Verification Device For Battery Internal Resistance Tester DNB-1
According to the calibration specifications of JJF1620-2017 Battery Internal Resistance Tester, our company has developed a DNB-1 battery internal resistance calibration device, which is mainly used for the calibration of battery internal resistance testers using the principle of AC injection method.
The instrument adopts a passive structure, with a total of 7 ranges, each with 10 resistors (excluding the 1KΩ range), with an accuracy level of 0.05, which can meet the requirements of the battery internal resistance tester for verification points.
The instrument adopts a structure that combines physical resistance and analog resistance, which has the characteristics of wide range, small volume, and portable belt compared to conventional instruments.
Environmental conditions | ||
Temperature | 5 ℃ -40 ℃ | |
Relative humidity | <80% (25 ℃) | |
Altitude | ≤ 1500 meters | |
External interference | No vibration, strong electricity, or magnetic field interference. | |
Main technical parameters | ||
Resistance output range | 1mΩ~4.1KΩ | |
Resistance range and accuracy (frequency 1Khz) | Range (plate) | Accuracy |
×1KΩ | 0.05% | |
×100Ω | 0.05% | |
×10Ω | 0.05% | |
×1Ω | 0.05% | |
×100mΩ | 0.05% | |
×10mΩ | 0.05% | |
×1mΩ | 0.1%±2uΩ |
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