MEMORY HiCORDER MR8741
Single-device Solution for Waveform Recording and Generation, High-speed 16-channel/Isolated Multi-channel System Recorders (rack-mounted)
The MR8741 is rack-mountable data acquisition system that delivers high-speed, multi-channel measurements over maximum of 16 channels. The MR8990 DVM module is a 2-channel input unit for the 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.
Use with the Arbitrary Waveform Generator Unit U8793 to create a function generator, arbitrary waveform generator, and waveform measurement in a single device.
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 (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)
- 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 (*1)
- *1: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)
| MR8741 | Max. 16ch, 256MW memory, main unit only |
|---|
Basic specifications
| Max. Number of channels | 16 ch analog + 16 ch logic, or 10 ch analog + 64 ch logic (when used with built-in logic input + plug-in logic unit 8973 × 3) |
|---|---|
| Number of slots | 8 slots (Max. 8) [Limitation on number of slots] cannot use Current Unit 8971 When using the Logic Unit 8973: Max. 3 |
| Number of logic channels | 16 ch 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 [Limitation on using built-in logic input] (with logic measurement ON) • Measurement resolution on slots 1 and 2 is limited up to 12 bits • Cannot use Frequency Unit 8970 on slots 1 and 2 |
| 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, Recorder |
| Memory capacity | 16 MW/ch (fixed), total of 256 MW installed |
| Removable storage | USB memory stick (USB 2.0) |
| Display | 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 (120 VA max.) |
| Dimensions and mass | 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) |
| Included 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 | ||||
Storage media (1)
Use only CF Cards or USB drives sold by HIOKI. Compatibility and performance are not guaranteed for CF cards/USB memory sticks made by other manufacturers. You may be unable to read from or save data to such cards.
16 GB, Long-life, High-reliability SLC Flash Memory
Input modules (10)
*Input cords are not included. Please purchase them separately.
*The 8971 not compatible with MR8741
Output modules (3)
* Input cords not included. Please purchase separately.
Output cable (2)
* Please contact your local HIOKI distributor for connectors that support Model MR8791.
Max. rated voltage to earth: 33 Vrms AC or 70 V DC, SMB to alligator clip, 1.5 m (4.92 ft) length
Max. rated voltage to earth: 33 Vrms AC or 70 V DC, SMB to BNC terminal, 1.5 m (4.92 ft) length
Input cable (A) (4)
*Voltage is limited to the specifications of the input modules in use
• 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
Red/black set attaches to the ends of the Connection Cord L9790
Red/black set attaches to the ends of the Connection Cord L9790
Red/black set attaches to the ends of the Connection Cord L9790
Input cable (B) (3)
*Voltage is limited to the specifications of the input modules in use
•φ 5.0 mm (0.20 in) dia
•Cable allows for up to 600 V input
•1.8 m (5.91 ft) length
•Includes detachable large alligator clips
•φ 5.0 mm (0.20 in) dia.
•Cable allows for up to 300 V input
•1.7 m (5.58 ft) length
•Small alligator clip
Attaches to the tip of the banana plug cable, Red/Black: 1 each, 185 mm (7.28 in.) length, CAT II 1000 V
Input cord (C) (2)
* This probe does not expand the maximum rated voltage above ground of an isolated input.
Input cord (D) (2)
* Voltage to ground is within this product’s specifications, separate power source is also required.
Custom cable (0)
*For P9000. Inquire with your Hioki distributor.
(1) Bus powered USB cable
(2) USB(A)- Micro B cable
(3) 3-prong cable
Input cable (E) (2)
*Voltage to ground is within this product's specifications. Separate power source is also required.
100 to 240V AC
Input cable (F) (6)
* Voltage input via banana terminals limited by the voltage specifications of the respective input unit.
