The ELAP-20 belt deviation switch is used to detect faults that deviate from the centerline of the conveyor belt during operation. It can effectively prevent accidents such as material scattering, overload, belt tearing, and mechanical damage caused by conveyor belt deviation. It can be widely used in various belt transportation machinery in industries such as metallurgy, coal, cement, mining, power, and grain. It is a detection device for safety protection and automation control of material conveying systems. The belt deviation switch ELAP-20 features a cast aluminum shell structure, a sturdy switch structure, high impact resistance, and durability· Second stage detection alarm. It is possible to alarm and control the deviation of the belt at the first level (light) and second level (heavy) separately· The switch is equipped with two sets of normally open and normally closed contacts, which can be used to stop the belt conveyor and give an alarm simultaneously. Platinum resistance element WZPK2-165SA rope switch YHFLS-I, YHFLS-2, YHFLS-1, YHFLS-II, YHFLS-2, YHFLS-11, YHLS-X, YHLS-I, YHLS-2, YHLS-1, YHLS-H, YHLS-II, YHLS-2, YHLS-11, YHPLS-II, YHPLS-2, YHPLS-11, YHPLS-I, YHPLS-2, YHLS-D, YHLS-FF,  YHLS-L, SL2-II, SL2-2, SL2-11 SL-III, SL-111, SL-2, JHLS type, JX (KLT2) - I, JX (KLT2) - II, JX (KLT2) -2, JXW (KLT2) - I, JXW (KLT2) - II, JXW (KLT2) -2, KLT2A, KLT2-2, HFKLT2-1, KLT2-1, KLT2-2, PK-12-30, PK-10-45, PK-20-35, GHLS series, LSKG series, XLLS-F, XLLS-P, XLLS-D XLLS-J, LSKG - Ⅰ, LSKG - Ⅱ, LSKG-2, HFKLT2-N drawstring switch (previously used model: Ramsey SPS-2D), JKPT1, JKPT2, JLK2-S, JLK3-S, JSB-KPP, JY3/PK-12-30, JJLK1-AW, JSB/KLS-1, JSB/KLS-2, JSB/KPP-12-30, JSB/KPP12-30, LP2-2, LL-A, LX-52, LXA-01GKH-T1-A, LXA-01GKH-T2-A, LXA-02GKH-T1-F, LXA-02GKH-T2-F, LXA-02GKH-T2-A, SLSFT2 series, SPS-2D, PMI&nbp sp;, PMII , XDFL2-ZS, XLLS-D, XLPP, XTD-LS, XTD-PK, XTD-SH, XTD-SJ, XTD-SL, XTD-ZL, XTD-ZL-B, YPSL-A, YLSD-2, JSB-KLS-2, JSB-KLS-1, JLKJ-Z, JLKJ-S, JLK4-Z, JLK3-Z, JLK3-S, JLK2-Z, JLK2-S, YH25-1, YPZLD-10A, ZWQ-I2-30, ZS71, ZS73, ZS75,  ZSS-2D type, CSS-2D (A) type, HENEX001, YF-BLKT-I, YF-BLKT-II, JYB/KS-2, KLT2A-IKLT2A-II, FKLT2-Y, KLT2-I, KLT2-II, HFKLT2, LSKGII-Y type, LSKGII-Z type, LSKG-I, LSKG-II, HFLSKG-I, HFLSKG-II, DLS series, DLS-I type, DLS-II type, DPLS series, DPLS-I, DPLS-II, FKLT2, JYB/KS-I, JYB/KS-II, SPS-2D, DLX, LSKT2 series, SPS-2D, LSF-II, BX5800, RHL-YA series, RHL-YB series, SPS-2D type, XJM/KS-I, XJM/KS-II, YHLS-X , YHLS-I, YHFLS-I, YHFLS-I LS II, YHLS-H, YHLS-L, YHLS-FF, YHLSD, YHPLS I, YHPLS II, JHLS type, JHLS