Laser Airborne Particle Counter Product Knowledge Graph White Paper

1. Introduction

1. Document Version: V1.0

2. White Paper Compilation Unit: Shandong Hengmei Electronic Technology Co., Ltd.

3. Compilation Date: November 21, 2025

4. Core Positioning: This white paper presents the complete product information of Hengmei Intelligent Manufacturing's three laser airborne particle counter models (HM-CL1, HM-CL2, HM-CL3) in a structured. It covers product basics, core technologies, technical parameters, application scenarios, and operation guidelines. It provides accurate data support for product promotion, user selection, technical R&D, and quality control in industries requiring clean environment monitoring.

2. Table of Contents

1. Introduction

2. Table of Contents

3. Product Basic Information

4. Core Technologies and Functional Features

5. Detailed Technical Parameters

6. Application Scenarios and Industry Adaptation

7. Accessories and Consumables Configuration

8. Model Comparison and Selection Suggestions

9. Instrument Installation Steps

10. Instrument Use and Operation Steps

11. Sample Detection Steps

3. Product Basic Information

1. Product Name: Hengmei Intelligent Manufacturing Laser Airborne Particle Counter

2. Model Series and Market Positioning: The product line includes three models—HM-CL1, HM-CL2, and HM-CL3. All are intelligent particle counters designed to measure the size and quantity of suspended particles in unit volume of gas, automatically determine cleanliness levels based on national and international standards. They are positioned as core monitoring equipment for cleanrooms in industries such as pharmaceuticals, electronics, and food, providing reliable data for quality control and compliance verification.

3. Product Appearance and Structure: All models share a compact design with dimensions 185×220×200mm (Depth×Width×Height). The housing is durable, with a 7-inch color touchscreen on the front for operation and result display, and a built-in thermal printer (using 55×30mm thermal paper). The back panel features a charging interface, USB port, and sampling port (with a dust-proof rubber cap for storage). HM-CL1 and HM-CL2 weigh 3.25kg (bare machine), while HM-CL3 weighs 4.05kg (bare machine) due to a larger battery. The sampling rack (tripod + extension rod) is included for flexible placement, supporting height adjustment from 50cm to 150cm.

4. Core Technologies and Functional Features

1. High-Precision Laser Sensing Technology: All models use imported semiconductor laser diodes (service life >30,000 hours) and light-scattering sensors. The sensors effectively eliminate stray light in the cavity, significantly improving signal-to-noise ratio, ensuring accurate measurement of particles as small as 0.3μm.

2. Multi-Standard Cleanliness Judgment Technology: The counters comply with calibration standards JJF1190-2008 and GB/T6167-2007, and support cleanliness level judgment based on ISO14644, FS209E, and new GMP (dynamic/static). They calculate the 95% Upper Confidence Limit (UCL) and convert count results into m³ or ft³ units, automatically determining cleanliness levels for easy compliance verification.

3. Intelligent Data Management Technology: Equipped with Android 7.1 operating system for user-friendly interaction. They support WiFi wireless data transmission and USB flash drive data export (driver-free), with a built-in data memory capacity of 100,000 records. HM-CL2 and HM-CL3 add audit trail functions, meeting FDA 21CFR PART11 requirements, enabling query, traceability, and control of operation records.

4. Comprehensive Environmental Monitoring: Built-in temperature, humidity, and atmospheric pressure sensors, real-time displaying environmental parameters during measurement to ensure data accuracy and traceability.

5. Flexible Power Supply Design: All models support AC/DC dual power supply. Built-in lithium-ion batteries: HM-CL1/HM-CL2 use 74Wh (16.8V/5Ah) batteries (≥6 hours continuous sampling), while HM-CL3 uses 220Wh (16.8V/15Ah) batteries (≥8 hours standby, 5 hours continuous sampling). Chargers are matched (50W for HM-CL1/HM-CL2, 84W for HM-CL3) for fast charging (2-3 hours).

6. Efficient Sampling and Analysis: All models measure 6 particle size channels (0.3, 0.5, 1.0, 3.0, 5.0, 10.0μm) simultaneously in one sampling. HM-CL1/HM-CL2 have a sampling flow of 2.83L/min (0.1cfm), while HM-CL3 has 28.3L/min (1cfm) for faster large-volume sampling. They support flexible sampling settings (1s-99min/30000s sampling period, ≤99s/60s sampling delay, ≤999s/60s interval) and sampling modes (single, custom ≤99 times, continuous).

7. Convenient Result Output: Built-in high-speed thermal printers allow selective printing of particle size channels. They automatically generate professional reports and support data export in multiple formats for further analysis. HM-CL2 and HM-CL3 also support optional LAN, 4G, or HDMI communication for remote data management.

