MR8875 Memory HiCORDER 1000V Direct Input Multi Channel Logger
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Specifications:
- Product Name: MEMORY HiCORDER MR8875
- Input Voltage: 1000 V Direct Input
- Channels: 16 analog channels to 60 thermocouple temperature
measurement channels - Sampling Speed: Up to 2 channels every 2 sec or up to 60
channels every 50 sec - Recording Capacity: Record 8 channels of data for 155 days or
60 channels of data for 20 days - Resolution: 16-bit resolution
Product Usage Instructions:
Multi-channel Logger Functionality:
The MR8875 offers multi-channel measurement capability with a
compact design for portability. Install input modules based on your
measurement needs, ranging from analog channels to thermocouple
temperature measurement channels.
Super-High-Speed Logging:
The device can sample all channels in as little as 2 seconds.
You can sample multiple channels at different intervals while
continuously writing data to a genuine Hioki SD memory card.
Long-Term Continuous Recording:
Real-time saving to the SD card allows for long-term continuous
recording. Record data at specified intervals for extended periods
using genuine Hioki SD memory cards.
User-Selectable Input Modules:
Select and install up to four input modules from a variety of
options. Mix and match modules for voltage, temperature, strain,
and CAN signal measurements at high resolution.
Applications:
- Industrial Robots: Ideal for measuring
voltage, temperature, strain, and sensor outputs in industrial
robotics applications. - R&D or Science Experiments: Suitable for
performance and durability testing, sensor evaluation, and X-Y
recording in research and development settings. - Construction Machinery, Agricultural Machinery, and
Automobiles: Withstand harsh environments and measure
voltage, temperature, strain, and CAN signals for development
purposes. - Inverter and Motor Testing: Perform primary-
and secondary-side measurements of power supplies, record
waveforms, and test EV batteries.
FAQ:
Q: Can the MR8875 measure high-voltage inputs?
A: Yes, with the MR8905 Analog Unit, the MR8875 can measure
voltages up to 1000 V DC directly.
Q: What is the recording capacity of the MR8875?
A: The device can record 8 channels of data for 155 days or 60
channels of data for 20 days at an interval of 100 msec.
Q: Can I mix and match input modules?
A: Yes, you can select and install up to four input modules from
a range of options to suit your measurement needs.
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MEMORY HiCORDER MR8875
1000 V Direct Input Multi-channel Logger
As a Multi-channel Logger
The MR8875 delivers multi-channel measurement capability in a compact, A4-size footprint that ensures portability. Depending on which input modules are installed, measurement capabilities range from 16 analog channels to 60 thermocouple temperature measurement channels.
As a Super-High-Speed Logger
The MR8875 can simultaneously sample all channels in as little as 2 sec. Sample up to 2 channels every 2 sec or up to 60 channels every 50 sec while writing data continuously to an SD memory card in real time. * Operation is guaranteed only with a genuine Hioki SD memory cards.
As a Long-Term Continuous Recording Logger
Real-time saving to SD card At an interval of 100 msec, the MR8875 can record 8 channels of data for 155 days or 60 channels of data for 20 days. * Operation is guaranteed only with a genuine Hioki SD memory cards.
New 1000 V RMS Measurement Module
Select and install four input modules from a large selection. The MR8875 lets you mix and match modules to measure voltage, temperature, strain, and CAN signals or measure sensor output signals at a high, 16-bit resolution.
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User-selectable Input Modules for More Applications! Compact Solution for Multi-channel Measurement
Industrial Robots
Voltage Temperature Control Signals Strain
Sensor outputs
Temperature variations on movable parts
The plug-in module-based architecture means you can mix and record a variety of signals across multiple channels – ideal for verifying the operation of multi-axis robots.
Strain
Motor current
Control signal (logic probe)
Example of module combinations
Analog Unit MR8901
× 2
Voltage/Temp Unit MR8902 × 1
Strain Unit MR8903
× 1
R&D or Science Experiments
Voltage
Temperature
With its multi-channel, long-term recording capabilities, the MR8875 is ideally suited for use in development applications such as performance and durability testing.
– Record sensor output. – Evaluate sensors and other devices. – Use as an X-Y recorder (flatbed).
Example of module combinations
Analog Unit MR8901
× 2
Voltage/Temp Unit MR8902 × 2
Development of Construction Machinery, Agricultural Machinery, and Automobiles
Voltage Temperature Strain CAN
ECU ECU
CAN
Enhanced environmental temperature and vibration resistance enable the MR8875 to withstand harsh measurement environments.
Example of module combinations
Analog Unit MR8901
× 1
Voltage/Temp Unit MR8902
× 1
Strain Unit MR8903
× 1
CAN Unit MR8904
× 1
NON-CONTACT CAN SENSOR SP7001-95* × 1
*CAN FD is not supported when using with the MR8875 and MR8904.
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Applications
High-Speed Data Recorder
MR8875
Inverter and Motor Testing
High-voltage input (MR8905)
Primary- and secondary-side measurement of UPS power supply and commercial power supply transformers Record inverter primary- and secondary-side waveforms
Clamp-On Sensor
Torque Encoder sensor
Battery
Inverter
Example of module combinations
Analog Unit MR8905 × 2
(up to 4 high-voltage channels)
Analog Unit MR8901 × 2 (up to 4 low-voltage channels and 4 current sensor output channels)
Motor Sensor Unit
Pulse input
Torque meter
·Torque ·Rotation
Load
Testing of EV batteries
1000 V DC (CAT II)
Measure ECU and EV inverter output waveforms
With the MR8905 Analog Unit, the MR8875 can measure the voltage of individual battery cells– a process that requires high precision and high resolution–at 16-bit resolution (1/1250 of the range). The instrument can measure signals of up to 1000 V DC directly.
BATTERY
· Battery evaluation
Example of control signals and charge/discharge time measurement
Testing of Power Equipment Characteristics testing of power
equipment
600 V AC (CAT III)
(load rejection and circuit breaker testing)
· Load rejection testing
Analyze the correlations among factors such as the generator voltage before and after circuit-breaker operation, degree of variability in RPM, governor servo operating status, and pressure regulator operation timing.
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1 Real-Time Saving
to an SD Card in High Resolution
Collect physical signals at a 500 kS/s sampling rate with a high resolution of 25,000 points f.s.
Input
A/D conversion
Isolation
25,000 points
The same working principle as that of a digital oscilloscope is used to record data to the large-capacity internal memory at high speed. The sampling rate is 500 kS/s (2 s period) on all channels simultaneously. Sensor signal waveforms are recorded and represented faithfully. Furthermore, a 16-bit A/ D resolution ensures thas even subtle changes in the sensor signals are not missed.
Ultra-high-speed SD data recording is a vast improvement over legacy products
The MR8875 takes advantage of revolutionary SD card technologies to offer faster real-time saving to a memory card from as fast as 2 s intervals (operation is guaranteed only with a genuine HIOKI SD memory card). When the recording period (sampling rate) is 50 s or less, data for all 60 channels can be recorded continuously over a long period.
Sampling period as short as 2 sec (sampling speed of 500 kS/s)
Write to internal memory
n Maximum time to record to the internal storage memory (non-exhaustive)
* Since memory is stored in each module, this chart is a comparison of storing on one unit. * Built-in logic, and pulses P1 and P2 input each use the storage capacity equivalent to one analog channel.
No. of channels to be used
1 ch
3 ch to 4 ch
9 ch to 16 ch
Time axis (non-exhaustive)
200 s/div
Period
2 s
80,000 div 16 s
20,000 div 4 s
5,000 div 1 s
1 ms/div 10 s
1 min 20 s
20 s
5 s
10 ms/div 100 s
13 min 20 s
3 min 20 s
50 s
100 ms/div 1 ms 2 h 13 min 20 s
33 min 20 s
8 min 20 s
1 s/div 10 ms 22 h 13 min 20 s 5 h 33 min 20 s 1 h 23 min 20 s
10 s/div 100 ms 9 d 06 h 13 min 20 s 2 d 07 h 33 min 20 s 13 h 53 min 20 s
100 s/div 1.0 s 92 d 14 h 13 min 20 s 23 d 03 h 33 min 20 s 5 d 18 h 53 min 20 s
5 min/div 3.0 s 277 d 18 h 40 min 69 d 10 h 40 min 17 d 08 h 40 min
Input
A/D conversion
Isolation
25,000 points
n Maximum recordable time to a 2 GB SD memory card
* Since the header information is included, actually recordable measurement data is approximately 90% of the time shown in the table below. The upper limit is 1,000 days but operation is guaranteed for 1 year.
* The recording interval is limited depending on the number of measuring channels. * Built-in logic, pulses P1 and P2 input each use the storage capacity equivalent to one
analog channel.