type, JHLS-II, HFKPT1-12-30, HFKPT1-10-45, HFKPT1-20-35, HFKLT2-2, HFKLT2-3, LSF-1, LSF-2, KLT2-3, KLT2-2, KLA-D-S, KLA-D-Z, KLB-T-Z, KLB-T-S, HFKLT2-1, FKLT2-Z, KLT2A-1, JKPT1, JKPT2, JLK2-S, JLK3-S, JSB-KPP, JY3/PK-12-30, JJLK1-AW, JSB/KLS-1, JSB/KLS-1 LS-2, JSB/KPP-12-30, JSB/KPP12-30, LP2-2, LL-A, LX-52, LXA-01GKH-T1-A, LXA-01GKH-T2-A, LXA-02GKH-T1-F, LXA-02GKH-T2-F, LXA-02GKH-T2-A, LS-I, LS-II, L18-1A, PK-10-45, PLS, SPS-2D, SLSFT2 series, XDFL2-ZS, XLLS-D, XTD-LS, XTD-PK, XTD-SH, XTD-SJ, XDT-SL, XTD-ZL, YLXA-10A, YH25-1, YLSD-2, ZS71, ZS73, ZS75, HFKLT2 series, GYLS-I, GRB-19150, GRB-17088, GRB-19670, FKLT2 series, DLK2-15AD-H, DLK2-15B-H, DLK2-15A, BLK-2, BLK-1, KJT-LSB - Type II, LJT-LSB-I, KJT-LS-II, KJT-LS-I, SP-2D, JJLK1-AW, JSB/KLS-1, JSB/KLS-2, JSB/KPP-12-30, JSB/KPP12-30, LP2-2, LL-A, LX-52, LXA-01GKH-T1-A, LXA-01GKH-T2-A, LXA-02GKH-T1-F, LXA-02GKH-T2-F, LXA-02GKH-T2-A, LS-I, LS-II, L18-1A, PK-10-45, PLS, SPS-2 D, SLSFT2 series, XDFL2-ZS，KLT2-III ，F(xiàn)LK-III  Two stage deviation switch YHDPK, YHFPK, YHPK-II, YHPK-2, YHPK-11, YHPK-I, YHPK-1, LP series, LP3 type, SSG (KPT1) -12-30, SSG (KPT1) -10-45, SSG (KPT1) -20-35, XLLPP-J, XLLPP-D, PPKG-12-30, PPKG-10-45, PPKG-20-35, HFPPKG-12-30, HFPPKG-10-45, HFPPKG-20-35, HFKPT1-12-30, HFKPT1-10-45, HFKPT1-20-35, HFKPT1-N, KDPE3-KH, KLT1-1 2, KLT1A1-1 2, KLT2-1 2, KLT2A-1 2, KPT1-12-30, LKLT1-12-30, WHKL, WHKP-12-30, YTJKPT1, YTJKPT2, YWPPH, CRS-2D type, CRS-2D (A) type, HESEX011, PW (B) -12-30, PW (B) -10-45, PW (B) -20-35, YF/PK, KPT1- □ - □, KPT1A - □ - □, PPKG-12-30，PPKG-10-45，PPKG-20-35，HFPPKG-12-30WZPK2-236SA WZPK2-335SA WZPK2-336SA WZPK2-435SA WZPK2-436SA WZPK2-535SA WZPK2-536SA, WZPK-163S WZPK-164S WZPK-165S WZPK-166S WZPK-263S WZPK264S WZPK-265S WZPK266S WZPK363S WZPK363S WZPK364S WZPK365S WZPK-366S WZPK-463S WZPK-464S WZPK-465S WZPK-466S .WZPK563S WZPK-564S WZPK-565S WZPK-566S WZPK2-165SA WZPK2-166SA WZPK2-265SA WZPK2-266SA WZPK2-365SA WZPK2-366SA WZPK2-465SA WZPK2466SA WZPK-565SA WZPK2-566SA, WZP-235T, WZP2-235TWZP-130-F, WZP-230-F, WZP-330-F, WZP-430-F, WZP 2-130-F, WZP 2-230-F, WZP 2-330-F, WZP 2-430-F, WZP-131-F, WZP-231-F, Bushing type thermal resistance WZP-331-F, WZP-431-F, WZP 2-131-F, WZP 2-231-F, WZP 2-331-F, .WZP 2-431-F, WZC-130-F, WZC-230-F, WZC-330-F, WZC-430-F, WZPN-130, WZPN-230, WZPN-330, WZPN-430, WZPN 2-130, WZPN 2-230, WZPN 2-330, WZPN 2-430, WZPN -131, WZPN-231, WZPN-331, WZPN-431, WZPN 2-131, WZPN 2-231, .WZPN 2-331, WZPN 2-431, WZPM-631, WZPM2-631, WZCN-130, WZCN-230, WZCN-330, WZCN-430, WZP-2328, WZP2-2328, WZP-93C1, WZP2-93C1, WZP-93C2, WZP2-93C2, WZP-633, WZP2-633, WZP-634, WZP2-634, WZP-4318, WZP2-4318, WZP-731, WZP2-731, WZP-120, WZP-121, Corrosion