
ANALOG UNIT 8966
2 ch, Voltage input, DC to 5 MHz bandwidth
Model No. (Order Code) (Note)
2 ch, thermocouple temperature input
MR8740
MR8741
TEMP UNIT 8967
HIGH RESOLUTION UNIT 8968
MR8740
2 ch, voltage input, DC to 100 kHz bandwidth
STRAIN UNIT 8969
MR8741
2 ch, strain gauge type converter amp
2 ch, for measurement of frequency, rpm, pulse, etc.
CURRENT UNIT 8971
2 ch, for measuring current using dedicated current sensors,
bundled two Conversion cable 9318
* The Current unit 8971 up to four module
DC/RMS UNIT 8972
Input cable (E)
Input modules
FREQ UNIT 8970
2 ch, voltage/DC to 400 kHz, RMS rectifier, DC and 30 to 100
kHz bandwidth
*Voltage to ground is within this product's specifications. Separate power source
is also required.
DIFFERENTIAL PROBE 9322
Up to 200 A (High precision)
High-Precision pull-through current sensors, observe
waveforms from DC to distorted AC
AC/DC CURRENT SENSOR CT6862, 50 A
AC/DC CURRENT SENSOR CT6863, 200 A
Observe waveforms from DC to distorted AC
AC/DC CURRENT PROBE CT6841, 20 A
AC/DC CURRENT PROBE CT6843, 200 A
Observe waveforms of distorted AC (cannot for DC)
CLAMP ON SENSOR 9272-10, 200 A/20 A switchable
For up to 1kV AC or 2kV DC,
frequency band width up to 10MHz
AC ADAPTER 9418-15
100 to 240 V AC.
4 terminals, 16 ch
2 ch, high-precision DC V input, 0.1 μV resolution, high-speed
sampling 500 times/s
HIGH VOLTAGE UNIT U8974
2ch, voltage input, max. 1000 V DC and 700 V AC
WAVEFORM GENERATOR UNIT MR8790
PULSE GENERATOR UNIT MR8791
8 ch, Pulse output 0.1 Hz to 20 kHz, Pattern output
ARBITRARY WAVEFORM GENERATOR UNIT U8793
2 ch, FG function 10 mHz to 100 kHz, Arbitrary waveform generator D/
A refresh rate 2 MHz, Output 15 V
Output cable
* Please contact your local HIOKI distributor for connectors that
support Model MR8791.
CONNECTION CABLE L9795-01
CONNECTION CABLE L9795-02
Max. rated voltage to earth 33 Vrms or 70 VDC,
SMB to alligator clip, 1.5 m (4.92 ft) length
Max. rated voltage to earth 33 Vrms or 70 VDC,
SMB to BNC terminal, 1.5 m (4.92 ft) length
*Voltage is limited to the specifications of the input modules in use
ALLIGATOR CLIP L9790-01
Recommended
Red/black set attaches to the ends
of the cables L9790
Input cable (A)
CONTACT PIN 9790-03
Red/black set attaches to the ends
of the cables L9790
CONNECTION CORD L9790
GRABBER CLIP 9790-02
Flexible φ 4.1 mm (0.16 in) thin
dia., cable allowing for up to 600
V input. 1.8 m (5.91 ft) length
* The end clip is sold separately.
the cables L9790
* When this clip is attached to the end of the L9790,
input is limited to CAT II 300 V. Red/black set.
L9790-01
9790-03
9790-02
CONNECTION CORD L9198
Input cable (B)
φ 5.0 mm (0.20 in) dia., cable allowing for
up to 300 V input. 1.7 m (5.58 ft) length,
small alligator clip
φ 5.0 mm (0.20 in) dia., cable allowing for up to Attaches to the tip of the banana plug
600 V input. 1.8 m (5.91 ft) length, a detachable cable, CAT III 1000 V, 196 mm (7.72
large alligator clips are bundled
in) length
CONNECTION CORD L9217
Cord has insulated BNC
connectors at both ends, for signal
output, 1.6 m (5.25 ft) length
Max. rated voltage to earth is same as for Max. rated voltage to earth is same as for ininput module, max. input voltage 1 kV rms put module, max. input voltage 5 kV peak
(up to 500 kHz), 1.5 m (4.92 ft) length
(up to 1MHz), 1.5 m (4.92 ft) length
* Voltage to ground is within this product’s specifications, separate power source
is also required.
