High-Precision Automatic Calibration Unit

The High-Precision Automatic Calibration Unit enables one-click, multi-channel automatic calibration of voltage and current for the battery charge-discharge test system with high efficiency. It generates customized calibration reports to archive calibration data and ensure traceability.

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详细介绍

The High-Precision Automatic Calibration Unit is designed for fast and accurate calibration of battery charge-discharge testing equipment. It uses high-precision measurement instrumentation to automatically calibrate voltage and current channels across a wide operating range, helping maintain measurement accuracy and consistency throughout battery testing operations.

The system supports voltage calibration from 0V to 2000V and current calibration from 0A to 1500A. It can automatically match the calibration range of the connected equipment and complete calibration of each channel in ≤2 minutes, significantly reducing manual calibration time.

系统功能

Utilizes ultra-high precision instrumentation to ensure calibration accuracy

Supports current calibration from OA to 1500A, with automatic matching of equipment ranges

Features a high degree of automation, enabling one-click automatic calibration with a cycle time of s2 mins/CH

Allows for customized calibration plans, automatically generates reports, and ensures full calibration traceability

关键系统参数

Parameters
Calibration Range	Voltage: OV to 2000V Current: OA to 1500A
Calibration Time per Channel	≤2 mins /CH
Digital Multimeter	6.5 digital DMM from Top-tier International Brand
Calibration Accuracy	0.01% F.S (Hall Sensor or Current Shunt)

Functions
Automatic Calibration	One-click automatic calibration with report generation.
Automatic Verification	One-click automatic verification with report generation
Manual Calibration	Select the calibration point (Voltage, Current) manually
Manual Verification	Select the verification point (Voltage, Current) manually
Customized Report	Customized Calibration Configuration with Automatic Deviation Analysis

常见问题

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电池过压

电池电压超过电压上限，确认时间 0.2 秒

使用万用表测量实际电池电压，并与 BTS 显示的电压进行比较，检查采样值是否一致。.
如果采样值和实际值不相等，则通过调换相邻通道的采样线来确认问题出在直流板还是线路上。如果布线有问题，请检查电压采样线的连接是否不正确、松动或不良。.
如果采样值和实际值相等，则检查上位机步进设置是否合理，并确定电池过压是在步进运行时发生还是在步进过程中的某个特定点发生。.
检查相应的电池是否有明显的肿胀、损坏或其他异常。如果有问题，请采取必要的安全措施。.
如果电池和电压采样线正常，则确认直流板故障并更换。.

电池欠压

电池电压低于电压下限，确认时间 0.2 秒

使用万用表测量实际电池电压，并与 BTS 显示的电压进行比较，检查采样值是否一致。.
如果采样值和实际值不相等，则通过调换相邻通道的采样线来确认问题出在直流板还是线路上。如果布线有问题，请检查电压采样线的连接是否不正确、松动或不良。.
如果采样值和实际值相等，则检查上位机步进设置是否合理，并确定电池欠压是在步进运行时发生还是在步进过程中的某个特定点发生。.
检查相应的电池是否有明显的肿胀、损坏或其他异常。如果有问题，请采取必要的安全措施。.
如果电池和电压采样线正常，则确认直流板故障并更换。.

通信故障

模块 6S 未收到上位机数据，切换至故障状态。当模块从上位机接收到数据时，故障自动清除。.

检查模块和中间计算机是否处于正常通电状态。.
检查模块与中间计算机之间的 CAN 连接是否正常。.
检查 CANA 拨码开关是否设置正确。.
测量 CANA 总线上 CAN H 和 CAN L 之间的匹配电阻。应为 60±5 欧姆。如果不是，则调整信号适配器板上的匹配电阻。如果总线电压正常，则检查 BTS 故障记录，以确定是哪个子通道触发了故障。使用调试软件工具检查该通道显示的总线电压是否正常。如果不正常，则可确定 DC 板的总线采样出现故障，应更换该板。.
如果上述各点都正常，则连接 CAN 盒，利用捕获的信息确定问题出在中控电脑还是下控电脑。.