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HM-30, 90 Series
HITROL CO., LTD.
HEAD OFFICE.FACTORY.R&D INSTITUDE
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
DISPLACER TYPE LEVEL SWITCH
HM-30, 90 Series
Doc. no. : HM30&90_IM_Eng_Rev. 4.3
Issue date : 2021. 10
HITROL CO., LTD.
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Summary of Contents for Hitron HM-90 Series
- Page 1 HM-30, 90 Series HITROL CO., LTD. HEAD OFFICE.FACTORY.R&D INSTITUDE 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 DISPLACER TYPE LEVEL SWITCH HM-30, 90 Series Doc. no. : HM30&90_IM_Eng_Rev. 4.3 Issue date : 2021. 10 HITROL CO., LTD.
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Page 2: Table Of Contents
HM-30, 90 Series Table of Contents Overview ..............3 Precautions for Removal........15 Operating Principles ..........3 Precautions for Transportation and Assembly ..15 Characteristic ............. 3 Precautions for Grounding ......... 15 Applications ............. 4 Precautions for Inserted External Wire (Ex-proof) .. 15 Specification ............. -
Page 3: Overview
HM-30, 90 Series HM-30, 90 Series is a level detector with ON/OFF contact signals to detect upper and lower limits Overview of vessel. It is firmly designed to be used in high temperature and pressure with excellent reliability. It is mainly used as a water level detector for boilers of power plants and refining equipment of petrochemical plants. -
Page 4: Applications
HM-30, 90 Series Applications ■ Feedwater heater ■ Steam drum ■ Condensate drip pot ■ Flash tank ■ Separator ■ Receivers ■ Accumulator Specification Weather-Proof Version Model HM-30 HM-90 HM-90H Installation Ambient Temperature -20˚C ~ +80˚C Process Temperature Max. Max. Max. -
Page 5: Process Condition Rating
B = Good: The product can handle the conditions, but it may be affected by performance, so it should be noted for maintenance. (Cleaning) C = Poor: The product does not meet the conditions. ■ HM-90 Series Product Configuration Carbon Steel Housing (Weather-Proof) -
Page 6: Dimensions And Detailed Technical Specifications
HM-30, 90 Series Dimensions Weather-Proof Version The dimensions on the following pages are indicated in [mm]. and Detailed Process Technical ~120˚C ~200˚C ~350˚C / ~500˚C ~500˚C (Opt.) Temp. Specifications C.S + Aluminum Housing (S/W 1ea) C.S + Aluminum Housing (S/W 2~3ea) C.S + Aluminum Housing... - Page 7 HM-30, 90 Series Process ~120˚C ~200˚C ~350˚C / ~500˚C ~500˚C (Opt.) Temp. Aluminum Housing (S/W 1ea) Aluminum Housing (S/W 2~3ea) Aluminum Housing (S/W 4ea) * Only applied for up to 350˚C. * Please contact our technical department when applying the internal terminal block. Some tolerances may occur with actual products.
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Page 8: Ex-Proof Version
HM-30, 90 Series Ex-Proof Version Process ~120˚C ~200˚C ~300˚C ~350˚C Temp. Aluminum Housing (S/W 1ea) Aluminum Housing (S/W 2~3ea) Aluminum Housing (S/W 4ea) Some tolerances may occur with actual products. HITROL CO., LTD. -
Page 9: Contact Form
HM-30, 90 Series Contact Form Some tolerances may occur with actual products. HITROL CO., LTD. -
Page 10: Guide Pipe Version
HM-30, 90 Series Guide Pipe Version HM-90A Chamber Version HM-90B Some tolerances may occur with actual products. HITROL CO., LTD. -
Page 11: Switch Action And Specification
HM-30, 90 Series Switch ■ Switch Action The core rises within the enclosing tube because of buoyancy when the level of Action and measure object rises and the displacer is submerged. The magnet which is connected Specification with the switch responds to trigger the switch when the core rises. Snap switch Core Magnet... -
Page 12: Wiring
HM-30, 90 Series Wiring First of all, remove the product housing cover for wiring. For High alarm, connect the wires to the terminal COM-N.O of the switch block. For Low alarm, connect the wires to the terminal COM-N.C of the switch block. For H/L Control, connect to COM-N.C for water supply control and COM-N.O for water drainage control. -
Page 13: Installation
HM-30, 90 Series Installation ■ Conditions for Installation and Adjustment - Default connection is top type but it is customized to side to side, side to bottom. According to the dimensioned drawing, the connection and main unit must be leveled and it is recommended to install a bracket to support the product if necessary. -
Page 14: Precautions For Installation
HM-30, 90 Series Precautions ■ Use the same standard flange or screw. ■ 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 Installation temperature of content and pressure of vessel.) ■... -
Page 15: Precautions For Removal
HM-30, 90 Series ■ Check the level and presence of measure object in the tank before removing it. Precautions ■ Wear gloves when removing it, to prevent a burn. ■ If there is explosive gas atmosphere, do not open the cover. Removal ■... -
Page 16: Safety And Environment
HM-30, 90 Series Safety and ■ Precautions for Use - Make sure to connect the product and vessel using required tools for sure. Environment - Keep the lock key safe and make sure that it is locked. - Do not apply high impact to the product. ■... -
Page 17: User Training
HM-30, 90 Series Ex-proof Version (Certification No.: 09-AV2BO-0097~0099) User Understand the aforementioned and do not exceed 120℃ and 500℃ respectively for the Training liquid in the general and high-temperature vessels to use the product. In addition, make sure that the ambient temperature of housing is kept at -20 - +80℃. (However, Ex-Proof product is limited to a maximum temperature of 350℃...
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