MEMORY HiCORDER MR8740/MR8741
MEMORY HiCORDER MR8740/MR8741
Recorders
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.
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.
Up to 16 channels (MR8741)
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
8966
ANALOG UNIT
×17
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
11 slots
Block I
Block II
Block I
8 ch
Block I : Analog 32ch, Logic 8ch
Block II : Analog 22ch, Logic 8ch
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.
(There may be a lag of up to 1 μs or 3 samples between blocks I and II.)
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
Input Unit Comparison Chart (Input Voltage and Sampling Speed)
l Measurement range
Measurement range
5 mV/div
50 mV/div
(f.s. = 100 mV)
(f.s. = 1000 mV)
500 mV/div (f.s. = 10 V)
5 V/div
50 V/div
(f.s. = 100 V)
(f.s. = 1000 V)
-120 mV to 120 mV
-1200 mV to 1200 mV
Measurement range
50 mV/div
(f.s. = 100 mV)
(f.s. = 1000 mV)
500 mV/div (f.s. = 10 V)
5 V/div
50 V/div
(f.s. = 100 V)
(f.s. = 1000 V)
0.1 μV
1 μV
-12 V to 12 V
10 μV
-120 V to 120 V
-500 V to 500 V
l Measurement accuracy
5 mV/div
Measurement
resolution
Effective input
range(*)
100 μV
1 mV
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
NPLC: Less than 1
±0.01% rdg. ±0.015% f.s.
NPLC: More than 1
±0.01% rdg. ±0.01% f.s.
±0.01% rdg. ±0.0025% f.s.
±0.025% rdg. ±0.0025% f.s.
l Integration time
Power supply frequency
Integration time
60 Hz
16.67 ms × NPLC
50 Hz
20 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
Isolated BNC connector
Isolated BNC connector
Weidmuller SL 3.5/7/90G
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
Measurement
functions
Number of channels
Measurement
resolution
Specifications
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
Clamp sensor direct-coupled
current measurement
Control signal
observation
TEMP UNIT 8967
FREQ UNIT 8970
CURRENT UNIT 8971
LOGIC UNIT 8973
Temperature measurement with
thermocouple
Frequency measurement using
voltage input
Current measurement using an
optional sensor
2ch
2ch
1/2000 of measurement range
using 16-bit A/D conversion
1/1000 of measurement range
using 16-bit A/D conversion
2ch
1/100 of measurement range
using 12-bit A/D conversion
(Integration mode)
Input connectors: Isolated BNC connector Input connectors: Sensor connector (input
Input connectors:
Thermocouple input: plug-in connector,
(input impedance 1 MΩ, input capacitance 30 pF) impedance 1 MΩ, exclusive connector for
Recommended wire diameter: single-wire, 0.14 to Max. rated voltage to earth(*): 300 V AC, DC current sensor via conversion cable the
2
2
9318, common ground with recorder)
1.5 mm , braided wire 0.14 to 1.0 mm (conductor
wire diameter min. 0.18 mm), AWG 26 to 16
Frequency measurement range:
Compatible current sensors: CT6865, CT6863,
Input impedance: Min. 5 MΩ
Between DC to 100kHz (Min. pulse width 2μs),
Max. rated voltage to earth(*): 300 V AC, DC 1Hz/div to 5kHz/div (full scale= 20 div), 8 settings CT 6862, 9709, 9279, 9278, 9277, 9272-10 (To
connect the 8971 via conversion cable the 9318)
Accuracy: ±0.1% f.s. (exclude 5kHz/div),
±0.7% f.s. (at 5kHz/div)
Temperature measurement range:
Measurement range:
10°C/div (-100 °C to 200°C)
Using 9272-10 (20A), 9277: 100mA to 5A/div
Rotation measurement range:
50°C/div (-200 °C to 1000 °C)
(f.s.=20div, 6 settings)
Between 0 to 2 million rotations/minute
100°C/div (-200 °C to 2000°C)
Using CT6862: 200mA to 10A/div (f.s.=20div,
(Min. pulse width 2μs), 100 (r/min)/div to 100k
6 settings)
(r/min)/div (full scale= 20 div), 7 settings
Thermocouple range:
Using 9272-10 (200A), 9278, CT6863: 1A to
Accuracy: ±0.1% f.s. (excluding 100k (r/min)/
K: -200 to 1350 °C J: -200 to 1100 °C
50A/div (f.s.=20div, 6 settings)
div), ±0.7% f.s. (at 100k (r/min)/div)
E : -200 to 800 °C T: -200 to 400 °C
Using 9279, 9709: 2A to 100A/div (f.s.=20div,
N: -200 to 1300 °C R:
0 to 1700 °C
6 settings)
Power frequency measurement range:
S:
0 to 1700 °C B: 400 to 1800 °C
50Hz (40 to 60Hz), 60Hz (50 to 70Hz), 400Hz Accuracy:
W (WRe5-26): 0 to 2000 °C
(390 to 410Hz) (full scale= 20 div), 3 settings Using 9278, 9279: ±0.85% f.s.