High-Precision pull-through current sensors, observe waveforms from DC to distorted AC
AC/DC CURRENT SENSOR 9709, 500 A
Observe waveforms from DC to distorted AC
AC/DC CURRENT PROBE CT6844, 500 A
AC/DC CURRENT PROBE CT6845, 500 A
AC/DC CURRENT PROBE CT6846, 1000 A
Power supply * Not necessary when using Current Unit 8971.
SENSOR UNIT CT9555 (1 ch)
SENSOR UNIT CT9556 (1 ch)
SENSOR UNIT CT9557 (4 ch, with Wave-
CONVERSION CABLE 9318
To connect the CT6841-6846,
CT6865/63, 9277/78/79, 9270/71/72
to the 8971/40/51, 38 cm (14.96 in)
length
form/Total Waveform/ Total RMS output)
10 mA class to 500 A (High speed)
CLAMP ON PROBE 3273-50
Wide DC to 50 MHz bandwidth, 10 mA-class to 30
Arms
CLAMP ON PROBE 3276
Wide DC to 100 MHz bandwidth, 10 mA-class to 30
Arms
*For reference only. Please purchase locally.
CLAMP ON PROBE 3274
Wide DC to 10 MHz bandwidth, up to 150 A rms
Thermocouple
CLAMP ON PROBE 3275
Wide DC to 2 MHz bandwidth, up to 500 A rms
Power supply * Necessary for use high speed current probes
Recommended
POWER SUPPLY 3272
• For Hioki wide bandwidth current probes
• Single sensor connectable
LOGIC PROBE 9327
POWER SUPPLY 3269
LOGIC PROBE MR9321-01
4-channel type, for voltage/contact signal 4 isolated channels, ON/OFF
ON/OFF detection (response pulse width detection of AC/DC voltage
100 ns or more, miniature terminal type) (miniature terminal type)
LOGIC PROBE 9320-01
CONVERSION CABLE 9323
Connect up to four sensors
100 A to 2000 A (Medium speed)
AC/DC CURRENT SENSOR CT7631, (Auto zero
CT7731)
DC, 1 Hz to 10 kHz (-3dB), 100 A, 1 mV/A output
AC/DC CURRENT SENSOR CT7636, (Auto zero
CT7736)
DC, 1 Hz to 10 kHz (-3dB), 600 A, 1 mV/A output
AC/DC CURRENT SENSOR CT7642, (Auto zero
CT7742)
WAVE PROCESSOR 9335
DC, 1 Hz to 10 kHz (-3dB), 2000 A, 1 mV/A output
Convert data, print and display
waveforms
DISPLAY UNIT CM7290
Power supply for the CT7000 series single drive, Measure,
Display, Signal output function
LAN COMMUNICATOR 9333
DISPLAY UNIT CM7291
• Waveform data collect function
• Remote control with the PC
PC Software
Input cord (C)
100:1 PROBE 9666
CONVERSION ADAPTER 9199
Receiving side banana, output BNC
terminal
CONNECTION CORD 9165
Cord has metallic BNC connectors
at both ends, use at metallic
terminal, 1.5 m (4.92 ft) length
* This probe does not expand the maximum rated voltage above ground of an isolated input.
Note: This probe does not expand the maximum Note: This probe does not expand the maximum
rated voltage above ground of an isolated input.
rated voltage above ground of an isolated input.
