GBM-3300 Guwei Battery Internal Resistance Tester

Guwei Electronics has launched a new series of desktop battery internal resistance testers GBM-3000 series, which uses AC 1kHz as the test signal to measure battery voltage and internal resistance at 1000V (GBM-3100H)/300V (GBM-3300) and 80V (GBM-3080). This series features a 3.5 "TFT LCD, 4-wire measurement method, high-resolution (6-digit voltage/5-digit resistance) measurement display capability, as well as independent GO/NOGO voltage and resistance determination, various communication interfaces, etc., to meet various types of battery measurements, such as single cells, battery units to final products (batteries), etc., in order to facilitate accurate measurements for users at various stages of production.
The GBM-3000 series provides the function of measuring open circuit voltage and resistance for various types of batteries. The accuracy of voltage measurement is as high as ± (0.01% reading+5 bits), and the measurement resolution can reach 10 μ V (at 8V). The accuracy of resistance measurement can reach ± (0.5% reading+5 bits), and the measurement resolution can reach 0.1 μ Ω (3m Ω), which is particularly suitable for sorting battery cell measurements. This is to achieve better output balance in subsequent series and parallel connections. At the same time, in order to facilitate users to quickly and clearly interpret measurement results, the GBM-3000 series performs HI/LO measurements based on voltage and resistance, and can be switched to a simple (large digital display) mode to meet the requirements of testing accuracy, clarity, and ease of reading, which can improve inspection efficiency.
In addition to excellent measurement capabilities, the GBM-3000 series also offers many features to ensure effectiveness and convenience. In order to ensure effectiveness, the contact state detection function of the test lead (probe) effectively prompts the user whether the test lead (probe) is in good contact with the DUT to ensure the validity of the measured values. In terms of convenience, the GBM-3000 series offers two data storage methods (up to 10000 measurement values). General storage only stores measured voltage and resistance values; Statistical storage has relevant parameters for statistical analysis (Cp/Ckp/Mean/MAX/MIN...). Users can first store the data during the measurement process in the internal memory, and then transfer the data to the computer for subsequent analysis through USB, without being limited to the connection with the computer.
In addition, for the transmission and storage of measurement results, the GBM-3000 series provides RS-232C/USB devices (virtual COM) for programming and retrieval. Handler is used for external trigger control through PLC. All interfaces are standard equipment, which not only saves instrument costs but also meets the requirements of using different automatic measurement systems.