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Method for measuring temperature probe of commercial water storage type electric water heater two
2017-1-9 16:20:36

温度传感器电阻检测

1. 经由过程主断路器和电源断路开关割断热水器主电源。

2. 拔出CCB控制板上的J2插头。

3. 利用电阻表:将电阻值量程设定在30,000 ohms以上。

4. 用电阻表的接线柱碰触J2插头尾端的两个插脚(黑线)之间,如下图所示。将所读出的电阻值(ohms)与下表中的阻值相比较。温度探头一般情况下不容易破坏,只要在以下状况下才需改换:

· 电阻检测成果显现触点“断开”(无穷阻值)或“短路”(无电阻)。

· 读取的电阻值与下表所列值相差25%以上

blob.png

温度传感器电阻值表blob.png

 温度传感器直流电压检查

1. 经由过程主断路器和电源断路开关割断热水器主电源。

2. 肯定CCB电路板J1插座输入电压准确,而且已连接地线。

3. 拔出CCB电路板J2插头(注:当J2插头被拔出时,客户辨认模块的显示器会显现“温度传感器毛病”的提醒信息——检查终了后割断电源,从头插入J2插头)利用直流电压表检查J2插头上的2,3插脚间的电压,见下图“温度传感器直流电压”所示。

 blob.png

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