Reference junction compensation:
Accuracy: ±0.03Hz (exclude 400Hz range), Using other sensor: ±0.65% f.s.
internal/ external (switchable),
±0.1Hz (400Hz range)
RMS amplitude accuracy: ±1% f.s. (DC,
Line fault detection ON/OFF possible
30Hz to 1kHz), ±3% f.s. (1kHz to 10kHz)
Integration measurement range:
RMS response time: 100ms (rise time from
Measurement accuracy:
2k
counts/div
to
1M
counts/div,
6
settings
0 to 90% f.s.), Crest factor: 2 Frequency
Thermocouple K, J, E, T, N: ±0.1 % f.s. ±1 °C
Accuracy:
±range/2000
characteristics: DC to 100kHz, ±3dB (with
(±0.1 % f.s. ±2 °C at -200 °C to 0 °C),
AC coupling: 7Hz to 100kHz)
Thermocouple R, S, W: ±0.1 % f.s. ±3.5 °C
Duty ratio measurement range:
(at 0 °C to 400 °C or less), ±0.1 % f.s. ±3 °C (at
Between 10Hz to 100kHz (minimum pulse Highest sampling rate:
400 °C or more),
width 2μs), 5%/div (full scale=20 div)
1 MS/s (simultaneous sampling across 2 channels)
Thermocouple B: ±0.1 % f.s. ±3 °C (at 400 °C
Accuracy: ±1% (10Hz to 10kHz),
or more)
±4% (10kHz to 100kHz)
8971 Current Unit precautions
Reference junction compensation accuracy:
• Cannot be used with the MR8741.
±1.5 °C (added to measurement accuracy with Pulse width measurement range:
• Up to four units can be installed in a
internal reference junction compensation)
Between 2μs to 2sec, 500μs/div to 100ms/
dv (full scale=20 div)
Accuracy: ±0.1% f.s.
*
single instrument.
using the 9709/CT6865, up to 7
current probes can be used.
• When
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 App Store
• iPad-unique gestures let you analyze measurement data any way you like
• Multi-channel support – up to 32 channels (with
MR8740) of waveform data at your fingertips
• Supports MR8740/41 and MEM data from
MR8847s
HUB
■ 9335 Outline specifications (option)
Operating environment Windows 8/7 (32/64-bit), Vista (32-bit), XP, 2000
• 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), or other
Supported units
Operating environment Windows 8/7 (32/64-bit), Vista (32-bit), XP, (The 9333 ver.1.09 or later)
Functions
l Wave Viewer (Wv) Software (bundled software)
• Confirmation of binary data waveforms on a
computer
• Saving data in the CSV format for transfer to
spreadsheet 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
■ HMR-Terminal Outline specifications (free software)
Supported units
MR8740, MR8741, MEM-format waveform data from MR8847-01/-02/-03
(computational waveforms and logical waveforms not supported)
Operating environment Apple iPad
• Data acquisition: Send to iPad via FTP using a WiFi router, or load to
iPad via iTunes (PC app)
Functions
• Waveform level search, maximum value/minimum value/average value,
Intuitive fingertip manipulation of channel zero position, or other
■ Wave Viewer (Wv) Outline specifications (bundled software)
Operating environment Windows 8/7 (32/64-bit), Vista (32-bit), XP, 2000
Functions
• Simple display of waveform file
• Convert binary data file to text format, CSV
• Scroll display, enlarge/reduce, jump to cursor/trigger position, etc.
