HIOKI MR8740(T) and MR8741 Memory Recorders/DAQ Systems
Description
Accessories
Files/Downloads
Benefits of the MR874x Series Multi-Channel Data Recorders
- Modular memory recorders with modules for voltage, current, temperature, AWG, and more.
- Individual multi-channel configurations in rack-mountable device.
- Display-less design, external display and mouse can be conntcted.
HIOKI MR8740(T) and MR8741 Memory Recorders/DAQ Systems
The HIOKI MR8740 and MR8741 memory recorders are rack-mounted single-device solutions data acquisition and generation. They offer features for waveform recording and generation with flexible modular high-speed 16 or 54-channel/isolated multi-channel individual configurations. The version MR8740T (also MR8740-50) has max. 108 analog channels and helps to reduce inspection data transfer time to zero.
- Modular memory recorders with support for flexible multi-channel configurations.
- High-speed, high-accuracy measurement without going through a scanner.
- Isolated input (between input channels; input-to-chassis isolation: maximum input-to-ground rated voltage of 300 VAC/DC.
- High-speed sampling (max. 20 MS/s).
- Measure 4 channels with 1 unit (4 channel analog unit U8975, 4 channel DVM unit U8991).
- Generate constant voltage, constant current, and simulated resistance (VIR generator unit U8794).
- Ideal for rack-mounting (4U height/within 180 mm; display-less, box-type design).
- Display waveforms and make settings on a DVI-D connected monitor and mouse.
- Remote measurement via LAN using control commands from a PC.
- LabVIEW and MATLAB script support available.
- Special on version MR8740T/MR8740-50:
- Ideal for multipoint inspection of high performance boards such as ECU.
- 108 channels analog to 96 channels analog + 48 channels logic input.
- Reduce time required to save to external media to max. 1/100 compared with conventional method.
- Supports 4K monitor to display multi-channel waveforms without overlapping.
Model Overview
| Model | MR8740 | MR8740T/MR8740-50 | MR8741 |
| Number of slots/input units | Block I max. 16 slots; block II max. 11 slots (limitation on number of slots when using the current unit 8971: Max. 4, when using the logic unit 8973: Block I max. 3; cannot use slots 9 to 16/block II max. 3; cannot use slots 9 to 11 | Max. 27 slots (logic unit 8973 is limited to slots 25 to 27, up to 3 units) | Max. 8 slots (limitation on number of slots: Cannot use current unit 8971; when using the logic unit 8973: Max. 3) |
| Number of channels | Block I 32 channels analog + 8 channels logic, or 29 channels analog + 56 channels logic (when used with built-in logic input + plug-in logic unit 8973 x3); block II 22 channels analog + 8 channels logic, or 19 channels analog + 56 channels logic (when used with built-in logic input + plug-in logic unit 8973 x3). Number of logic channels: Block I 8 channels logic (logic probe terminal GND share a common GND with chassis); block II 8 channels logic (logic probe terminal GND share a common GND with chassis). Limitation on using built-in logic input applies to both block I and block II (with logic measurement ON): Measurement resolution on slots 1 and 2 is limited up to 12 bit. Cannot use frequency unit 8970 on slots 1 and 2 When using the DVM unit MR8990 on slots 1 or 2: Cannot use built-in logic input | Using the U8975: Max. 108 channels analog, or 96 channels analog + 48 channels logic (when used in combination with U8975 + 8973). Using the 8966: Max. 54 channels analog, or 48 channels analog + 48 channels logic (when used in combination with 8966 + 8973). Note: Analog unit channels are isolated from each other and from chassis. Logic unit channels share a common GND with chassis. | 16 channels analog + 16 channels logic, or 10 channels analog + 64 channels logic (when used with built-in logic input + plug-in logic unit 8973 x3). Number of logic channels: 16 channels logic (logic probe terminal GND share a common GND with chassis) on condition that DVM unit MR8990 is used on slots 1 and 2, cannot use built-in logic input. Note: Measurement resolution on slots 1 and 2 is limited up to 12 bit; cannot use frequency unit 8970 on slots 1 and 2 |
| Measurement ranges | 5 mV...20 V/div, 12 ranges, resolution: 1/100 of range (when using 8966); 5 mV...50 V/div, 5 ranges, resolution: 1/50,000 of range (when using MR8990) | 100 mV...400 V f.s., 12 ranges, resolution: 1/2000 of range (when using 8966); 4...200 V f.s., 6 ranges, resolution: 1/32000 of range (when using U8975); 100 mV...1000 V f.s., 5 ranges, resolution: 1/1000 000 of range (when using MR8990); 1 V, 10 V, 100 V f.s., 3 ranges, resolution: 1/1000 000 of range (when using U8991) | (20 div full scale) 5 mV...20 V/div, 12 ranges, resolution: 1/100 of range (when using 8966); 5 mV...50 V/div, 5 ranges, resolution: 1/50,000 of range (when using MR8990) |
