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  4. Introduction to the measurement principle video of thermal mass flow.
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  • Dec 02, 2025
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Dec 02, 2025

Introduction to the measurement principle video of thermal mass flow.

ITWジャパン ITWジャパン
When using a thermal mass flow meter, it is very important to understand its measurement principle. Setting high-precision and stable process conditions is not only essential but also very beneficial for troubleshooting and early detection. The sensor consists of a heater (H) placed in the center of the tube and temperature sensors (T1 and T2) positioned equidistantly on either side. The heater is continuously supplied with properly controlled power, generating heat. When there is no flow in the sensor tube, the heat from the heater is evenly transferred to temperature sensors T1 and T2, resulting in both being at the same temperature. However, when there is flow in the direction indicated by the arrows in the diagram, the fluid carries heat away from T1, causing its temperature to drop, while T2 receives heat, resulting in a temperature increase. The resulting temperature difference between T1 and T2 becomes a function of the mass flow rate of the fluid within the sensor tube. This is processed appropriately and output as an electrical signal representing the mass flow rate. (This is an excerpt from the original text.) https://www.youtube.com/watch?v=XKpX3rrt1qc [ITW Japan Co., Ltd. Brooks Instrument]
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Introduction to the Measurement Principle of Thermal Mass Flow Video (2019.12)
The Brooks Instrument 5800 series was released in the 1990s and has undergone continuous improvements to meet the demands of each era, including increased flow rates, compliance with various certifications, high-speed response through digitization, high precision, long-term stability, and the provision of service ports and support tools. It has now evolved into the SLA5800 series, inheriting its DNA, and is being renovated to meet the demands of a new era.
SLA5800 Series Elastomer-Sealed Thermal Mass Flow Controllers/Meters
Enhancing and streamlining mass flow control
Brooks Instrument Thermal Mass Flow Controllers & Meters for Gases - Theory of Operation (YouTube)
In this video, Brooks Instrument proudly presents the theory of operation behind our thermal MFCs (mass flow controllers), from our SLA Series.

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Thermal Mass Flow Controller/ Meter "SLA5800 Series"

Acquisition of certification from the High Pressure Gas Safety Institute (KHK). Simplification of the completion inspection procedures in the prefectures. Also obtained the type approval certificate for domestic explosion-proof (JPEx).

The thermal mass flow controller/meter "SLA5800 series" is equipped with gas control and measurement functions that are useful for research and development of carbon neutrality, and is compatible with gases such as hydrogen, methane, LNG, carbon dioxide, and ammonia. The "SLA5850 mass flow controller with normally closed valve" has obtained certification from the High-Pressure Gas Safety Institute of Japan (KHK), allowing for a very smooth introduction as the completion inspection in prefectures can be completed with just the submission of the certification. (It is also possible to respond with a flow meter.) 【Features】 ■ Obtained type certification for domestic explosion-proof (JPEx) from DEKRA (Applicable products: mass flow controllers/meters, pressure controllers) ■ Active in fields such as chemicals, petrochemicals, fuel cells, and life sciences ■ Flow range that covers a wide spectrum ■ Capable of handling multiple gases and flow ranges with a single unit *For more details, please refer to the catalog. Feel free to contact us with any inquiries.

  • Flow Meter
  • Flow Control
  • Safety Controller

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Mass Flow Controller/ Meter "SLAMf Series"

Durability that withstands harsh environments! Precision mass flow control that achieves excellent accuracy.

Dust, humidity, extreme temperatures, moisture, and other harsh conditions—no matter the environment, the 'SLAMf Series' elastomer seal thermal mass flow controllers/meters achieve high precision and long-term stability unique to the proven 'SLA5800 family' of meters and controllers. The specially designed NEMA4X/IP66 rated enclosure protects advanced digital electronic components, enabling stable and accurate measurement and control of gas/fluid mass flow essential for processes. 【Features】 ■ High durability enclosure rated NEMA4X / IP66 ■ Wide range of rated flow - from 0.003 to 2500 slpm ■ Compatible with a wide range of temperature and pressure conditions ■ Achieves excellent accuracy ■ Configurable multi-gas/multi-range functionality *For more details, please refer to the related link page or feel free to contact us.