resistant and wear-resistant thermal resistors WZP-130, WZP-131, WZP2-120, WZP2-121, WZP2-130, WZP2-131, WZP2-131, WZC-120, WZC-130, WZP-220, WZP-221, WZP-231, WZP2-220, WZP2-221, WZP2-230, WZP2-231, WZP-221A, WZP2-221A, WZC-220, WZP-220A, WZP-220A, WZP-220A, WZP-220A, WZP-221, WZP-230, WZP-231 WZP2-220, WZP2-221, WZP2-230, WZP2-201, WZP-220A, WZP2-20A, WZC-220, WZC-230, WZC-220A, WZP-320, WZP-321, WZP-330, WZP2-331, Shandong Jiading Xuelian Instrument Factory: JD-3, ZDS-10, ZDS-10F-2D, ZDS-10F-3D, JD-1S-4D, JD-1S-5D, JD-1S-6D, ZDS-10W, ZDS-10W-2D, JD-3D, ZDS-10D, ZDZ-1, PM-2, ZDS-10H, JD-1E, ZDS-10S, CYS-I, CYES-II, Atmospheric monitoring instrument: CD-1, CD-1B, JWL-1, CLJ-BII, STC-1A, SYC-III, FC-A-III, GS-III, YYT-2000P, DQF-S02, FSC-II, JHC-3, 2000-60PA, DQ-1A, ZT-IC, YM3, YM1, CO-2, P-5L2, A-21ZX, PGM7200, 325-1, 4160, CY-3, CYES-II, 1904, CY-3, SCY-1, SCY-2, SCY-2A, Water quality monitoring instrument: 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, Analytical instrument: 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, Particle analyzer: LKY-2, PME1, PME, viscometer: 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, Moisture meter: 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, Conductivity meter, 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-5205AA DDG-33, DDG-330, DDD-32D, DCG-760A, DDB-1, DDB-2, DDB-11A, DDC-11C, pH meter, acidity meter: PHS-3D, PHS-3C,PHS-3E,PHS-3B,PHSJ-3F,PHSJ-4A,PHSJ-5,PHS-25,PHS-2F,PHBJ-260,PHB-4,PHS-29A,PHS-4,PHS-3CT, PHS-2C, PHB-5,PHC-2,PHC-2000, Laboratory dissolved oxygen: JPB-607, JPB-607A,JPB-608,JPSJ-605,SJG-9435A, Laboratory ion meter: PXS-270, PXSJ-216,PXSJ-226,PXS-215,DWS-51,DWS-51-1,DWS-295,DWS-296, Laboratory titrator: ZDY-500, ZD-2,ZDJ-4A,ZDJ-5,ZYT-1,ZYT-2,ZSD-1,ZSD-2,ZSD-2J,ZD-3A, Analyzer: DZS-706, DZS-707,DZS-708,DZS-718,COD-571,COD-571-1,COD-572,KLS-411,ZDY-501,44B,ZF-2,ZF-2C,ZB-1C, GXG-201, UV analyzer: 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, Visible spectrophotometer: 721, 721N, 721-100, 722N, 722S, 7230G, 723N, 751GD, 752N, 754N, 755B, UV759, UV759S, 756MC, 756CRT, UV757, UV757CRT, UV762, UV765, UV765CRT, UV765PC, 760CRT, 361MC, 361CRT, AA320N, AA320NCRT, AA370MC, 3510, 4510, 4510F, 4530, 4530F,930A, 960MC, 960CRT, 970CRT, 6400A, FP640, FP6410, RP508, 721S, S22PC, 722SP, 725S, S23A, S24, S52, 752S, 752SP, 755S, GOLD S53, S54, 765S, S400, S410, F93, F95, F96, DA620S, UV-7502PCS, UV-7502PC, UV-7502CS, UV-7502C, UV-7504PC, UV-7504C, UV-7504, 723PCS, 723PC, 723C, 722-100, 722, 723, 752, 754, 754PC, 756, 7600MC, 7600CRT, 7601MC, 7601CRT,