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 (product guaranteed for one year)
Measurement
functions
Trigger functions
MEMORY (high-speed recording, X-Y), RECORDER (real-time
recording), FFT (frequency analysis)
Trigger mode
MR8740 : 27units + 16 logic channels (standard)
MR8741 : 8units + 16 logic channels (standard)
Trigger sources
MEMORY (high-speed recording), FFT: Single, Repeat, Auto
RECORDER* (real-time recording): Single, Repeat
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
• 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
MR8740: Block Ⅰ; Total 512 M-words (16MW/ch)
Block Ⅱ; Total 352 M-words (16MW/ch)
Internal memory
MR8741: Total 256 M-words (16MW/ch)
USB memory stick (USB 2.0)
Data storage media
Trigger types
Clock and parameter setting backup: at least 10 years
Waveform backup function: none
Backup functions
(At 25°C/ 77°F)
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)
LAN: 100BASE-TX (DHCP, DNS supported, FTP server, HTTP server)
External interfaces
USB: USB2.0 compliant, series A receptacle ×2
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
100 to 240 V AC, 50/60 Hz
Power supply
Power consumption MR8740: 250 VA, MR8741: 120 VA
Dimensions and MR8740: Approx. 426 mm (16.77 in) W × 177 mm (6.97 in) H × 505
mm (19.88 in) D, 10.8 kg (381.0 oz)
mass
MR8741: Approx. 350 mm (13.78 in) W × 160 mm (6.30 in) H × 320
(main unit only)
mm (12.60 in) D, 5.4 kg (190.5 oz)
Instruction Manual × 1, Application Disk
Supplied
(Wave Viewer Wv, Communication Commands table) × 1, Power cord
accessories
× 1, rack-mounting hardware (EIA standard) × 1set (MR8740 only)
MEMORY (high-speed recording)
Time axis
Sampling period
Recording length
Pre-trigger
Numerical
calculation
Waveform
processing
Level setting resolution 0.1% of full scale (full scale = 20 divisions)
Selectable 0.1div to 10.0div, or OFF (at MEMORY function)
ON (10ms fixed) or OFF (at RECORDER function*)
Open collector (5 voltage output, active Low)
At Level setting: pulse width (Sampling period × data number after trigger)
At Pulse setting: pulse width (2ms)
Trigger priority (OFF/ON), Pre-trigger function for capturing data
f rom before / a f ter t r igger event (at M EMORY f unction),
Level display during trigger standby, Start and stop trigger (At
RECORDER function*), Trigger search function
Trigger filter
Trigger output
(MR8741 only)
Other functions
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
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
Analysis channels Selectable from all analog input channels
Frequency range 133 mHz to 8 MHz, External, (resolution 1/400, 1/800, 1/2000, 1/4000)
Number of sampling points 1000, 2000, 5000, 10000 points
25 to 100,000 div, or arbitrary setting in 1-div steps (max. 160,000 div)
Window functions Flattop, Exponential