Expands the length of L4930/4940, 1.5 m (4.92 ft) length
Attaches to the tip of the L4930/4940, CAT IV 600 V, CAT III 1000 V
Attaches to the tip of the L4930/4940, CAT III 600 V
Attaches to the tip of the L4930/4940, CAT III 1000 V
Banana plug - banana plug, 1.5 m (4.92 ft) length, red/black each 1
Attaches to the tip of the banana plug cable, Red/Black: 1 each, 185 mm (7.28 in.) length, CAT II 1000 V
Input cable (G) (1)
* For the MR8990 *Voltage is limited to the specifications of the input modules in use
70 cm (2.30ft) length, detachable large alligator clips or needle tips are bundled, CAT IV 600V, CAT III 1000V
Non-contact voltage measurement (0)
Other options for input (4)
Cord has insulated BNC connectors at both ends, 1.6 m (5.25 ft) length
Cord has metallic BNC connectors at both ends, use at metallic terminal, 1.5 m (4.92 ft) length
Receiving side banana (female), output BNC (male)
To connect the CT6841-6846, CT6865/63/62, 9709, 9272-10 to the 8971/40/51, 38 cm (14.96 in) length
Temperature sensor (0)
*For reference only. Please purchase locally.
Thermocouple
Logic signal measurement (4)
* Only the small terminal types can be used. * The 9323 is not required for the small-terminal types 9327, 9320-01, 9321-01 and MR9321-01.
Up to 200 A (High precision) (6)
Separate power supply (CT955x) is required in order to use a high-precision current sensor.
Only sensors with ME15W (12-pin) terminals can be connected to the CT955x.
The separately available CONVERSION CABLE CT9900 is required in order to use a sensor with PL23 (10-pin) terminal.
Up to 1000 A (High precision) (7)
Separate power supply (CT955x) is required in order to use a high-precision current sensor.
Only sensors with ME15W (12-pin) terminals can be connected to the CT955x.
The separately available CONVERSION CABLE CT9900 is required in order to use a sensor with PL23 (10-pin) terminal.
PL23 (10-pin) - ME15W (12-pin) conversion (1)
Convert PL23 (10-pin) terminal to ME15W (12-pin) terminal
POWER SUPPLY for Current Sensors (4)
*A separate power supply (CT955x) is required in order to use a high-precision current sensor.
*Only sensors with ME15W (12-pin) terminals (-05 type) can be connected to the CT955x. *The separately available Conversion Cable CT9900 is required in order to use a sensor with PL23 (10-pin) terminal.
Cord has insulated BNC connectors at both ends, 1.6 m (5.25 ft) length
Directly connect currents sensors (3)
ME15W (12-pin) - PL23 (10-pin) conversion
*The separately available Conversion Cable CT9901 is required in order to use a high-precision current sensor equipped with a ME15W (12-pin) terminal (-05 type) with the Current Unit 8971 (which is designed for use with the MR8847, MR8827, and MR8740).
*While the CT955x is not required in order to use a sensor equipped with a PL23 (10-pin) terminal with the 8971 or 8940, the Conversion Cable 9318 (which comes with the 8971) is required for that setup.
ME15W (12 pin) to PL23 (10 pin) connector
To connect the CT6841-6846, CT6865/63/62, 9709, 9272-10 to the 8971/40/51, 38 cm (14.96 in) length
Precautions when connecting a high-precision current sensor to a Memory HiCorder (0)
Connecting to the MR8847A / MR8827 / MR8740
• High-precision current sensor (ME15W) + CT9901 + 9318 → CURRENT UNIT 8971
• High-precision current sensor (ME15W) + CT955x + BNC cable → except CURRENT UNIT 8971
• High-precision current sensor (PL23) + 9318 → CURRENT UNIT 8971
• High-precision current sensor (PL23) + CT9900 + CT955x + BNC cable → except CURRENT UNIT 8971
Connecting to the MR8741
• High-precision current sensor (ME15W) + CT955x + BNC cable → except CURRENT UNIT 8971
• High-precision current sensor (PL23) + CT9900 + CT955x + BNC cable → except CURRENT UNIT 8971
Note: CURRENT UNIT 8971 is not compatible with the MR8741
10 mA class to 500 A (High speed) (4)
Power supply (2)
* Necessary for using the 3270 seies current probes
100 A to 2000 A (Medium speed) (9)
The CM7290 (available separately) is required in order to use these current sensors.
Connect to BNC terminal, 1.5 m (4.92 ft) length
PC software (4)
Straight Ethernet cable, supplied with straight-to-cross conversion adapter, 5 m (16.4 ft.)
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MEMORY HiCORDER MR8741
Test Report
Japanese
English Ver.00 -
MEMORY HiCORDER MR8740,MR8741
Instruction Manual
English
Ver.10
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MEMORY HiCORDER MR8741
Ver.05