Sampling period as short as 2 sec (sampling rate of 500 kS/sec)
Write to SD memory card in real-time
Time axis
Recording intervals
200 s/div
2 s
500 s/div
5 s
1 ms/div 10 s
2 ms/div 20 s
5 ms/div 50 s
10 ms/div 100 s
20 ms/div 200 s
50 ms/div 500 s
100 ms/div
1 ms
200 ms/div
2 ms
500 ms/div
5 ms
1 s/div 10 ms
2 s/div 20 ms
5 s/div 50 ms
10 s/div 100 ms
30 s/div 300 ms
50 s/div 500 ms
60 s/div 600 ms
100 s/div
1.0 s
2 min/div
1.2 s
5 min/div
3.0 s
1 ch
35 min 47 s 1 h 29 min 28 s 2 h 58 min 57 s 5 h 57 min 54 s 14 h 54 min 47 s 1 d 05 h 49 min 34 s 2 d 11 h 39 min 08 s 6 d 05 h 07 min 50 s 12 d 10 h 15 min 41 s 24 d 20 h 31 min 23 s 62 d 03 h 18 min 29 s 124 d 06 h 36 min 58 s 248 d 13 h 13 min 56 s 621 d 09 h 04 min 51 s Upper limit 1000 days Upper limit 1000 days Upper limit 1000 days Upper limit 1000 days Upper limit 1000 days Upper limit 1000 days Upper limit 1000 days
2 ch
17 min 53 s 44 min 44 s 1 h 29 min 28 s 2 h 58 min 57 s 7 h 27 min 23 s 14 h 54 min 47 s 1 d 05 h 49 min 34 s 3 d 02 h 33 min 55 s 6 d 05 h 07 min 50 s 12 d 10 h 15 min 41 s 31 d 01 h 39 min 14 s 62 d 03 h 18 min 29 s 124 d 06 h 36 min 58 s 310 d 16 h 32 min 25 s 621 d 09 h 04 min 51 s Upper limit 1000 days Upper limit 1000 days Upper limit 1000 days Upper limit 1000 days Upper limit 1000 days Upper limit 1000 days
4 ch
N/A 22 min 22 s 44 min 44 s 1 h 29 min 28 s 3 h 43 min 41 s 7 h 27 min 23 s 14 h 54 min 47 s 1 d 13 h 16 min 57 s 3 d 02 h 33 min 55 s 6 d 05 h 07 min 50 s 15 d 12 h 39 min 14 s 31 d 01 h 39 min 14 s 62 d 03 h 18 min 29 s 155 d 08 h 16 min 12 s 310 d 16 h 32 min 25 s 932 d 01 h 37 min 16 s Upper limit 1000 days Upper limit 1000 days Upper limit 1000 days Upper limit 1000 days Upper limit 1000 days
8 ch
N/A 11 min 11 s 22 min 22 s 44 min 44 s 1 h 51 min 50 s 3 h 43 min 41 s 7 h 27 min 23 s 18 h 38 min 28 s 1 d 13 h 16 min 57 s 3 d 02 h 33 min 55 s 7 d 18 h 24 min 48 s 15 d 12 h 49 min 37 s 31 d 01 h 39 min 14 s 77 d 16 h 08 min 06 s 155 d 08 h 16 min 12 s 466 d 00 h 48 min 38 s 776 d 17 h 21 min 04 s 932 d 01 h 37 min 17 s Upper limit 1000 days Upper limit 1000 days Upper limit 1000 days
16 ch
N/A N/A 11 min 11 s 22 min 22 s 55 min 55 s 1 h 51 min 50 s 3 h 43 min 41 s 9 h 19 min 14 s 18 h 38 min 28 s 1 d 13 h 16 min 57 s 3 d 21 h 12 min 24 s 7 d 18 h 24 min 48 s 15 d 12 h 49 min 37 s 38 d 20 h 04 min 03 s 77 d 16 h 08 min 06 s 233 d 00 h 24 min 19 s 388 d 08 h 40 min 32 s 466 d 00 h 48 min 38 s 776 d 17 h 21 min 04 s 932 d 01 h 07 min 17 s Upper limit 1000 days
30 ch
N/A N/A N/A 11 min 55 s 29 min 49 s 59 min 39 s 1 h 59 min 18 s 4 h 58 min 15 s 9 h 56 min 31 s 19 h 53 min 2 s 2 d 01 h 42 min 36 s 4 d 03 h 25 min 13 s 8 d 06 h 50 min 27 s 20 d 17 h 06 min 09 s 41 d 10 h 12 min 19 s 124 d 06 h 36 min 58 s 207 d 03 h 01 min 37 s 248 d 13 h 13 min 56 s 414 d 06 h 03 min 14 s 497 d 02 h 27 min 53 s Upper limit 1000 days
60 ch
N/A N/A N/A N/A 14 min 54 s 29 min 49 s 59 min 39 s 2 h 29 min 07 s 4 h 58 min 15 s 9 h 56 min 31 s 1 d 00 h 51 min 18 s 2 d 01 h 42 min 36 s 4 d 03 h 42 min 36 s 10 d 08 h 33 min 04 s 20 d 17 h 06 min 09 s 62 d 03 h 18 min 29 s 103 d 13 h 30 min 48 s 124 d 06 h 36 min 48 s 207 d 03 h 01 min 37 s 248 d 13 h 13 min 56 s 621 d 09 h 04 min 51 s
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2 Multi-channel
Mixed Measurement of Various Signals
Install input modules according to your specific needs
The MR8875 uses a plugin unit-type input amp setup that allows users to select the input unit that’s appropriate for their measurement objective. In addition, it’s easy to change input units after purchase.
The Analog Unit MR8905, which can accommodate high voltages and allows direct input of up to 1,000 V (CAT II) or 600 V (CAT III), is available for high-voltage applications. In addition to instantaneous waveforms, measurement of RMS level waveforms is also supported.
Even the standard input unit supports 1,000 V (CAT III) measurement if used with the newly developed Differential Probe P9000 series of small probes.
For high-sensitivity measurement, use the Strain Unit MR8903, which features 1 mV f.s. operation (for a maximum resolution of 0.04 V). Measurement of minuscule sensor output is also supported.
MR8905 The Analog Unit MR8905 does not include input cables. Separate purchase of the optional Connection Cable Set L4940 (× 2) and Alligator Clip Set L4935 (× 2), which consists of clips that fit onto the ends of the cables, is required.
MR8901 P9000-01 or P9000-02
The Differential Probe P9000 can be used with the standard Analog Unit MR8901 to enable high-voltage, 1,000 V (CAT III) measurement. The P9000-02 further enables RMS level measurement of AC power lines.
Accepts direct pulse input and standard logic probe terminals
The MR8875 offers two standard equipped pulse input channels that allow for inputting no-voltage a- and b-contacts, open collectors, or voltage. Signals transmitted as pulses, such as those of rotation speed and flow rate, can be measured (counted). Use a logic probe for the on/off (logic) signal waveforms such as relay and PLC waveforms. Two types of logic probes are available depending on the signal types (see p. 15).
n Support for a wide variety of measurement items
(Model MR8875 standard equipped with pulse input capability. Logic input requires an optional logic probe.)
Measurement target
Rotation speed
Input unit
Standard equipped with pulse input
Measurement range 5000 (r/s) f.s.
Resolution
Sampling
Frequency characteristics
1 (r/s)
10 msec (100 S/s)
N/A
Pulse Standard equipped totalization with pulse input
65,535 to 3,276,750,000 counts f.s.
1 count
N/A
N/A
Depends on logic probe in use
Relay contacts, voltage on/off
Logic Probe 9320-01
Max. input 50 V Threshold +1.4 V, +2.5 V, +4.0 V,
N/A
2 sec 500 nsec or (500 kS/s) lower response
or non-voltage contact (short/open)
AC/DC voltage on/off
Logic Probe MR9321-01
Depends on logic probe in use detects presence of AC/DC voltages of up to 250 V.
N/A
2 sec 3 msec or (500 kS/s) lower response
Note: Power line frequency, duty ratio and pulse width measurements are not supported.
· Example of recording the instantaneous waveform and RMS level waveform during a momentary outage of an AC power supply (using the MR8905)
· Multi-channel timing measurement using logic waveform measurement
n Pulse input terminal
Take advantage of the frequency dividing function, settable from 1 to 50,000 counts, to take direct readings from an encoder that outputs multi-point pulses according to the rotation speed.
Two line pulse inputs (common GND)
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3 Touch Screen
for Intuitive Operation
Touch screen interface improves operating efficiency
Buttons on the MR8875 are kept to a minimum by utilizing touch screen technology. The high-definition 8.4-inch high-brightness TFT color LCD is the interface of choice for improving productivity by offering a more intuitive experience than traditional input methods.
Touch to scroll back or scale the waveform
Display earlier waveforms during recording without stopping measurement by simply touching the scroll icons on the screen. You can also scale the waveform amplitude by just swiping through the waveform up (to zoom in) or down (to zoom out).
Advanced cursor read function for multichannel analysis
Six cursors A, B, C, D, E, and F are available, compared with the conventional A- and B-cursors. Use the cursors to measure and display the following: · A, B, C, and D: Electric potential and time from the trigger · E and F: Electric potential · A-B and C-D cursors: Time difference and potential difference · E-F cursors: Electric potential
Split screen, sheet display, event mark input, and jump functions-indispensable for efficient analysis
Split screen and sheet display functions are provided to support multiple channels. Individual display formats can be selected and an application can be assigned to each sheet for analysis, increasing productivity. H For long-term recordings, tag important points with event markers. Up to 1000 markers can be placed so that you can quickly jump to them later for detailed analysis.
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4 Computer Analysis
via LAN, SD, and USB memory interfaces
LAN-compatible Web/FTP server function and waveform/CSV conversion using the included software “Wv”
Take advantage of the built-in 100BASE-TX LAN interface to network with a PC: WEB server: Use the Web Server function to view waveforms and remotely control the MR8875 with your PC’s web browser
FTP server: Use the FTP server function to copy the data stored in memory (SD card, USB memory, or internal storage memory) to the PC. You can then view binary waveform data acquired with the MR8875 on a PC, or convert data to CSV using the free WaveViewer (Wv) application for further analysis in Excel. Download the latest version of WaveViewer from the HIOKI website at www.hioki.com.
n Remotely control the MR8875 using the Web server function
Use a typical web browser to see the screen of the MR8875 on your PC with no other special software required. Make settings, acquire data, and monitor the screen with ease.
Note: Waveform data cannot be acquired from the internal memory during measurement.
n Transfer data using FTP
After measurement is finished, data is transferred automatically to the FTP server that is running on the PC. Data can also be transferred at you desired timing.
Wv screen example Excel spreadsheet example
n Download data using FTP
Measurement data in files on recording media and in the internal memory can be acquired from a PC.
Note: Waveform data cannot be acquired from the internal memory during measurement.
n Attach data to E-mail
After measurement is finished, you can automatically send the captured data as an e-mail attachment. Data can also be transferred at you desired timing.
