Kanomax Model 6822/6824 Vane Anemometer for Cleanroom and HVAC Airflow Verification

Overview

The Kanomax Model 6822 and 6824 Vane Anemometers are precision-engineered handheld instruments designed specifically for airflow verification in controlled environments—including ISO Class 5–8 cleanrooms, pharmaceutical manufacturing suites, hospital isolation rooms, and HVAC system commissioning. Based on proven vane anemometry principles, these devices measure air velocity via a low-inertia, thermally stabilized 70-mm-diameter rotating vane probe that responds linearly across the full 0.2–20.0 m/s range. Unlike hot-wire or thermal anemometers, vane-based measurement offers superior robustness against particulate loading, transient turbulence, and moderate temperature gradients—critical attributes when validating laminar flow hoods, supply diffusers, or return grilles under real-world operational conditions. The 6824 variant extends functionality with integrated temperature and relative humidity sensing, enabling simultaneous environmental parameter logging required for GMP-compliant cleanroom monitoring per EU Annex 1 and FDA Guidance for Industry.

Key Features

• Vane-based velocity transduction with 0.01 m/s resolution and traceable calibration to NIST-traceable standards
• High-stability aluminum-vane rotor optimized for low starting threshold (0.2 m/s) and minimal angular inertia
• Dual-mode operation: real-time velocity display and automatic volumetric airflow calculation (CFM or m³/h) upon user-defined duct geometry input (rectangular, circular, or irregular cross-section)
• 6824 model includes calibrated Pt1000 RTD temperature sensor (–20 to +100 °C, ±1.0 °C) and capacitive RH sensor (5–95% RH, ±2.0% RH at 25 °C)
• Backlit LCD with dual-parameter display (e.g., velocity + temperature), data hold, and max/min/avg recording
• Compact ergonomic housing (81 × 165 × 38 mm) with IP54-rated enclosure for resistance to dust ingress and incidental moisture exposure
• Long-duration operation supported by three standard AA alkaline cells (≈150 hours typical usage)

Sample Compatibility & Compliance

These anemometers are validated for use with non-corrosive, particle-laden airstreams typical of cleanroom supply air, fume hood exhausts, and general laboratory ventilation systems. The vane probe is compatible with standard ISO 14644-3 test protocols for uniformity mapping and face velocity verification. Instrument design adheres to IEC 61000-4 electromagnetic immunity requirements and meets mechanical safety criteria per IEC 61010-1 for handheld portable measuring equipment. Calibration certificates include uncertainty budgets compliant with ISO/IEC 17025:2017. For regulated environments, the 6824 supports audit-ready data export (via optional RS-232 interface) with timestamped records suitable for 21 CFR Part 11-compliant workflows when paired with validated software.

Software & Data Management

The 6822/6824 series supports optional PC connectivity through Kanomax’s proprietary KAN-LOG software (Windows-compatible), enabling automated data capture, multi-point grid logging, and report generation per ISO 14644-3 Annex B. All stored measurements include date/time stamps, instrument ID, operator ID (user-definable), and environmental metadata (temperature, RH where applicable). Raw CSV exports support integration into LIMS or electronic lab notebooks. Software-generated reports include statistical summaries (mean, SD, CV%), pass/fail flags against user-specified limits, and annotated duct geometry diagrams—facilitating rapid compliance review during FDA or EMA inspections.

Applications

• ISO 14644-1 cleanroom classification and recertification (supply air velocity mapping at HEPA filter outlets)
• HVAC system balancing and TAB (Testing, Adjusting, and Balancing) per ASHRAE Guideline 1 and NEBB standards
• Pharmaceutical aseptic processing line qualification (e.g., isolator glove port velocity checks)
• Biological safety cabinet (BSC) and laminar flow workstation performance verification per NSF/ANSI 49
• Industrial hygiene assessments for local exhaust ventilation (LEV) capture velocity validation
• Academic and industrial cleanroom maintenance programs requiring documented, repeatable airflow verification

FAQ

What is the difference between the 6822 and 6824 models?
The 6822 measures air velocity and calculates volumetric flow only. The 6824 adds integrated temperature and relative humidity sensing, enabling simultaneous environmental parameter acquisition for comprehensive cleanroom condition assessment.
Can this anemometer be used in high-temperature ducts up to 100 °C?
Yes—the probe and main unit are rated for continuous operation from –20 °C to +100 °C. However, prolonged exposure above 60 °C may reduce battery life and require periodic recalibration verification.
Is the device suitable for ISO Class 5 (Class 100) cleanroom certification?
Yes—its 0.01 m/s resolution, ±3% accuracy, and stable vane response meet the sensitivity and repeatability requirements specified in ISO 14644-3 for ultra-low-velocity mapping in unidirectional airflow zones.
Does it support metric units (m³/h) for airflow calculation?
Yes—users can select either CFM or m³/h as the primary airflow unit; duct dimensions may be entered in mm, cm, inches, or feet.
How is calibration traceability maintained?
Each unit ships with a factory calibration certificate referencing NIST-traceable wind tunnel standards. Optional annual recalibration services are available through Kanomax-authorized labs accredited to ISO/IEC 17025.