YINHEKEJI CCZ-30 Intrinsically Safe Portable Dust Sampler

Overview

The YINHEKEJI CCZ-30 Intrinsically Safe Portable Dust Sampler is a high-performance, field-deployable instrument engineered for quantitative airborne particulate sampling in hazardous and non-hazardous industrial environments. It operates on the principle of isokinetic or gravimetric sampling—drawing air through standardized collection media (e.g., PVC, mixed-cellulose ester, or gelatin filters) at precisely regulated volumetric flow rates. Its intrinsically safe design—certified to Ex ib IIA T3 Gb per IEC 60079-0 and IEC 60079-11—enables safe operation in Zone 1/2 gas atmospheres where flammable vapors (e.g., hydrocarbons, solvents, or organic dust clouds) may be present. The modular, split-body architecture separates the sampling pump unit from the aerosol collector, allowing flexible configuration for total dust, respirable dust (via cyclone pre-separator), organic pesticide aerosols, and six-stage viable microbial sampling—all without hardware modification. Designed for occupational hygiene professionals conducting workplace exposure assessments, the CCZ-30 meets the technical equipment requirements stipulated in the 2020 Guidelines for Occupational Health Technical Service Institutions issued by China’s National Health Commission.

Key Features

• Intrinsically safe certification (Ex ib IIA T3 Gb) validated for use in potentially explosive atmospheres containing Group IIA gases (e.g., propane, acetone) with surface temperature limitation ≤200 °C.
• Closed-loop digital flow control system maintains setpoint accuracy independent of battery voltage drift, filter loading, or pipeline backpressure—ensuring compliance with ISO 7708 (respirable convention) and EN 481 (particle size-selective sampling).
• 4.3-inch capacitive touchscreen interface displays real-time flow rate (L/min), elapsed time, in-situ and standard-condition sampled volume (L), ambient temperature (°C), barometric pressure (kPa), and remaining battery capacity (%).
• On-device calibration capability via open-access firmware interface—users may perform span and zero adjustments using NIST-traceable flow calibrators (e.g., primary piston provers or electronic bubble meters).
• Robust mechanical design: aluminum-magnesium alloy housing, IP54-rated ingress protection, shock-absorbing rubberized grip, and thermal management optimized for continuous operation across −10 to 50 °C ambient conditions.
• Low-noise operation (<70 dB[A] at 1 m) suitable for prolonged use in confined or acoustically sensitive workspaces without interfering with verbal communication or hearing protection protocols.

Sample Compatibility & Compliance

The CCZ-30 supports regulatory-compliant sampling across multiple aerosol fractions and matrix types. For total dust assessment, it interfaces with 40-mm diameter filter cassettes (e.g., PVC or polycarbonate membranes) per GBZ/T 192.1–2018 and OSHA ID-130. For respirable dust, it couples with 20 L/min Dorr-Oliver or GK2.69 cyclones mounted upstream of 40-mm cassettes—aligned with ISO 7708 and ACGIH TLV® conventions. When equipped with a 28.3 L/min Anderson six-stage impactor (optional), it enables size-resolved viable microbial enumeration per ISO 14698-1 and USP . All sampling configurations maintain traceability to national metrological standards; device-generated logs include timestamped flow verification points, enabling audit-ready documentation for GLP-aligned occupational hygiene reports.

Software & Data Management

The CCZ-30 stores up to 100 complete sampling sessions locally—including start/stop timestamps, average and instantaneous flow profiles, temperature/pressure compensation factors, and calculated standard-volume totals (at 25 °C, 101.3 kPa). Data export is supported via USB-C connection to Windows-based desktop software (included), which generates CSV- and PDF-formatted reports compliant with GBZ 159–2004 and ISO/IEC 17025 documentation requirements. Audit trail functionality records all user-initiated parameter changes, calibration events, and firmware updates—with immutable timestamps and operator ID tagging. While not FDA 21 CFR Part 11-certified out-of-the-box, the data structure and metadata schema are compatible with third-party LIMS integration for regulated laboratory workflows.

Applications

• Workplace exposure monitoring for coal dust, silica, wood flour, metal fumes, and pharmaceutical powders under GBZ 2.1–2019 permissible exposure limits (PELs).
• Respirable crystalline silica (RCS) assessment in construction, mining, and stone-cutting operations using cyclone-equipped configurations.
• Organic pesticide aerosol sampling in agricultural formulation facilities and greenhouse application zones.
• Viable airborne microorganism surveillance in cleanrooms, hospitals, and food processing plants—when paired with optional impactor and nutrient agar plates.
• Baseline ambient particulate characterization during environmental site assessments and remediation validation studies.

FAQ

What explosion protection standard does the CCZ-30 meet?
The CCZ-30 is certified to Ex ib IIA T3 Gb per IEC 60079-0 and IEC 60079-11, indicating intrinsic safety for use in Zone 1 gas hazardous areas with Group IIA gases and maximum surface temperature of 200 °C.
Can the CCZ-30 perform both total and respirable dust sampling with one setup?
No—total and respirable sampling require different collection assemblies: total dust uses a 40-mm filter cassette directly mounted, while respirable sampling requires a 20 L/min cyclone pre-separator upstream of the same cassette type.
Is firmware calibration accessible to end users?
Yes—the device features an open backend calibration menu accessible via password-protected service mode, enabling field recalibration using certified reference flowmeters.
Does the CCZ-30 support automatic temperature and pressure correction?
Yes—it integrates onboard temperature and barometric pressure sensors to compute standard-condition volume (at 25 °C, 101.3 kPa) in real time per ISO 5800 and GBZ/T 189.10–2007.
What is the minimum detectable flow rate and its uncertainty?
The lowest programmable flow is 3 L/min, with full-scale error ≤±5% FS and stability ≤3% FS over an 8-hour sampling period at constant load.