裝配式熱電阻，WZP-2420C, | 主要技術參數 | | 熱電阻類型 | 測溫范圍℃ | 分度號 | 允許偏差△t℃ | | wzp型鉑電阻 | -200~420 | Pt100 | B級（-200~800℃）允差±（0.30+0.005/t/） | | *（-200~650 ℃ ） 允差±（0.15+0.002/t/） | | WZC型銅電阻 | -150~100 | Cu50 | -50~100℃允差 | | | | | | | | | 工作原理 | | 熱電阻是利用物質在溫度變化時本身電阻也隨著發生變化的特性來測量溫度的。熱電阻的受熱部分（感溫元件）是用細金屬絲均勻地雙繞在絕緣材料制成的骨架上，當被測介質中有溫度梯度存在時，所測得的溫度是感溫元件所在范圍內介質層中的平均溫度. | | 特 點 | | 全國統一設計產品，接口尺寸通用，互換性好； | | 采用裝配式結構，零件分解性好，維修方便； | | 更換易損件成本低； | | 規格齊全，性能穩定可靠。 | | 絕緣電阻 | | 裝配鉑熱電阻的常溫絕緣電阻應不小于100MΩ | | 裝配銅熱電阻的常溫絕緣電阻應不小于50MΩ | | 常溫絕緣電阻的試驗電壓為10~100V DC。 | | 自熱影響:鉑電阻允許通過的zui大電流為5mA，由此產生的溫升不大于0.3℃。 | | 熱響應時間：在溫度出現階躍變化時，熱電阻的輸出變化至相當于該階躍變化的50%，所需要的時間，稱為熱響應時間，用τ0.5表示。 | | 熱電阻時間常數 | | 熱惰性級別 | 時間常數（秒） | 熱惰性級別 | 時間常數（秒） | | Ⅰ | 90－180 | Ⅲ | 10－30 | | Ⅱ | 30－90 | Ⅳ | 10 | | | | | 熱電阻的公稱壓力：一般是指在工作溫度下保護管所能承受的靜態外壓而不破裂。 | | 熱電阻zui小插入深度：應不小于其保護套管外徑的8－10倍。 | | 絕緣電阻：當周圍空氣溫度為15－35℃，相對濕度＜80％時，絕緣電阻 20兆歐（電壓100V） | | 。具有防濺式接線盒的絕緣電阻應2兆歐（電壓100V） | | 熱電阻感溫元件在0℃ 時電阻值（R0）及其與在100℃ 時的電阻值（R100）比值： | | 比值＝R100／R | | 分度號為Pt10、Pt100時；R100 /R0 =1.3850±0.001 | | 分度號為Cu50、Cu100時；R100 /R0 =1.3850±0.0 | 鉑銠10-鉑二等標準熱電偶WREK-182，WREK-188，WREK-192，WREK2-121，WREK2-131，WREK2-122，WREK2-132，WRNK-101，WRNK-121，WRNK-131，WRNK-181，WRNK-187，WRNK-191，WRNK-102，WRNK-122，WRNK-132，WRNK-182，WRNK-188,WRNK-192，.WRNK2-121，WRNK2-131，WRNK2-122，WRNK2-132，WRCK-101，WRCK-121，WRCK-131，WRCK-181，WRCK-187，吹氣型熱電偶WRCK-191，WRCK-102，WRCK-122，WRCK-132，WRCK-182，WRCK-188，WRCK-192，WRCK2-121，WRCK2-131，WRCK2-122，WRCK2-132，.WREK-201，WREK-221，WREK-231，WREK-281，WREK-291，WREK-202，WREK-222,WREK-232，WREK-282，WREK-292，WREK2-221，WREK2-231，WREK2-222，WREK2-232，WRNK-201，WRNK-221，WRNK-231，WRNK-281，WRNK-291，WRNK-202，WRNK-222，.WRNK-232，WRNK-282，WRNK-292，WRNK2-221，WRNK2-231，WRNK2-222，WRNK2-232，WRCK-201, WRCK-221, WRCK-231, 拱頂熱電偶WRCK-281, WRCK-291, WRCK-202, WRCK-222, WRCK-232, WRCK-282, WRCK-292. WRCK2-221, WRCK2-231, WRCK2-222, WRCK2-232，WREK-301, WREK-321, WREK-331, WREK-381, WREK-387, WREK-391, WREK-302, WREK-322, WREK-332, WREK-382, WREK-388, WREK2-321, WREK2-331, .WREK2-322 WREK2-332 ,WRNK-301, 超臨界電站用熱電偶 