Junray ZR-2024 Cyclonic Air Microbial Sampler

Overview

The Junray ZR-2024 Cyclonic Air Microbial Sampler is a high-flow, impaction-driven bioaerosol collection instrument engineered for quantitative and viability-preserving sampling of airborne microorganisms—including bacteria, fungi, viruses, and spores—in environmental, occupational, clinical, and cleanroom settings. It operates on the principle of cyclonic inertial impaction: aerosol-laden air is drawn at controlled high velocity into a spiral flow path, where centrifugal forces drive particles toward a liquid collection medium (e.g., sterile buffer or nutrient broth) contained in the rotating collector chamber. This design minimizes shear stress and thermal degradation, thereby maintaining microbial viability—critical for downstream culture-based enumeration, PCR amplification, immunoassay, or cell-based functional assays. Validated using computational fluid dynamics (CFD) modeling and empirical biological recovery testing per ISO 14698-1 and GB/T 39990–2021, the ZR-2024 delivers reproducible collection efficiency across the 0.5–10 µm aerodynamic diameter range—the dominant size fraction for respirable bioaerosols.

Key Features

• Cyclonic impaction architecture optimized via CFD simulation for >90% collection efficiency at 100 L/min for particles ≥1 µm, with minimal particle fragmentation or desiccation;
• High-precision electronic mass flow controller (±2.5% full-scale accuracy), thermally compensated and auto-calibrated against ambient temperature, humidity, and barometric pressure;
• Integrated environmental sensors: real-time monitoring and logging of temperature (0–50 °C), relative humidity (0–95% RH), and atmospheric pressure (70–106 kPa);
• 5-inch capacitive color touchscreen interface with intuitive icon-driven navigation, multilingual support (English, Chinese), and context-sensitive help prompts;
• Non-volatile memory storing ≥10,000 sampling records—including timestamp, flow profile, environmental parameters, and operator ID—with automatic power-fail recovery and resume-on-power restoration;
• Modular, autoclavable sampling head with quick-release mechanism; compatible with 15 mL or 50 mL conical collection tubes; supports chemical disinfection (e.g., 70% ethanol, 0.5% sodium hypochlorite) and UV-C sterilization;
• Programmable sampling modes: continuous, timed interval, volume-triggered, and external trigger input (TTL-compatible);
• Wireless operation via optional handheld remote controller (Bluetooth 5.0, 10 m range) or mobile app (iOS/Android), enabling hands-free start/stop and real-time status monitoring.

Sample Compatibility & Compliance

The ZR-2024 is validated for use with aqueous collection media including PBS, tryptic soy broth (TSB), and viral transport media (VTM). Its low-shear liquid impingement preserves structural integrity and culturability of Gram-positive/negative bacteria, filamentous fungi, and enveloped/non-enveloped viruses—enabling compatibility with ISO 14698-2 (biocontamination control), USP (microbiological control of pharmaceutical environments), and CLSI M58-A (air sampling in healthcare facilities). It conforms to national standards GB/T 39990–2021 (Technical Requirements for Particulate Bioaerosol Samplers), JJF 1826–2020 (Calibration Specification for Air Microbial Samplers), and GB/T 38517–2020 (General Principles for Bioaerosol Sampling and Analysis). Data logging meets GLP/GMP traceability requirements with configurable audit trails, user authentication, and electronic signature support (21 CFR Part 11-ready when paired with compliant LIMS).

Software & Data Management

Data export is supported via USB 2.0 (FAT32-formatted flash drive) in CSV and PDF report formats, including raw sensor logs, flow calibration history, and QC check summaries. Optional Bluetooth thermal printer integration enables on-site hardcopy generation of sampling certificates. The companion desktop software (Windows 10/11) provides batch analysis tools, statistical trend visualization (e.g., CFU/m³ vs. time), and automated compliance reporting aligned with GB/T 18883–2022 (Indoor Air Quality Standard) and ISO 14644-1 (cleanroom classification). All firmware updates are digitally signed and delivered via secure HTTPS endpoint.

Applications

• Indoor air quality (IAQ) assessment in hospitals, schools, offices, and residential buildings per GB/T 18883–2022;
• Environmental monitoring of ISO Class 5–8 cleanrooms and aseptic processing areas in pharmaceutical and biotech manufacturing;
• Occupational health surveillance in wastewater treatment plants, agricultural facilities, and composting operations;
• Epidemiological field studies of airborne pathogen dispersion (e.g., influenza, SARS-CoV-2, Aspergillus spp.);
• Validation of HVAC filtration efficiency and ductwork contamination levels per GB/T 18204.5–2013;
• Research-grade bioaerosol characterization in aerobiology, immunotoxicology, and microbial ecology laboratories.

FAQ

What collection media are recommended for optimal microbial recovery?
Sterile phosphate-buffered saline (PBS), tryptic soy broth (TSB), or viral transport media (VTM) are validated for bacterial, fungal, and viral recovery. Viscosity and surface tension should remain within ISO 8573-1 Class 2 specifications to ensure consistent impaction dynamics.
Does the ZR-2024 support regulatory-compliant data audit trails?
Yes—when used with the optional desktop software and configured user roles, it generates time-stamped, immutable logs with operator identification, change history, and electronic signature fields compliant with 21 CFR Part 11 and GLP Annex 11 requirements.
Can the device operate unattended for extended periods?
Yes—programmable sampling up to 99 hours 59 minutes, combined with non-volatile memory and automatic resume-after-power-loss functionality, enables fully autonomous long-term monitoring deployments.
Is the sampling head compatible with standard laboratory centrifugation tubes?
Yes—the removable collector module accepts commercially available 15 mL and 50 mL conical polypropylene centrifuge tubes with O-ring seals, facilitating direct transfer to downstream processing without sample transfer loss.
How frequently does the flow sensor require recalibration?
Annual calibration is recommended per JJF 1826–2020; however, built-in self-diagnostic routines and reference flow verification protocols allow in-house verification between formal calibrations.