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In recent years, OPC (Optical Particle Counter) is expanding its use beyond clean rooms (CR), that is, into new settings such as work environments, indoor environments, and atmospheric environments. This document considers new applications of OPC that are not limited to tools for monitoring CR cleanliness. We have reprinted an article published in the Clean Technology magazine. Please take a moment to read it. [Contents] ■ Introduction ■ Overview of OPC as a cleanliness monitoring device for CR ■ New settings, environments, and applications for OPC ■ Suggestions for new applications ■ Conclusion *For more details, please refer to the PDF document or feel free to contact us.

Until now, particle counters were thought to only be capable of suction sampling under atmospheric pressure due to the structure of the sensors, and were unable to measure particles in compressed air or gas. On the other hand, with the institutionalization of HACCP and the transition to ISO 22000 (June 2021), it has become necessary to manage dust, bacteria, water, and oil for gases that come into direct or indirect contact with food. Additionally, there is a significant demand for cleanliness monitoring in pneumatic systems such as ProAir. The Particle Plus 'Model 5301C・5501C' has achieved direct measurement of particles in pressurized air through its unique self-compensating free jet sensor. 【Features】 ■ Self-compensating free jet sensor adopted ■ Six selectable particle size settings ■ Data collection in 1-second intervals (45,000 logs) ■ Real-time meter ■ Multi-point monitoring software AMOSYS *For more details, please refer to the PDF document or feel free to contact us.

This document introduces "Particle Measurement in Pressurized Air Using Self-Compensating Free Jet Sensors." It includes detailed sections such as "Background of Development," "Sensor Structure of the New Particle Counter," and "Particle Size Distribution of Measured Particles," illustrated with figures and graphs. We encourage you to read it. 【Contents (partial)】 ■ Background of Development – Legal Revisions, Standard Updates ■ Selection of Particle Counters ■ Background – Cleanliness Management of Pressurized Air (Food Factories) ■ Sensor Structure of the New Particle Counter ■ New Particle Sensor – CFD Analysis Data *For more details, please refer to the PDF document or feel free to contact us.

This document introduces "Particle Counters and Large Particles." It includes detailed information on topics such as "Are there no large particles in clean rooms?" and "Key points for measuring large particles." Please take a moment to read it. 【Contents】 ■ Are there no large particles in clean rooms? ■ Is it just that they are not being measured? ■ Key points for measuring large particles *For more details, please refer to the PDF document or feel free to contact us.

This document explains the conditions required for particle counters that are currently in demand. Particle counters are no longer limited to clean rooms. They can easily capture the generation and fluctuations of aerosols anytime and anywhere, from clean rooms to oil mist environments. They measure everything from high purity to ultra-high concentrations and large particles. Therefore, they must be tough. It includes the functions required for tools in manufacturing environments, work processes, and living environments, as well as "high concentration testing," "key points for measuring large particles," and more. Detailed explanations are provided using graphs. Please take a moment to read it. [Contents] ■ Functions required for tools in manufacturing environments, work processes, and living environments ■ High concentration testing - 1 by Model 8306 ■ High concentration testing - 2 (simultaneous measurement) ■ Key points for measuring large particles ■ Observation of airborne particles from breathing in the bedroom using IMS software *For more details, please refer to the PDF document or feel free to contact us.

This document reports on the applicability of measuring particles in pressurized air using a new OPC. It provides an explanation in a paper format regarding the "new particle counter," "performance evaluation (measurement of particles in pressurized air)," "experimental results and discussion," and more. It includes images and graphs, making it an easy-to-understand document. Please take a moment to read it. 【Contents】 1. Introduction 2. New Particle Counter 3. Performance Evaluation (Measurement of Particles in Pressurized Air) 4. Experimental Results and Discussion 5. Conclusion 6. Challenges *For more details, please refer to the PDF document or feel free to contact us.

