A20B-1003-0180/01A
問：請問EM231模塊至熱電偶傳感器距離是不是有長度限制，是多少，如果距離超過的話，有什么好的解決辦法呢？
答：個(gè)人認(rèn)為回路阻抗和干擾情況是決定傳輸距離的決定因素，理論上到變送器的距離為100米，是在回路阻抗小于100歐，干擾不嚴(yán)重的場合。
熱電偶距離無法滿足要求的話，先增加變送器，4~20mA信號足以滿足你的距離要求了，再不行就將200與現(xiàn)場靠近些
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