Multi-channel switches are designed to facilitate the measurement of multiple batteries by switching between them. Used in conjunction with other Hioki products, such as the DM7276 DC voltmeter and the BT4560 battery impedance meter, these new products can measure parameters such as open-circuit voltage and internal impedance (internal resistance) for various batteries. Because the SW9001/SW9002 multiplexer module, which is inserted into the main frame of the SW1001/SW1002 switch, features circuitry specifically designed for impedance measurement, the equipment can deliver highly reliable multi-channel measurements with low measurement error.
SW1001 / SW1002 Features
1. Highly reliable multi-channel measurement
The SW1001/SW1002 is a multiplexer (multichannel switch) designed to measure multiple batteries by switching between them. Used in combination with one or more battery measuring instruments, it can perform multichannel measurements.
The SW1001 has slots for 3 multiplexer modules, while the SW1002 has slots for 12 modules, allowing customers to choose the number of modules based on the number of channels they plan to measure. The SW1002 can measure battery voltage for up to 264 channels and internal impedance for up to 132 channels.
In addition, the multiplexer modules have circuits specifically designed for impedance measurement, allowing the products to offer highly reliable multi-channel measurements with a low measured value error.
2. Ability to connect up to 2 battery measuring instruments with different measurement functionality
Multiplexers can be used to create a single system for measuring multiple parameters, such as open-circuit voltage, internal impedance, and envelope potential, by sequentially switching between two measuring instruments. Because accuracy is guaranteed when the SW1001/SW1002 is combined with Hioki battery measuring instruments, the new products can be used with confidence and peace of mind.
3. Built-in fuse to protect each channel from a short circuit
Each channel incorporates a fuse to protect against the possibility of an internal short circuit in the multiplexer during battery measurement. This feature prevents short circuits involving a large number of battery cells.

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