5. Detailed Technical Parameters

1. Common Parameters for All Models

◦ Particle Size Channels: 0.3, 0.5, 1.0, 3.0, 5.0, 10.0μm

◦ Maximum Sampling Concentration: 35,000 particles/liter (particle size ≥0.5μm)

◦ Self-Purification Time: ≤10 minutes

◦ Error Indicators: Particle size distribution error (0.5μm, 5μm) ≤±30%; particle concentration indication error (0.5μm) ≤±30%; repeatability relative error <10%

◦ Operating Environment: 15-35℃, 10-85%RH; Storage Environment: 0-45℃, 0-90%RH

◦ Display: 7-inch color touchscreen; Printer: Thermal printer (55×30mm paper)

◦ Data Memory: 100,000 records; Standard Communication: USB, WiFi

◦ Bare Machine Dimensions: 185×220×200mm; Package Dimensions: 460×265×420mm

1. Model-Specific Parameters

◦ HM-CL1: Sampling Flow 2.83L/min; Battery 74Wh (16.8V/5Ah); Charger 50W (16.8V/3A); Bare Machine Weight 3.25kg; Package Weight 8.6kg; Sampling Period 1s-99min; Sampling Delay ≤99s; Measurement Interval ≤999s; No Audit Trail

◦ HM-CL2: Sampling Flow 2.83L/min; Battery 74Wh (16.8V/5Ah); Charger 50W (16.8V/3A); Bare Machine Weight 3.25kg; Package Weight 8.6kg; Sampling Period 1s-30000s; Sampling Delay ≤60s; Measurement Interval ≤60s; With Audit Trail (FDA 21CFR PART11); Alarm Function (particle count alarm)

◦ HM-CL3: Sampling Flow 28.3L/min; Battery 220Wh (16.8V/15Ah); Charger 84W (16.8V/5A); Bare Machine Weight 4.05kg; Package Weight 9.9kg; Sampling Period 1s-30000s; Sampling Delay ≤60s; Measurement Interval ≤60s; With Audit Trail (FDA 21CFR PART11); Alarm Function (particle count alarm); Working Power 25W

6. Application Scenarios and Industry Adaptation

1. Pharmaceutical Industry: Used in cleanrooms of pharmaceutical factories, drug inspection institutes, and hospitals. It monitors particle concentrations to comply with GMP standards, ensuring the quality of pharmaceuticals (e.g., injections, oral drugs) during production, packaging, and testing.

2. Electronics Industry: Applied in semiconductor factories, precision machinery manufacturing workshops. It detects particles in clean environments to prevent dust from affecting the performance of microchips, circuit boards, and precision components, ensuring product yield and reliability.

3. Food Hygiene Industry: Suitable for fine processing workshops of dairy products, vacuum-packed meat, condiments, and agricultural products. It monitors air cleanliness to avoid microbial and particle contamination, meeting food safety standards (e.g., HACCP).

4. Filter Manufacturing Industry: Used by filter manufacturers to test the quality and efficiency of air filters. It measures particle concentrations before and after filtration to verify the filter's ability to remove particles of different sizes.

5. Optics and Aerospace Industry: Applied in precision processing and testing environments for optical lenses, aerospace components. It ensures ultra-clean conditions to prevent scratches or performance degradation caused by particles, meeting high-precision manufacturing requirements.

7. Accessories and Consumables Configuration

1. Standard Accessories (All Models)

◦ 1 particle counter host; 1 matched charger (50W for HM-CL1/HM-CL2, 84W for HM-CL3)

◦ 1 sampling rack tripod; 1 sampling rack extension rod; 1 sampling head fixture; 1 isokinetic sampling head

◦ 1 sampling extension trachea; 4 sampling port rubber caps; 10 rolls of thermal printing paper

◦ 1 calibration report; 1 user manual; 1 warranty card

1. Optional Accessories

◦ External high-efficiency air filter (consumable, replaceable when expired)

◦ LAN/4G/HDMI communication modules (for HM-CL2/HM-CL3)

◦ Spare lithium-ion battery (matched to model)

1. Consumables

◦ Thermal printing paper (55×30mm); Lens cleaning paper; Lens cleaning solution

8. Model Comparison and Selection Suggestions

1. Model Comparison

◦ Sampling Flow: HM-CL1/HM-CL2 (2.83L/min) for small-volume, precise sampling; HM-CL3 (28.3L/min) for large-volume, fast sampling.

