防爆跑偏开关DWPK12-30防爆跑偏开关DWPK12-30防爆跑偏开关DWPK12-30 DWPK-12-30两级跑偏开关安装和调整: 1.跑偏开关设在输送带两侧,立辊应与输送带边平面垂直,并使输送带两边位于立辊高度1/3处。 2.跑偏开关立辊与输送带正常位置的间距宜为50~100mm。 3.跑偏开关数量应根据输送机长度、类型及布置情况进行确定。一般应在输送机头部、尾部、凸弧段、凹弧段和在输送机中间位置进行设置。(注:当输送机较长时,在输送机中间位置可每隔30~35米设1对) DWPK-12-30两级跑偏开关特点: 开关触点的额定值:2个SPDT(单刀双掷) 开关,16A/250V/AC二常开二常闭自清洁触点 外壳:铸铝防风雨外壳 防护等级:IP65 法向报警角度:在偏离垂直方向22.5°可调 作用力:5磅 DWPK-12-30两级跑偏开关使用环境: 环境温度:-40℃~+60℃; 相对湿度:不大于90%; 大气压力:80~110kpa; 海拔高度:不超过2000M; 使用寿命:开关动作1万次; 绝缘电压:AC1000V试验历时1分钟 DWPK-12-30两级跑偏开关基本原理: 输送机在运行中,当皮带跑偏且与开关立辊接触时,立辊自转,若跑偏量继续加大,则挤压立辊发生偏移。一级开关信号用于报警,如果将此信号与跑调整装置相接,即可实现不停机状态下的跑偏自动调整。二级开关信号用于停机,将此信号接至控制线路中,即可实现重度跑偏状态下的自动停机。当故障排除后,胶带离开立辊正常运转时,立辊可自动复位。 DWPK-12-30两级跑偏开关安装和调整: 1.跑偏开关设在输送带两侧,立辊应与输送带边平面垂直,并使输送带两边位于立辊高度1/3处。 2.跑偏开关立辊与输送带正常位置的间距宜为50~100mm。 3.跑偏开关数量应根据输送机长度、类型及布置情况进行确定。一般应在输送机头部、尾部、凸弧段、凹弧段和在输送机中间位置进行设置。(注:当输送机较长时,在输送机中间位置可每隔30~35米设1对) 主要是起连锁保护的作用。zui常见的例子莫过于其在洗衣机和录音机(录像机)中的应用了。 在洗衣机的脱水(甩干)过程中转速很高,如果此时有人由于疏忽打开洗衣机的门或盖后,再把手伸进去,很容易对人造成伤害,为了避免这种事故的发生,在洗衣机的门或盖上装了个电接点,一旦有人开启洗衣机的门或盖时,就自动把电机断电,甚至还要靠机械办法联动,使门或盖一打开就立刻“刹车”,强迫转动着的部件停下来,免得伤害人身。 在录音机和录像机中,我们常常使用到快进或者倒带,磁带急速地转动,但是当到达磁带的端点时会自动停下来。在这里行程开关又一次发挥了作用,不过这一次不是靠碰撞而是靠磁带的张力的突然增大引起动作的。 铠装铂热波膜电阻,WZPK-105U,WZPK-324U,WZPK-364U,WZPK-264U,WZPK-163U,WZPK-523U,WZP-421D,WZPK-103U,WRP2-121B,WZP2-74S化工隔爆热电阻,WRR-131,WRR2-131,WRN-230D,WRE-210D,WRN-430D,WRNK-431,WRK-240,WRK-520,WRS-132,WRT-620,WRN-130,WRN-130,WRNK-231,WREK-232,WRE-621A,WZPK-133S,WRN-631,WRE2-235T,WRER2-13,WRPB-230,WRE-621,WRN2-621,.WZPM-201S,WZPK2-306SA,WZP-205S,WREK-1315,WRET-01,WZPF-130 WZCF-130 WZPF-430,WRNT-11,WZCM、WZPM,SBW系列,WRR-120,WRR-121,WRP-120,WRP-121,WRN-122,WRN-123,铂铑热电偶,铠装铂铑热电偶,水泥厂热电偶,玻璃窑炉热电偶,铠装热电偶,WRN-130F,WRN-230F,WRN-330F,WRN-430F,WZP-002,WZP2-631,WZP2-621A,WZP2-621,WZP-631单支铂热电阻,WZP-621,WZP-430,WZP-420A,WZP2-430,WZP2-421,WZP2-420,WZP-420,WZC-320,WZP2-331,WZP2-321,WZP2-320,WZP-331,WZP-330,WZP-321,WZP-320,WZC-220A,WZC-230,WZC-220