准备一个能正常使用的万能表,将汽车电瓶准备好,具体步骤如下:
1、串联电表之前需要先将电表设置好,首先是选择类型。旋钮旋至直流电流档位,标志是上面一横,中间三点,下面一个大写的A。此表是不需要选择量程的,普通万用表要选择流10A,或者直流20A。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/caef76094b36acaf3e83f5806cd98d1001e99c6e?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
2、然后选择表笔位置,黑表笔始终是在COM位置,红表笔选择直流10A或者直流20A。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/30adcbef76094b36a3f17891b3cc7cd98d109d6e?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
3、最后连接到蓄电池上,先关闭钥匙和车上的全部用电器,遥控上锁。把红表笔接蓄电池电缆上,固定牢固。松开负极电缆螺丝,黑表笔接电池端,然后慢慢移开负极电缆。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/b3b7d0a20cf431adc7b120455b36acaf2edd986e?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
4、用万用表按照正确连接方法把电表串连在蓄电池和负极电缆之间就可以了。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/d1a20cf431adcbef7b571d7abcaf2edda3cc9f6e?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)