| Max. allowable input | 400 VDC (when using 8966; upper limit voltage that can be applied between input terminals without damage) | ||
| Max. rated voltage to earth | 300 VAC/DC (input and instrument are isolated; between input channels and chassis; upper limit voltage that can be applied between input channels without damage) | ||
| Frequency characteristics | DC...5 MHz (-3 dB, when using 8966) | ||
| Measurement | Time axis (memory operation) 5 µs...5 min/div; 26 ranges; time axis resolution: 100 points/div; time axis expansion: 3 stages from x2 to x10; compression: 13 stages from 1/2 to 1/20,000. Measurement functions: Memory (high-speed recording), FFT | Max. sampling speed 20 MS/s, all channels simultaneous, external sampling: 10 MS/s; measurement functions: Memory (high-speed recording) | Time axis (memory operation) 5 µs...5 min/div; 26 ranges; time axis resolution: 100 points/div; time axis expansion: 3 stages from x2 to x10; compression: 13 stages from 1/2 to 1/20,000. Measurement functions: Memory (high-speed recording), FFT, recorder |
| Memory capacity | 16 MW/channle (fixed), total of 864 MW installed. Removable storage USB memory stick (USB 2.0) | Total of 1 GWord installed, 16 MW/channel (when using 8966), 8 MW/channel (when using U8975 or MR8990), 4 MW/channel (when using U8991). Internal storage SSD 480 GB. Removable storage USB memory stick x8 | 16 MW/channel (fixed), total of 256 MW installed. Removable storage USB memory stick (USB 2.0) |
| Display | None (1 digital DVI terminal, 800x600 dots) | None, monitor output VGA, HDMI, display port, recommended resolution 1920x1080 dot or more | None (1 digital DVI terminal, 800x600 dots) |
| External interfaces | LAN 100Base-TX (DHCP and DNS support, FTP server, HTTP server); USB 2.0 Series A receptacle x2 (mouse operation) | LAN 1000 BASE-T, 100 BASE-TX, 10 BASE-TX (2 port; DHCP and DNS support, FTP server/cliant, HTTP server); USB 3.0 Series A receptacle x4, USB 2.0 x4 | LAN 100Base-TX (DHCP and DNS support, FTP server, HTTP server); USB 2.0 Series A receptacle x2 (mouse operation) |
| Power supply | 100...240 VAC, 50/60 Hz (250 VA max.) | 100...240 VAC, 50/60 Hz (400 VA max.) | 100...240 VAC, 50/60 Hz (120 VA max.) |
| Dimensions (mm) | 426 x 177 x 505 10.8 kg (main unit only) | 426 x 177 x 505, 14.0 kg (main unit only) | 350 x 160 x 320, 5.4 kg (main unit only) |
Included: HIOKIO MR 8740(T) or 8741, power cord, instruction manual/quick start manual, application CD, MR8740-50/MR8740T: Blank panel (blank slot only), rack installation hardware.
Note: Main device only, I/O units not included, ordered separately.
Model Versions and Modules
| Model | Description |
| MR8740 | Main unit, 27 slots, max. 54 channels analog + 16 channels logic, 20 MS/s |
| MR8740-50 (MR8740T) | Main unit, 27 slots, max. 108 channels analog (U8975), 96 channels analog + 48 channels logic, 20 MS/s |
| MR8741 | Main unit, 8 slots |
| ▸MR8990 | Digital voltmeter unit, 2 chanells high-precision DC V input, 0.1 µV resolution, high-speed sampling 500 times/s |
| ▸MR8790 | Waveform generator unit, 4 channel DC output ±10 V, sign waveform output 10 mHz...20 kHz |
| ▸MR8791 | Pulse generator unit, 8 channels, pulse output 0.1 Hz...20 kHz, pattern output |
| ▸U8793 | Arbitrary waveform generator unit, 2 channels, function generator 10 mHz...100 kHz, arbitrary waveform generator D/A refresh rate 2 MHz, output 15 V |
| ▸8966 | Analog unit 2 channels voltage input, DC...5 MHz bandwidth |
| ▸8967 | Temperature unit, 2 channels thermocouple input |
| ▸8968 | High resolution unit, 2 channels voltage input, DC...100 kHz bandwidth |
| ▸8969 | Strain unit, 2 channels strain gauge type converter amp. incl, cable L9769 |
| ▸8970 | Frequency unit, 2 channels frequency, RPM, pulse, etc. |
| ▸8971 | Current unit, 2 channels for current sensors, incl. 2x cabe 9318 |
| ▸8972 | DC/RMS unit, 2 channels voltage, DC...400 kHz, RMS rectifier, DC and 30...100 kHz bandwidth |
| ▸8973 | Logic unit, 4 terminals, 16 channels |
| ▸U8974 | High voltage unit, 2 channels voltage input, max. 1000 VDC and 700 VAC |
Information on product safety:
Manufacturer:
HIOKI E.E. Corporation, 81 Koizumi Ueda, Nagano 386-1192/JPN
www.hioki.com
(EU branch Germany)