Single, Dual, Nyquist, Running spectrum
Display format
1/100 of time axis range (minimum 50 ns period)
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
• 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
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
Rectangular, Hanning, Hamming, Blackman, Blackman-Harris,
Time axis / frequency axis simple averaging, Exponential averaging,
Averaging function Peak hold (frequency axis), Averaging times: 2 times to 10,000 times
Other functions
Waveform judgment • Area comparison with reference waveform area for time domain
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
1/10/100 μs 1/10/100 ms (selectable from 1/100 or less of time axis)
Sampling rate
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 Store data for most recent 80,000 div in memory
Auto save
Data is automatically saved in USB memory stick after measurement
stops
Maximum Recording Time for the internal memory (At MEMORY Function)
5μs/div
10μs/div
20μs/div
50μs/div
100μs/div
200μs/div
500μs/div
1ms/div
2ms/div
5ms/div
10ms/div
20ms/div
50ms/div
Sampling period
50ns
100ns
200ns
500ns
1μs
2μs
5μs
10μs
20μs
50μs
100μs
200μs
500μs
Recording Time
0.8s
1.6s
3.2s
8s
16s
32s
1min 20s
2min 40s
5min 20s
13min 20s
26min 40s
100ms/div
200ms/div
500ms/div
1s/div
2s/div
5s/div
10s/div
30s/div
50s/div
1min/div
100s/div
2min/div
1ms
2ms
5ms
10ms
20ms
50ms
100ms
300ms
500ms
600ms
1.0s
1.2s
3.0s
Recording Time 4h 26min 40s 8h 53min 20s
22h 13min
20s
1d 20h
26min 40s
3d 16h
53min 20s
9d 06h
13min 20s
18d 12h
06min 40s
55d 13h
20min 00s
92d 14h
13min 20s
111d 02h
40min 00s
185d 04h
26min 40s
222d 05h
20min 00s
555d 13h
20min 00s
Time axis
Time axis
Sampling period
53min 20s 2h 13min 20s
5min/div
Configuration of options
DIGITAL VOLTMETER UNIT MR8990
2 ch, high-precision DC V input, 0.1 μV resolution,
high-speed sampling 500 times/s
ANALOG UNIT 8966
2 ch, Voltage input, DC to 5 MHz bandwidth
TEMP UNIT 8967
2 ch, thermocouple temperature input
HIGH RESOLUTION UNIT 8968
2 ch, voltage input, DC to 100 kHz bandwidth
Logic signal measurement
Small terminal type only
CONVERSION CABLE 9323
Recommended
LOGIC PROBE 9327
4-channel type, for voltage/contact signal
ON/OFF detection (response pulse width
100 ns or more, miniature terminal type)
LOGIC PROBE MR9321-01 LOGIC PROBE 9320-01
4 isolated channels, ON/OFF
detection of AC/DC voltage
(miniature terminal type)
STRAIN UNIT 8969
4-channel type, for voltage/contact signal * This cable is not required for the
ON/OFF detection (response pulse width small-terminal types 9327, 9320-01,
500 ns or more, miniature terminal type) 9321-01 and MR9321-01.
*Connect directly to the analog input module
2 ch, strain gauge type converter amp
*Includes Conversion Cable 9769
3272
FREQ UNIT 8970
2 ch, for measurement of frequency, rpm, pulse, etc.
