熱電偶類別 | 代號(hào) | 分度號(hào) | 測(cè)量范圍 | 基本誤差限 |
鎳鉻-康銅 | WRK | E | 0-800℃ | ±0.75%t |
鎳鉻-鎳硅 | WRN | K | 0-1300℃ | ±0.75%t |
鉑銠13-鉑 | WRB | R | 0-1600℃ | ±0.25%t |
鉑銠10-鉑 | WRP | S | 0-1600℃ | ±0.25%t |
鉑銠30-鉑銠6 | WRR | B | 0-1800℃ | ±0.25%t |
注:t為感溫元件實(shí)測(cè)溫度值(℃)
熱電偶時(shí)間常數(shù)
熱惰性級(jí)別 | 時(shí)間常數(shù)(秒) | 熱惰性級(jí)別 | 時(shí)間常數(shù)(秒) |
Ⅰ | 90-180 | Ⅲ | 10-30 |
Ⅱ | 30-90 | Ⅳ | <10 |
◆熱電偶公稱壓力:一般是指在工作溫度下保護(hù)管所能承受的靜態(tài)外壓而破裂。
◆熱電偶zui小插入深度:應(yīng)不小于其保護(hù)套管外徑的8-10倍(特列產(chǎn)品例外)
◆絕緣電阻:當(dāng)周圍空氣溫度為15-35℃,相對(duì)濕度<80%時(shí)絕緣電阻≥5兆歐(電壓100V)。具有防濺式接線盒的熱電偶,當(dāng)相對(duì)溫度為93± 3℃ 時(shí),絕緣電阻≥0.5兆歐(電壓100V)
◆高溫下的絕緣電阻:熱電偶在高溫下,其熱電極(包括雙支式)與保護(hù)管以及雙支熱電極之間的絕緣電阻(按每米計(jì))應(yīng)大于下表規(guī)定的值。
規(guī)定的長(zhǎng)時(shí)間使用溫度(℃) | 試驗(yàn)溫度(℃) | 絕緣電阻值(Ω) |
≥600 | 600 | 72000 |
≥ 800 | 800 | 25000 |
≥1000 | 1000 | 5000 |
型號(hào)命名方法
熱電阻:
MWFT-1,MWFT-2,MWFT-3,WZP-120B,WZP-121B,WZP-130B,WZP-131B,WZP2-120B,WZP2-121B,WZP2-130B,WZP2-131B,WZC-120B,WZC-130B,WZP-220B,WZP-221B,
WZP-230B,WZP-231B,WZP2-220B,WZP2-221B,WZP2-230B,WZP2-231B,WZP-220ABWZP2-220AB,WZC-220B,WZC-120B,電站測(cè)溫用熱電阻WZC-130B,WZP-220B,WZP-221B,WZP-230B,WZP-231B,WZP2-220B,WZP2-221B,WZP2-230B,WZP2-231B,WZP-220AB,WZP2-220AB。WZC-220B,WZC-230B,WZC-220AB,WZP-320B,WZP-321B,WZP-330B,WZP-331B,WZP2-320B,WZP2-321B,WZP2-330B,WZP2-330B,WZC-320B,WZC-320B,WZP-420B,WZP-421B,WZP-430B,WZP-431B,WZP2-420B,WZP2-421B,WZP2-430B,WZP2-431B,WZP-42AB,WZP2-42AB,WZC-420B,WZC-430B,WZP-420B,WZP-421B,WZP-430B,WZP-430B,WZP-431B,WZP2-420B,WZP2-421B,WZP2-430B,WZP2-431B,WZP-42AB,WZP2-42AB,WZP-420B,WZC-430B,WZP-621B,WZP-621AB,WZP-631B,WZP2 -621B,WZP2 -621B,WZP2 -631B,WZP-621B,WZP-631B,WZP-621B,WZP2 -631B,WZP-621AB,WZP2-621AB,WZP-002,WZP-003,WZP-003A,WZCM-201,WZPM-201,WZPM-201,WZP-270S,WZP-26S,WZP-236SB,薄膜鉑熱電阻WZP2-236SB,WZP-1312AB,WZP2-1312AB,WZP-212AB,WZP2-212AB,WZP-3312AB,WZP2-3312AB,WZP-4312AB,WZP2-4312AB,WZP-6312AB,WZPK-103U,WZPK-104U,WZPK-105U,WZPK-106U,WZPK-106U,WZPK-204U,WZPK-205U,WZPK-206U,WZPK-303U,WZPK-304U,WZPK-305U,WZPK-306U,WZPK-403U,WZPK-404U,WZPK-405U,WZPK-406U,WZPK-503U,WZPK-504U,WZPK-505U,WZPK-506U,WZPK-133U,WZPK-134U,WZPK-135U,WZPK-136U,WZPK-233U,WZPK-234U,WZPK-235U,WZPK-236U,WZPK-333U,WZPK-334U,WZPK-335U,WZPK-336U,WZPK-433U,WZPK-434U,WZPK-435U,WZPK-436U,WZPK-533U,WZPK-534U,WZPK-535U,WZPK-536U,WZPK-123UWZPK-124U,裝配式不銹鋼接線盒鉑電阻WZPK-125U,WZPK-126U,WZPK-223U,WZPK-224U,WZPK-225U,WZPK-226U,WZPK-323U,WZPK-324U,WZPK-325U,WZPK-326U,WZPK-423U,WZPK-424U,WZPK-425U,WZPK-426U,WZPK-523U,WZPK-524U,WZPK-525U,WZPK-526U,WZPK-163U,WZPK-164U,WZPK-165U,WZPK-166U,WZPK-263U,WZPK-264U,WZPK-265U,WZPK-266U,WZPK-363U,WZPK-364U,WZPK-365U,WZPK-366U,WZPK-463U,WZPK-464U,WZPK-465U,鎧裝鉑電阻WZPK-466U,WZPK-563U,WZPK-564U,WZPK-565U,WZPK-566U,WZPK-173U,WZPK-174U,WZPK-175U,WZPK-176U,WZPK-273U,WZPK-274U,WZPK-275U,WZPK-276U,WZPK-373U,WZPK-374U,WZPK-375U,WZPK-376U,WZPK-473U,WZPK-474U,WZPK-475U,WZPK-476U,WZPK-573U,WZPK-574U,WZPK-575U,WZPK-576U,WZPK-103S,WZPK-104S,WZPK-105S,WZPK-106S,WZPK2-105SA,WZPK2-106SA,WZPK-203S,WZPK-204S,WZPK-205S,WZPK-206S,WZPK2-205SA,WZPK2-206SA,WZPK-303S,化工隔爆型熱電阻WZPK-304S,WZPK-305S,WZPK-306S,WZPK2-305SA,WZPK2306SA,WZPK-403S,WZPK-404S,WZPK-405S,WZPK-406S,WZPK2-405SA,WZPK2406SA,WZPK-503S,WZPK-504S,WZPK-505S,WZPK-506S,WZPK2-505SA,WZPK2506SA,WZPK-123S,WZPK-124S,WZPK-125S,WZPK-126S,WZPK2-125SA,WZPK2-126SA,WZPK-223S,WZPK-224S,WZPK-225S,WZPK-226S,WZPK2-225SA,WPK2-225SA,WZPK2-226SA,WZPK-323S,WZPK-324S,WZPK-325S,WZPK-326S,WZPK2-325SA,WZPK2326SA,WZPK-423S,WZPK-424S,WZPK-425S,WZPK-426S,WZPK2-425SA,WZPK2426SA,WZPK-523S,隔爆鉑電阻WZPK-524S,WZPK-525S,WZPK-526S,WZPK2-525SA,WZPK2526SA,WZPK-133S,WZPK-134S,WZPK-135S,WZPK-136S,WZPK2-135SA,WZPK2-136SA,WZPK-233S,WZPK-234S,WZPK-235S,WZPK-236S,WZPK2-235SA,WZPK2-236SA,WZPK-333S,WZPK-334S,WZPK-335S,WZPK-336S,WZPK2-335SA,WZPK2336SA,WZPK-433S,WZPK-434S,WZPK-435S,WZPK-436S,WZPK2-435SA,WZPK2436SA,WZPK-533S,WZPK-534S,WZPK-535S,WZPK-536S,WZPK2-535SA,WZPK2536SA,WZPK-163S,WZPK-164S,WZPK-165S,WZPK-166S,鉑電阻元件WZPK2-165SA,WZPK2-166SA,WZPK-263S,WZPK-264S,WZPK-265S,WZPK-266S,WZPK2-265SA,WZPK2-266SA,WZPK-363S,WZPK-364S,WZPK-365S,WZPK-366S,WZPK2-365SA,WZPK2366SA,WZPK-463S,WZPK-464S,WZPK-465S,WZPK-466S,WZPK2-465SA,WZPK2466SA,WZPK-563S,WZPK-564S,WZPK-565S,WZPK-566S,WZPK2-565SA,WZPK2566SA,WZPK-173S,WZPK-174S,WZPK-175S,WZPK-176S,WZPK2-175SA,WZPK2-176SA,WZPK-273S,WZPK-274S,WZPK-275S,WZPK-276S,WZPK2-275SA,WZPK2-276SA,WZPK-373S,WZPK-374S,WZPK-375S,WZPK-376S,WZPK2-375SA,WZPK2376SA,WZPK-473S,WZPK-474S,WZPK-475S,WZPK-476S,WZPK2-475SA,WZPK2476SA,WZPK-573S,WZPK-574S,WZPK-575S,WZPK-576S,WZPK2-575SA,WZPK2576SA,WZPM-101U,WZPM-201U,WZPM—002U,WZPM-102U,WZPM-202U,WZPM—001,WZPM-101S,WZPM-201S,WZPM-002,WZPM-102,WZPM-202,WZPM—301,WZP-011S,WZP-012S,WZP-013S,WZP-014S,WZP-015S,WZP-203S,WZP-205S,WZP-018,WZP-0110,WZP-2012,