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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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AAEON ArrowLake equipped industrial COM module Type 6 standard

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Features: ● Equipped with Intel Core Ultra 7 255H/7 155H/5 225H/5 125H ● LPDDR5x 16GB/32GB/64GB onboard ● M.2 NVMe 256GB onboard ● USB 2.0 x 8, USB 3.2 (10Gbps) x 4 ● PCIe Gen 4 [x8] x 1, PCIe Gen 3 [x1] x 4, PCIe Gen 3 [x4] x 1 (2 lanes co-lay with SATA; BOM option) ● 2.5GbE x 2 ● COM-HPC Mini standard, size 95mm x 70mm ● Optional items ECB-980A: Development carrier board HPC-ARHm-FAN01: CPU fan HPC-ARHm-HSP01: Heat spreader (Note: heat dissipation is required in the enclosure)

Mar 19, 2026

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AAEON ArrowLake-equipped industrial COM module COM-HPC R1.2 Mini standard

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Features: ● Equipped with Jetson AGX Orin 32GB/64GB ● Gigabit LAN ×1, 10Gigabit LAN ×1 ● USB 3.2 Gen 2 (Type-A) ×4 ● DB-9 connector ×1 (for DIO 8 channels) ● DB-9 connector ×2 (supports RS-232/422/485: Rx/Tx/RTS/CTS) ● Jetpack 6.0.0 pre-installed

Mar 19, 2026

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AAEON Amston Lake equipped industrial COM module NANOCOM-ASL Type 10 standard

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Features: ● Equipped with Intel Atom x7835RE/x7433RE ● LPDDR5x 8GB/16GB onboard ● eMMC 32GB/64GB onboard ● LVDS x 1, DDI x 1 ● USB 2.0 x 8, USB 3.2 Gen 2 x 2 ● PCIe x1 x 4 ● COMe Type 10 standard, 84mm x 55mm size ● Operating temperature -40 to 85℃ ● Optional items ECB-920A-0001: Development carrier board NANOCOM-ADN-FAN01: CPU fan NANOCOM-ADN-HSP01: Heat spreader (※ Heat dissipation is required in the enclosure)

Mar 19, 2026

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New feature "Visitor Access Management" added, digitizing reception operations with facial recognition.

CyberLink adds new feature "Visitor Access Management" to FaceMe Security, digitizing reception tasks with facial recognition.

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■ FaceMe Security "Visitor Access Management" Main Features and Characteristics < Set Access Period for Each Visitor > - Individual settings for the dates and times visitors can enter - Access periods can be optimized according to the visitor's situation, whether for short visits or long stays. < Two Types of Authentication Methods to Accommodate Various Scenarios > ▶ Authentication via IP Camera - Enables authentication from a distance, achieving facial recognition without the need to disembark. ▶ Authentication via Facial Recognition Device (tablets, etc.) - Ideal for entry scenes such as reception or security posts. Can be flexibly utilized depending on the installation location and operation. - Allows for on-the-spot registration of facial information using the device, enabling smooth responses to sudden visits or unexpected guests. < Real-Time Notifications Supporting Security and Reception Operations > - Real-time notifications of visitor and employee classifications, authorization expiration, and authentication status. - Prevents delays and oversights in verification, balancing the reduction of security staff workload with enhanced security. These features resolve issues arising from visual checks, logbooks, and IC card operations, simultaneously achieving enhanced security and improved efficiency in reception and security operations.

Mar 19, 2026

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[Cast Iron Crack] We will repair cracks in metal products without applying heat.

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The "Mechanical Stitching Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed, and repairs are made without causing any thermal impact on the base material. Repairs can be carried out even in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is kept to a minimum. ◎ For more details, please contact us. ◎ If a detailed technical explanation is needed, please contact us.

Mar 19, 2026

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