WRNK-321, WRNK-331, WRNK-391, WRNK-381, WRNK-387, WRNK-302, WRNK-322, WRNK-332, WRNK-392, WRNK-382, WRNK-388, WRNK2-321, WRNK2-331, WRNK2-322, WRNK2-332, WRCK-301, WRCK-321, WRCK-331, WRCK-391,WRCK-381, WRCK-387, WRCK-302, WRCK-322, .WRCK-392, WRCK-382, WRCK-388,WRCK2-321，WRCK2-331，WRCK2-322，WRCK2-332，WREK-401，WREK-421，WREK-431，WREK-481, WREK-491, WREK-402, 實驗箱： BC100,BC200,BC300,BC400,BCG200,BCG300,BCG400,BCI200,BCI300,BCI400,YWS-080, YWS-150, YWS-250, YWS-150S, YWS-250S, YWS-500S,GDH-2005A, GDH-2010A, GDH-2025A, GDH-2050A, GDH-2005B, GDH-2010B, GDH-2025B, GDH-2050B, GDH-2005C, GDH-2010C, GDH-2025C, GDH-2050C, GDJ-2005A, GDJ-2010A, GDJ-2025A, GDJ-2050A, GDJ-2005B, GDJ-2010B, GDJ-2025B, GDJ-2050B, GDJ-2005C, GDJ-2010C, GDJ-2025C, GDJ-2050C, GDHS-2005A, GDHS-2010A, GDHS-2025A, GDHS-2050A, GDHS-2005B, GDHS-2010B, GDHS-2025B, GDHS-2050B, GDHS-2005C, GDHS-2010C, GDHS-2025C, GDHS-2050C, GDHJ-2005A, GDHJ-2010A, GDHJ-2025A, GDHJ-2050A, GDHJ-2005B, GDHJ-2010B, GDHJ-2025B, GDHJ-2050B, GDHJ-2005C, GDHJ-2010C, GDHJ-2025C, GDHJ-2050C, LHH-80SD, LHH-150SD, LHH-250SD, LHH-500SD, LHH-1000SD,LHH-80SDP, LHH-150SDP, LHH-250SDP, LHH-500SDP, LHH-1000SDP, LHH-SS, LHH-SG, LHH-SSG, LHH-150GSP, LHH-250GSP, LHH-500GSP, LHH-150GP, LHH-250GP, LHH-400GP, LYW-015, LYW-025, LYW-075, LYW-015N, LYW-025N, LYW-075N, BPH-060A, BPH-060B, BPH-120A, BPH-120B, BPH-250A, BPH-250B, BPH-250C, BPHJ-060A, BPHJ-060B, BPHJ-120A, BPHJ-120B, BPHJ-250A, BPHJ-250B, BPHJ-250C, BPHS-060A, BPHS-060B, BPHS-120A, BPHS-120B, BPHS-250A, BPHS-250B, BPHS-250C, BPHJS-060A, BPHJS-060B, BPHJS-120A, BPHJS-120B, BPHJS-250A, BPHJS-250B, BPHJS-250C, BHO-401A, BHO-402A, LXD-025, LXD-080A, LXD-080B, PH-101, PH-201, PH-301, PH-401, WG2010, 302A, SM10A, SM025, FQY010A, FQY015, FQY025, FQY050, FQY065, FQY160L,FB401A, 401A, 401AB, 401B, 402B, 151B, YS150, YW250, YG120, CTS-1, 冷藏箱： LZT 20-100, LZT 20-200, LZT 20-300, LZT 20-400, LZT 30-100, LZT 30-200, LZT 30-300,LZT 40-100, LZT 40-200, LZT 40-300,BRC200,BRC400,BRC800,MRC200,MRC400,MRC800, 