Save data to the USB memory or SD card
Convenient USB memory*1 or SD memory cards*1 can be used to
copy data stored in the internal storage memory to the PC. Data
stored in the MR8875’s SD card can also be downloaded to the PC using a USB cable.*2 *1 Use only HIOKI SD memory cards and USB memory stick, which are manu-
factured to strict industrial standards, for long-term storage of important data. Data cannot be saved in real-time to a USB memory. * 2 Only data stored onto the HIOKI SD memory card can be downloaded onto a PC via a USB cable.
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5 Powerful Data Analysis Capabilities
FFT Analysis Function
Simultaneously measure four phenomena
The MR8875’s FFT analysis function can simultaneously analyze four phenomena with a single measurement. By performing FFT analysis of different signal inputs from channels 1 through 4, it is possible to analyze the frequency components of each channel occurring at the same time. For example, you can simultaneously view the linear spectrum, RMS spectrum, power spectrum, and phase spectrum for a signal input to channel 1.
Analysis functionality for a variety of measurement scenarios
The MR8875 features calculation functions that are often used during field measurements. The linear spectrum is used in analysis that focuses on waveform amplitude values, while the power spectrum is used in analysis that focuses on energy, for example noise and vibration measurement. You can select the calculation function that best suits your application–for example, use a transfer function for measurement that identifies internal systems based on I/O characteristics.
Peak value display function (marker display)
The peak value display function can be used to search for maximum and local maximum values and then display them. Characteristic values can be easily displayed even without using a cursor. Since the MR8875 stores up to 200 frames (200 calculation results) of data, it will automatically search for the peak value again if a different frame is selected.
Running the spectrum display function
The MR8875’s running spectrum display function can be used to continuously display spectra that change over time. Up to 200 frames* of the most recent calculation results can be stored. Although Hioki’s MR8847 Series only supports running the spectrum display for certain types of calculations, the MR8875 can generate this display with all FFT calculation functions. Additionally, if the selected frame is changed, the cursor value can also be loaded. * Frame data is stored in the instrument’s internal memory, regard-
less of whether the running spectrum display is used.
The MR8875 can also freeze the spectrum display on its screen during measurement. This function allows data to be observed without the inclusion of unneeded information on the screen or in the data. All calculation results can be output as CSV data, which can be loaded into a spreadsheet application such as Microsoft Excel and used to create a three-dimensional graph.
Example of data displayed with Microsoft Excel
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Extensive window functions
The MR8875 provides a total of seven window functions, including rectangular and Hanning variants. The rectangular function is used for analysis that focuses on spectrum amplitude values, while the Hanning function is used for analysis that focuses on the degree of spectral separation of frequency components. Additionally, by using an exponential window in impact measurement utilizing an impulse hammer, the instrument enables more precise analysis by limiting unneeded noise components on the time axis.
Continuous calculation function
When analyzing a signal that changes over time, the number of FFT calculation points becomes a limitation, preventing the waveform
from being analyzed in all time domains. Furthermore, using too many FFT points prevents the desired results from being obtained
because the spectrum is averaged. The MR8875 resolves these problems with its continuous calculation function.
Number of skips
For data covering extended periods of time, calculation points can be shifted by a number of skip points* at a uni-
Time waveform
form interval. Moreover, calculations for up to 200 frames
can be accomplished with a single operation. Calculation results for different time periods can be reviewed by changing the calculation frame, regardless of whether you’re using the running spectrum display or a singlescreen display.
FFT calculation results
Frame 2
Frame 1
Illustration of continuous calculation
Frame 200
* The number of skip points can be set from 100 to 10,000.
Overlay display function
The MR8875’s overlay display function can be used to observe variations in waveforms captured using continuous measurement over time. Although previous Hioki models have not been able to overlay FFT calculations, the MR8875 offers this capability, improving the visibility of analysis.
Visually appealing screen displays
The MR8875’s display can be switched according to the application at hand. For example, its single-screen display can be used when focusing on the correlation between channels, while its four-screen display can be used to isolate complex spectra for viewing. Additionally, time and spectrum waveforms can be displayed above and below one another when focusing on correlation with a captured time waveform.
Principle FFT calculation functions
Calculation points
1,000 2,000 5,000 10,000
Window functions
Rectangular window Hanning Hamming Blackman Blackman-Harris Flat top Exponential
Display
Amplitude Real part Imaginary part Peak value display: local maximum, maximum Running spectrum (spectrogram): 200 lines Screen segmenting: 1-/2-/4-screen, Waveform + FFT
Single-screen display
Simultaneous display of a time-axis waveform and FFT calculation results
Averaging Analysis functions
Other
Frequency (simple) Frequency (exponential) Frequency (peak-hold)
Linear spectrum RMS spectrum Power spectrum Transfer function Cross power spectrum Coherence function Phase spectrum
Frequency range: 1.33 mHz to 400 kHz Max. number of simultaneous functions: 4 Total harmonic distortion (THD) analysis Overall value Window function energy correction dB scaling Continuous calculation Calculation precision: 32-bit floating point, IEEE single-precision
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Waveform Calculation Function
Real-time inter-channel calculation
The MR8875 features a new real-time inter-channel calculation* function that allows you to observe and record results for up to two calculations on the same input module while measurement continues.
* Between channels on the same input module only (supported input modules: MR8901/8902/8903)
* Calculations between different user-set phenomena on the MR8902/8903 (voltage and temperature, etc.) are not supported.
Waveform-dimension calculations
The previous MR8875 firmware version only supported calculations that generated values such as averages and RMS values, but the new version can process for up to eight calculations simultaneously, including arithmetic operations as well as differential-integral and other waveform-dimension calculations.
Digital filter calculations
CH 1 waveform
CH 2 waveform
Real-time waveform calculation result
Results of measuring a distorted waveform containing noise
Results of a calculation-based simulation of a waveform from which highfrequency distortion has been rejected by passing it through a low-pass filter.
The MR8875 offers new digital filter calculations* as part of its selection of waveform processing calculations, allowing the
LPF waveform
LPF spectrum
necessary bandwidth portion of a waveform containing noise
to be calculated and the resulting waveform displayed.
HPF waveform
HPF spectrum
* Finite impulse response (FIR) and infinite impulse response (IIR) digital filters are offered.
Both of the digital filters can be configured with an LPF (passing only the low-frequency component), HPF (passing only the high-frequency component), BPF (passing only a
BPF waveform
BPF spectrum
frequency bandwidth of a certain width), or BEF (rejecting only a frequency bandwidth
of a certain width).
* Although FIR calculation processing is time-consuming, it can yield waveforms with no
phase distortion. By contrast, IIR calculation yields results at a relatively faster calculation speed but is prone to phase distortion. Each filter’s cutoff frequency is user-specified.
6 CAN Signal Input for Vehicle Testing
Synchronized mixed recording of CAN data and real data such as voltage, temperature, or distortion signals
ECU
Acquire information such as engine RPM and vehicle speed
CAN input
Measure temperature and vibration in the vehicle
ECU
Analog input
You can acquire CAN data and analog data in a non-contact method by pairing the SP7001-95 with the MR8875 and MR8904*.
*CAN FD not supported
n Graph CAN signal information and analog data simultaneously
Captured CAN data Measured analog data
Display of waveforms on same time axis
The MR8875 displays an analog waveform that is converted from a CAN transmission in real time. On the waveform, analog data such as voltage, temperature, strain, and information collected from the CAN bus such as vehicle speed and RPM can be shown simultaneously.
Vector’s CAN database can be loaded using supplied software
Industry standard CANdb® database files can be loaded onto the supplied setting software to identify the CAN channel signals. CAN messages can be viewed using the customer-specified message and signal names, as well as scaled engineering units. Since parameters such as signal data type, start bit, length, and byte sequence are all pre-defined in CANdb files, users can concentrate on their measurement tasks without needing to define signals.
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CAN editor (bundled software)
n Basic configuration of Non-Contact CAN Sensor
This system requires three components: the signal probe, sensor, and CAN interface. You can either order the set models or order the system components individually.
*CAN FD is not supported when using with the MR8875 and MR8904.
Signal probe
Sensor
CAN Interface
SIGNAL PROBE SP9250
SIGNAL PROBE SP9200
Set model
NON-CONTACT CAN SENSOR SP7001-95
set content SIGNAL PROBE SP9250 NON-CONTACT CAN SENSOR SP7001 CAN INTERFACE SP7150 (Includes L9510, GND cable)
NON-CONTACT CAN SENSOR SP7001/SP7002
CAN INTERFACE SP7150
Power supply: USB bus power or Z1013
CAN INTERFACE SP7100
Power supply: 10 to 30 V DC or Z1008
NON-CONTACT CAN SENSOR SP7001-90
set content SIGNAL PROBE SP9200 NON-CONTACT CAN SENSOR SP7001 CAN INTERFACE SP7100 (Includes L9500, GND cable)
NON-CONTACT CAN SENSOR SP7002-90
set content SIGNAL PROBE SP9200 NON-CONTACT CAN SENSOR SP7002 CAN INTERFACE SP7100 (Includes L9500, GND cable)
Withstand extreme environmental temperatures, vibrations, and data loss threats due to power outages
In road tests, extreme environmental conditions associated with temperature and vibration are traditionally hard on measuring instruments. The MR8875 has the wide operating temperature range of -10°C to 50°C (14°F to 122°F) and is compliant with the stringent Japanese standard for vibration resistance performance used in automotive testing (JIS DI1601). It is designed to withstand the harsh conditions of in-vehicle measurement. In the event of a power outage while data is being recorded, the power supply is maintained using a built-in large-capacity capacitor until data is completely written to the SD or USB memory. Risk of data loss or damage to the file system is minimized, and after power is restored, measurement can be restarted automatically.
