The Instek GBM-3100H Battery Meter is an expanded model of the existing GBM-3000 series, providing measurement capabilities up to 1000VDC voltage which is suitable for measurement of EV and PHEV battery packs. This model is equipped with a 3.5 inch color display and has a high measurement accuracy of 0.01 percent for battery voltage and 0.5 percent accuracy for internal resistance of batteries.

The GBM3100H Battery Meter uses one kilohertz AC as the test signal and measures battery's voltage and internal resistance up to 1000 volts. This unit features a 3.5 inch TFT LCD screen, 4-wire measurement method, high-resolution of 6-digit voltage or 5-digit resistance measurement display capability, and independent GO/NOGO determination of voltage and resistance. The various communication interfaces of RS-232C, USB Device/Host, and HANDLER aid in meeting various types of battery measurements. Battery measurements can range from single cell, battery cell, and to the end product of the battery to facilitate users in achieving accurate measurements at all stages of production.

The GBM3100H Battery Meter provides excellent features for various types of batteries in measuring open circuit voltage and resistance. For voltage measurement, the accuracy is as high as plus or minus 0.01 percent of the reading and 5 digits. The measurement resolution is up to 10 microvolts at 8 volts. For resistance measurement, the accuracy reaches plus or minus 0.5 percent of the reading and 5 digits while the resolution achieves 0.1 microohms at 3 microohms. The high accuracy and resolution is suitable for the sorting of single cell measurements, which is to achieve a better output balance for the follow-up series and parallel connections. In order to facilitate users to quickly and clearly interpret the measurement results, the GBM3100H features HI/LO determination respectively based on voltage and resistance, and can be switched to the simple big numerical display mode to meet the requirements of test accuracy. This simply display mode is clear, easy-to-read, and elevates inspection efficiency and capabilities.

Other than the measurement capabilities, the GBM3100H Battery Meter also provides a number of functions to ensure effectiveness and convenience. The test lead probe contact status detection function effectively prompts users whether test lead probes and the Device Under Test (DUT) are in good contact to ensure the validity of the measured value. For added convenience, the GBM3100H provides two data storage methods for up to 10,000 lots of measurement values. The 'general storage' only stores the measured voltage and resistance values. The 'statistical storage' includes the related parameters for the statistical analysis. Users can store the data from the measurement process in the internal memory first and then transfer the data to a computer via flash drive (not included) for subsequent analysis without being limited to the connection with a computer.

For retrieving and storing measurement results via the transmission method, the GBM3100H Battery Meter provides RS-232C and USB Device/Host (virtual COM) for writing programs and retrievals. The HANDLER interface is provided for external trigger control via PLC. All interfaces are equipped as standard with the unit for the added convenience of meeting the requirement of using different automated measurement systems.