,WZP-221A,WZP2-231,WZP2-230双支铂热电阻,WZP-3212A,WRE2-235T,WRNT-001,WZP-221,WZP-220,WREK、WRNK、WRCK,WREK-1314,WREK-440,WRNK-440,WZC-200,WRN-621A,WZP-24SA,WRE2-631,WRE-220,WZP-003,WZPM-101U,电接点压力式温度计WTZ-288、WTQ-288,WTZ-280B-F,WTZ280、WTQ280,WTZ-280,WZPN-431,WZPN2-131,WZPN2-331,WZPN-130,WRN2-230-F,WZPK-526U,WZCN-430,WZCN-330,WZCN-130,WZCN-230,WZPN-131,WZP-431D,WZPN-430,WZPN2-130,WZPN-330,WZPN-331,耐磨热电偶,WZPN-230,WZC-130-F,WZC-430-F,WZC-330-F耐腐耐磨型热电偶电阻,WZC-230-F,.WZP2-431-F,WZP2-331-F,WZP2-231-F,WZP2-131-F,WZP-431-F,WZP-331-F,WZP-231-F,WZP-131-F,WZP2-430-F,WZP2-330-F,WZP2-230-F,WZP2-130-F,WZP-430-F,WZP-230-F,WZP-130-F,WREN2-631,WREN-631,WRNN2-631,WRNN-631,WREN2-530,WREN-530,WRNN2-530,WRNN-530,WREN2-430,WREN2-330,WREN2-230,WREN2-130,WREN-430,WREN-330,WREN-230,WREN-130,WRNN2-430,WRNN2-330,WRNN2-230,WRNN-430,WRNN-330,WRNN-230,WRNN-130,WZPK-163S,WRE2-430-F,WRE2-330-F,WRE2-230-F,WRE2-130-F,WRE-430-F,WRE-330-F,WRE-230-F,WRER2-01中温中压电偶,WRNR2-01,WZPK2-435SA,WRR-120B,WRN2-130-F,WRN-430-F,WRN-330-F,JB/T5219-91,WRE-002,WRN-002,WRE-001,WRN-001,WRNK-1323,WRNK-1326,WRNK-1325,WRNK-1324,WRNK-1316,.WRNK-1315,WRNK-1314,WRNK-1313,WREK-1326,WREK-1325,WREK-1324,WREK-1323,WRER-1316,WREK-1315,WREK-1314,WREK-1313,WREK-1313,WZC-890J,WZC-130,WZP2-130,WZP-130,WRE2-130,WRE-130,WRN2-130,WRN-130,WZPK2-566SA,WZPK2-565SA,WZPK2-466SA,WZPK2-465SA,WZPK-566S,WZPK-565S,WZPK-564S,WZPK-563S,WZPK-466S,WZPK-465S,WZPK-464S,WZPK-463S,WZPK2-366SA,WZPK2-365SA,WZPK-266SA,WZPK-265SA,WZPK-366S,WZPK-364S,WZPK-365SA,WZPK-363S,WZPK-266S,WZPK-265S,WZPK-264S,WZPK-263S,WZPK-166SA,WZPK-165SA,WZPK-166S,WZPK-165S,WZPK-164S,WZPK-436S,WZPK-435S,WZPK-434S,WZPK-433S,WZP-633,WZP2-93C2 ND21058, ND-2106, ND-2109, GXF-217, GXF-218, PCLS-10, PNAS-50, PFS-80, JPB-607, DZP-711, DZP-712, SLS-2, SXZ-4, SGZ-1A, OIL-2, SGZ-1P, SGZ-2P, SGZ-3, CLY-1, WQ-1, SD-9011, F732-G, F732-S, F732-V, ZYQ-II, GDS-3A, GDS-3B, GDS-3C, HH-3, 