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Basic specifications (Accuracy guaranteed for 1 year)
Measurement function High-speed recording
Up to 4 slots, user installable in any combination by plugging into
the main unit
[MR8901 × 4]: 16 analog channels + standard 8 logic and 2 pulse channels [MR8905 × 4]: 8 analog channels + standard 8 logic and 2 pulse channelsNumber of input
[MR8902 × 4]: 60 analog channels + standard 8 logic and 2 pulse channelsmodules that can be [MR8903 × 4]: 16 analog channels + standard 8 logic and 2 pulse channels
installed
[MR8904 × 4]: 8 CAN ports (analyzed 60 analog + analyzed 64 logic ch) +standard 8 logic and 2 pulse channels
* For analog units, channels are isolated from each other and from the MR8875’s
GND. For CAN unit ports or standard logic terminals or standard pulse termi-
nals, all channels have common GND.
Max. sampling rate
MR8901/MR8905: 500 kS/s (2 s period, all channels simultaneous) MR8902: 10 msec (channel scanning)
MR8903: 200 kS/s (5 s period, all channels simultaneous) External sampling: 200 kS/s (5 s period)
Storage memory capacity
Total 32 Mega-words (memory expansion: none, 8 Mega-words/module)
* 1 word = 2 bytes, therefore 32 Mega-words = 64 Mega-bytes. * Memory can be allocated depending on the number of channels used on each input module
External storage Backup functions (at 23°C/73°F)
Interfaces
SD card slot × 1, USB memory stick (USB 2.0 standard)
* FAT-16 or FAT-32 format on SD or USB
Clock and parameter setting backup: at least 10 years Waveform backup function: none
LAN × 1: 100BASE-TX (DHCP, DNS supported, FTP server/client, web server, send E-mail, command control)
USB series mini-B receptacle × 1 (setting and measurement by
communications commands, transfer data from SD card to a PC)
USB series mini-A receptacle × 2 (USB memory stick, USB mouse,
USB keyboard)
External control connectors
External trigger input, trigger output, external sampling input, pulse input × 2, external input × 3, external output × 2
External power supply
Three lines, +5 V, 2 A total output, Common GND with the body GND
* Differential probe 9322 can not be used
Operating temperature and humidity (no condensation)
Temperature: -10°C to 40°C (14°F to 104°F), 80% rh or less 40°C to 45°C (104°F to 113°F), 60% rh or less 45°C to 50°C (113°F to 122°F), 50% rh or less
When powered by the battery pack: 0°C to 40°C (32°F to 104°F), 80% rh or less When charging the battery pack: 10°C to 40°C (50°F to 104°F), 80% rh or less Storage: -20°C to 40°C (-4°F to 104°F), 80% rh or less
40°C to 45°C (104°F to 113°F), 60% rh or less 45°C to 50°C (113°F to 122°F), 50% rh or less Battery pack storage: -20°C to 40°C (-4°F to 104°F), 80% rh or less
Applicable standards
Safety: EN61010-1, EMC: EN61326, EN61000-3-2, EN61000-3-3
Compliat standards
Anti-vibration: JIS D1601: 1995 5.3 (1) (corresponds to Class 1: passenger car, condition: class A)
Power supply
AC adapter Z1002: 100 to 240 V AC (50/60 Hz) Battery Pack Z1003: 7.2 V DC Continuous operation time: one hour with back light on (AC adapter has priority when used in combination with battery pack)
DC power supply: 10 to 28 V DC (please contact your Hioki distributor for
connection cord)
Charging function Recharging time: approx. 3 hours (using the AC adapter and main unit
(at 23°C/73°F)
to recharge the Battery Pack Z1003)
Power consumption
When using the AC adapter Z1002, or external DC power supply: 56 VA When using the battery pack: 36 VA
Dimensions and weight
Supplied accessories
Display
Approx. 298W × 224H × 84D mm (11.73W × 8.82H × 3.31D in.), 2.4 kg
(84.7 oz.), (excluding input modules and battery pack)
Example configurations: 2.75 kg (97.0 oz., excluding input modules and including battery pack), 3.47 kg (122.4 oz., including MR8901 × 4 and battery pack)
Instruction Manual × 1, Measurement Guide × 1, AC Adapter Z1002 × 1, Protection Sheet × 1, USB Cable × 1, Shoulder Strap × 1, Application Disk (Wave viewer Wv, communication commands table, CAN Editor) × 1
Display type Screen settings
8.4 inch SVGA-TFT color LCD (800 × 600 dots, touch screen), (time axis 25
div × voltage axis 20 div, X-Y waveform 20 div × 20 div)
Waveform split screen (1, 2, or 4), X-Y 1 & X-Y 2 screens, time axis + X-Y waveform screen, sheet display (sheet “ALL”, sheet 1 to 4
selectable)
·Waveform display
·Simultaneous waveform and gauge display
Screen display types
·Simultaneous waveform, gauge, and settings display ·Simultaneous waveform and numerical calculation results display
·Waveform and A/B, C/D, E/F cursor values displayed at the same time
·Simultaneous waveform and instantaneous value display
Waveform monitor See waveform without recording (setting screen, waiting for trigger screen)
Real-time value monitor
Values for all channels can be monitored during measurement
(instantaneous value, average value, P-P value, max. value, min. value)
Display functions
·Waveform scroll (scroll backwards through the display trend graph to
view past waveforms even while recording)
· Event marker input and jump functions (up to 1000 markers) ·Waveform inversion (positive/negative) ·Cursor readout (use A/B/C/D/E/F/cursors) ·Vernier display (fine amplitude adjustment)
·Waveform zoom (splits the screen vertically; supports waveform
magnification and overall display)
·Waveform overlay (select from off, overlay for each measurement, and
overlay at user-selected timing)
· Waveform history (up to 16 past data sets can be selected and displayed.)
Measurement function (High-speed recording)
Time axis
200 s/div, 500 s/div, 1 ms/div to 500 ms/div, 1 s/div to 5 min/div
21 ranges, external sampling (max. 200 kS/s) Recording intervals with real-time save on: 2 s/S (up to 2 channels), 5 s/S (up to 8 channels), 10 s/S (up to 16 channels), 20 s/S (up to 30 channels), 50 s/S (up to 64 channels), 100 s/S (no limit on number of
channels in use)
Accuracy of time axis ±0.0005%
Time axis resolution 100 points/div
Recording length 25 to 20,000 div *1 *2, 50,000 div *3, or user-configurable from 5 (with MR8901 × 4, logic to 80,000 div *3 in 1 div increments and pulse inputs off) *1 4 ch/module, *2 2 ch/module, *3 1 ch/module
Waveform expansion/ compression
Time axis: × 10 to × 2 or × 1, × 1/2 to × 1/50,000 Voltage axis: × 100 to × 2 or × 1, × 1/2 to × 1/10 Upper and lower limit settings, or position setting
Pre-trigger
Trigger timing at start: pre-trigger data can be recorded for an interval set in steps ranging from 0% to 100% of the recording length
Post-trigger
Trigger timing at stop: post-trigger data can be recorded for an interval set in steps ranging from 0% to 40% of the recording length
Real-time data save
On/off is selectable (exclusive real-time save or automatic save) Function: waveforms are saved as binary data to the SD memory card at each interval. (Note: it cannot save in real-time to a USB memory.
Use only SD memory cards sold by Hioki.)
Endless loop saving: a new file overwrites the oldest file when the SD memory card capacity runs short. (Note: delete files only in saved
repeat trigger mode.)
Normal saving: saving stops when the SD memory card capacity is full
Auto data save
Select from “off”, waveform data (binary or CSV), numerical calculation results, and image data (compressed BMP or PNG) Function: data are saved to either an SD memory card or USB memory stick at once after the specified recording length is acquired. Endless loop saving: a new file overwrites the oldest file when the SD memory card or USB memory capacity runs short Normal saving: saving stops when the SD memory card or USB memory capacity is full
Data protection
In the event of a power outage during saving to storage media, the file is closed and then the power is shut down.
(Note: this function is enabled 15 minutes after the power is turned on.)
Loading data from media
·Binary data stored in the SD memory card or the USB memory stick can be recalled by the MR8875 internal storage memory ·Waveform data saved in real time to the SD memory card can be loaded starting at a specified position up to the maximum storage memory capacity.
Memory segmentation N/A
Trigger functions
Mode
Single, repeat
Timing
Start, stop, and start & stop (separate trigger conditions can be set to start
and stop)
Trigger sources
·Trigger source selectable for each channel. (Free-running when all
trigger sources are off)
·Analog input: select up to 4 channels for each module ·Inter-channel calculation results: W1-1 to W4-2 ·Logic input: LA1 to LA4, LB1 to LB2 (4 channels x 2 probes), CAN L1 to 16 (for each MR8904 CAN Unit). Pattern triggers can be configured for each of the above trigger sources.
·Pulse input: P1, P2 (2 channels)
·External input: input signal to external trigger terminal ·Logic AND/OR of all sources ·Forced trigger execution: priority over any other trigger source ·Interval trigger: trigger is activated at recording start, and again at each set interval
Trigger types (analog, pulse)
· Level: a trigger is applied when the set voltage rises or falls. · Window: sets the upper and lower limits of trigger level
Trigger types (logic)
Trigger types (external input)
· Logic pattern: settable to 1, 0, or × for each logic probes · The trigger condition (AND/OR) can be set between logic input channels in each probe.
·Rise or fall is selectable (max. allowable input voltage 10 V DC) Rising: a trigger is applied when rising from “Low” (0 to 0.8 V) to “High” (2.5 to 10 V) Falling: a trigger is applied when falling from “High” (2.5 to 10 V) to “Low” (0 to 0.8 V) or to a terminal short. ·External trigger filter and response pulse width: When external filter is off: high period is 1 ms or greater, and low period 2 s or less When the external filter is on: high period is 2.5 ms or greater, and low period is 2.5 ms or less
Trigger level resolution
· Analog: 0.1% f.s. (f.s. = 20 div) (Note: with the CAN Unit MR8904,
resolution fluctuates according to the bit length defined by the CAN.)
