Cubic OPC-6303M Online Optical Particle Counter
| Brand | Cubic |
|---|---|
| Origin | Hubei, China |
| Model | OPC-6303M |
| Instrument Type | Online |
| Detection Principle | Optical Scattering |
| Particle Size Range | 0.3–10 μm |
| Counting Efficiency | 50% at 0.3 μm, 100% ≥0.5 μm (per TSI 9306 reference, 25±2°C, 50±10% RH) |
| Warm-up Time | ≤8 s |
| Data Update Interval | 1 s |
| Operating Temperature | 0–45°C |
| Operating Humidity | 0–95% RH (non-condensing) |
| Storage Temp/Humidity | −20–60°C / 0–95% RH (non-condensing) |
| Power Supply | DC 12 V |
| Avg. Current Draw | ≤1 A |
| Flow Rates | 2.83 L/min (Class 10,000 cleanroom), 28.3 L/min (Class 1,000 cleanroom) |
| Output Channels | 0.3, 0.5, 1.0, 2.5, 5.0, 10.0 μm (pcs/L) |
| Compliance | JJF 1190 |
| Standard Interface | RS485 |
| Optional Interfaces | RJ45 Ethernet, 4–20 mA analog output |
Overview
The Cubic OPC-6303M Online Optical Particle Counter is an industrial-grade, real-time airborne particulate monitoring instrument engineered for continuous environmental and cleanroom surveillance. It operates on the principle of single-particle light scattering—where aerosol particles passing through a focused laser beam generate scattered light pulses proportional to their size and refractive index. These pulses are detected by a high-sensitivity photodiode array and classified into six discrete size channels (0.3, 0.5, 1.0, 2.5, 5.0, and 10.0 μm), delivering volumetric concentration data in particles per liter (pcs/L). Designed for integration into building management systems (BMS), HVAC control networks, and pharmaceutical manufacturing environments, the OPC-6303M supports ISO 14644-1 cleanroom classification, USP environmental monitoring, and GMP-compliant facility qualification protocols.
Key Features
- Optimized optical architecture: Industrial-class 650 nm laser diode with thermal stabilization ensures long-term signal consistency and minimizes drift under varying ambient conditions.
- Dual-flow configuration: Selectable sampling rates of 2.83 L/min (for Class 10,000/ISO 8 environments) or 28.3 L/min (for Class 1,000/ISO 6 and stricter applications), enabling compliance with both pharmaceutical and microelectronics cleanroom standards.
- Cubic’s proprietary dust-source intelligent recognition algorithm: Dynamically compensates for background interference from non-spherical or hygroscopic particles, improving measurement fidelity across diverse atmospheric conditions—including high-humidity coastal zones and industrial urban settings.
- Constant-flow sampling design: Integrated mass flow controller and pressure-compensated pump maintain ±2% flow stability over the full operating temperature and pressure range, eliminating volumetric error due to barometric or thermal fluctuations.
- Ruggedized environmental operation: Certified for continuous duty between 0–45°C and 0–95% RH (non-condensing), with extended storage capability down to −20°C—suitable for unconditioned utility corridors and outdoor-mounted enclosures.
- Fast system readiness: Achieves photometric and thermal equilibrium within ≤8 seconds after power-on, enabling rapid deployment during qualification retests or emergency monitoring scenarios.
Sample Compatibility & Compliance
The OPC-6303M is validated for use with ambient air, compressed air (when equipped with appropriate inline filtration and pressure regulation), and recirculated HVAC airstreams. Its counting efficiency profile—50% at 0.3 μm and ≥98% at 0.5 μm—is traceably aligned with NIST-traceable calibration using PSL (polystyrene latex) spheres and verified against TSI 9306 reference instrumentation under controlled ISO 21501-4 test conditions. The device meets the metrological requirements of JJF 1190–2008 (Calibration Specification for Light Scattering Airborne Particle Counters) and supports audit-ready documentation for FDA 21 CFR Part 11-compliant data integrity workflows when paired with Cubic’s optional secure logging software. It is routinely deployed in ISO 14644-1 classified cleanrooms, semiconductor fab monitoring nodes, and sterile compounding facilities requiring continuous particle surveillance per EU Annex 1 (2022) and PIC/S guidance.
Software & Data Management
Data output is delivered via standard RS485 Modbus RTU protocol (addressable, multi-drop capable), with optional RJ45 Ethernet (Modbus TCP) and isolated 4–20 mA analog outputs for legacy PLC integration. Cubic’s OPC-Link™ configuration and visualization suite (Windows/Linux compatible) enables remote firmware updates, alarm threshold programming (per channel or cumulative), and time-synchronized data export in CSV or SQLite format. All logged measurements include embedded timestamps, instrument serial ID, flow rate verification flags, and self-diagnostic status codes—supporting GLP/GMP audit trails and electronic record retention per ALCOA+ principles. Raw pulse data is accessible for advanced post-processing and third-party algorithm validation.
Applications
- Real-time ISO 14644-1 cleanroom classification and monitoring in pharmaceutical aseptic processing suites
- Continuous particulate trending in semiconductor fabrication tool exhaust ducts and minienvironments
- Compressed gas quality assurance in biopharmaceutical production (per ISO 8573-1 Class 2/3)
- Environmental baseline characterization and fugitive emission detection in industrial facilities
- Validation support for HVAC filter integrity testing (e.g., DOP/PAO challenge response tracking)
- Research-grade aerosol dynamics studies in atmospheric science laboratories
FAQ
What calibration standards does the OPC-6303M comply with?
It is calibrated and verified per JJF 1190–2008 and aligns with ISO 21501-4 for light-scattering particle counters, using NIST-traceable PSL standards.
Can the OPC-6303M be integrated into a SCADA or BMS platform?
Yes—via RS485 Modbus RTU (standard), Modbus TCP over Ethernet (optional), or 4–20 mA analog signals (optional), supporting seamless interoperability with major industrial automation systems.
Is the device suitable for outdoor installation?
It may be installed outdoors only when housed in an IP65-rated, temperature-buffered enclosure with condensation prevention measures; its specified operating range assumes indoor or sheltered environments.
Does it support remote diagnostics and firmware updates?
Yes—through OPC-Link™ software with secure HTTPS-based update channels and real-time sensor health reporting (laser output, flow sensor status, photodetector gain stability).
How is counting accuracy maintained across varying humidity levels?
The intelligent recognition algorithm applies dynamic refractive index compensation and discriminates hygroscopic growth artifacts using multi-threshold pulse shape analysis, reducing false counts in high-RH conditions without requiring desiccant pretreatment.