◦ Functionality: HM-CL1 (basic functions, no audit trail); HM-CL2 (adds audit trail and alarm); HM-CL3 (adds higher flow rate and larger battery).

◦ Weight/Battery: HM-CL3 is heavier but has longer battery life; HM-CL1/HM-CL2 are more portable.

1. Selection Suggestions

◦ HM-CL1: Suitable for small cleanrooms (e.g., laboratory fume hoods) with basic sampling needs, no audit trail requirement (e.g., small food processing workshops, small filter testing).

◦ HM-CL2: Suitable for industries requiring compliance and traceability (e.g., pharmaceutical factories, hospitals) that need audit trail and alarm functions but not high flow rates.

◦ HM-CL3: Suitable for large cleanrooms (e.g., semiconductor workshops, aerospace component factories) requiring fast, large-volume sampling and long continuous operation (e.g., 24-hour monitoring).

9. Instrument Installation Steps

1. Unpacking and Inspection: Open the package, check if host, charger, sampling rack, and accessories are complete and intact according to the packing list.

2. Charger Connection: Insert the DC plug of the charger into the host's charging interface (back panel), connect the AC plug to 110V/220V power. The charger indicator is red when charging, green when fully charged or disconnected.

3. Sampling Rack Installation: Assemble the tripod, extension rod, and sampling head via 1/4 universal threads (6mm). Adjust the extension rod (5-section adjustable) to set height (50-150cm). Screw the isokinetic sampling head (with adjustable damping pan-tilt) onto the rack top.

4. Air Filter Installation (Optional): Connect the external high-efficiency filter to the sampling port if needed to prevent large particles from entering the host.

5. Power-On Test: Press the power switch. The system starts, automatically runs the particle counting APP, and enters the main measurement interface after self-test. Check if the display, sensors, and printer work normally.

10. Instrument Use and Operation Steps

1. System Settings: On the main interface, click "SETTING" to configure:

◦ Sampling Parameters: Sampling period (1s-99min/30000s), delay (≤99s/60s), interval (≤999s/60s).

◦ Unit/Language: Select m³/ft³, English.

◦ Alarm Settings (HM-CL2/HM-CL3): Set particle count thresholds for cleanliness alarms.

◦ Time: Adjust local time for data timestamp.

1. Sampling Preparation: Place the sampling rack in the measuring point, align the sampling head with the air flow. For static measurement, ensure ≤2 people in the cleanroom.

2. Measurement Start:

◦ Ordinary Measurement: Click "COLLECT SETTINGS", select "none" for calculation standard, set measurement times, click "START" to measure (no UCL report).

◦ Standard Measurement: Click "COLLECT SETTINGS", select ISO/GB/209E, set static/dynamic state, measurement location, number of points (≥2), and times (≥5). Click "START" to measure, system calculates UCL automatically.

1. Data Query and Output: Click "HISTORY" to view data lists. Select records to delete, export (insert USB first), or print. Click a record to view detailed reports (particle counts, environmental parameters, UCL).

2. Self-Cleaning: Before use, connect the sampling port to the self-cleaning device, click "START CLEAN" (main interface). The host runs the air pump for 10 minutes until 6-channel counts are stable or 0 for 1 minute.

3. Shutdown: After measurement, close the APP, press the power switch. Disconnect the charger, cover the sampling port with the rubber cap, and store accessories.

11. Sample Detection Steps

1. Sample Environment Preparation: Ensure the cleanroom is in stable state (static/dynamic as required). Calibrate the instrument if not done within 1 year (per JJF1190-2008).

2. Sampling Point Layout: According to standards, arrange sampling points (≥2 points for cleanrooms). Place the sampling rack at each point, adjust height (1.2m for general, or as required).

3. Instrument Preheating and Self-Cleaning: Power on, preheat for 10 minutes. Perform self-cleaning to ensure internal air path is clean.

4. Parameter Setting: Enter "SETTING", set sampling period (e.g., 60s), delay (e.g., 10s), measurement times (e.g., 3 times per point), and calculation standard (e.g., GMP static).

5. Measurement Execution: Click "START" to begin sampling. The interface displays real-time particle counts and environmental parameters. After each point's measurement, move the rack to the next point and repeat.

6. Data Verification: After all measurements, check if UCL results meet cleanliness requirements. If errors exceed limits, recheck sampling points, instrument calibration, and repeat measurement.

7. Result Output: Export data to USB or print reports (include sample location, time, standards, and results) for archiving or compliance submission.

8. Post-Detection Cleaning: Turn off the instrument, clean the sampling head and rack with a dry cloth. Store the instrument in the package with the dust-proof cap, charge the battery every 6 months during storage.

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