DC/RMS UNIT 8972
2 ch, voltage/DC to 400 kHz, RMS rectifier, DC and
30 to 100 kHz bandwidth
LOGIC UNIT 8973
4 terminals, 16 ch
CURRENT UNIT 8971
2 ch, for measuring current using dedicated current
sensors, bundled two Conversion cable 9318
3274
3275
3273-50
3276
3269
POWER SUPPLY 3272
CLAMP ON PROBE 3276
Single sensor connectable
DC to 100 MHz wideband response,
mA-class current up to 30 Arms
POWER SUPPLY 3269
Connect up to four sensors
CLAMP ON PROBE 3275
DC to 2 MHz wideband response, mA-class
current up to 500 Arms
CLAMP ON PROBE 3274
DC to 10 MHz wideband response, mA-class
current up to 150 Arms
CLAMP ON PROBE 3273-50
Voltage measurement
DC to 50 MHz wideband response, mA-class
current up to 30 Arms
(Voltage is limited to the specifications of the input modules in use)
ALLIGATOR CLIP L9790-01
Recommended
*The 8971 Current Unit precautions (1) Cannot be used with the MR8741. (2) Up to 4 units can be installed in a MR8740
single instrument. (3) When using the 9709, up to 7 current probes can be used. (4) Cannot use the CT6865
*Power supply unit 9555-10 for the 9272-10 to the 9279 clamp sensors, except for connecting to the Current unit 8971
Red/black set attaches to the
ends of the cables L9790
CONTACT PIN 9790-03
CURRENT UNIT 8971
Red/black set attaches to the
ends of the cables L9790
GRABBER CLIP 9790-02
CONNECTION CORD L9790
MEMORY HiCORDER MR8740 (main unit only)
MEMORY HiCORDER MR8741 (main unit only)
9790-03
L9790-01
9790-02
CONNECTION CORD L9198
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
CONVERSION CABLE 9318
The 9270 to 9272s, 9277 to 9279s connects to the
8971/40/51, 38 cm (14.96 inch) length
UNIVERSAL CLAMP ON
CT 9279
AC/DC CURRENT
SENSOR 9709
Note: The MR8740s cannot operate alone. You must install one or
more optional input modules in the unit.
Voltage measurement (For DVM unit MR8990 only)
Current measurement 2
Red/black set attaches to the
ends of the cables L9790
* When this clip is attached to
the end of the L9790, input is
limited to 300 V. Red/black set.
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.
L9790
600 Vrms insulated wire, 500 A AC/DC rated
CAT III 1000 V, 500 A AC/DC rated current, current, DC to 20 kHz response, φ 40 mm (1.57 in)
DC to 100 kHz response, φ 36 mm (1.42 in) core dia., 3 m (9.84 ft) cord length, Not CE marked
core dia., 3 m (9.84 ft) cord length
UNIVERSAL CLAMP ON
CT 9278
AC/DC CURRENT SENSOR
CT6863
CAT II 600 Vrms, CAT III 300 Vrms, 200 A AC/
CAT III 1000 V, 200 A AC/DC rated current, DC rated current, DC to 100 kHz response, φ 20
DC to 500 kHz response, φ 24 mm (0.94 in) mm (0.79 in) core dia., 3 m (9.84 ft) cord length
core dia., 3 m (9.84 ft) cord length
UNIVERSAL CLAMP ON
CT 9277
AC/DC CURRENT SENSOR
CT6862
CAT II 600 Vrms, CAT III 300 Vrms, 20 A AC/DC
rated current, DC to 100 kHz response, φ 20 mm
(0.79 in) core dia., 3 m (9.84 ft) cord length
CAT III 1000 V, 50 A AC/DC rated current,
DC to 1 MHz response, φ 24 mm (0.94 in)
core dia., 3 m (9.84 ft) cord length
CLAMP ON SENSOR
9272-10
SENSOR UNIT 9555-10
10:1 PROBE 9665
Used for connecting the 9320/9321/MR9321
and the 9324 relay to the Memory HiCorder
with small logic terminal models
Recommended
Current measurement 1
Input modules Input cables are not supplied. Please purchase the
appropriate cable for the intended application.
Install by inserting into the main unit. Can be replaced by user. *The 8971 use
up to 4 with MR8740; not compatible with MR8741
Max. rated voltage to earth is same
as for input module, max. input
voltage 1 kV rms (up to 500 kHz),
1.5 m (4.92 ft) length
TEST LEAD L2200
100:1 PROBE 9666
Convert data, print and display
waveforms.
GRABBER CLIP 9243
DIFFERENTIAL PROBE
9322
For up to 2 kV DC or 1 kV AC.
Use with AC Adapter 9418-15
LAN COMMUNICATOR 9333
PC Software
High-Voltage measurement
Separate power supply required
*For powering the 9322, AC Adapter 9418-15 is required separately.
