如圖所示為XTR105遠(yuǎn)程RTDs探測三線連接電路。電阻精度為1%。Q2可選擇,當(dāng)任一RTD端開路時,輸出電流隨之變化。如當(dāng)1端開路時,Io=2.2mA;當(dāng)2端開路時,Io=27mA;當(dāng)3端開路時,Io=2.2mA。
XTR105遠(yuǎn)程RTDs探測三線連接電路圖 src="/21ic_image/21icimage/200903/1dff65f4630a1d6298135642b34668e8.jpg" width=600 border=0>