The "5000-LF Series (Old Model)" is a particle counter designed for ultra-high concentration applications. *Model numbers have been changed: 5301-LF → 5300, 5501LF → 5500 (non-pump type); 5301P-LF → 5300P, 5501P-LF → 5500P (pump type). It can be installed on walls or columns, used on a tabletop, operated directly from the unit, or remotely monitored and controlled from a computer. The particle size classification is 6 channels, user-configurable. Regardless of what anyone says, it supports ultra-high concentrations (2,500 particles/cc). It is possible to prepare up to 3 calibrated spare sensors. Although the sensor structure is resistant to dirt, it can still get dirty, so having spare sensors that can be replaced on-site provides peace of mind. **Features:** - Flow rate: 1.2 L/min. - Ultra-high concentration support (from clean rooms to ultra-high particle environments) - Calibrated spare sensor system (up to 3 sensors per counter) factory option - Alarm external output (open collector) factory option - Maximum measurable concentration: approximately 70,800,000 particles/CF (2,500 particles/cc) *For more details, please refer to the documentation. Feel free to contact us with any inquiries.

The model has been changed: 7301-LF to 7300, and 7501 to 7500. The 7300/75000 is a particle counter that can be set up on-site on a table or camera stand, allowing for standalone operation of the main unit, remote operation from a computer, and multi-point monitoring. It is a cleanroom-compatible particle counter that also supports ultra-high concentration particle measurement. It simultaneously measures temperature, humidity, and atmospheric pressure, and can convert from particle number concentration to mass concentration. The real-time meter can graph the trend of detected particle counts every second directly on the main unit's display. The pump is a newly developed dedicated pump that achieves long life and quiet operation. Additionally, due to its high concentration capability, the sensor may become dirty. For such cases, having a calibrated spare sensor ready allows for sensor replacement on-site, and the dirty sensor can be cleaned by our company. ■ Ultra-high concentration capability = maximum measurable concentration of 2,500 particles/cc (70,800,000/CF) ■ Flow rate 1.2 L/min. ■ Calibrated spare sensor system ■ 10-hour battery operation and long-life pump *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 light scattering particle sensor "9000 Series" measures from 0.3μm (or 0.5μm) and provides information on aerosol number concentration, particle size distribution, and short-term fluctuations and changes. Utilizing the advantages of in-situ, real-time light scattering methods, it demonstrates its power in clean rooms, atmospheric environments, indoor environments, and exposure experiments. The particle size range can be set to any particle size classification (up to 30) between, for example, 0.3μm and 2.5μm, allowing for more detailed tracking of particle size distribution. Additionally, the large particle type can accommodate particles up to 30μm. It enables rapid understanding of particle behavior and identification of sources, facilitating the subdivision of particle size ranges and making mass conversion easier. 【Main Specifications】 ■ Measurable particle size range: 0.3~10.0μm (or 0.5~10.0μm, 0.5~30.0μm) ■ Number of particle sizes: Up to 30 particle sizes (configurable from 6 to 30 stages within the above particle size range, with arbitrary settings for particle size, number of classifications, and size range) ■ Flow rate: 1.2L/min, 2.83L/min, 28.3L/min ■ Measurement time: Minimum 1 second to maximum 9999 hours per measurement ■ Memory capacity: 65,000 ■ Optional sensor: Environmental sensor probe (temperature, humidity, atmospheric pressure, CO2) *Please feel free to contact us anytime for inquiries.

Introducing the ultra-high concentration handheld particle counters 'Model 8300/8500'. Understanding particle dispersion and monitoring environmental pollution levels is not only necessary in clean rooms. Regardless of the cleanliness level, managing the required environmental particle concentration levels is essential in various settings. Until now, particle counters could not handle high-concentration aerosols, but their simplicity, in-situ capability, and real-time features have now been adapted for use in such high-concentration environments. They quickly detect dust generation and provide rapid data on aerosol number concentration, particle size distribution, and fluctuations in various production sites, research fields, fieldwork, and restaurants. This enables visualization of contamination levels and cleanliness levels, providing critical information for control. 【Features】 - Maximum measurable concentration: 2,500/CC (70,750,000/CF), 10-hour battery operation - Real-time meter mode with graph display every second - Extremely resistant to dirt. *For more details, please download the PDF or feel free to contact us.

The "Model 8301AQM-1/8301AQM-2" is a handheld air quality monitor that utilizes the excellent features of Particle Plus's particle counter, such as high concentration compatibility and high temporal resolution, to simultaneously measure and display/output/log particle counts (particle size distribution), PM equivalent values, atmospheric pressure, temperature and humidity, CO2, and TVOC concentrations. It is applicable in various fields, from clean rooms to general work environments, indoor environments (public spaces, living rooms, elderly care facilities, offices, etc.), HVAC, and atmospheric environments. The PM equivalent measurement can not only provide PM2.5 but also show the spectrum along with the particle size distribution and its short-term variations. 【Particle Counter Specifications (Excerpt)】 ■ Measurement particle size/channel count: calibrated from 0.3 to 10.0 mm / 6 channels ■ Factory-set particle sizes: 0.3, 0.5, 1.0, 2.5, 5.0, and 10.0 μm or more / Users can set particle sizes at arbitrary steps of 0.01 μm ■ Suction flow rate (built-in pump): 0.1 CFM (approximately 2.83 L/min) with automatic flow control via built-in flow control *For more details, please download the PDF or feel free to contact us.

