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HITROL HM-90-Ex Series, Инструкция по эксплуатации

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HM-90&95-Ex  Series 

 

                                                                                                                HITROL  CO.,  LTD.                                             

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Core 
 

Enclosing tube 
 

Socket 
 

Cage 
 

Pivot 
 

RISING LEVEL 

Switch Action 

The core rises within the enclosing tube because of buoyancy when the level of measure object 

rises and the displacer is submerged. The magnet which is connected with the switch responds to 

trigger the switch when the core rises. 

MAGNET 

SNAP SWITCH   

CORE 

ENCLOSING TUBE 
 

When the level of the object to be measured rises, the float also rises due to buoyancy 

and,  accordingly,  the  connected  core  also  rises.  When  the  core  rises,  a  switch  block 

magnet responds to the core so as to trigger the switch. 

Base 
 

Cover 
 

Float 
 

Содержание HM-90-Ex Series

Страница 1: ...ORY R D INSTITUTE HITROL CO LTD 141 Palhakgol gil Jori eup Paju si Gyeonggi do Korea TEL 82 31 950 9700 FAX 82 31 943 5600 www hitrol com INSTRUCTION MANUAL DISPLACER FLOAT TYPE LEVEL SWITCH HM 90 95 Ex Series Doc no HM90 95 Ex IECEx _IM_Eng_Rev 0 Issue date 2019 11 ...

Страница 2: ...ns 3 Operating Principles 3 Switch Action 4 Specification 6 Components 7 Dimensions and Detailed Technical Specifications 10 Process temperature Switch specification 10 Detail Dimensions 11 Wiring 13 Installation 13 Maintenance 14 Failure Check 15 Cautions for Removal 15 Transportation and Cautions for Assembly 15 Cautions for Installation 15 Cautions for Grounding 15 Cautions for Inserted Externa...

Страница 3: ...y It is mainly used as a water level detector for boilers of power plants and refining equipment of petrochemical plants HM 90 Series is installed on top of tank or connected chamber and works with buoyancy of displacer and tension of spring If the displacer is submerged when the level of measure object rises it becomes lighter because of the buoyancy where the spring that was compressed by the we...

Страница 4: ...isplacer is submerged The magnet which is connected with the switch responds to trigger the switch when the core rises MAGNET SNAP SWITCH CORE ENCLOSING TUBE When the level of the object to be measured rises the float also rises due to buoyancy and accordingly the connected core also rises When the core rises a switch block magnet responds to the core so as to trigger the switch Base Cover Float ...

Страница 5: ...he level of the object to be measured rises the core also rises and switch block magnet responds to the core so as to trigger the switch When the level of the object to be measured is lowered the core rises and the switch block magnet responds to the core so as to trigger the switch ...

Страница 6: ...y AL PF 3 4 F Std Installation Top Model HM 95 Ex HM 95H Ex HM 95V Ex HM 95VH Ex Process connection 100A JIS 10K RF Std 1 Socket Std Ambient Temperature 20 to 60 Max Process Temp 40 to 75 40 to 120 40 to 190 40 to 285 40 to 435 40 to 75 40 to 120 40 to 190 40 to 285 40 to 435 Max Process Pressure Up to 63kg 900 Up to 105kg 1500 Switch Type Micro Switch Contact Form SPDT DPDT Contact Rating Maximum...

Страница 7: ...inum Housing Ex Proof Displacer Flange Displacer Standard Protection Tube Side to Side Cover Base Cooling Fin Displacer Process Conn Flange Flange Flange Spring Holder Spring Holder Spring Holder Chain Wire Wire Guide Pipe Chamber Extension Spring Extension Spring Extension Spring ...

Страница 8: ...Ex Series Drain Parts Wetted Parts Float Cage Cage Flange Flange Flange Ball Valve Plug Gate Valve Globe Valve Float Standard Side to Bottom Side to Side Socket Socket Process Conn Flange Float Aluminum Housing Ex Proof Cover Base Cooling Fin ...

Страница 9: ...95 Ex Series HITROL CO LTD 9 HM 95V Ex Series Float Socket Cage Drain Valve Tee Elbow Socket Vent Valve Double Vent Valve Wetted Parts Plug Double Drain Valve Cover Base Cooling Fin Aluminum Housing Ex Proof ...

Страница 10: ...h is expressed in mm Process temperature Switch specification 공정온도 SWITCH 사양 120 AC 250V 15A DC 125V 0 5A 190 AC 250V 15A DC 125V 0 5A 285 AC 250V 5A DC 125V 0 5A 435 AC 250V 1A DC 125V 0 4A Float Size Minimum Specific Gravity Ø94 0 8 Ø114 0 5 Float Size Minimum Specific Gravity Ø94 0 8 HM 95 Series HM 95V Series Based on pressure 10kgf cm2 temperature of 120 Std Length HM 95 Series Float ...

Страница 11: ...x Series HITROL CO LTD 11 Some tolerances may occur with actual products Detail Dimensions The unit of length is expressed in mm 1F 2F 3F 4F Guide Pipe Version Chamber Version HM 90 Ex Series Contact composition ...

Страница 12: ...HM 90 95 Ex Series HITROL CO LTD 12 Some tolerances may occur with actual products The unit of length is expressed in mm HM 95 Ex Series HM 95V Ex Series ...

Страница 13: ...sferred to the instrument when installing the product First of all remove the product housing cover for wiring After that connect the wires to COM N O and N C terminals of switch block The housing is designed to prevent damage from dust or water and if necessary anti corrosion Epoxy Coat housing is optional COMMON C Normal Open NO Normal Close NC COMMON C Normal Open NO Normal Close NC DPDT wiring...

Страница 14: ...d wire inlet to prevent dust or rain from penetrating Also replace the sealing if it is old or damaged Exposure to excessive heat or humidity may damage the wire inlet insulation It may lead to short circuit so check the wiring and replace it if necessary in advance If the terminal is not tightened vibration may cause it to loosen Prepare a spare switch block so that the process can continue even ...

Страница 15: ...ct may directly lead to a failure When attaching the product to a vessel pay attention to prevent any damage to the assembly packings Check the level and presence of object to be measured in the vessel before removing it The product may be overheated so wear gloves to prevent burns If there is explosive gas in the atmosphere do not open the cover Make sure that any O ring or gasket is not damaged ...

Страница 16: ...microswitch of a switch block from the housing before wasting the product No part affects the environment so no special attention is required e g mercury switch Use the cable gland connection or metal pipe line lead in on the wire inlet and use a product with an equivalent ex proof certificate to connect it using the external line lead in method For an unused external line inlet use a closing plug...

Страница 17: ...ent protection by flameproof enclosures d IEC EN 60079 0 2018 Explosive atmospheres Part 0 Equipment General requirements IEC 60079 0 2017 EN 60079 1 2014 Explosive atmospheres Part 1 Equipment protection by flameproof enclosures d The composition of the product is as follows HM 9 Ex Only HM 90 Ex 1F 1 POINT 2F 2 POINT 3F 3 POINT 4F 4 POINT H High Temperature V Only HM 95V_Side Type 0 Displacer Ty...

Страница 18: ...akgol gil 98 TEL 82 31 950 9700 Headquarters and A S FAX 82 31 950 9796 9799 Headquarters and A S Do not apply a non ex proof product in an ex proof zone An ex proof product can be used where the environment and containers of the object to be measured are type 1 and 2 Read and understand the aforementioned and make sure that the temperature of the object to be measured does not exceed 120 for gene...

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