Hioki M7100 Offers

Features

• For 600 V to 1500 V battery packs
• 15ch, voltage and temperature (thermocouple) measurement
• High-precision measurement of cell voltage
• The M7100 cannot perform measurement by itself. A separately sold Data Logger LR8101 or LR8102 is required.
• High-speed data capture, output of data for all cells at an interval as short as 5 ms, HIL support (*1)
  *The functionality is exclusive to the Data Logger LR8102, which has a UDP output.

Ideal for Capturing Data from High-Voltage Battery Pack Cells

Expandability

Evaluating high-voltage battery systems. Future-proof your system by ensuring you can accommodate more cells tomorrow.

• The M7100 can measure voltage and temperature across 15 channels at a sampling rate of 10 ms.
• If no more than 8 channels are used, it can make measurements at a sampling rate of up to 5 ms.
• Up to 10 measurement modules can be connected to a single data logger, allowing the number of channels to be increased to 150 ch.
• A JIS and EIA-standard 19-inch rack can accommodate one logger and 6 measurement modules for a total of 90 channels per shelf.
• Furthermore, if up to 10 of the LR8102 advanced models are connected with optical cabling, their sampling can be synchronized, allowing the number of measurement channels to be increased to a maximum of 1500 ch.
• Easy expandability ensures you’ll be ready when you wish to evaluate future high-voltage systems that have even more battery cells.

Insulation

Assuring safety when testing cell voltages of a 1500 V battery pack: Achievement unlocked.

• Terminal-to-ground voltage: 1500 V DC (CAT II) Insulation
• EN IEC 61010 Safety standard-compliant

Although the voltage of individual cells of a battery may be low at about 4 V, safely measuring the voltage at each cell of an 800 V battery pack, a type that is already being commercialized, requires an instrument with a maximum rated terminal-to-ground voltage of at least 800 V DC.

Since the M7100 has a maximum rated terminal-to-ground voltage of 1500 V, it can accommodate testing of 800 V batteries with an ample margin of safety.

It can also be used to measure cell voltage and temperature of next-generation battery packs that exceed 800 V and power storage systems such as energy storage systems (ESSs) that exceed 1000 V.

High Speed

Turbocharged data transfers at an interval as short as 5 ms mean you can output data for all cells to an HIL system in real time (when using only the LR8102)

• The logger can continuously transfer data at high speed to an upstream system using UDP communication (*1).
• Modules sample data at high speed at a rate of up to 5 ms (*2) and output it immediately.
• Since the data logger continuously acquires live voltage data for measured cells at an interval as short as 5 ms, data can be used in real-time simulation by an HIL system.
• In addition, this capability allows comprehensive analysis of charge/discharge characteristics by observing the responsiveness of total voltage as measured by the M7103 Power Measurement Module and individual cells’ voltage data.

*1:UPD communication functionality is exclusive to the Data Logger LR8102.

*2:The 5 ms sampling rate is available when using 1 to 8 measurement channels. (voltage only)

Measurement Performance

Measure battery cell voltage with confidence

• Leakage current flow to the data logger can be minimized since measurement modules are engineered with a signal input resistance of 100 MΩ or greater.
• Furthermore, the module provides a 6 V range for lithium-ion batteries and a 2 V range for fuel cells, and measures cell voltage with a high degree of precision thanks to its 18-bit A/D resolution.