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This document introduces particle counters and large particles. It addresses the question, "Are there no large particles in clean rooms?" as well as issues such as "Is it just that they are not being measured?" and includes references on gravitational settling, the particle size of contaminants that should be managed (e.g., thin films, laminating, painting processes), among others. It responds to the misconception that particle counters can handle everything from small to large particle sizes. [Contents] ■ Are there no large particles in clean rooms? ■ Is it just that they are not being measured? ■ Reference 1: What about the gravitational settling of particles? ■ Reference 2: What particle sizes of contaminants should be managed? (e.g., thin films, laminating, painting processes) ■ Reference 3: Real-time mode = seeing what is happening right in front of you *For more details, please refer to the PDF document or feel free to contact us.

This document introduces air quality measurement using next-generation particle counters. It covers the impact of fine particles on human health and particle size, and features the RoomOptical Particle Counter and next-generation technologies from Particles Plus. 【Contents (Excerpt)】 ■Why Measure Airborne Particulates? ■Dirty air leads to economic losses ■Impact of fine particles on human health and particle size ■Optical Particle Counter moves to the next generation ■Next-generation technology from Particles Plus *For more details, please refer to the PDF document or feel free to contact us.

This document introduces real-time measurement particle counters. It includes the current concepts of particle counters (OPC) in the deposition industry, key factors for improving appearance quality, the size of defects required for optical films in recent years, and the sizes of contaminants that should be managed in thin film coatings. Please utilize this information when using particle counters. 【Contents (excerpt)】 ■ Current concepts of particle counters (OPC) in the deposition industry ■ Key factors for improving appearance quality ■ For appearance improvement… ■ Measurement examples ■ The size of defects required for optical films in recent years *For more details, please refer to the PDF document or feel free to contact us.

This document introduces information on how to more effectively utilize particle counters in production environments. It covers general topics such as "What is a particle counter?" and "In what markets is it used?" as well as a summary and conclusion regarding large particle measurement, presenting questions and explanations about why things are as they are. [Contents (excerpt)] ■ Types of particle counters ■ Optical particle counters (OPC) ■ Measurement particle sizes and upper concentration limits based on air cleanliness classes ■ Particle size and industry mapping ■ Common applications of OPCs *For more details, please refer to the PDF document or feel free to contact us.

This document is the user manual for the advanced handheld particle counter, the "8000 Series." It includes precautions regarding the power supply, connection to the AC main power, installation of the battery, and information on the power and charging status LED (power button). We provide detailed descriptions and instructions for the proper use and operation of this product, along with its rich features. [Contents (excerpt)] ■ Important safety information (safety warnings and cautions) ■ Ergonomic recommendations (to avoid ergonomic potential risks) ■ Warnings regarding the use of wireless devices ■ Overview ■ Specifications *For more details, please refer to the PDF document or feel free to contact us.

Our 2.83 LPM sensor has a maximum measurable concentration of 1,060 particles/CC (10% counting loss rate), with almost no measurement error even in high concentration areas (indoor, road intersections). Experimental reports on measurements of incense smoke, saline solution, and humidifiers have been presented at conferences (2022 JACA, 2022 AAC, 2023 JACA, Air Purification Association Journal, Volume 60, Issue 6, special article, etc.). It is capable of measuring not only in clean rooms but also in general indoor environments and high concentration particle environments like atmospheric conditions, enabling seamless hands-on simultaneous processing from understanding contamination hotspots to fieldwork. 【Features】 ■ No interruptions ■ Minimum measurement time of 1 second ■ Real-time meter providing real-time graphs right in front of you ■ Large lithium battery ➡ over 10 hours of continuous measurement ■ Large capacity memory of 45,000 (all data) 1 second measurement + large capacity memory + 10 hours of operation = excellent usability ■ Direct operation, storage, data processing, and editing from a computer using the included IMS software ■ With the optional AMOSYS-2K software, easily build a multi-point monitoring system with Ethernet connection *For more details, please refer to the PDF document or feel free to contact us.

