BVIR: Portable and Accurate ACIR/Voltage meter

Neware BVIR is a high-precision battery internal resistance tester, is specially designed for rechargeable battery(including lead acid, Ni-Cd, Ni-MH, Li-ion, Li-polymer battery).

Neware BVIR is easy to operate, reliable and highly cost-effective.

The alternating r.m.s. voltage Ua shall be measured while applying an alternating r.m.s. current Ia at the frequency of 1.0kHz±0.1kHz to the battery for a period of 1s to 5s. The internal a.c. resistance Rac is given by Rac = Ua / Ia.

Above testing method is indicated in many IEC testing manuals applied to various kinds of battery.

Newell BVIR is portable and it has a large capacity lithium-ion battery embedded. Moreover, an USB port is provided to charge and delivery testing results.

Technical specifications

Testing method: 4 probe method(Kelvin connection)

Data storage: up to 100,000 items

Voltage measuring range: 0-20V

Voltage accuracy: ±0.1% FS

Internal resitance measuring range: 200mΩ-2000mΩ

A/D mode: SAR 12-bit succesive comparsison method

Testing frequency: 1KHz

Sampling frequency: 1000 times/s

Calibration requirements

Zero point calibration: calibrate voltage and internal resistance at the same time

Voltage calibration: use outer DC 3V-20V as a standard referene to calibrate voltage

Internal resistance calibration: use 10mΩ-2000mΩ precision resistance to calibrate internal resistance

VBIR shipped with matching probes, shown as in the following picture.

BVIR-Probes

And you can read this article for more information of the buttons and screen illustration of BVIR: button-explanation-of-bvir

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