·Pulse integration: 0.002% f.s., ·Pulse rotation count: 0.02% f.s. (f.s. = 20 div)
Trigger filter Trigger output
Set by number of samples (10 to 1000 points, or off)
·Open drain output (with 5 voltage output, active low) ·Output voltage: 4.0 to 5.0 V (high level), 0 to 0.5 V (low level) ·Output pulse width: selectable level or pulse Level: sampling period × (number of data after the trigger minus one) or longer (2 s or longer) Pulse: 2 ms ±10%
13
Calculation functions
· Up to 2 calculations per module can be performed simultane-
ously.
· Calculation possible modules: Analog Unit MR8901, Voltage/
Temp Unit MR8902, Strain Unit MR8903
Real-time inter-
* Inter-channel calculations are limited to a single module.
channel calculations
* Scaling and probe settings will be disabled if their channel has a calculation set to it.
* Calculation results can be scaled.
* Calculations between different user-set phenomena on the MR8902 and
MR8903 are not supported.
· Calculations: addition, subtraction, multiplication
Numerical calculation
· Up to 8 calculations can be performed simultaneously · Calculation memory location: internal memory · Calculations: average, effective (rms), peak to peak, maximum value, time to maximum value, minimum value, time to mini-
mum value, period, frequency, rise time, fall time, area value, X-Y area value, standard deviation, specified level time, specified time level, pulse width, duty ratio, pulse count, time difference,
phase difference, high-level, low-level, arithmetic calculations. Calculation results can be saved to an SD memory card or USB memory stick. ·Calculation range: select from all measurement data or between A/B or C/D cursors · Automatic storing of calculation results in CSV format to the SD card or the USB memory stick
Waveform calculations
· Up to 8 calculations can be performed simultaneously. · Calculation memory location: internal memory · Calculations: basic arithmetic, absolute values, exponents, common logarithms, square roots, differentials (1st and 2nd order),
integrals (1st and 2nd order), moving averages, time-axis moving averages, trigonometric operations (SIN, COS, TAN), inverse trigonometric operations (ASIN, ACOS, ATAN), FIR filter operations, IIR filter operations, average values, maximum values, minimum values, level at time · Calculation range: all measurement data; areas between the A/B and C/D cursors can be selected.
FFT calculations
· Up to 4 calculations can be performed simultaneously. · Calculation memory location: internal memory · Calculation modes: single, repeat · Number of points: 1,000 to 10,000 · Number of skips: automatic, 100 to 10,000
* It can be set only when the calculation mode is “Repeat”.
· Window functions: rectangular window, Hanning, Hamming, Blackman, Blackman-Harris, flat top, exponential · Averaging: off, simple average, indexed average, peak hold · Compensation: none, power, average · Peak value display: off, local maximum value, maximum value · Analysis mode: off, linear spectrum, RMS spectrum, power spectrum, transmission function, cross-power spectrum, coherence function, phase spectrum · Display scale: linear scale, log scale
Evaluation
Calculation result evaluation output: GO/STOP (with open-drain 5 V output)
Other functions
External sampling
Maximum input: up to 10 V DC Maximum input frequency: 200 kHz
Input signal condition: high level 2.5 to 10 V, Low level 0 to 0.8 V, Pulse width high or low 2.5 s or longer
Other
·Scaling, comment entry, select from time, date, and number of data for the horizontal axis display, key lock ·Beep sound on/off ·Auto range setting (automatically sets the best suitable sampling rate and
amplitude range)
·Hold start condition (when the power is interrupted during recording,
measurement automatically resumes after power is restored)
·Auto set up (automatically loads setting files stored in internal memory or
the SD card)
·Save the setting condition in internal memory (up to 6 conditions) ·Manual data save
Pulse input section
No. of channels
2 channels, push-button type terminal, not isolated (common GND
with main unit)
Mode
Rotation, integration
Measurement functions
·Divided rotation: 1 to 50,000 count (rotation number: number of pulses
per rotation; integration: number of pulses per count)
·Timing: select from “starting the count at the trigger” or “at the start of measurement”. ·Integration mode: select from “integration from the start of measurement” or “instantaneous value at each sampling period” ·Processing of integration overflows: select either “value returns to 0 and counting continues” or “the overflow state persists”
Input form
·No-voltage `a’ contact (normally open contact), no-voltage `b’ con-
tact (normally short contact), open collector or voltage input ·Input resistance: 1.1 M
Max. allowable input 0 V to 50 V DC (max. voltage between input terminals that does not cause damage)
Max. rated voltage between channels
Not isolated (common GND with main unit)
Max. rated voltage to earth Not isolated (common GND with main unit)
Detection level
4 V: (high: over 4.0 V, low: 0 to 1.5 V) 1 V: (high: over 1.0 V, low: 0 to 0.5 V)
Pulse input period
With filter off: 200 s or more (both high and low periods must be at least 100 s) With filter on: 100 ms or more (both high and low periods must be at least 50 ms)
Slope Filter
Count at rising edge, or count at falling edge Chatter prevention filter (on/off switchable)
Setting range Resolution
Measurement range
2,500 c/div 25 kc/div
1 c/LSB 10 c/LSB
0 to 65,535 c 0 to 655,350 c
250 kc/div 100 c/LSB
0 to 6,553,500 c
5 Mc/div
2 kc/LSB
0 to 131,070,000 c
125 Mc/div Rotation: 250 [r/s]/div
50 kc/LSB 1 [r/s]/LSB
0 to 3,276,750,000 c 0 to 5,000 [r/s]
n Maximum time to record to the internal storage memory
* The MR8875 is able to save up to 16 channels of data per module. The graph below shows 16 channels because it is looking at storage per unit. However all units in use will follow the same maximum recording time.
* Built-in logic, and pulses P1 and P2 each use the capacity equivalent to one analog channel.
n External appearance and dimensions
Input module slots (for up to 4 input modules)
84 mm
Number of channels to be used
9 ch to 16 ch
5 ch to 8 ch
3ch to 4 ch
2 ch
1 ch
Time axis
Sampling period
5,000 div
10,000 div
20,000 div 40,000 div 80,000 div
200 s/div
2 s
1 s
2 s
4 s
8 s
16 s
500 s/div
5 s
2.5 s
5 s
10 s
20 s
40 s
1 ms/div 10 s
5 s
10 s
20 s
40 s
1 min 20 s
2 ms/div 20 s
10 s
20 s
40 s
1 min 20 s
2 min 40 s
5 ms/div 50 s
25 s
50 s
1 min 40 s
3 min 20 s
6 min 40 s
10 ms/div 100 s
50 s
1 min 40 s
3 min 20 s
6 min 40 s
13 min 20 s
20 ms/div 200 s
1 min 40 s
3 min 20 s
6 min 40 s
13 min 20 s
26 min 40 s
50 ms/div 500 s
4 min 10 s
8 min 20 s
16 min 40 s
33 min 20 s 1 h 06 min 40 s
100 ms/div 1 ms
8 min 20 s
16 min 40 s
33 min 20 s 1 h 06 min 40 s 2 h 13 min 20 s
200 ms/div 2 ms
16 min 40 s
33 min 20 s 1 h 06 min 40 s 2 h 13 min 20 s 4 h 26 min 40 s
500 ms/div 5 ms
41 min 40 s 1 h 23 min 20 s 2 h 46 min 40 s 5 h 33 min 20 s 11 h 06 min 40 s
1 s/div 10 ms 1 h 23 min 20 s 2 h 46 min 40 s 5 h 33 min 20 s 11 h 06 min 40 s 22 h 13 min 20 s
2 s/div 20 ms 2 h 46 min 40 s 5 h 33 min 20 s 11 h 06 min 40 s 22 h 13 min 20 s 1 d 20 h 26 min 40 s
5 s/div 50 ms 6 h 56 min 40 s 13 h 53 min 20 s 1 d 03 h 46 min 40 s 2 d 07 h 33 min 20 s 4 d 15 h 06 min 40 s
10 s/div 100 ms 13 h 53 min 20 s 1 d 03 h 46 min 40 s 2 d 07 h 33 min 20 s 4 d 15 h 06 min 40 s 9 d 06 h 13 min 20 s
30 s/div 300 ms 1 d 17 h 40 min 3 d 11 h 20 min 6 d 22 h 40 min 13 d 21 h 20 min 27 d 18 h 40 min
50 s/div 500 ms 2 d 21 h 26 min 40 s 5 d 18 h 53 min 20 s 11 d 13 h 46 min 40 s 23 d 03 h 33 min 20 s 46 d 07 h 06 min 40 s
60 s/div 600 ms 3 d 11 h 20 min 6 d 22 h 40 min 13 d 21 h 20 min 27 d 18 h 40 min 55 d 13 h 20 min
100 s/div 1.0 s 5 d 18 h 53 min 20 s 11 d 13 h 46 min 40 s 23 d 03 h 33 min 20 s 46 d 07 h 06 min 40 s 92 d 14 h 13 min 20 s
2 min/div 1.2 s 6 d 22 h 40 min 13 d 21 h 20 min 27 d 18 h 40 min 55 d 13 h 20 min 111 d 02 h 40 min
5 min/div 3.0 s 17 d 08 h 40 min 34 d 17 h 20 min 69 d 10 h 40 min 138 d 21 h 20 min 277 d 18 h 40 min
External power supply
(3 lines, +5 V output, common GND with the body GND)
Logic probe terminals (4 ch × 2 probes) LAN and USB
224 mm
For the AC adapter Z1002 power, or DC power (10 V to 28 V)
298 mm
External control terminal
SD card slot
14
n Options specifications (sold separately)
n MR8902 specifications
Plug-in slot for the input modules
Measurement target
Input module
Measurement range
Resolution
Voltage
Current RMS AC voltage
Temperature (thermocouple)
Analog Unit MR8901
100 mV f.s. to 200 V f.s.
4 µV
Analog Unit MR8905
10 V f.s. to 1000 V f.s.
400 µV
Voltage/Temp Unit MR8902 10 mV f.s. to 100 V f.s.
