隔爆型,本安型帶熱電偶電阻,SBWR-4270/440D, 主要特點: ● 采用硅橡膠或環氧樹脂密封結構,因此耐震、耐濕,適合在現場環境中安裝使用; ● 現場安裝在熱電偶,熱電阻的接線盒內使用,直接輸出4-20mA、0-10mA的輸出信號。這樣既節約了昂貴的補償導線費用,又提高了信號遠距離傳輸過程中的抗干擾能力; ● 熱電偶變送器具有冷端自動補償功能;精度高、功耗低,使用環境溫度范圍寬,工作穩定可靠; ● 適用范圍廣,即可以與熱電偶,熱電阻形成一體化現場安裝結構,也可以作為功能模塊安裝在檢測設備中和儀表盤上使用: 工作原理: 熱電偶或熱電阻傳感器被溫度轉換成電信號,再將信號送入變送器的輸入網絡,該網絡包含調零和熱電偶補償等相關電路。經調零后的信號輸入到運算放大器進行信號放大,放大的信號一經V/I轉換器運算處理后以DC4-20mA電流輸出;另一路經A/D轉換器處理后到表頭顯示。變送器的線性化電路有兩種,均采用反饋方式。對熱電阻傳感器,用正反方式校正,對熱電偶傳感器,用多段折線逼近法進行校正。一體化數字顯示溫度變送器LCD顯示的采用兩線制方式輸出。 技術參數 1.輸入信號:熱電偶:K、E、J、B、S、T、N;熱電阻:Pt100、Cu50、 Cu100、(三線制、四線制),智能型溫度變送器的輸入信號可通過PC機或手操器任意設置; 2.輸出信號:在量程范圍內輸出DC4-20mA電流信號,與熱電偶、熱電阻的輸入信號成線性或與溫度成線性。智能型溫度變送器輸出DC4-20mA電流信號同時疊加符合HART標準協議通信信號; 3.基本誤差:0.5%FS;0.2%FS;智能型0.2%FS; 4.接線方式:二線制;三線制; 5.顯示方式:四位LCD顯示溫度,智能型四位LCD可通過PC機或手操器設定使之顯示現場溫度,傳感器值,輸出電流和百分比例中的任一種參數; 6.工作電壓:普通型12∽35V DC;智能型12V∽45V DC;額定工作電壓為24V DC; 7.允許負載電阻:500Ω(24VDC供電);極限負載電阻R(max)=50(Vmin-12),例如在額定工作電壓24V DC時,負載電阻可0-600Ω范圍內選擇使用。 8.工作環境: a:環境溫度 -25∽80℃(常規型) -25∽70℃(數顯型) b:相對溫度 5%∽95% c:機械振動f≤50HZ,振幅≤0.15mm d:無腐蝕氣體或類似的環境; 9.溫度影響系數:δ≤0.05%/℃ 電站測溫用熱電偶WREK-422, WREK-432, WREK-482, WREK-492WREK2-421, WREK2-431, WREK2-422, WREK2-432, WRNK-401, WRNK-421, WRNK-431,WRNK-481, WRNK-491, WRNK-402, WRNK-422, WRNK-432, WRNK-482, WRNK-492,WRNK2-421, WRNK2-431, WRNK2-422,. WRNK2-432, 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, 化工熱電偶WREM-102A, WRNM-201A, WRNM-203A WRNN-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, 激光測距儀:TM1500,TM1000,TM800,TM600,DLE50,DLE150,LRM1200,LRM-1500,F421D,F411D,PD4,PD40,PRO1500,PRO600,PRO440,PRO6000,PR20,PML32-R,PMP34,PRI2,RL350GL,RL250GL,S2,D2,D3,A5,D5,A6,A8 ,Prexiso X2 ,Impulse 200 ,Impulse 200LR ,Impulse 200XL ,PD-4,PD-42 ,PD-40 ,NM-500,NM-600,NM-700,NM-1200,NM-1500,1200S,超聲波測距儀:ST820,ST822,AR-811,AT-831,AR-841,AR-851,測距儀:VC850,VICTOR 851,600VR,600VH,1500VR,1500VH,1500VR/VH,1000VR/VH,800VR/VH,600VR/VH , 測高儀 6000E,2000E,SIR-600E,600E,AR-600E ,CHM6000, 照度計 紫外照度計:TN-340,ST510,ST512,ST513,TN2340,YK-34UV,BK-8732,UVAB513,UV-365HA,UV-340A,UVA-365,UVC-254,YK-35UV,UV-365,照度計:DE-350,VA-8050,AK-820,* 3640-20,* 3423,MS6610,* 5202,* 5201,F941,MS6610,BK-8332,BK-8630,BK8731,BK-8331,LX-101A,LX-102,LX-107,DT1308,DT1309,DT8809,DT8809A,VICTOR 1010,LX101,TES-1330A,* 3640-20,AR-813,AR-823,DT-8808,TES-1332,TES-1334,TES-1336,LX-9621,LX-9626,原子吸收分光光度計:LAB800,LAB700,LAB600M,LAB600H,LAB600,LAB500,LAB400,LAB300,LAB200,LAB100,HG--9602A,HG—9602,HG--9602B,HG—9601,數字照度計:DE-3351,DE-3350,LX-1102,LX-105,LX-103 ,UT-381,UT-382,TES-1335,TES-1339,TN-1330,YF-1065,YF-170,CENTER-337, 風速計 SUMMIT-555,SUMMIT-556,SUMMIT-565,SUMMIT-575,SUMMIT-350,KANOMAX-6162,KANOMAX-6004,KANOMAX 6631-P, KANOMAX- 6113,,KA41L, KA41I, KA32L, KA32I, KA321, KA32L, KA41I , KA41L, KA22,KA31,KA12,KA1I, TM-856,TM-826,TM816 ,YK-2005LX,YK-2005AH,YK-80AP,YK-80AM ,LM-81AM,LM-8000, TN-2424,TN-2426,TN-2481,TN-2204,TN-2480,TN-2423,TN-2381,TN-2400,AM-4200,AM-4206M ,AM-4204,AM-4206 ,AM-4203HA,AM-4203M ,AM-4203,AM-4201,AM-4202,AM-4216, AM-4213,AM-4204HA , AM-4205A, AM-4214HA, AM-4220,DT618,DT619,DT620,DT-8893,DT-8880,,DT-8894, TM-209,TM-404,TM-403,TM-401, SYT-2000V , UT-361, UT-362, TESTO 410-1,TESTO 410-2 ,TESTO 405-V1,F925,AVM-07,AVM-303,AVM-03,AVM-05,AVM01,AVM-301,VA8021 ,VA8022,VA8020,BK8360,BK8361,AZ8901,AZ8904,AZ8906,AZ8909,AZ8910,AZ9871 ,AR-816 ,AR-826,AR-836,AR-846,AM-4822,AM-4836,AM-4838,AM-4812,AM-4826,AM-4832 ,AK-02,AK03,TM-209,TM-404,TM-403,TM-401, |