This product is a particle counter that corresponds to a particle concentration of 1,060,000/L (30,000,000CF). It allows for continuous measurement for 10 hours on battery, is easy to operate with a touch panel, and can measure in various environments including indoors, the atmosphere, clean rooms, general manufacturing, and living environments—wherever and whenever measurement is needed. It can measure from one second and enables measurements in extremely diverse environments. The handheld model is ideal for fieldwork. Handheld models include "AT-H303," "AT-H306," and "AT-H503." Benchtop models include "AT-B306" and "AT-B506," and remote types include "AT-R306," "AT-R306P," and "AT-506." 【Features】 ■ Continuous measurement for 10 hours on battery ■ Easy operation with a touch panel ■ Capable of measuring in a wide range of environments ■ Supports particle concentration of 1,060,000/L (30,000,000CF) *For more details, please refer to the PDF document or feel free to contact us.

The "Model 5000/7000 Series" is a remote-type particle counter that can be installed on walls or columns, used on a tabletop, operated directly from the unit, or remotely controlled from a computer. The AM with OSYS-2K software builds a multi-point monitoring system via Ethernet. Since it uses Ethernet, setup is easy, and it can flexibly accommodate layout changes. The measurement values are displayed as the total count of particles above the set particle size or as values between particle sizes. Additionally, in real-time meter mode, the particle counter graphically displays the transition of counts every second directly on the screen. 【Features】 ■ Real-time meter ■ High concentration support: 30,000,000/CF, 1,060/CC (5301, 7301 series) ■ Ultra-high concentration support: 70,800,000/CC, 2,500/CC (5300, 7300 series) ■ IMS: Direct PC control ■ AMOSYS-2K: Builds a multi-point monitoring system via Ethernet. ■ Open collector for alarm output (drives a patrol light) *For more details, please refer to the PDF materials or feel free to contact us.

The "Model 8000 Series" is a completely new handheld particle counter that features a sensor structure not found in other companies, paving the way for a new generation. It's okay! There are no issues outside of clean rooms! The applications are vast, ranging from clean rooms, near work areas, indoor environments, operating rooms, intersections, occupational safety and health, to oil mist, with the capability to detect large particles up to 30m. Let's focus on the three "C's": Critical Timing = When? Critical Point = Where? Critical Size = What is the target particle diameter? Real-time measurement (1-second intervals, real-time graphs), 10-hour battery operation, 45,000 memory capacity, variable particle diameter (0.01um steps), and high concentration compatibility. 【Features】Real-time graph ■ High concentration compatibility: Maximum measurable concentration of 50,000 counts/second (1,060 particles/cc) → 30,000,000/CF 8300 is 2,500 particles/cc ➡ approximately 78,000,000/CF ■ Temperature and humidity, atmospheric pressure, mass concentration conversion (PM) ■ IMS: Controlled from a computer, data collection, graphic rendering ■ Printer linkage *For more details, please refer to the PDF materials or feel free to contact us.

This document introduces large particle contamination in manufacturing environments. It covers factors contributing to large particles, characteristics (behavior) based on particle size, and references such as gravitational settling and a summary of large particle characteristics. Please use this information when you are facing issues with large particle contamination in manufacturing environments. [Contents] ■ Factors of large particles ■ Understanding characteristics (behavior) based on particle size ■ Reference: Gravitational settling ■ Summary of large particle characteristics ■ Measured examples *For more details, please refer to the PDF document or feel free to contact us.

We would like to introduce the products we handle. Equipped with the latest optical systems, flow systems, multiple high-end controllers, graphic controllers, high-speed programmable logic, and intelligent peripherals. Simultaneous parallel processing during measurement is stress-free. Compatible with clean rooms and atmospheric environments, we have achieved a maximum measurable concentration of over 15,000,000 particles/CF with advanced technology. The particle counter is moving to the next generation. 【Features】 ■ Compatible with clean rooms, atmospheric environments, and work environments ■ Achieves a maximum measurable concentration of over 15,000,000 particles/CF with advanced technology ■ Real-time meter (graphical display of status every second) Never miss the crime scene (at that moment) or the time of the crime (at that time) ■ 4.3-inch color touch LCD with touch operations using the included stylus or fingers *For more details, please refer to the PDF document or feel free to contact us.

This document is the user manual for the "7000 Series" handled by our company. It includes important safety information (safety warnings and precautions), an overview, specifications, precautions regarding power supply, and connections to the AC main power. We provide detailed descriptions and instructions for the proper use and operation of this product, along with its rich features. [Contents (excerpt)] ■ Important safety information (safety warnings and precautions) ■ Ergonomic recommendations (to avoid potential ergonomic risks) ■ Warnings regarding the use of wireless devices ■ Overview ■ Specifications *For more details, please refer to the PDF document or feel free to contact us.