870, PXS-215, PXSJ-216, H19821, H193700, H193734, H193723, H193719, H193729, H193707, H193706, H193713, H193728, H193714, H193751, H193705, H193738, H193702, H195747, H193721, H193746, H193709, H193748, H193712, H193731, H193750, H193718, H193737, H193730, H193716, H193726, H193740, 分析仪器: RZY-1,RZY-2,WRT-3P,CDR-4P,CDR-34P,CRY-1P,CRY-2P,CRY-31P,CRY-32P,ZRY-1P,ZRY-2P, ZRY-32P, RJY-1P, MA99-1, MA99-2, MA99-2A, MA99-3, MB99-1, MA99-2, MA99-2A, MA99-3, MC99-2, MC99-3, MD99-1, MD99-2, MD99-2A, MD99-3, ME99-1, ME99-2, ME99-3, MF99-1, MF99-2, MF99-3, BS-16A, BS-30A, BS-100A, BS-160A, BS-100N, BSZ-16, BSZ-30, BSZ-40, SZ-100, BSZ-160, SBS-100, SBS-160, DBS-100, DBS-160, CBS-A, CBS-B, CBS-C, JLF-A, WH-1, WH-2, WH-3, XW-80A, 油口分析测量仪器: SYD-267, SYD-3536, SYD-3536A, SYD-3536B, SYD-3536D, SYD-261, SYD-261A, SYD-261B, SYD-261D, WNE-1A, WNE-1B, SYD-260, SYD-260A, SYD-2122, SYD-2122A, SYD-2122B, SYD-265B, SYD-265C, SYD-265D, SYD-265D-1, SYD-265H, SYD-265C-2, SYD-265G, SYD-265-2, SYD-255, SYD-255G, SYD-6536, SYD-6536A, SYD-6536B, SYD-6536C, SYD-0165, SYD-1884, SYD-510, SYD-510B, SYD-510-I, SYD-510G, SYD-510G-I, SYD-510E, SYD-510G-II, SYD-510D, SYD-510F1, SYD-510Z-I, HWY-ND, SYD-2430, SYD-11143, SYD-5096A, SYD-5096, SYD-0232, SYD-268, SYD-30011, SYD-7305, SYD-7305A, SYD-12579, SYD-8019, SYD-509A, SYD-8017, SYD-8017A, SYD-0089, SYD-8018D, SYD-0175, SYD-0206, SYD-0193, SYD-11132, SYD-2801A, SYD-2801C, SYD-2801G, SYD-270A, SYD-380B, SYD-387, SYD-259, SYD-264, SYD-264A, SYD-511B, SYD-508, SYD-0168, SYD-0324, SYD-262, SYD-262A, SYD-8929, SYD-3069, SYD-6532, SYD-1792, SYD-3554, SYD-706, SYD-6541, SYD-17623, SYD-0308, SYD-421, SYD-507, 沥青检测类仪器: SYD-2806, SYD-2806E, SYD-2806F, SYD-2806G, SYD-2806H, SYD-4508A, SYD-4508B, SYD-4508C, SYD-4508D, SYD-4508F, SYD-4508G, SYD-2801D, SYD-2801D1, SYD-2801E, SYD-2801E1, SYD-2801F, SYD-2801I, SYD-0722, SYD-0722A, SYD-0615, SYD-0609, SYD-0610, SYD-265E, SYD-0620, SYD-0711A, SYD-0334, SYD-0631, SYD-0621,WNE-1C, SYD-0623, SYD-0624, SYD-0633, SYD-255A, PAV-1, SYD-XY150, SYD-0613, SYD-0613A, SYD-0709, SYD-0709A, SYD-0702, SYD-0702A, SYD-0131, SYD-F02-20, SYD-0719, SYD-0719A, SYD-0719B, SYD-0703, SYD-6307,NSF-1, SYD-0618, SYD-0653, SYD-0654, SYD-0655, SYD-0751, SYD-0752, SYD-0754, SYD-0755, SYD-1617, JJC-1D, 试验器: SYP1001B-2, SYP1001B-5, SYP1002B-2, SYP1002-3, SYP1003-6, SYP1003-6A, SYP1003-6B, SYP1003-6E, SYP1003, SYP1003-7, SYP1003-7A, SYP1003-7B, SYP1003-7D, SYP1003-9, SYP1003-9A, SYP1003-9B, SYP1004-3, SYP1008-3C, SYP1008-3E, SYP1003-8, SYP1010-2, SYP1013, SYP1015-1, SYP1015-3, SYP1016-1B, SYP1016-1C, SYP1016-2C, SYP1016-2D, SYP1016-2E, SYP1016-2F, SYP1017-1,SYP1021, SYP2000-1, SYP1022-2A, SYP1022-2C, SYP1022-2D, SYP1022-1C, SYP1023, SYP1024, SYP1025, SYP1026, SYP1026-1, SYP1027, SYP1027-1, SYP20013A, SYP2001-3B, SYP2001-3C, SYP2007-1, SYP3006-1, SYP3007B-2, SYP3008, SYP3010-1, SYP3013, SYP4100-1, SYP4101, SYP4101-1, SYP4101-A, SYP4101-B, SYP4106-1, XSP, SYP4108, SYP4111-2, SYP4202-1, SYP4301-2, SYP7004-1, SYP7005, ZL-2, SYP9000, SYP9001A, SYP9001B, SYP9002B-1, SYP9002-1, SYP9003-2, SYP9010, SYP9012, SYP2102, 测汞仪: F732-V, F732-VJ, F732-S, F732-G, ZYG-11, DHL-2, DHL-3, DHL-4, DHL-100, DHL-200, DHL-300, HL-2D, HL-6D, HL-7D, HL-2B, HL-3B, HL-4B, HL-5B, HL-6B, HL-7B,HL-100B, HL-200B, HL-300B, HL-600B, HL-2, HL-3, HL-4, HL-5, HL-6, HL-7, HL-100, HL-200, HL-300, HL-600, DHL-A, HDL-B, HL-1, HL-1B, HL-1S, HL-2, HL-2B, HL-2D, HL-2S, HL-3, HL-3B, HL-4, HL-4B, HL-4D, HL-5, HL-5A, HL-5B, HL-6, HL-6B, HL-6D, BT-100, BT-100B, BT-100D, BT-200, BT-200B, BT-600, BT-600B, T-600C, HL-2N, BT-100N, 颗粒测定仪: LKY-2, PME1,PME, 粘度计: NDJ-1,NDJ-4,NDJ-5,NDJ-8SN,NDJ-9SN,SNB-1,SNB-4,DV-1,NDJ-7,NDJ-5S,NDJ-8S,NDJ-79,NDJ-1B,NDJ-1B-1, NDJ-99, NDJ-1C, NDJ-1D, NDJ-1F, NDJ-1E, 水分测定仪: LHS16-A, DHS16-A, SH-10A, SC69-02C, EMA-100, EMA-50, EMA-20, SC-10, MA35, MA150, MA100, MB35, MB45, MB23, MB25, KF-1, KF-1A, KF-1, KF-1B, LDS-IG, LDS-IH, LDS-IF, LJDS-I, LDS-IY, LDS-IK, LDS-IS, LDS-2G, LDS-2A, LDS-2, LDS-3H, LJS-IA, LJS-IB, LMS-30, LTJM-2008, LTJM-8, LTJM-3, 电导率仪,: FE20K,FE20,FE30K,FE30,FG2-B,FG2-ELK,FG2-FK,FG3-B,FG3-ELK,FG3-FK,SG2-B,SG2-ELK,SG2-T,SG2-FK,SG2-ASK,SG3-B,SG3-ELK,SG3-ELK740SG,SGE-FK2,SG3-FK10,SG3-ASK,SG6-ELK,SG6-FK2,SG6-FK10,SG6-ASK,SG7-B,SG7-ELK,SG7-ELK740SG,SG7-FK2,SG7-FK10,SG7-ASK,SG8-B,SG8-ELK,SG8-FK,SG8-ASK,S20K,S20,S30K,S30,S40K,S40,S40N,PB-10,PB-21,PT-10,PT-10P,PP-15-P11,PP-20-P11,PP-25-P11,PP-50-P11,DDS-307,DDS-307A,DDSJ-308A,DDSJ-318,DDBJ-350,DDB-303A,DDS-11D,TM-03,DDS-11C,DDS-11A,DDG-5205A,DDG-33,DDG-330,DDD-32D ,DCG-760A,DDB-1,DDB-2,DDB-11A,DDC-11C, 紫外分析仪: ZF-I, ZF-20C, ZF-20D, ZF-401A, ZF-401B, ZF-501A, ZF-501B, ZF-90A, ZF-90B, ZF-7A, ZF-7B, ZF-7C, ZF-7D, ZQJ-254, ZF-4, WFH-203B, WFH-204A, WFH-204B, WFH-204, WFH-201BJ, WFH-201B, WFH-202B, WFH-201A, WFH-202, WFH-205B, HD-9706, HD-9707, HD-9704, HD-9705, HD-1, HD-2, HD-3, HD-4, HD-5, HD-A, HA-B, HD-S, ZF-C, ZF-5, 电位仪: DJS-292B, DJS-292C, DJS-292, DJS-292D, 气体测定仪,测定仪: SCY-3B,SCY-3C,SCY-1,SCY-2,SCY-2A,CES-30,SZF-06A,SZF-06B,CXC-06,NPC-02,HJ-2, SZF-06, SZF-06G, NPCA-02, CXC-06, SZC-C, SZC-D, SLQ-6, EAB1-95, EAB1-2000, HJS-IV, SZF-06A, HJ-2, 浊度仪: WGZ-200,WGZ-2000,WGL,WZR,WYL-2,WGZ-100,WGZ-800,WGZ-1,WGZ-20,WGZ-B,WGZ-1B, WGZ-1S, WGZ-20, WGZ-1A, WGZ-1AP, WGZ-2, WGZ-2A, WGZ-3, WGZ-3P, WGZ-3A, WGZ-3AP, WGZ-2000P, WGZ-4000, WGZ-4000P, WGZ-1C, WGZ-2C, WGZ-3C, WGZ-200C, WGZ-2-PJ,WGZ-2-XJ,SGZ-B,SGZ-1B,SGZ-2B,SGZ-3B,SGZ-5B,SGZ-1A,SGZ-1AP,SGZ-2A,SGZ-2AP,SGZ-3A,SGZ-3AP,SGZ-5A,SGZ-5AP,SGZ-6A,SGZ-6AP,SGZ-1,SGZ-2,SGZ-3,SGZ-200, SGZ-200I, SGZ-200IT, SGZ-400I, SGZ-400IT, SGZ-500I, SGZ-500IT, SGZ-800I, SGZ-800IT, SGZ-1000I,SGZ-1000IT,SGZ-2000I,SGZ-2000IT,WZS-185,WZS-180,WZS-200,WZS-20,WZS-1000, |