Up to 1000 A (High precision)
*Used for connecting the
4-channel type, for voltage/contact signal 9320/9321/MR9321 and the 9324
ON/OFF detection (response pulse width to the Memory HiCorder with
500 ns or more, miniature terminal type) small logic terminal models
CONNECTION CORD L9197 GRABBER CLIP 9243
10:1 PROBE 9665
ALLIGATOR CLIP L4935
Attaches to the tip of the
banana plug cable, CAT IV
600V, CAT III 1000V
* For the MR8990 *Voltage is limited to the specifications of the input modules in use
TEST LEAD L2200
70 cm (2.30ft) length, detachable large alligator
clips or needle tips are bundled, CAT IV 600V,
CAT III 1000V
Recommended
Logic signal measurement
L9790
EXTENSION CABLE L4931
Expands the length of the
cable with banana plug, 1.5
m (4.92 ft) length
* Only the small terminal types can be used. * The 9323 is not required for
the small-terminal types 9327, 9320-01, 9321-01 and MR9321-01.
Red/black set attaches to the ends of
*Voltage is limited to the specifications of the input modules in use
CONNECTION CABLE L4940
Banana plug - banana plug,
1.5 m (4.92 ft) length, red/
black each 1
BUS BAR CLIP L4936 MAGNETIC ADAPTER L4937 GRABBER CLIP 9243
Attaches to the tip of the conAttaches to the tip of the Attaches to the tip of the
nection cable, 196 mm (7.72 in)
banana plug cable, CAT banana plug cable, CAT III
length, CAT III 1000 V
1000V
III 600V
4 ch, DC output ±10 V, Sign waveform output 10 mHz to 20 kHz
Input cable (G) Other options for Input Temperature sensor
Output modules
* Input cords not included. Please purchase separately.
Input cable (F)
DIGITAL VOLTMETER UNIT MR8990
with built-in Bluetooth® wireless technology
Also available: MR8847 MEMORY HiCORDER series
Same specifications as the MR8741!
iPad App for MEMORY
HiCORDER HMR Terminal
Input cord (D)
Featuring a
built-in display
and printer
Download from the App Store Free
(exclusively for Apple Inc. iPad)
LAN CABLE 9642
DIFFERENTIAL PROBE DIFFERENTIAL PROBE AC ADAPTER
P9000-01
P9000-02
Z1008
Waveform only, up to 1 kV AC/ Waveform/RMS value switch- 100 to 240 V AC
DC, band width up to 100kHz
able, up to 1 kV AC/DC, band
width up to 100kHz
(Max. 16ch, 256MW memory, main unit only)
Main unit MR8740/8741 cannot operate alone. You must install one
or more optional input modules in the unit.
* Voltage input via banana terminals limited by the voltage
specifications of the respective input unit.
LOGIC UNIT 8973
(Max. 54ch, 864MW memory, main unit only)
Straight Ethernet cable, supplied with
straight to cross conversion adapter,
5 m (16.41 ft) length
Custom cable *For P9000. Inquire with your Hioki distributor.
(1) Bus powered USB cable, (2) USB(A)- Micro B cable, (3) 3-prong cable
l Portable recorder is designed for maximum mobility.
l Record data to a CF card and the built-in hard disk.
l X-Y recorder functionality.
l Available in three models with different memory capacities.
Note: Company names and Product names appearing in this catalog are trademarks or registered trademarks of various companies.
HIOKI (Shanghai) SALES & TRADING CO., LTD.
TEL +86-21-63910090 FAX +86-21-63910360
http://www.hioki.cn / E-mail: [email protected]
DISTRIBUTED BY
HIOKI SINGAPORE PTE. LTD.
TEL +65-6634-7677 FAX +65-6634-7477
HEADQUARTERS
E-mail: [email protected]
81 Koizumi, Ueda, Nagano, 386-1192, Japan
TEL +81-268-28-0562 FAX +81-268-28-0568
HIOKI KOREA CO., LTD.
http://www.hioki.com / E-mail: [email protected] TEL +82-2-2183-8847 FAX +82-2-2183-3360
E-mail: [email protected]
HIOKI USA CORPORATION
TEL +1-609-409-9109 FAX +1-609-409-9108
http://www.hiokiusa.com / E-mail: [email protected]
All information correct as of Dec. 12, 2016. All specifications are subject to change without notice.
MR8740E6-6ZM
Printed in Japan
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