Kanomax 6705 Air Flow Hood Anemometer

Overview

The Kanomax 6705 Air Flow Hood Anemometer is a portable, handheld volumetric airflow measurement system engineered for precision and reliability in HVAC commissioning, facility validation, and environmental monitoring applications. It operates on the principle of integrated velocity-area integration: airflow is captured uniformly across a calibrated hood aperture, and the instrument computes volumetric flow rate (m³/h) by multiplying the average face velocity—measured via internal thermal anemometer arrays or optional external probes—with the effective net area of the selected hood. Unlike single-point anemometers, the 6705 eliminates spatial averaging errors by ensuring laminar, fully developed flow conditions within its sealed hood enclosure. Its design conforms to ISO 16813:2006 (HVAC performance testing), ASHRAE Guideline 12-2020 (commissioning of HVAC systems), and supports protocols required for ISO 14644-3 cleanroom certification and FDA-regulated pharmaceutical facility qualification.

Key Features

• High-resolution 3.5-inch backlit monochrome LCD with manual 360° rotation for ergonomic viewing under varied lighting and mounting conditions
• Integrated backpressure compensation algorithm to correct for static pressure differentials during duct or grille measurements, ensuring ±2% full-scale accuracy across the entire 40–3800 m³/h range
• Onboard real-time clock and battery-level monitoring for traceable, time-stamped data acquisition compliant with GLP and GMP documentation requirements
• Dual-mode operation: direct hood-based volumetric measurement and optional probe-based velocity profiling (via compatible pitot tubes or multi-point wind matrices)
• Robust mechanical architecture: aluminum-magnesium alloy housing rated IP54 for dust and splash resistance; operating temperature range of 0–50 °C and humidity tolerance up to 100% RH non-condensing
• Expandable connectivity: native USB and RS-232 interfaces for PC synchronization and printer output; Bluetooth 4.2 support available via firmware update for wireless telemetry and remote configuration

Sample Compatibility & Compliance

The Kanomax 6705 accommodates a wide array of standard and custom hood configurations—including 610 × 610 mm (standard), 305 × 1220 mm, 915 × 915 mm, and 1220 × 1220 mm—to accommodate diffusers, VAV boxes, supply/exhaust grilles, and laminar flow hoods. Its transparent polycarbonate viewing window enables visual verification of seal integrity and airflow uniformity during measurement. All factory-calibrated hoods are traceable to JCSS (Japanese Calibration Service System) standards. The instrument meets CE marking requirements under the EMC Directive 2014/30/EU and Low Voltage Directive 2014/35/EU, and complies with RoHS 2011/65/EU restrictions on hazardous substances. While not intrinsically safe, it is approved for use in non-hazardous indoor environments per IEC 61010-1:2010 safety standards.

Software & Data Management

The 6705 ships with Kanomax’s proprietary AirFlow Manager software (Windows-compatible), enabling batch download, statistical analysis (mean, min/max, standard deviation), report generation (PDF/CSV), and audit trail export. Each stored record includes timestamp, hood ID, ambient temperature/humidity (if measured), operator ID (user-definable), and raw velocity matrix data. The system supports 21 CFR Part 11–compliant workflows when paired with validated software versions and networked authentication—ideal for regulated laboratories and pharmaceutical manufacturing sites. Data encryption and user-access levels (admin/operator) are configurable to meet ISO/IEC 27001-aligned information security policies.

Applications

• HVAC system balancing and TAB (Testing, Adjusting, and Balancing) in commercial and healthcare facilities
• Cleanroom air change rate verification per ISO 14644-1 and EU GMP Annex 1
• Exhaust hood face velocity validation in laboratory fume hood compliance (ANSI/AIHA Z9.5)
• Room pressurization audits and containment verification in isolation rooms and BSL-2/3 labs
• Pre- and post-filter efficiency assessment using upstream/downstream hood measurements
• Energy audit support through quantitative ventilation rate mapping across building zones

FAQ

What hood sizes are supported out-of-the-box?
The unit ships with a standard 610 × 610 mm hood; additional sizes—including 305 × 1220 mm, 915 × 915 mm, and 1220 × 1220 mm—are available as certified accessories with individual calibration certificates.
Does the 6705 require annual recalibration?
Yes. Kanomax recommends annual traceable recalibration against NIST-traceable reference standards to maintain stated accuracy; field verification using a secondary reference anemometer is advised before critical measurements.
Can the 6705 measure temperature and humidity simultaneously with airflow?
Yes—the built-in sensors provide concurrent ambient temperature (±0.5 °C) and relative humidity (±3% RH, 10–90% RH range) readings, logged alongside each airflow record.
Is the device suitable for outdoor use?
It is designed for indoor environmental monitoring only; while rated IP54, prolonged exposure to rain, direct sunlight, or sub-zero temperatures is not supported.
How is data integrity ensured during USB transfer?
All data transfers utilize CRC-16 checksum validation; the device implements write-protection locks on active measurement sessions to prevent accidental overwrites or corruption.