• For LAN communication with the
MR8740/8741, MR8847series,
8826
• For data collection and remote
control
iPad App for Memory
HiCorder HMR-Terminal
• Supports MR8740/8741
• Supports MEM data from
MR8847-01s
• (Exclusively for iPad) Free
download from App Store
AC ADAPTER 9418-15
100 to 240 V AC.
Also available: MR8847 MEMORY HiCORDER series
Cord has insulated BNC connectors
at both ends, signal output use, 1.6 m
(5.25 ft) length
Other options
Same specifications as the MR8741!
CONNECTION CORD L9217
Current measurement 3 Current measurement 4
WAVE PROCESSOR
9335
φ 5.0 mm (0.20 in) dia., cable
Attaches to the tip of the Cord
allowing for up to 600 V input.
1.8 m (5.91 ft) length, a detachable 9197, Red/ Black set, 196 mm
(7.72 in) length
large alligator clips are bundled
CAT III 600 Vrms, 20 A/200 A AC rated current,
1 Hz to 100 kHz response, φ 46 mm (1.81 in) core
dia., 3 m (9.84 ft) cord length
Red/ Black ×1, 70cm (2.30ft) length,
detachable large alligator clips or
needle tips are bundled, CAT IV
600V, CAT III 1000V
Max. rated voltage to earth is same
as for input module, max. input
voltage 5 kV peak (up to 1MHz),
1.5 m (4.92 ft) length
CONNECTION CORD L9197
Power supply for the Current
Sensor, used alone
Featuring a
built-in display
and printer
*For commercial power lines, 50/60Hz (separate power supply not required)
CLAMP ON PROBE
9018-50
CLAMP ON PROBE
9132-50
Good phase characteristics,
Input from 10 to 500 A, 40 Hz to 3 kHz
for 0.2 V AC output, BNC terminal
CLAMP ON AC/DC
SENSOR CT9691-90
Input from 20 to 1000 A, 40
Hz to 1 kHz for 0.2 V AC output, BNC
terminal
CLAMP ON AC/DC
SENSOR CT9692-90
0.1 V/f.s., Cord length 2 m (6.56 ft) 0.2 V/f.s., Cord length 2 m (6.56 ft) Output 0.2 V/f.s., Cord length 2 m
(6.56 ft)
CONNECTION CORD 9165
CONNECTION CORD L9217
Cord has metallic BNC connectors at
both ends, use at metallic terminal,
1.5 m (4.92 ft) length, Not CE marked
Cord has insulated BNC connectors
at both ends, signal output use, 1.6 m
(5.25 ft) length
CONVERSION ADAPTER 9199
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.
CLAMP ON AC/DC
SENSOR CT9693-90
DC to 10kHz (-3dB), 100A, Output DC to 20kHz (-3dB), 200A, Output DC to 15kHz (-3dB), 2000A,
Female banana terminals to BNC plug
(output), use to connect to BNC terminal
on Input Module
LAN CABLE 9642
Straight Ethernet cable, supplied
with straight to cross conversion
adapter, 5 m (16.41 ft) length
Cannot be used with the MR8990 DVM Unit.
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 INDIA PRIVATE LIMITED:
TEL +91-124-6590210 FAX +91-124-6460113
HEADQUARTERS:
E-mail: [email protected]
81 Koizumi, Ueda, Nagano, 386-1192, Japan
TEL +81-268-28-0562 FAX +81-268-28-0568 HIOKI SINGAPORE PTE. LTD.:
http://www.hioki.com / E-mail: [email protected] TEL +65-6634-7677 FAX +65-6634-7477
E-mail: [email protected]
HIOKI USA CORPORATION:
HIOKI KOREA CO., LTD.:
TEL +1-609-409-9109 FAX +1-609-409-9108 TEL +82-42-936-1281 FAX +82-42-936-1284
http://www.hiokiusa.com / E-mail: [email protected] E-mail: [email protected]
All information correct as of June 3, 2014. All specifications are subject to change without notice.
MR8740E4-46B
Printed in Japan
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