0.5 µV
Strain Unit MR8903
1 mV f.s. to 20 mV f.s.
0.04 µV
Analog Unit MR8901 + additional current sensor
Depends on current sensor(s) in use * Certain current sensors require a separate 1/1250 div
power supply
Analog Unit MR8905
10 V rms f.s. to 700 V rms f.s.
400 µV
Analog Unit MR8901 + additional Differential Probe 9322
100 V rms to 1 kV rms
1/1250 div
200°C f.s. to 2000°C f.s. Voltage/Temp Unit MR8902 * Upper and lower limit values depend on the 0.01°C
thermocouple in use
Distortion, stress Strain Unit MR8903
400 µ to 20,000 µ f.s.
0.016 µ
Analyze CAN signals CAN Unit MR8904
*CAN FD not supported
Relay contacts, voltage on/off
Logic Probe 9320-01
AC/DC voltage on/off Logic Probe MR9321-01
2 ports/unit
*Up to 15 analog channels, each equivalent to a 16-bit analog signal
*Up to 16 logic channels, each equivalent to a 1-bit logic signal
Depends on logic probes in use
* Max. input 50 V, threshold +1.4/+2.5/+4.0 V * Contact short/open, non-voltage
N/A N/A
Depends on logic probes in use
* Up to 250 V AC/DC, detects live or not live
N/A
Thermocouples
Setting ranges
(full scale = 20 div)
Resolution
Measurement ranges
Accuracy
10 °C/div
0.01°C
-100°C to less than 0°C 0°C to 200°C
±0.8°C ±0.6°C
K
50°C
0.05°C
-200°C to less than -100°C -100°C to 1000°C
±1.5°C ±0.8°C
100°C
0.1°C
-200°C to less than -100°C -100°C to 1350°C
±1.5°C ±0.8°C
10 °C/div
0.01°C
-100°C to less than 0°C 0°C to 200°C
±0.8°C ±0.6°C
J
50°C
0.05°C
-200°C to less than -100°C -100°C to 1000°C
±1.0°C ±0.8°C
100°C
0.1°C
-200°C to less than -100°C -100°C to 1200°C
±1.5°C ±0.8°C
10 °C/div
0.01°C
-100°C to less than 0°C 0°C to 200°C
±0.8°C ±0.6°C
-200°C to less than -100°C
±1.5°C
50°C
0.05°C
-100°C to less than 0°C
±0.8°C
E
0°C to 1000°C
±0.6°C
-200°C to less than -100°C
±1.5°C
100°C
0.1°C
-100°C to less than 0°C
±0.8°C
0°C to 1000°C
±0.6°C
10 °C/div
0.01°C
-100°C to less than 0°C 0°C to 200°C
±0.8°C ±0.6°C
-200°C to less than -100°C
±1.5°C
50°C
0.05°C
-100°C to less than 0°C
±0.8°C
T
0°C to 400°C
±0.6°C
-200°C to less than -100°C
±1.5°C
100 °C
0.1°C
-100°C to less than 0°C
±0.8°C
0°C to 400°C
±0.6°C
Note: the thermocouple accuracy is obtained by adding a reference junction compensation accuracy of ±0.5°C
Dimensions, weight: approx. 119.5W × 18.8H × 151.5D mm (4.70W × 0.74H × 5.96D in.), approx. 180 g (6.3 oz.) accessories: None
Analog Unit MR8901 (accuracy at 23 ±5°C [73 ±9 °F], 20 to 80% rh after 30 min. of warm-up time and zero adjustment; accuracy guaranteed for 1 year)
Functions
No. of channels: 4, for voltage measurement
Input connectors
Isolated BNC connector (input resistance 1 M, input capacitance 10 pF) Max. rated voltage to earth: 100 V AC rms or 100 V DC (input is isolated from the main unit, the max. voltage that can be applied between input chan-
nels and chassis, and between input channels without damage)
5 mV to 10 V/div, 11 ranges, full scale: 20 div Measurement range * AC voltage can be measured/displayed: up to 140 V rms at × 1/2 amplitude
compression, but limited to 100 V rms is the max. rated voltage to earth
Low-pass filter
Low-pass filter: 5 Hz, 50 Hz, 500 Hz, 5 kHz, off
Resolution
1/1250 of measurement range (using 16-bit A/D converter)
Highest sampling rate 500 kS/s (simultaneous sampling across 4 channels)
Accuracy
±0.5% of full scale (with filter 5 Hz, zero position accuracy included)
Frequency characteristics DC to 100 kHz, -3 dB
Input coupling
DC/GND
Max. allowable input 150 V DC (the max. voltage that can be applied across input pins without damage)
Dimensions, weight: approx. 119.5W × 18.8H × 184.8D mm (4.70W × 0.74H × 7.28D in.), approx. 190 g (6.7 oz.) accessories: ferrite clamp × 2
Voltage/Temp Unit MR8902 (accuracy at 23 ±5°C [73 ±9°F], 20 to 80% rh after 30 minutes of warm-up time and zero adjustment; accuracy guaranteed for 1 year)
Functions
No. of channels: 15, for voltage/temperature measurement (selectable for each channel)
Input connectors
Voltage/thermocouple input: push-button terminal Recommended wire diameter: single-wire 0.32 mm to 0.65 mm, stranded wire 0.08 to 0.32 mm2 (conductor wire diameter min. 0.12
mm), AWG 28 to 22 Input resistance: 1 M Max. rated voltage to earth: 100 V AC rms or 100 V DC (input is isolated from the main unit, the max. voltage that can be applied between
input channels and chassis, and between input channels without damage)
500 V/div to 5 V/div, 9 ranges, full scale: 20 div * The AC instantaneous
Voltage
voltage waveform cannot be measured due to the slow sampling speed.
measurement ranges Resolution: 1/1000 of measurement range (using 16-bit A/D converter)
Accuracy: ±0.1% f.s. (with digital filter on, zero position accuracy)
Temperature measurement range
Reference junction compensation: internal/external (selectable) Thermocouple broken-wire detection: on/off (selection applies to entire unit)
Thermocouple type: K, J, E, T, N, R, S, B, WRe5-26 * For thermocouple measurement ranges, resolution, and accuracy, refer to the specifications table below
Digital filter
50 Hz, 60 Hz, or off
Data refresh rate
10 ms (with filter off, burn-out detection off) 20 ms (with filter off, burn-out detection on) 500 ms (with filter on, data refresh rate: fast) 2 s (with filter on, data refresh rate: normal)
Max. allowable input 100 V DC (the max. voltage that can be applied across input pins without damage) 100 V DC (the max. voltage that can be applied across input channels without damage.)
Max. allowable input The channels are insulated by semiconductor relays. If a voltage across input channels exceeding the product specifications is applied between input
channels, such as a lightning surge, it may cause a short circuit failure
of the semiconductor relay. Please make such a voltage is not applied.
Dimensions, weight: approx. 119.5W × 18.8H × 151.5D mm (4.70W × 0.74H × 5.96D in.), approx. 173 g (6.1 oz.) accessories: conversion cable × 2 (Connectable connector: TAJIMI PRC03-12A10-7M10.5)
Strain Unit MR8903
(accuracy at 23 ±5°C [73 ±9°F], 20 to 80% rh after 30 minutes of warm-up time and autobalancing; accuracy guaranteed for 1 year)
Functions
No. of channels: 4, for voltage/strain measurements (selectable for each channel, electronic auto-balancing, balance adjustment range within ±10,000
V, ±10,000 )
Input connectors
Unit side: “HDR-EC14LFDTG2-SLE+” made by Honda Tsushin Kogyo Co., Ltd. Japan Via conversion cable, “PRC03-12A10-7M10.5” made by Tajimi Electronics Co., Ltd. Japan Max. rated voltage to earth: 33 V AC rms or 70 V DC (input is isolated from the main unit, the max. voltage that can be applied between input channel and chassis, and between input channels without damage)
Suitable transducer
Strain gauge converter, bridge resistance: 120 to 1 k, bridge voltage: 2 V ±0.05 V, Gauge rate: 2.0
Input resistance
More than 1 M
Voltage measurement ranges
50 V/div to 1,000 V/div, 5 ranges, full scale: 20 div Accuracy: ±0.5% f.s. + 4 V (at 50 V/div only), other ranges ±0.5% f.s.
(after auto-balance, with filter 5 Hz, zero position accuracy included)
Strain measurement ranges
20 /div to 1,000 /div, 6 ranges, full scale: 20 div Accuracy: ±0.5% f.s. + 4 (at 20, 50 /div), other ranges ±0.5% f.s.
