OC‑9500 Beta‑Ray Online Dust Monitoring System adopts beta‑ray absorption principle with C‑14 radiation source. It continuously and automatically measures TSP, PM10, PM2.5 particulate matter concentration. Equipped with dynamic heating system and temperature‑humidity compensation, it delivers accurate 24/7 readings free from seasonal and humidity interference. It supports 4G & Ethernet communication, complies with HJ‑212 protocol, and features data storage, breakpoint resume transmission and remote operation. With IP53 protection grade, it works reliably for construction sites, stockyards, mines, ports and other harsh outdoor scenarios.
OC-9500 Dust Monitoring Equipment With Beta Ray technology
Company Profile
We Henan Oceanus is located in Henan, a land with a long history and profound cultural heritage, has been dedicated to the research, development, production, and sales of Gas detection system and Environment equipment since its establishment. With exquisite technology and outstanding quality, we have won widespread recognition in the global marketing.

01
Business areas
As a leader in the field of Gas detector and Air quality monitor system, we Henan Oceanus will be continued to expand its business scope and provide customers around the world with customizable Air quality monitor system of various types and specifications.
02
Values and ideas
Our company upholds the core values of integrity and quality service, focusing more on friendship with our customers. We always adhere to integrity management, customer-centered, and provide a full range of pre-sales, sales, and after-sales services to ensure that customers can be worry-free when using our products.
03
Global Service Network
We have a comprehensive global service network, offering timely, professional pre-sales consultation, after-sales service, and technical support for overseas users. Regardless of where users are located, they can enjoy our attentive and thoughtful service.
04
Custom Service
With excellent products and services, Henan Oceanus Gas detector and Air quality monitor system have been exported to more than 100 countries around the world and have won widespread praise.
Description:
The OC-9500 β-Ray Online Dust Monitoring System adopts the working principle of the β-Ray absorption method. It can automatically measure and record the concentration of particulate matter in ambient air. Using C-14 as the radiation source, which emits constant high-energy electrons, the sample air passes through the sampling tube at a constant flow rate via a cutter, and particulate matter is trapped on the filter membrane. When beta rays penetrate the filter membrane, their energy attenuates. The mass of particulate matter is calculated by measuring the attenuation. Based on the sampling flow rate, sampling duration, filter membrane area and environmental parameters, the working condition concentration and standard condition concentration of particulate matter in ambient are derived.
Applications:
Mining site, Quarries area, Smart city project, Urban ambient quality inspection, Port environmental monitoring, Dust detection in Ceramic factory, Tourist attractions, Surface Mining Garbage landfills, etc.
Features:
Adopts the beta ray absorption method for direct measurement of dust mass concentration, which is not affected by seasonal changes, requires no correction, and provides accurate real-time data 24/7.
High measurement accuracy, supporting optional cutters for different particle sizes (TSP, PM10, PM2.5) to achieve real-time measurement of particulate matter concentrations with various particle sizes.
Adopts the co-location design for sampling and detection, fundamentally eliminating measurement errors caused by moving filter tapes.
Equipped with a Dynamic Heating System (DHS) to eliminate the impact of humidity on measurement results and ensure accurate measurement of semi-volatile nitrates and organic compounds.
Advanced temperature and humidity compensation algorithm corrects the influence of temperature and humidity on measurements, ensuring the accuracy of results.
Uses a dual-channel diaphragm air pump, featuring stable flow rate and long service life.
Massive storage of measurement data, with data query and USB data export functions.
The device has automatic data memory and auto-restart functions after power recovery.
Intelligent control system with fault alarm and self-diagnosis functions, supporting automatic time calibration, remote reading of instrument status information, remote fault diagnosis, remote parameter configuration and remote program upgrade.
Adopts 4G full-network wireless communication, supporting multiple communication methods such as Ethernet and GPRS. Complies with the national standard HJ - 212 communication protocol and supports synchronous data upload to multiple platforms.
Equipped with breakpoint resume function to ensure the effective data transmission rate reaches over 99%.
Supports linkage with pollution control facilities (optional). When the monitoring data reaches the threshold value, the control facilities will start automatically.
Industrial-grade design suitable for harsh outdoor environments, with stable and reliable operation. It can work independently or as a subsystem of the air monitoring network.
Technical parameters:
| Items | Details |
| Monitoring Parameters | Dust concentration (one of TSP, PM10, PM2.5), noise, temperature, humidity, air pressure, wind speed (optional), wind direction (optional) |
| Measurement Range | (0~10000) μg/m³ |
| Indication Error | ±8% |
| Indication Repeatability | ≤0.9% |
| Zero Drift | ±0.2% FS |
| Sampling Flow Rate | 16.67 L/min |
| Sampling Flow Stability | Flow rate change at each test time point within 24h is ±2.2%/24h of the set flow rate; average flow rate change within 24h is ±1.1%/24h of the set flow rate |
| Clock Error | ±0.31s |
| Display Resolution | 0.1 μg/m³ |
| Standard Membrane Reproducibility | ≤±2% |
| Filter Tape | Glass fiber filter tape |
| Radiation Source | C-14 |
| Concentration Alarm | Flexible setting within the full measurement range |
| Temperature | Measurement range -40℃ - 70℃, resolution 0.1℃, accuracy ±0.5℃ |
| Humidity | Measurement range 0 - 100%RH, resolution 0.1%RH, accuracy ±3%RH |
| Air Pressure | Measurement range 10 - 110 kPa, resolution 0.1 kPa, accuracy ±0.5 kPa |
| Wind Speed (optional) | Measurement range 0 - 45 m/s, starting wind speed ≥0.5 m/s, resolution 0.1 m/s, accuracy ±0.3 m/s |
| Wind Direction (optional) | Measurement range 0 - 359°, resolution 1°, accuracy ±1° |
| Noise (optional) | Measurement range 30 dB - 130 dB, resolution 0.1 dB, accuracy ±0.5 dB |
| Power Supply | AC 220V ±5%, 55Hz / DC 24V (optional) |
| Average Power Consumption | 60W |
| Operating Environment | -30℃ - 55℃, ≤100%RH (non-condensing) |
| Protection Class | IP53 |
Our After-sales service:
1. OEM service for LOGO, model, Technical Parameters, Operation manual, etc.
2. Free calibration service and provide calibration methods.
3. One year warranty and lifetime warranty
How To Cooperate With Us?
We look forward to collaborating with more overseas gas detector and air quality monitor distributors and partners to advance the development and application of gas detection and air quality monitoring technologies .
Our Address
No. 923, Floor 9, Unit 2, NO.78, Shangding Road, Zhengzhou, China.
Phone Number
+86 15981942832
Contact:Oceanus Team
Mobile/WhatsApp:+86 15981942832
Mobile/WhatsApp:+86 13673683950
E-mail:info@china-oceanus.com
Add:No.923, Floor 9, Unit 2, NO.78, Shangding Road, Zhengzhou, China