  • Flow Meter
  • Flow Control

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Thermal Mass Flow Controller / Mass Flow Meter "SLA5800 Series"

Thermal Mass Flow Controller / Mass Flow Meter "SLA5800 Series"

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[Instruction Manual] Thermal Mass Flow 'SLA5800 Series'

[Instruction Manual] Thermal Mass Flow 'SLA5800 Series'

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Pressure Controller "SLA/SLAMf Series"

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Comprehensive Catalog Product Guide 'flow-pressure-vapor-guide'

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[YouTube Update] Differences in Cleansing Ingredients You Should Know Before Developing an Original Shampoo

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We have released a new video on our company’s YouTube channel. The theme of this video is "The World of Amino Acid-Based Shampoos." Amino acid-based shampoos have become popular in recent years, but the lather, feel, and finish can vary greatly depending on the cleansing ingredients used. In this video, we clearly explain the changes in user experience based on the differences in cleansing ingredients by comparing two types of amino acid-based shampoos. We hope you can use this as a hint for developing original shampoos and differentiation.

Jun 26, 2026

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When the sensor detects the car, the rotating light will turn on.

Ideal for entrances and exits of parking lots and stores! Notify pedestrians of vehicle departures with the light from the rotating lamp! Here is a proposal for a departure warning sensor! Free catalog available!

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[To the owners of parking lots and parking lot construction companies] "I’m worried about not colliding with pedestrians when exiting the parking lot..." Among vehicle entrances to parking lots, stores, residences, and factories, those particularly facing sidewalks or roadways are expected to pose risks of dangerous incidents such as collisions with pedestrians or between vehicles. To alleviate such concerns, Hotron proposes a [Vehicle Exit Warning Sensor] that detects vehicle departures using various sensors and alerts the surroundings with LED lights and buzzers. The device consists of a simple configuration of "Sensor" + "Controller" + "Switching Power Supply (24V)" + "LED Rotating Light." *Please note that a separate control panel is required to include the controller and switching power supply (24V) when using the exit warning system. *We kindly ask that customers arrange for the switching power supply (24V), LED rotating light, control panel, circuit breakers, etc. Since it can be retrofitted, it can also be used for existing parking lot entrances. We hope this will contribute to safer vehicle passage for everyone. ◎ For more details, please contact us or download the catalog.

Jun 26, 2026

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Metal Crack Repair: MS Method for Repairing Cracks and Fractures in Machinery Equipment

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  • CATALOG

Metal cracks are one of the concerns in equipment maintenance operations. Conventional welding repair methods can alter the base material around the crack due to heat, leading to residual stress and deformation, which always carries the risk of "crack recurrence" and "secondary damage." Hinode Water Supply Equipment Co., Ltd.'s "Mechanical Stitching Method" is a new technique that allows for metal crack repair without applying heat. By using special bolts and reinforcement plates, the crack is physically removed without affecting the base material with heat. Repairs can be made even in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. For more details, please contact us or download the catalog.

Jun 26, 2026

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[Video Manual Guide] We will clearly explain how to connect the wireless set that links the bed exit sensor and nurse call system through video!

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Hotron, which manufactures and sells sensors, provides bed exit sensors for hospitals, nursing, and care facilities. Hotron offers easy-to-understand video guidance on how to use the bed exit sensors wirelessly and how to set up device connections! ▼ Video Manual (YouTube) https://www.youtube.com/playlist?list=PLNVA4mTrZDqtJa6MfFRZQxwtfCSnAfxVy 【Bed Exit Sensors】 ○ Non-contact infrared sensor, simply place it - Pole-kun HB-H1 ○ Mat sensor, foldable thin mat - Mat-kun HB-UST ○ Body movement call - Ugo-kun HB-TV3 ○ Body movement call for wheelchairs - Ayumi-chan HB-WTV3 【Options】 ○ Nurse call linked wireless set - Wireless set (transmitter/receiver) HB-RS/HB-RJ ◎ For more information about the products, please contact us or download the catalog.

Jun 25, 2026

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Metal Crack Repair: MS Method for Repairing Cracks and Fractures in Machinery Equipment

  • NEW
  • PRODUCT

Metal cracks are one of the concerns in equipment maintenance operations. Conventional welding methods for repairs can cause changes in the base material around the crack due to heat, leading to residual stress and deformation, which always carries the risk of "crack recurrence" and "secondary damage." Hinode Water Supply Equipment Co., Ltd.'s "Mechanical Stitching Method" is a new technique that allows for the repair of metal cracks without applying heat. By using special bolts and reinforcement plates, the crack is physically removed without affecting the base material at all. Repairs can be made even in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. For more details, please contact us or download the catalog.

Jun 25, 2026

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