This document presents considerations on particle settling. It includes information on the settling distance of particles per unit time and calculated values for settling distances. We have provided clear explanations using graphs and tables, so please take a look. However, this is only an example concerning solid particles. Droplets are excluded due to their significant interaction with the environment. [Contents] ■ Calculated values for particle settling distance per unit time - Settling time in the vertical direction can be calculated by particle size (in other words, the time they remain suspended) - Gravitational settling velocity of fine particles *For more details, please refer to the PDF document or feel free to contact us.

What are particles? This document provides a detailed explanation of the properties of particles tracked by particle counters, the principles of filters, and more. It includes information on particle shapes and sizes, the relationship between particles and particle counters, the characteristics of air filters, and four key factors, along with diagrams, tables, and graphs. We encourage you to read it. 【Contents】 1. Particle shapes and sizes 2. Particles and particle counters 3. Types of particles in the atmosphere 4. Number concentration distribution and mass concentration distribution 5. Representative particle diameters *For more details, please refer to the PDF document or feel free to contact us.

The "AQM Series" utilizes a high-concentration light scattering particle sensor to simultaneously measure and display/output particle count, PM equivalent values, TVOC, CO2, temperature, humidity, and atmospheric pressure. Leveraging its concentration response characteristic of 70,800,000 particles/CF, it expands air quality measurement into areas such as clean rooms, indoor environments, atmospheric environments, work environments, and exposure monitoring. The PM display is calculated from the particle size and number concentration of individual particles, allowing not only for the understanding of mass below the set particle size but also for outputting particle size distribution and short-term fluctuations (in 1-second intervals). 【Lineup】The model types have been integrated and changed. Inquiries can be made for any model type. ■ 5301AQM-LF ➡ 5300AQM-1 (particles, atmospheric pressure, temperature, CO2) AC power ■ 5302AQM-LF ➡ 5300AQM-2 (particles, atmospheric pressure, temperature, CO2, TVOC) AC power ■ 7301AQM-LF ➡ 7300AQM-1 (particles, atmospheric pressure, temperature, CO2), battery-operated for 8 hours ■ 7302AQM-LF ➡ 7300AQM-1 (particles, atmospheric pressure, temperature, CO2, TVOC), battery-operated for 8 hours *For more details, please refer to the PDF document or feel free to contact us.

The Particle Plus large particle-compatible particle counter detects particles ranging from 0.5 µm to over 30.0 µm. The particle counter measures airborne particles "easily," "in real-time," "by anyone," and "on-site." However, only particles with small diameters can be considered airborne, as they are affected by Brownian motion from air molecules and experience air resistance, allowing them to remain suspended for long periods. In contrast, larger particles do not continue to float and settle (fall) quickly, and they have a low occurrence frequency that does not align with the particle size distribution pattern of atmospheric dust. It is understandable that there are concerns about the phenomenon of contamination by large particles in clean rooms, as well as the issue of having small particles being acceptable while large particles are not. For a particle counter, particles that are difficult to suspend and those that fall outside the premise of isokinetic sampling are very challenging to measure. As particles increase in size, the factors contributing to gravitational settling significantly increase compared to suspension. The particle counter cannot draw in falling particles by bending their trajectory. Opening the sampling inlet and waiting for falling particles to enter is purely a matter of chance. It is essential to measure this accurately. We are always available to assist, not just for demonstrations of the measuring instrument.

This document is a collection of case studies related to aerosols, including cleanliness monitoring and exposure assessment using a particle counter (OPC). It introduces numerous examples, starting with improvements in production environments, measurements in optical component deposition clean rooms, and verification of instrument accuracy in indoor environments. Additionally, it includes examples of air pollution monitoring systems in Phnom Penh and thermal countermeasures for air pollution monitoring sensors in the city. Please make use of this information. 【Contents (partial)】 ■ Particle counter (OPC) for both clean rooms and the atmosphere ■ Examples of production environment improvements ■ Measurement examples in optical component deposition clean rooms ■ Verification of instrument accuracy in indoor environments at JSPS Bangkok Office ■ Measurement at ASOK intersection in Bangkok, Thailand *For more details, please download the PDF or feel free to contact us.