AMAE CCZ5(A) Intrinsically Safe Personal Dust Sampler
| Brand | AMAE |
|---|---|
| Model | CCZ5(A) |
| Application | Personal sampling of respirable and total dust in underground mines and occupational environments |
| Flow Range | 1000–6000 mL/min |
| Flow Resolution | 1 mL/min |
| Certifications | IECEx/ATEX Zone 0 (Class I, Div 1) & Zone 2 (Class II, Div 2) compliant |
| Compliance | GBZ 159-2004, GBZ/T 160 series, GBZ/T 300 series, GBZ 2.1-2019 |
| Power | Rechargeable Li-ion battery with >16 h continuous operation at 2 L/min |
| Environmental Rating | IP65 |
| Data Storage | Internal non-volatile memory (≥10,000 sample records) |
| Interface | USB-C for data export |
| Operating Temperature | −10 °C to +50 °C |
| Relative Humidity | ≤95 % RH (non-condensing) |
Overview
The AMAE CCZ5(A) Intrinsically Safe Personal Dust Sampler is an engineered solution for regulatory-compliant, gravimetric collection of airborne particulate matter—including respirable dust, total dust, and metal-bearing aerosols—in hazardous and confined environments. Designed specifically for underground mining operations, the instrument operates on the principle of constant-flow aspiration through standardized filter media (Φ37 mm), enabling precise volumetric air sampling under dynamically varying pressure, temperature, and resistance conditions. Its intrinsic safety certification (IECEx/ATEX Zone 0 and Zone 2) ensures safe deployment in explosive atmospheres where methane, coal dust, or volatile organic vapors may be present. The device meets the metrological and procedural requirements defined in China’s national occupational health standards—GBZ 159-2004 (sampling methodology), GBZ/T 160 and GBZ/T 300 (analytical validation frameworks), and GBZ 2.1-2019 (exposure limit derivation)—making it suitable for use in GLP-aligned laboratories, third-party testing facilities, and government-regulated occupational hygiene programs.
Key Features
- Precision constant-flow control: Maintains setpoint accuracy within ±2 % of full scale across variable backpressure (up to 25 kPa) and supply voltage fluctuations (6.0–8.4 V DC), eliminating flow drift during extended shifts.
- Extended operational autonomy: Integrated high-density lithium-ion battery supports ≥16 hours of continuous sampling at 2 L/min, with low-power sleep mode extending standby time to 72 hours.
- Ergonomic intrinsically safe wearable design: Lightweight (≤480 g) chassis with anti-static shoulder harness enables secure, fatigue-reduced mounting for full-shift personal monitoring without compromising mobility or safety compliance.
- Multi-mode sampling logic: Supports manual start/stop, programmable timer-based sampling (1 min–24 h intervals), volume-triggered termination (e.g., 100–5000 L), and cyclic multi-stage protocols for time-weighted average (TWA) and short-term exposure limit (STEL) assessments.
- Real-time environmental compensation: Onboard barometric pressure sensor (±0.1 kPa) and thermistor (±0.3 °C) enable automatic standard-condition volume correction (at 25 °C, 101.325 kPa) per GBZ 159-2004 Annex B.
- Comprehensive fault management: Audible and visual alerts for low battery, filter clogging (>20 kPa ΔP), flow deviation (>±5 %), and memory overflow—with automatic logging of anomaly timestamps and associated sensor readings.
- Secure data governance: Non-volatile flash memory retains ≥10,000 sampling events with metadata (date/time, flow setpoint, actual flow, temperature, pressure, battery voltage); exportable via USB-C to CSV or XML for audit-ready reporting.
Sample Compatibility & Compliance
The CCZ5(A) is validated for use with certified Φ37 mm filter substrates—including mixed cellulose ester (MCE), polyvinyl chloride (PVC), and quartz fiber filters—as specified in GBZ/T 160.29 (dust gravimetry) and ISO 7708:1995 (respirable fraction definition). Optional cyclone pre-separators (Dorr-Oliver type, 50 % cut-point at 4 µm) are included to isolate respirable fractions per NIOSH Method 0600. All configurations comply with the mechanical and electrical safety provisions of GB 3836.1–2010 (Explosive Atmospheres) and IEC 60079-0:2018. Device firmware implements traceable calibration routines aligned with JJG 956-2017 (Calibration Specification for Air Samplers), supporting annual verification by accredited metrology labs.
Software & Data Management
The CCZ5(A) interfaces with AMAE DustLink™ Desktop Suite (v3.2+), a Windows-based application supporting configuration upload/download, real-time telemetry monitoring, batch report generation (PDF/Excel), and digital signature-enabled certificate of conformance. Audit trail functionality complies with GB/T 27025-2019 (ISO/IEC 17025) requirements for data integrity, including immutable timestamping, user authentication logs, and edit history tracking. Optional cloud synchronization (AMAE Cloud Vault) provides encrypted remote access for multi-site program managers, with role-based permissions and 21 CFR Part 11–compatible electronic signatures for regulated environments.
Applications
- Underground coal and metal mine worker exposure assessment per AQ 1020-2006 (Coal Mine Dust Control Standard).
- Ongoing TWA monitoring in foundries, cement plants, and abrasive blasting operations subject to GBZ 2.1-2019 permissible exposure limits (PELs).
- Indoor air quality surveys in public buildings and healthcare facilities where PM10/PM2.5 source apportionment is required.
- Method validation studies in university and research institute laboratories investigating aerosol generation mechanisms and filtration efficiency.
- Regulatory inspections conducted by provincial CDCs, MEE-affiliated monitoring stations, and occupational safety enforcement agencies.
FAQ
Does the CCZ5(A) support real-time flow display during sampling?
Yes—the OLED screen shows instantaneous flow rate (mL/min), elapsed time, accumulated volume (L), battery status, and ambient temperature/pressure continuously.
Can the device be calibrated in-house using standard syringes or dry calibrators?
Yes—built-in calibration mode accepts manual entry of reference flow values from NIST-traceable primary standards (e.g., Gilian Gilibrator-2, Mesa Labs DryCal); calibration coefficients are stored with unique ID and date stamp.
Is firmware upgrade supported remotely?
Firmware updates require local USB-C connection and authenticated credentials via DustLink™ Desktop Suite; no over-the-air (OTA) capability is implemented for security and regulatory stability.
What filter media types are validated for use with the CCZ5(A)?
Certified validation exists for MCE (pore size 0.8 µm), PVC (5 µm), and quartz fiber (QMA/QMB) filters meeting GB/T 17039-1997 specifications; alternative substrates require user-performed breakthrough testing.
How is data integrity ensured during power loss or unexpected shutdown?
All active sampling sessions write buffer data to non-volatile memory every 10 seconds; incomplete records retain timestamp, duration, and volume up to last confirmed write point.
