Hioki MR8740, MR8741 Memory HiCorder


MR8740, MR8741

High-Speed, 54- Or 16-Channel Memory Recorders Provide Advanced Data Acquisition And Rack-Mount Systems Integration

The MR8740 and MR8741 are rack-mountable data acquisition systems that deliver high-speed, multi-channel measurements over maximum of 32+22 channels. The MR8990 DVM unit is a 2-channel input unit for the MR8740/MR8741 for measuring 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.

Key Features

• Introducing the DVM Unit MR8990 with high 24-bit resolution! Perform high-speed, high-accuracy measurement without going through a scanner.

• Support for multi-channel measurement (MR8740: up to 54 ch; MR8741: up to 16 ch)

• Isolated input (between input channels; input-to-chassis isolation: maximum input-to-ground rated voltage of 300 V AC/DC)

• High-speed sampling (max. 20 MS/s; with 54-ch type, simultaneous sampling of up to 32 ch)

• 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 *Screen monitoring and remote operation available via Internet browser. For faster and more convenient remote operation, we recommend using the Hioki 9333 LAN Communicator.

Model No. (Order Code)

MR8740 Max. 54ch, 864MW memory, main unit only
MR8741 Max. 16ch, 256MW memory, main unit only

■ Basic Specifications (Accuracy Guaranteed For 1 Year, Post-Adjustment Accuracy Guaranteed For 1 Year)

MR8740 MR8741
Number of channels [Block I: 16 analog units]
From 32 ch analog + 8 ch standard logic inputs
[Block I: 13 analog units + 3 logic units]
26 ch analog + 56 ch logic (8 ch standard logic + 48 ch logic unit)[Block II: 11 analog units]
From 22 ch analog + 8 ch standard logic
[Block II: 8 analog units + 3 logic units]
16 ch analog + 56 ch logic (8 ch standard logic + 48 ch logic unit)
*Instrument consists of two blocks, Block I and Block II.
*Block I and Block II start measurement simultaneously by means of trigger synchronization (internal setting)
[8 analog units]
From 16 ch analog + 16 ch standard logic
[5 analog units + 3 logic units]
10 ch analog + 64 ch logic (16 standard logic + 48 logic unit)
Analog unit channels are isolated from each other and from chassis. Logic unit channels and standard logic terminal channels share a common GND with chassis.
Measurement ranges (20 div full scale) 5 mV to 20 V/div, 12 ranges, resolution : 1/100 of range (when using 8966)
5 mV to 50 V/div, 5 ranges, resolution : 1/50,000 of range (when using MR8990)
Max. allowable input 400 V DC (when using 8966; upper limit voltage that can be applied between input terminals without damage)
Max. rated voltage to earth 300 V AC/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 to 5 MHz (-3 dB, when using 8966)
Time axis (MEMORY operation) 5 µs to 5 min/div; 26 ranges; time axis resolution: 100 points/div; time axis expansion: 3 stages from ×2 to ×10; compression: 13 stages from 1/2 to 1/20,000
Measurement functions Memory (high-speed recording), FFT
Memory capacity 16 MW/ch (fixed), total of 864 MW installed 16 MW/ch (fixed), total of 256 MW installed
Removable storage USB memory stick (USB 2.0)
Display None (1 digital DVI terminal per block, 800 × 600 dots) None (1 digital DVI terminal, 800 × 600 dots)
External interfaces [LAN] 100Base-TX (DHCP and DNS support, FTP server, HTTP server)
[USB] USB 2.0 Series A receptacle × 2 (mouse operation)
Power supply 100 to 240 V AC, 50/60 Hz (250 VA max.) 100 to 240 V AC, 50/60 Hz (120 VA max.)
Dimensions and mass 426 mm (16.77 in) W × 177 mm (6.97 in) H × 505 mm (19.88 in) D, 10.8 kg (381.0 oz) (main unit only) 350 mm (13.78 in) W × 160 mm (6.30 in) H × 320 mm (12.60 in) D, 5.4 kg (190.5 oz) (main unit only)
Accessories Instruction manual × 1, Application disk (Wave viewer Wv, Communication commands table) × 1, Power cord × 1

LabVIEW And MATLAB Support

Compatible models LabVIEW MATLAB script
MR8740 Available Available
MR8741 Available Available