BK300 Precision Internal AC Resistance Tester for Rechargeable Batteries, 1–3999 mΩ, AC 1 kHz
The BK300 is engineered to provide precise internal resistance measurements for all types of rechargeable batteries, supporting research and development as well as quality control processes. It is capable of testing batteries with voltages up to 19.99 V, making it suitable for single cells and battery packs. This instrument is particularly useful for evaluating battery health and performance parameters critical to safety and compliance testing such as UN38.3 initial characteristics.
The device employs a 1000 Hz sine wave AC current of about 10 mA to measure internal resistance accurately without damaging the battery. It features two selectable voltage measurement ranges (0–4.999 V and 5–19.99 V) with high resolution and accuracy. Internal resistance measurement is divided into two ranges: 1 mΩ to 299.9 mΩ with 0.1 mΩ resolution and 300 mΩ to 3999 mΩ with 1 mΩ resolution. A built-in 50 mΩ standard precision resistor allows users to calibrate the instrument to maintain measurement accuracy.
주요 기능
- AC internal resistance testing at 1000 Hz sine wave with approximately 10 mA current.
- Measures battery voltage from 0 to 19.99 V with two selectable ranges and high accuracy.
- Internal resistance measurement ranges: 1–299.9 mΩ (0.1 mΩ resolution) and 300–3999 mΩ (1 mΩ resolution).
- Built-in 50 mΩ standard resistor for on-site calibration and accuracy verification.
- Microprocessor-controlled upper and lower limit settings for resistance and voltage with audible and visual alarms.
- Includes cylinder battery holder and cable for convenient testing of cylindrical cells and battery packs.
- Compatible with AC power supply of 110/220 V, 50/60 Hz with low power dissipation.
기술 사양
| 매개변수 | 사양 |
|---|---|
| AC Test Frequency | 1000 Hz sine wave |
| AC Test Current | Approximately 10 mA |
| Voltage Measurement Ranges | 0–4.999 V (±2 mV + 0.5% FS, 1 mV resolution), 5–19.99 V (±20 mV + 0.5% FS, 10 mV resolution) |
| Internal Resistance Ranges | 1–299.9 mΩ (±0.5% FS + 0.5 mΩ, 0.1 mΩ resolution), 300–3999 mΩ (±0.5% FS + 5 mΩ, 1 mΩ resolution) |
| Calibration Standard | Built-in 50 mΩ precision resistor |
| Power Supply | AC 110/220 V, 50/60 Hz (Includes 60 W transformer for 110 V use) |
| Power Dissipation | Less than 10 W |
| Included Accessories | Cylinder battery holder and cable for cylindrical cells and battery packs |
대표적인 적용 분야
The BK300 is suited for internal resistance testing of conventional single batteries and battery groups, including cylindrical cells and battery packs. It is widely used in battery R&D labs, quality control departments, and safety testing facilities to assess battery condition, performance consistency, and compliance with regulatory standards.
구성 및 작동 안내
The instrument includes a cylinder battery holder and cable to facilitate easy connection to cylindrical cells and battery packs. Users should perform calibration using the built-in 50 mΩ resistor regularly to ensure measurement accuracy. The device features microprocessor-controlled alarms for voltage and resistance limits, providing audible and visual alerts to prevent out-of-range conditions. For operation on 110 V power, the supplied 60 W transformer must be used. Proper handling and connection procedures should be followed to avoid damage to the battery or instrument.