凈化工作臺： SW-CJ-1D,SW-CJ-1G, SW-CJ-2D,SW-CJ-2G, SW-CJ-1F,SW-CJ-1FD, SW-CJ-2F,SW-CJ-2FD, SW-CJ-1BU,SW-CJ-1CU, SW-CJ-1B,SW-CJ-1C, SW-CJ-1FB,SW-CJ-2FB,VS-840-1, VS-840-2, BXS-A2,BCS-A2,BJ-1CD,BJ-2CD, CJ-820, CCJ-1650, VS-1300, HS-1300, SHJ-875, SHJ-1450, VD-650, VD-850, HD-650, HD-850, SW-CJ-1D, SW-CJ-1G, SW-CJ-2D, SW-CJ-2G, SW-CJ-1F, SW-CJ-1FD, SW-CJ-2F, SW-CJ-2FD, SW-CJ-1BU, SW-CJ-1CU, SW-CJ-1B, SW-CJ-1C, SW-CJ-1FB, SW-CJ-2FB, HS-840U, HS-1300U, VS840U, VS-1300U, BCM-1000, BHC-1300IIA/B3, SW-CJ-DD, SW-CJ-2DD, SW-TFG-12, SW-TFG-15, SW-TFG-18, SW-CJ-90, FLB-1B, FLB-1A, FLB-1C, FLB-1200, FLB-2400, FLB-3600, AAS-700AS, AAS-700AR, PAU-1000, ZJ-600, ZJ-800, SW-CJ-1K, SW-CJ-2K, APB557, APB777, JC-900, JC-1200, SW-CJ-1E, SW-CJ-1ED, SW-CJ-2E, SW-CJ-2ED, SW-CJ-DA, SW-CJ-DB, 遠紅外干燥箱： 70-1,766-3A, 766-2A, 766-1A, 766-0A, 766-3AS, 766-2AS, 766-1AS, 766-0AS,404-1, 電阻爐： SK2-2.5-13, SK2-2-13, SX2-2.5-10, SX2-4-10, SX2-5-10, SX2-8-10, SX2-12-10, SX2-2.5-12, SX2-5-12, SX2-10-12, SX2-4-13, SX2-6-13, SX2-8-13, SX2-10-13, SX2-8-16, SX2-12-16,XL-1, KSW-4D-11,KSW-4D-13,SXL-1002,SXL-1008, SXL-1016, SXL-1030, SXL-1208, SXL-1216, SXL-1304, SXL-1313, SX2-2.5-10N, SX2-4-10N, SX2-8-10N, SX2-12-10N, SX2-2.5-12N, SX2-5-12N, SX2-10-12N, SX2-4-13N, SX2-8-13N, SX2-8-16N, SX2-12-16N, SX2-2.5-10T, SX2-4-10T, SX2-8-10T, SX2-10-12T, 恒溫振蕩器： SHZ-A,SHZ-B,SHZ-C,THZ-92A,THZ-92B,THZ-92C,ZD-810,THZ-312,THZ-412,THZ-320,THZ-420,TQZ-312,LHZ-111,LQZ-211,ZDP-150,ZDP-250,HZP-150, HZP-250,DHZ-1102, DHZ-2102, DHZ-1112, DHZ-2112,WSZ-50A,WSZ-100A,WSZ-200A, SHY-2, SHY-3, SHY-2A, WHY-2, SHA-C, SHZ-82, THZ-82, THZ-82A, ZD-85, CHA-S, CHA-SA, ZD-2, ZD-3, ZD-4, HY-1, HY-2, HY-1A, HY-3, HY-4, HY-3A, HY-5, HY-5A, HY-6, HY-6A, HY-A, HY-B, MM-1, ZW-A, ZW-B, KS, SZ-1, TS-A, ZD-88, MM-1, MM-2, W2-100, W2-100S, W2-100SP, W2-180P, W2-180SP, W3-100SP, W5-100SP, W5-180SP, W10-100SP, W20-100SP, W50-100SP, F2HA, F5HA, F20H, F20H2A, F20H2B, F50H2A, F50H2B, F02J2B, F05J2B, F1J2B, F2J2B, F3J2B, F5J2B, F10J2B, F20J2A, F30J2A,FY20, FY50, VF20P, VF20S, |
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