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HM-95 Series

HITROL CO., LTD.

Failure  Check

Cautions  for
Removal

Transportation  and
Cautions  for
Assembly

Cautions  for
Installation

Cautions for
Grounding

If there is a problem with operation, check the following first.

■ Remove the cover and check if the output of the micro switch works fine.

Connect a tester to COM and NO or NC to check the output, and if there is a problem,

replace the micro switch.

■ After checking the micro switch, remove the product from the vessel and move the float

up and down to see if the switch block magnet responds to the core.

■ Recheck if the float and level of object to be measured are leveled.

■ Recheck if the float is positioned on top of the object to be measured.

■ Pay special attention to prevent any impact on the product during transport or assembly.

The impact 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 while opening or closing the cover.

■ To remove the cover of an ex-proof product, release the lock key first.

■ Use the same standard flange or screws.

■ Make sure to insert washers between bolts and nuts to prevent loosening.

■ Make sure to insert gaskets between flanges.

(Select the gaskets in consideration of the temperature of the content and the pressure of the

container.)

■ Install an ex-proof product in an ex-proof zone.

Make sure that the product would not be subject to any high impact during transport

or assembly.

External ground is located on top of the cable entry, and the grounding wire to connect e

xternal ground must be 4 mm

(4 mm SQ). (Internal ground is connected before shipment.)

Make sure to insert a washer if the terminal lug is removed from the

ground terminal and then reconnected (to prevent loosening).

Содержание HM-95 Series

Страница 1: ...FICE FACTORY R D INSTITUTE HITROL CO LTD 141 Palhakgol gil Jori eup Paju si Gyeonggi do Korea TEL 00 82 31 950 9700 FAX 00 82 31 943 5600 www hitrol com INSTRUCTION MANUAL Float Type Level Switch HM 95 Series Doc no HM95_IM_Eng_Rev 1 Issue date 2020 03 ...

Страница 2: ...Housing 8 Float 8 HM 95 Series 9 HM 95V Series 10 Switch Specifications by Process Temperature 11 Wiring 11 12 HM 95 Series 11 HM 95V Series 12 Installation 12 13 Maintenance 13 Failure Check 14 Cautions for Removal 14 Cautions for Transportation and Assembly 14 Cautions for Installation 14 Cautions for Grounding 14 Cautions for Inserted External Wire 15 Safety and Environment 15 Label 15 Labellin...

Страница 3: ...nd low with ON and OFF contacts With its solid structure and high reliability it is designed to be used with high temperature and pressure It is mainly used for boilers of power plants and refining equipment of petrochemical plants 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 ...

Страница 4: ... the 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 Enclosing Tube 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 5: ... Contact Form SPDT DPDT Enclosure Weatherproof IP65 Material Float 316L Cage Opt C S 304 316 L Others Housing Cable Entry C S PF 3 4 F AL PF 3 4 F Others Installation Top Top and Bottom Side to Side Model HM 95 Ex HM 95H Ex HM 95V Ex HM 95VH Ex Process Connection 100A JIS 10K RF Others 1 Socket Others Ambient Temperature 20 C to 80 C Max Process Temp 40 to 12 0 40 to 200 40 to 300 40 to 350 40 to ...

Страница 6: ...rain Parts Wetted Parts Aluminum Housing Weatherproof Ex Proof Aluminum Housing Terminal Box Weatherproof 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 Terminal Box Cover Base Cooling Fin Cover Base Terminal Box Cooling Fin ...

Страница 7: ... Valve Double Vent Valve Aluminum Housing Weatherproof Ex Proof Aluminum Housing Terminal Box Weatherproof Carbon Steel Housing Weatherproof Carbon Steel Housing Terminal Box Weatherproof Wetted Parts Plug Double Drain Valve Terminal Box Cover Base Cooling Fin Cover Base Terminal Box Cooling Fin ...

Страница 8: ...Gravity Ø94 0 8 Ø114 0 5 Float Size Minimum Specific Gravity Ø94 0 8 Carbon Steel Housing Weatherproof Float HM 95 Series HM 95V Series Aluminum Housing Weatherproof Aluminum Housing Ex Proof Based on pressure of 10 kgf cm2 temperature of 120 C Standard length 120 200 350 500 120 200 350 500 120 200 300 350 ...

Страница 9: ...HM 95 Series HITROL CO LTD 9 Unit of length is mm HM 95 Series HM 95H Ex HM 95H HM 95 Ex HM 95 HM 95BH Ex HM 95BH HM 95B Ex HM 95B ...

Страница 10: ...HM 95 Series HITROL CO LTD 10 Unit of length is mm HM 95V Series HM 95V Ex HM 95VH Ex HM 95VH HM 95V ...

Страница 11: ...l of the switch block as necessary COMMON COM Close on High Level N O Close on Low Level N C COMMON COM Close on High Level N O Close on Low Level N C DPDT Wiring SPDT Wiring COMMON COM Close on High Level N O Close on Low Level N C AC 250V 5A DC 125V 0 5 A Terminal Box AC 250V 1A DC 125V 0 4 A HM 95 Series Opt Type Std Type Opt Type Std Type Contact Rating Specifications of Temperature and Contac...

Страница 12: ... main unit must be leveled Also it is recommended to install a bracket to support the product if necessary Vessel Isolation Valve Isolation Valve Vessel HM 95 HM 95V COMMON COM Close on Low Level N O Close on High Level N C COMMON COM Close on Low Level N O Close on High Level N C DPDT Wiring SPDT Wiring COMMON COM Close on Low Level N O Close on High Level N C 300 600 300 600 HM 95V Series ...

Страница 13: ...re inlet insulation It may lead to short circuit so check the wiring and replace it if necessary in a dvance If the terminal is not tightened vibration may cause it to loosen Prepare a spare switch block so that the process can continue even if there is a problem with the switch block The product can be removed from the vessel to check the contact of level swit ch using liquid e g water and then r...

Страница 14: ...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 while opening or closing the cover To remove the cover of an ex proof product release the lock key first Use ...

Страница 15: ...tch 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 with an...

Страница 16: ...943 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 liquid inside the co ntainers are of zone 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 general purpose or 500 for high temperatures For an ex proof type the maxi...

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