http://www.63504668.com http://www.yqybzhan.com http://www.jsbyb.com http://www.shwjzdh.com http://www.oneyb.com http://www.ttyssy.com http://www.591718.com http://www.shuangxu.net http://www.shanghaiyiqi.com http://www.shuangxudianzi.com http://www.yqybjyw.com http://www.63504668.cn http://www.shanghaiybw.com http://www.591718.cn http://www.591718.net http://www.591718.com.cn http://99999sx.com http://www.zctty.com WRN2-430,WRE-430,WRE2-430,WRN-420,WRN-420A.WRN2-420,WRE-420,WRE-420A,WRE2-420,WRN-430,WRN2-430,WRE-430,WRE2-430,WRN-520,WRN2-520,WRE-520,,WRE2-520,WRN-530,WRN2-530,WRE-530,WRE2-530,WRN-621,WRN-621A,WRN2-621,WRE-621,WRE-621A,WRE2-621,WRN-631,WRN2-631,WRE-631,WRE2-631.WRN-620,WRN-621,WRN-620A, WRN-621A,WRN2-620, WRN2-621,WRE-621,WRE-621A,WRE2-621,WRN-631,WRN2-631,WRE-631,WRE2-631,WRN-624,WRN-625,WRE-624,WRE-625,WRN-001,WRE-001,WRN-001,WRE-001,WRN-010,WRE-010,WRR-010,WRR2-010,WRP-010,WRP2-010,WRP-100,WSSX-412,WSSX-402電接點(diǎn)雙金屬溫度計(jì),WSSX-481,WSSX-411,WSSX-401,WSSX-480,WSSX-410,WSSX-400,WSSX-486B,WSSX-416BLJ2P-15G/221SR551-DN2 DW 3A220-08WZPK2-135SA Q24D2H-8ST-656SR351-RM DLTESTO 540WZPN430SBWR-2180/240DSR550-EN1 DK HFKPT1-20-35WRNR-01QE-03KR-1WZP2-631BTI-120ELFMOBHG-100KAWA6291-2JWK JWK-A5PBYB43010TL-N5MF1WZPK2-275SAWRNT2-31 K23JSD-L15AC5010-06DWZPK-364SPC57TES1310HFKLT2-NSR561-CM DWZPK-304SWRE-430-FTES1311SZG20BAR-910BR4000SZJ4YB54060PHB3E3JK-R4Y2WZPK2-505SAYB1731B(5A)HTC-1 SR551-RN2 DLPR18-8DPSR540-ES2 RSR361-DM DKTT-110WZPK335UHS5661 | WRE-002熱電偶感溫元件/WRE-002/WRE002的詳細(xì)資料: |
溫度測(cè)量范圍和允許誤差 熱電偶類別 | 代號(hào) | 分度號(hào) | 測(cè)溫范圍 ℃ | 允許誤差Δt ℃ | 鉑銠30-鉑銠6 | WRR | B | 0~1800 | ±1.5℃或±0.25%t | 鉑銠10-鉑 | WRP | S | 0~1600 | ±1.5℃或±0.25%t | 鎳鉻-鎳硅 | WRN | K | 0~1300 | ±2.5℃或±0.75%t | 鎳鉻-銅鎳 | WRE | E | 0~800 | ±2.5℃或±0.75%t |
● 熱響應(yīng)時(shí)間 在溫度出現(xiàn)階躍變化時(shí),熱電偶的輸出變化至相當(dāng)于該變化的50%,所需要的時(shí)間稱為熱響應(yīng)時(shí)間,用T0.5表示。 ● 熱電偶公稱壓力 一般是指在室溫情況下保護(hù)管所能承受的靜態(tài)外壓面不破裂。實(shí)際上,容許工作壓力不僅與保護(hù)管材料、直徑壁厚有關(guān),還與其結(jié)構(gòu)形式,安裝方法、置入深度以及被測(cè)介質(zhì)的流速和種類等有關(guān)。 ● 熱電偶小置入深度 應(yīng)不小于其保護(hù)管外徑的8~10倍(特殊產(chǎn)品例外)。 ● 熱電偶絕緣電阻(常溫) 常溫絕緣電阻的試驗(yàn)電壓為直流500V±50V,測(cè)量常溫絕緣電阻的大氣條件為溫度15~35℃,相對(duì)濕度45%,大氣壓力86~106kPa a.對(duì)于長(zhǎng)度>1米的熱電偶,常溫絕緣電阻值與其長(zhǎng)度的乘積應(yīng)不小于 100 MΩ·m 即:Rr·L≥100 MΩ·m L>1m(式中:L-熱電偶的長(zhǎng)度.m) b.對(duì)于長(zhǎng)度≤1米的熱電偶,常溫絕緣電阻值應(yīng)不小于100 MΩ ● 上限溫度絕緣電阻 熱電偶的上限溫度絕緣電阻應(yīng)不小于下表規(guī)定: 上限溫度tm ℃ | 試驗(yàn)溫度t ℃ | 電阻值 | 100≤tm<300 | t=tm | 10 | 300≤tm<500 | t=tm | 2 | 500≤tm<850 | t=tm | 0.5 | 850≤tm<1000 | t=tm | 0.08 | 1000≤tm<1300 | t=tm | 0.02 | tm>1300 | t=1300 | 0.02 |
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