(after auto-balance, with filter 5 Hz, zero position accuracy included)
Low-pass filter
Low-pass filter: 5 Hz, 10 Hz, 100 Hz, 1 kHz, off
Resolution
1/1250 of measurement range (using 16-bit A/D converter)
Highest sampling rate 200 kS/s (simultaneous sampling across 4 channels)
Frequency characteristics DC to 20 kHz, +1/-3 dB
Max. allowable input 10 V DC (the max. voltage that can be applied across input pins without damage)
Dimensions, weight: approx. 119.5W × 18.8H × 151.5D mm (4.70W × 0.74H × 5.96D in.), approx. 185 g (6.5 oz.), accessories: none
CAN Unit MR8904* *CAN FD not supported
Input CAN port Standards Interface ACK transmission Terminator Baud rate Analyzed signal output channel
Signal form
ID trigger
Response time Transmit CAN message
Number of ports: 2, connector: D-sub male 9 pin × 2
ISO 11898 CAN 2.0b, ISO 11898-1, ISO 11898-2, ISO 11898-3, SAE J2411 Selectable: high-speed CAN, low-speed CAN, or single-wire CAN by port (with built-in corresponding transceiver) On/off for transmitting an ACK for receiving CAN signal with the MR8904
On/off via commands, 120 ±10 built-in resistance 50 kbps to 1 Mbps at “High-speed”, 10 kbps to 125 kbps at “Lowspeed”, 10 kbps to 83.3 kbps at “Single-wire”
Up to 15 analog channels each equivalent to a 16-bit analog signal Up to 16 logic channels each equivalent to a 1-bit logic signal
1-bit signal: 1 channel of logic, or 1 channel of analog 1-bit to 16-bit signal: 1 channel of analog 17-bit to 32-bit signal: 2 channels of analog * Cannot handle signals over 32-bit
Output “H” level pulse to designated logic channel when receiving set ID signal * Output pulse width: 50 s below 5 ms/div time axis, 1 sampling time at more than 10 ms/div time axis
Within 200 s after completely receiving CAN message
Can transmit a set CAN message to the CAN bus per port
n Options specifications (sold separately)
n CAN Editor specifications (software bundled with the MR8904) (The following values
*CAN FD not supported
are for one MR8904)
Operating environment
Windows 8/8.1 (32-bit/64-bit) Windows 10 (32-bit/64-bit): operation confirmed
CAN definition settings
CAN message ID, Start position, data length Data order: U/L (Motorola), L/U (Motorola), L/U (Intel) Code: unsigned, 1-signed, 2-signed
CAN db file
·Load CAN db file ·Convert to “.cdf” file
·Register to list (editing not available), 33-bit data and above not supported
·Convert data order: Motorola (CANdb file) to U/L (Motorola) ·Convert coded file (CANdb file) to 2-signed, IEEE float or double (CANdb file) not supported ·Convert signal name (CANdb file) to the label ·Convert comment (CANdb file) to the signal name
Registration list settings
CAN input port setting: port 1, port 2, item number: 1 to 200 Setting upper/lower limit display on the MR8875 screen
·Interface: high-speed, low-speed, single-wire
·Terminator: on/off (on is enabled at “High-speed” only)
CAN communication ·ACK: on/off
settings
·Baud rate: AUTO (enabled at ACK off only)
50 kbps to 1 Mbps at “High-speed”, 10 kbps to 125 kbps at “Low-
speed”, 10 kbps to 83.3 kbps at “single-wire”
Analog channel settings
Number of channels: 15
·Assign the definition on the registration list under 16-bit to 1 channel ·Assign the definition on the registration list for 17-bit to 32-bit to 2 channels
Logic channel settings
Number of channels: 16
·Assign the definition on the registration list under 16-bit, with bit position ·Assign the definition on the registration list to the ID trigger
Transmission settings
Transmission number, mode, CAN output port, frame type, transmission ID, transmission byte length, transmission data, answer ID,
transmission period
Communication with the MR8875
Search MR8875 via USB, registration list, CAN communication setting, analog channels settings, logic channel settings, transmission
setting information, etc.
Printing functions
Registration list, all items of CAN communication settings, assigned analog list, assigned logic list, all items of transmission settings
Save functions
CAN definition data: binary form, “.cdf” extension, convertible to software for Hioki Model 8910 Setting date (all contents without CAN definition data): binary form, “.ces” extension
Dimensions, weight: approx. 119.5W × 18.8H × 151.5D mm (4.70W × 0.74H × 5.96D in.), approx. 185 g (6.5 oz.), accessories: none
Analog Unit MR8905 (accuracy at 23 ±5°C [73 ±9°F], 20 to 80% rh after 30 min. of warm-up time and zero adjustment; accuracy guaranteed for 1 year)
Functions
No. of channels: 2, switchable between instantaneous values and AC RMS values
Input connectors
Banana connector (input impedance 4 M, input capacitance less than 1 pF) Max. rated voltage to earth: CAT II 1000 V AC & DC, CAT III 600 V AC & DC (since input is isolated from the main unit, the max. voltage that can be applied between input channel and chassis, and between input chan-
nels without damage)
500 mV/div to 50 V/div, 7 ranges, full scale: 20 div Measurement range *The maximum displayable AC voltage is 700 Vrms when using 1/2 compres-
sion of the vertical axis.
Low-pass filter
5 Hz, 50 Hz, 500 Hz, 5 kHz, off
Resolution
1/1250 of measurement range (using 16-bit A/D converter)
Highest sampling rate 500 kS/s (simultaneous sampling across 2 channels)
Accuracy
±0.5% f.s. (with 5 Hz filter on)
RMS measurement
RMS accuracy: ±1.5% f.s. (from 30 Hz up to but not including 1 kHz, sine wave input) or ±3% f.s. (1 kHz to 10 kHz, sine wave input) Response time: 300 ms (filter off, rising from 0% to 90% f.s.) or 600 ms
(filter off, falling from 100% to 10% f.s.) Crest factor 2
Frequency characteristics DC to 100 kHz, -3 dB
Input coupling
DC/AC-RMS/GND
Max. allowable input
1000 V DC, 700 V AC (the max. voltage that can be applied across input pins without damage)
Cable length and weight: main unit cable 1.5 m (4.92 ft.), input section cable 1 m (3.28 ft.), approx. 320 g (11.3 oz.) Note: The unit-side plug of the MR9321-01 is different from the MR9321.
LOGIC PROBE MR9321-01
Function
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), hight/low range switching Input resistance: 100 k or higher (high range), 30 k 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)
15
Cable length and weight: main unit cable 1.5 m (4.92 ft.), input section cable 30 cm (0.98 ft.), approx. 150 g (5.3 oz.) Note: the unit-side plug of the 9320-01 is different from the 9320.
LOGIC PROBE 9320-01
Function
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 M (with digital input, 0 to +5 V) 500 k or more (with digital input, +5 V to +50 V)
Pull-up resistance: 2 k (contact input: internally pulled up to +5 V)
Digital input threshold 1.4 V, 2.5 V, 4.0 V
Contact input detection resistance
1.4 V: 1.5 k or higher (open) and 500 or lower (short) 2.5 V: 3.5 k or higher (open) and 1.5 k or lower (short) 4.0 V: 25 k or higher (open) and 8 k or lower (short)
Detectable pulse width 500 ns or longer
Max. allowable input
0 to +50 V DC (the maximum voltage that can be applied across input pins without
damage)
Cable length and weight: 70 cm (2.30 ft.), output side: 1.5 m (4.92 ft.), 170 g (6.0 oz.)
DIFFERENTIAL PROBE P9000
(accuracy guaranteed for 1 year)
P9000-01: for waveform monitoring output, frequency properties: DC to 100
kHz, -3 dB
Measurement modes
P9000-02: switches between waveform monitor output and AC effective value output
Wave mode frequency properties: DC to 100 kHz, -3 dB, RMS mode frequency
properties: 30 Hz to 10 kHz, response time: rise 300 ms, fall 600 ms
Division ratio
Switches between 1000:1 and 100:1
DC output accuracy ±0.5% f.s. (f.s. = 1.0 V, division ratio 1000:1), (f.s. = 3.5 V, division ratio 100:1)
Effective value mea- ±1% f.s. (30 Hz to less than 1 kHz, sine wave), ±3% f.s. (1 kHz to 10 kHz, sine surement accuracy wave)
Input resistance/capacity H-L: 10.5 M, 5 pF or less (at 100 kHz) Maximum input voltage 1000 V AC, DC
Maximum rated voltage to ground
1000 V AC, DC (CAT III)
Operating temperature range
-40°C to 80°C (-40°F to 176°F)
Power supply
(1) AC adapter Z1008 (100 to 240 V AC, 50/60 Hz), 6 VA (including AC adapter), 0.9 VA (main unit only) (2) USB bus power (5 V DC, USB-microB terminal), 0.8 VA (3) External power source 2.7 V to 15 V DC, 1 VA
Accessories
Instruction manual × 1, alligator clip × 2, carrying case × 1
NON-CONTACT CAN SENSOR SP7001, SP7002
Detection method
Capacitive-coupled signal detection No bare-wire connections
Detectable cables
AVS/AVSS-compliant cables, External diameter: 1.2 mm (0.05 in) to 2.0 mm (0.08 in)
Number of channels 1 CH (SP7150), 2 CH (SP7100)
Compatible commu- SP7001: CAN, CAN FD 125 kbit/s to 3 Mbit/s nications speeds SP7002: CAN 125 kbit/s to 1 Mbit/s
Total delay time
130 ns (typical)
CAN terminal resistance 60 (typical), built-in
Signal output connector D-sub 9-pin female
Included accessories (SP7150)
Quick Start Manual ×1, Operating Precautions ×1, Spiral tube (for fixing
power cable) ×1, USB Cable L9510 ×1, Ground connection cable ×1, Alligator clip ×1
*CAN FD is not supported when using with the MR8875 and MR8904.
Analyzing data on a computer
WAVE PROCESSOR 9335 (option)
· Waveform display and calculation
· Print function
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
n 9335 outline specifications (option)
Operating environment Windows 10/8/7 (32/64-bit)
Functions
· 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 the computer’s
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 format: select from no tiling, 2 to 16 tiles, 2 to 16 rows, X/Y 1 to
4 tiles, preview & hard copy
n Wave Viewer (Wv) outline specifications (bundled software) Operating environment Windows 10/8/7 (32/64-bit)
Functions
· Simple display of waveform file
· Convert binary data file to text format, CSV · Scroll display, enlarge/reduce, jump to cursor/trigger position, etc.
Input modules
Input cable (A)
Input cable (B)
MR8875 Options in Detail
*Install by inserting into the main unit. Can be replaced by user. Input cables are not supplied.
ANALOG UNIT MR8901
4ch, voltage measurement, DC to 100 kHz bandwidth
VOLTAGE/TEMP UNIT MR8902
15ch, voltage measurement, thermocouple measurement
STRAIN UNIT MR8903
4ch, voltage measurement, strain gauge converter input, conversion cable included
CAN UNIT MR8904
Up to 15 analog channels each equivalent to a 16-bit analog signal, and up to 16 logic channels each equivalent to a 1-bit logic signal *CAN FD not supported
ANALOG UNIT MR8905
2 channels, high-voltage DC/RMS input, DC to 100 kHz band
*Voltage is limited to the specifications of the input modules in use
Recommended
ALLIGATOR CLIP L9790-01
Red/black set attaches to the ends of the cables L9790
CONNECTION CORD L9790
Flexible 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.
