根(gen)(gen)據測(ce)溫(wen)范(fan)圍選(xuan)(xuan)擇(ze)：500℃以(yi)(yi)上一(yi)般(ban)選(xuan)(xuan)擇(ze)熱(re)電(dian)偶，500℃以(yi)(yi)下一(yi)般(ban)選(xuan)(xuan)擇(ze)熱(re)電(dian)阻(zu)(zu)； 根(gen)(gen)據測(ce)量精(jing)度選(xuan)(xuan)擇(ze)：對精(jing)度要求(qiu)較高選(xuan)(xuan)擇(ze)熱(re)電(dian)阻(zu)(zu)，對精(jing)度要求(qiu)不(bu)高選(xuan)(xuan)擇(ze)熱(re)電(dian)偶； 根(gen)(gen)據測(ce)量范(fan)圍選(xuan)(xuan)擇(ze)：熱(re)電(dian)偶所測(ce)量的(de)(de)一(yi)般(ban)指“點”溫(wen)，熱(re)電(dian)阻(zu)(zu)所測(ce)量的(de)(de)一(yi)般(ban)指空(kong)間平均(jun)溫(wen)度；2線(xian)(xian)(xian)(xian)制(zhi)(zhi)熱(re)電(dian)阻(zu)(zu)配線(xian)(xian)(xian)(xian)簡(jian)單，但要帶進引線(xian)(xian)(xian)(xian)電(dian)阻(zu)(zu)的(de)(de)附加誤差(cha)。因此(ci)不(bu)適用制(zhi)(zhi)造*精(jing)度的(de)(de)熱(re)電(dian)阻(zu)(zu)，且(qie)在(zai)使用時(shi)引線(xian)(xian)(xian)(xian)及導(dao)線(xian)(xian)(xian)(xian)都不(bu)宜過(guo)長。線(xian)(xian)(xian)(xian)制(zhi)(zhi)可以(yi)(yi)消(xiao)(xiao)除(chu)(chu)引線(xian)(xian)(xian)(xian)電(dian)阻(zu)(zu)的(de)(de)影(ying)響，測(ce)量精(jing)度高于2線(xian)(xian)(xian)(xian)制(zhi)(zhi)。作為過(guo)程檢測(ce)元(yuan)件線(xian)(xian)(xian)(xian)制(zhi)(zhi)不(bu)僅可以(yi)(yi)消(xiao)(xiao)除(chu)(chu)引線(xian)(xian)(xian)(xian)電(dian)阻(zu)(zu)的(de)(de)影(ying)響，而且(qie)在(zai)連(lian)接導(dao)線(xian)(xian)(xian)(xian)阻(zu)(zu)值相同(tong)時(shi)，還可以(yi)(yi)消(xiao)(xiao)除(chu)(chu)該電(dian)阻(zu)(zu)的(de)(de)影(ying)響。在(zai)高精(jing)度測(ce)量時(shi)，要采用4線(xian)(xian)(xian)(xian)制(zhi)(zhi)。