量程規(guī)格 類別 | 代號 | 分度號 | 測溫范圍℃ | 精度等級 | 允許偏差△t | 鎳鉻-鎳硅 | WRNT | K | 0-800 | I | ±1.5℃或±0.004∣t∣ | II | ±2.5℃或±0.0075∣t∣ | 鎳鉻-銅鎳 | WRET | E | 0-600 | I | ±1.5℃或±0.004∣t∣ | II | ±2.5℃或±0.0075∣t∣ | 銅-銅鎳 | WRCT | T | -40-350 | I | ±0.5℃或±0.004∣t∣ | II | ±1℃或±0.75%t | 鉑電阻 | WZPT | Pt100 | -200-500 | A級 | ±(0.15+0.002∣t∣) | B級 | ±(0.30+0.005∣t∣) | 銅電阻 | WZCT | Cu50 | -50-100 | II | ±(0.30+6.0X10-3t) |
注:“t”為感溫元件實(shí)測溫度,對于鉑電阻和銅電阻則為感溫元件實(shí)測溫度的值。 公稱壓力 一般是指在常溫下,保護(hù)管所能承受的靜態(tài)外壓而不破裂,試驗(yàn)壓力一般采用公稱壓力的1.5倍。實(shí)際上,允許工作壓力不僅與保護(hù)管材料、直徑、壁厚有關(guān),而且還與其結(jié)構(gòu)形式、安裝方法、置入深度以及被測介質(zhì)的流速、種類有關(guān)。 熱電偶絕緣電阻: 常溫絕緣電阻的試驗(yàn)電壓為直流500V。測量常溫絕緣電阻的大氣條件為:溫度15~35℃,相對濕度45%,大氣壓力86~106Kpa。 對于長度超過1米的熱電偶,它的常溫絕緣電阻值與其長度的乘積不小于100兆歐·米, 即:Rr·L≥100MΩm L>1m L-熱電偶的長度,m。 對于長度等于或不足1米的熱電偶,它的常溫絕緣電阻值應(yīng)不小于100 MΩ。 熱電阻絕緣電阻: 常溫絕緣電阻的試驗(yàn)電壓可取直流10~100V任意值,環(huán)境溫度應(yīng)在15~35℃范圍內(nèi),相對濕度應(yīng)不大于80%,常溫絕緣電阻值應(yīng)不小于100 MΩ。 WRCK-401, WRCK-421, WRCK-431,WRCK-491,WRCK-481,WRCK-402, WRCK-422, WRCK-432, WRCK-492, WRCK-482,WRCK2-421, WRCK2-431,WRCK2-422,隔爆型、本安型熱電偶WRCK2-432, WREK-501, WREK-521, WREK-531,WREK-581,WREK-591,WREK-502, WREK-522, WREK-532, WREK-582, WREK-592. WREK2-521,WREK2-531,WREK2-522, WREK2-532, WRNK-501, WRNK-521, WRNK-531,WRNK-581,WRNK-591,WRNK-502,WRNK-522,WRNK-532,WRNK-592,WRNK-582,WRNK2-521,WRNK2-531,WRNK2-522,WRNK2-532,WRCK-501,WRCK-521,WRCK-531,WRCK-591,WRCK-581,化工專用隔爆型熱電偶WRCK-502,WRCK-522,WRCK-532,WRCK-592,WRCK-582,WRCK2-521,WRCK2-531,WRCK2-522,WRCK2-532,WREK-1313,WREK-1314,WREK-1315,WREK-1316,WREK-1323,WREK-1324,WREK-1325,WREK-1326,WRNK-1313, WRNK-1314, WRNK-1315, WRNK-1316, WRNK-1323,WRNK-1324,WRNK-1325, WRNK-1326,WRFK-281A,WRFK-181A.,WRCK-281A,WRCK-181A,WREK-281A,WREK-181A,WRNK-281A,WRNK-181A,WZPM-202U,WZPM-201U,WRNM-202A,WZPM-101U,WZPM-102U,化工專用熱電偶WREM-102A,WRNM-201A,WRNM-203AWRNN-436,WRNN2-436,WRN-420B, WRN-430B, WRN2-420B, WRN2-430B, WRE-420B, WRE-430B,WRE2-420B,WRE2-430B, WRN-420C, WRN-430C, WRN2-420C, WRN2-430C, WRE-420C,WRE-430C,WRE2-420C, WRE2-430C, WRN-420D, WRN-430D, WRN2-420D, WRN2-430D, WRE-420D, WRE-430D,WRE2-420D,可動(dòng)式熱電偶WRE2-430D, WZP-420B, WZP-421B, WZP-430B, WZP-431B,WZP2-420B,WZP2-421B, WZP2-430B, WZP2-431B, WZC-420B, WZC-430B, WZP-420C,WZP-421C,WZP-430C, WZP-431C, WZP2-420C, WZP2-421C, WZP2-430C, WZP2-431C,WZC-420C,WZC-430C, WZP-420D, WZP-421D, WZP-430D, WZP-431D, WZP2-420D,WZP2-421D,WZP2-430D, WZP2-431D, WZC-420D, WZC-430D.WRR-433Q, WRNR-93UC, WRER-93UC, WRNR2-93UC, WRER2-93UC, WRNT-001,WRNT2-001,耐腐、耐磨熱電偶WRET-001, WRET2-001, WRNR-01, WRER-01, WRNR2-01,WRER2-01,WRNR-12, WRER-12, WRNR2-12, WRER2-12, WRNR-13, WRER-13, WRNR2-13.WRER2-13.WRNR-14, WRER-14, WRNR2-14, WRER2-14, WRNR-15, WRER-15,WRNR2-15,WRER2-15, WRN-15A, WRER-15A, WRNR2-15A, WRER2-15A, WRNT-31, WRET-31, WRNT2-31,WRET2-31,套管式熱電偶WRNK-841n﹡D, WRNK-842n﹡D, WREK-841n﹡D. WREK-842n﹡D,WRNK-841n﹡I, WRNK-842n﹡I, WREK-841n﹡I. WREK-842n﹡I, WREK-842n﹡I,WRN-240A, WRN2-240A, WRE-240A,WRE2-240A,WRN-640A,RN2-640A,WRE-640A,WRE2-640A, WRN-440A,RN2-440A, WRE-440A,RE2-440A,WRNK-240, WRNK2-240, WREK-240, WREK2-240, WRNK-440, WRNK2-440,WREK-440 |