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(fā)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(tǒng)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(guī)格齊全，性能穩(wěn)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(tài)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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