CONTACT PIN 9790-03
Red/black set attaches to the ends of the cables L9790
GRABBER CLIP 9790-02
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 CAT II 300 V. Red/black set
L9790
L9790-01
9790-03
9790-02
*Voltage is limited to the specifications of the input modules in use
CONNECTION CORD L9198 CONNECTION CORD L9197
5.0 mm (0.20 in.) dia., cable allowing 5.0 mm (0.20 in) dia., cable allowing for
for up to 300 V input. 1.7 m (5.58 ft.) up to 600 V input, 1.8 m (5.91 ft) length,
length, small alligator clip
detachable large alligator clips are bundled
* Voltage input via banana terminals limited by the voltage specifications of the respective input unit.
CONNECTION CABLE SET L4940 Banana plug, 1.5 m (4.92 ft.) length, red/black, 1 each
EXTENSION CABLE L4931 Extends the length of the cable with banana plug, 1.5 m (4.92 ft.) length
ALLIGATOR CLIP
L4935 Attaches to the tip of the banana plug cable, CAT IV 600 V, CAT III 1000 V
BUS BAR CLIP
L4936 Attaches to the tip of the banana plug cable, CAT III 600 V
MAGNETIC
ADAPTER L4937 Attaches to the tip of the banana plug cable, CAT III 1000 V
GRABBER CLIP L9243 Attaches to the tip of the connection cable, 185 mm (7.28 in.) length, CAT II 1000 V
*Voltage to ground is within this product’s specifications. Separate power source is also required.
DIFFERENTIAL PROBE DIFFERENTIAL PROBE AC ADAPTER
P9000-01
P9000-02
Z1008
Waveform only, up to 1 kV AC/ Waveform/RMS value switch- 100 V AC to 240 V
DC, band width up to 100 kHz able, up to 1 kV AC/DC, band AC
width up to 100 kHz
NON-CONTACT CAN SENSOR SP7001-95
Sensor that can monitor CAN over cable *CAN FD is not supported when using with the MR8875 and MR8904.
CAN CABLE 9713-01
For the MR8904 (MR8875), 8910, unprocessed on one end, 1.8 m (5.91 ft.) length
CONNECTION CORD L9217
Cord has insulated BNC connectors at both ends, 1.6 m (5.25 ft.) length
CONVERSION ADAPTER 9199
Receiving side banana, output BNC terminal
Case
Power supply
Input cable (E)
PC software
Storage media
Logic signal measurement
*A separate power supply (CT9555) is required in order to use a high-precision current sensor. *Only sensors with ME15W (12-pin) terminals can be connected to the CT9555. *The separately available Conversion Cable CT9900 is required in order to use a sensor with PL23 (10-pin) terminal.
POWER SUPPLY for Current Sensors SENSOR UNIT CT9555 1ch, with waveform output
CONNECTION CORD L9217 Cord has insulated BNC connectors at both ends, 1.6 m (5.25 ft.) length
PL23 (10-pin) to ME15W (12-pin) conversion CONVERSION CABLE CT9900
Converts PL23 (10-pin) terminal to ME15W (12-pin) terminal
Model: MEMORY HiCORDER MR8875
Model No. (order code)
MR8875
(Max. 16 to 60ch, 32 MWord memory, main unit only)
*Cannot operate alone, you must install other options
* Only the small terminal types can be used.
LOGIC PROBE 9320-01
4-channel type, for voltage/contact signal on/off detection (response pulse width 500 ns or more, minia-
ture terminal type)
LOGIC PROBE MR9321-01
4 isolated channels, on/off detection of AC/DC voltage (miniature terminal type)
SD MEMORY CARD 2GB Z4001
2 GB capacity
SD MEMORY CARD Z4003
8 GB capacity
Use only CF Cards or USB drives sold by HIOKI. Compatibility and performance are not guaranteed for CF cards or USB memory sticks made by other manufacturers. You may be unable to read from or save data to such
cards.
USB DRIVE Z4006
16 GB, long-life, high-reliability SLC flash memory
WAVE PROCESSOR 9335
Convert data, print and display waveforms
LAN CABLE 9642
Straight Ethernet cable, supplied with straight to cross conversion cable, 5 m (16.41 ft.) length
FlexPro (third party software)
Advanced software for analysis and presentation of Memory HiCorder data More information: Weisang GmbH (Germany) http://www.weisang.com/
*Voltage to ground is within this product’s specifications. Separate power source is also required.
DIFFERENTIAL PROBE 9322
For up to 1 kV AC or 2 kV DC, frequency band width up to 10 MHz
AC ADAPTER 9418-15
100 V AC to 240 V AC.
*Z1002 is a bundled accessory
Up to 1000 A (high precision) *ME15W (12-pin) terminal type
High-precision pull-through current sensors, observe waveforms from DC to distorted AC
AC/DC CURRENT SENSOR CT6862-05, 1 MHz, 50 A AC/DC CURRENT SENSOR CT6863-05, 500 kHz, 200 A
High-precision pull-through current sensors, observe waveforms from DC to distorted AC
AC/DC CURRENT SENSOR CT6872, 10 MHz, 50 A AC/DC CURRENT SENSOR CT6873, 10 MHz, 200 A
High-precision pull-through current sensors, observe waveforms from DC to distorted AC
AC/DC CURRENT SENSOR CT6904A, 4 MHz, 500 A
High-precision pull-through current sensors, observe waveforms from DC to distorted AC
AC/DC CURRENT SENSOR CT6875A, 2 MHz, 500 A AC/DC CURRENT SENSOR CT6876A, 1.5 MHz, 1000 A
Observe waveforms from DC to distorted AC AC/DC CURRENT PROBE CT6841A, 2 MHz, 20 A AC/DC CURRENT PROBE CT6843A, 700 kHz, 200 A
Observe AC waveforms (cannot observe DC) CLAMP ON SENSOR 9272-05, 100 kHz, 200 A
Observe waveforms from DC to distorted AC AC/DC CURRENT PROBE CT6844A, 500 kHz, 500 A AC/DC CURRENT PROBE CT6845A, 200 kHz, 500 A AC/DC CURRENT PROBE CT6846A, 100 kHz, 1000 A
Precautions when connecting a high-precision current sensor to a Memory HiCorder Connecting to the MR8875 · High-precision current sensor (ME15W) + CT9555 + BNC cable MR8875 · High-precision current sensor (PL23) + CT9900 + CT9555 + BNC cable MR8875
Other current sensor types
The MR8875 can be used with various types of current sensors and probes. For details, see product information on Hioki’s website.
The CM7290 (available separately) is required in order to use these current sensors.
100 A to 2000 A (medium speed) AC/DC CURRENT SENSOR CT7631
DC, 1 Hz to 10 kHz, 100 A
AC/DC AUTO ZERO CURRENT SENSOR CT7731
DC, 1 Hz to 5 kHz, 100 A
AC/DC CURRENT SENSOR CT7636
DC, 1 Hz to 10 kHz, 600 A
AC/DC AUTO ZERO CURRENT SENSOR CT7736
DC, 1 Hz to 5 kHz, 600 A
AC/DC CURRENT SENSOR CT7642
DC, 1 Hz to 10 kHz, 2,000 A
AC/DC AUTO ZERO CURRENT SENSOR CT7742
DC, 1 Hz to 5 kHz, 2,000 A
DISPLAY UNIT CM7290
Provides measurement, display, and output functionality when used with the CT7000s.
DISPLAY UNIT CM7291
with built-in Bluetooth® wireless technology
OUTPUT CORD L9095
Connect to BNC terminal, 1.5 m (4.92 ft.) length
AC ADAPTER Z1002
For main unit, 100 V AC to 240 V AC
BATTERY PACK Z1003
NiMH, charges while installed in the main unit
CARRYING CASE C1004
Includes compartment for options, hard trunk type, also suitable for transporting the MR8875
*For reference only. Please purchase locally.
Thermocouple
500 A to 5000 A *For commercial power lines, 50/60 Hz
CLAMP ON PROBE 9018-50
Good phase characteristics, frequency characteristics: 40 Hz to 3 kHz, 10 to 500 A AC range, output 0.2 V AC f.s.
CLAMP ON PROBE 9132-50
Frequency characteristics: 40 Hz to 1 kHz, 20 to 1000 A AC range, output 0.2 V AC f.s.
AC FLEXIBLE CURRENT SENSOR CT9667-01/-02/-03
10 Hz to 20 kHz, 5000/500 A AC, 500 mV/f.s. output, 100 to 254 mm (3.94 to 10.00 in.), 3 loop diameters
Leak Current *For commercial power lines, 50/60 Hz AC LEAKAGE CLAMP METER CM4003
6 mA range (1 A resolution) to 200 A range, with WAVE/ RMS output, Connection Cable L9097 included
AC ADAPTER Z1013
100 V AC to 240 V AC
Temperature sensor
Note: Company names and product names appearing in this brochure are trademarks or registered trademarks of various companies.
DISTRIBUTED BY
Input cable (C)
Input cable (D)
Other options for Input
HEADQUARTERS 81 Koizumi, Ueda, Nagano 386-1192 Japan https://www.hioki.com/
All information correct as of Mar. 18, 2024. Contents are subject to change without notice.
MR8875E19-43M
Documents / Resources
 |
HIOKI MR8875 Memory HiCORDER 1000V Direct Input Multi Channel Logger [pdf] User Manual MR8875, MR8875 Memory HiCORDER 1000V Direct Input Multi Channel Logger, MR8875 Memory HiCORDER, Memory HiCORDER, HiCORDER, MR8875 HiCORDER, Memory HiCORDER 1000V Direct Input Multi Channel Logger, 1000V Direct Input Multi Channel Logger, 1000V Direct Input Logger, Multi Channel Logger, Logger |