The "5300/5500・5300P/5500P" is a 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 particle size classification consists of 6 channels (user-configurable). The measurement values are displayed as the total count of particles above the set particle size or as the count between particle sizes. In real-time meter mode, the particle counter directly graphs the transition of counts every second on the screen. In PM mode, by inputting arbitrary density and refractive index for the count below the expected set particle size, it converts to mass and displays it in μg/m3. 【Common Specifications (Excerpt)】 ■ Light Source: Semiconductor Laser ■ Location & Recipe Settings: 500 locations (20-character index input available)・150 recipes ■ Communication: USB, Ethernet, Modbus RS485, RS232C (optional) ■ Temperature and Humidity Sensor (optional): Option Model EE80014A (0-60℃±0.5℃, 15-90%±2%) *For more details, please download the PDF or feel free to contact us.

The "AQM Series" is an ultra-high concentration particle sensor that utilizes the excellent features of Particle Plus's light scattering method, capable of simultaneously measuring and displaying/outputting particle count, PM equivalent values, TVOC, CO2, temperature, humidity, and atmospheric pressure. Leveraging its concentration capability of 70,800,000 particles/CF, it expands air quality measurement into fields such as clean rooms, indoor environments, atmospheric environments, working environments, and exposure monitoring. The PM display is calculated from the individual particle sizes and number concentration using light scattering, allowing not only for the understanding of mass below the set particle size but also for observing particle distribution and short-term fluctuations. **Features** - Real-time meter: Graphic display every second - Supports ultra-high concentration particles: 70,800,000 particles/CF → 2,500 particles/CC - PM concentration conversion: Short-term fluctuations in PM concentration and particle size distribution display - Environmental sensors: Simultaneous measurement of TVOC (PID), CO2 (NDIR), temperature/humidity, and atmospheric pressure *For more details, please download the PDF or feel free to contact us.*

The EM11000 is an environmental monitor designed for outdoor use, housed in a robust waterproof case, featuring a high-concentration particle counter. It incorporates sensors (9000 series) capable of measuring particle size, concentration, and particle size distribution for up to 30 particle sizes within a compact and durable case, providing reliable measurement data regarding atmospheric particle pollution through light scattering sensors. The number of particles in each size category is set with density and refractive index as coefficients (user-defined) for mass conversion. 【Features】 ■ Measures particle size, number, particle size distribution (up to 30 sizes), temperature and humidity, atmospheric pressure, and CO2 ■ Real-time data ■ High-concentration particle environment compatible *For more details, please download the PDF or feel free to contact us.

The "9000・9000-IoT Series" offers excellent resolution with a high-concentration compatible light scattering particle sensor, capable of measuring up to 30 channels of particle size simultaneously in just 1 second, featuring a sensor structure that is resistant to dirt. It provides aerosol information such as particle size, number concentration, particle size distribution, mass equivalent values, as well as temperature, humidity, and atmospheric pressure data. This system is suitable for multi-point monitoring in high cleanliness areas, equipment integration, indoor and atmospheric environment monitoring, drone and ship mounting, and exposure experiments, reliably capturing particles from high cleanliness to high concentration, and acquiring real-time information on particle counts and variations in particle size distribution. Flow rates can be selected from 1.2 L/min, 2.83 L/min, and 28.3 L/min. 【Specifications (excerpt)】 ■ Maximum measurable concentration: 1,770 particles/CC (9300/9500), 710 particles/CC (9301/9501) ■ Flow rate: 1.2 L/min (9300/9500), 2.83 L/min (9301/9501), 28.3 L/min (9510) ■ Measurement time: 1 second (minimum) to 99 hours, with customizable settings and repeat measurement mode ■ Large particle compatibility: up to 30 μm (9501-30) *For more details, please download the PDF or feel free to contact us.

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.