Kanomax 6705 Air Flow Hood

Overview

The Kanomax 6705 Air Flow Hood is a precision-engineered, portable airflow measurement instrument designed for quantitative verification of supply and exhaust air volumes in HVAC systems, cleanrooms, laboratories, and healthcare ventilation installations. It operates on the principle of integrated multi-point velocity sampling across a calibrated hood aperture—using an internal pitot-static probe array—and applies real-time differential pressure-to-flow conversion algorithms to deliver volumetric flow rates in m³/h with high spatial averaging and minimal turbulence-induced error. Unlike single-point anemometers, the 6705’s large-area capture geometry (standard 610 × 610 mm) ensures representative integration over duct grilles, diffusers, and terminal devices—even under non-uniform velocity profiles. Its robust mechanical architecture, combined with full-range thermal and humidity compensation, enables stable performance across ambient conditions from 0 to 60 °C and 0–100% RH—making it suitable for both routine QA/QC audits and critical ISO 14644-3 or HTM 03-01 compliance testing.

Key Features

• Wide dynamic flow range: 40–3800 m³/h with ±2% full-scale accuracy—validated per ASHRAE Guideline 111-2022 test protocols
• 3.5-inch manually rotatable backlit LCD display supporting intuitive menu navigation, real-time trend visualization, and on-device data review
• Onboard clock, battery-level indicator, and dual power options: 4 × AA alkaline batteries (up to 9 hours continuous use) or external DC 5 V adapter
• Integrated data management: 3,000 measurement records stored with timestamp, location tag, and environmental metadata (T/RH)
• Standard communication interfaces: USB 2.0 for PC synchronization and firmware updates; RS-232 port for direct connection to legacy printers or building automation systems
• Bluetooth-enabled mobile compatibility via Kanomax AirFlowLink™ iOS/Android app—enabling remote control, live streaming, and cloud-ready export (CSV/PDF)
• Modular hood system: Interchangeable aperture sizes—including 610×610 mm (standard), 305×1220 mm, 915×915 mm, and up to 1400×800 mm—for adaptability to ceiling diffusers, VAV boxes, and laminar flow hoods

Sample Compatibility & Compliance

The Kanomax 6705 is engineered for direct placement over rectangular and square air terminals without requiring upstream straight-run duct sections. Its low-profile design minimizes flow disturbance, while the transparent front window allows visual alignment and leak inspection during measurement. The instrument meets essential requirements for HVAC balancing and TAB (Testing, Adjusting, and Balancing) workflows as defined by ANSI/ASHRAE Standard 111, ISO 16813:2021 (HVAC performance assessment), and EU Directive 2010/31/EU (Energy Performance of Buildings). While not certified to IEC 61000-4 EMC immunity levels out-of-box, its internal filtering and shielded analog signal path ensure reliable operation in electromagnetically noisy environments such as hospital utility corridors or industrial plant rooms. Calibration traceability follows JIS Z 8015 and NIST-traceable standards through Kanomax’s authorized service centers.

Software & Data Management

Kanomax provides the free AirFlowLink desktop software (Windows/macOS) and companion mobile application for comprehensive post-processing and reporting. The platform supports audit-trail generation—including operator ID, calibration status, and time-stamped edits—aligned with GLP principles. Export formats include CSV (for Excel/LabVIEW integration), PDF reports with embedded graphs and pass/fail annotations, and XML for BMS interoperability. All stored datasets retain environmental context: simultaneous temperature, relative humidity, and barometric pressure readings are logged alongside flow values. Firmware updates—delivered quarterly—introduce enhanced algorithmic corrections for high-humidity drift and expanded hood size auto-recognition.

Applications

• HVAC system commissioning and recommissioning per ASHRAE Guideline 0 and ISO 16813
• Cleanroom airflow uniformity and total volume verification (ISO 14644-3 Class 5–8)
• Healthcare facility ventilation compliance (HTM 03-01, NHS Estates D08)
• Pharmaceutical manufacturing environmental monitoring (EU GMP Annex 1, FDA 21 CFR Part 211)
• Energy audits and retro-commissioning studies under ISO 50001 frameworks
• Educational laboratory instruction in fluid mechanics and building science curricula

FAQ

What is the recommended recalibration interval for the Kanomax 6705?
Kanomax recommends annual factory recalibration or after 2,000 operating hours—whichever occurs first—to maintain traceable accuracy per ISO/IEC 17025 requirements.
Can the 6705 measure airflow in exhaust hoods or fume cabinets?
Yes—the device supports bidirectional flow measurement and includes negative pressure compensation logic for accurate extraction rate quantification at laboratory fume hoods and local exhaust ventilation (LEV) points.
Is the 6705 compatible with third-party BMS or SCADA platforms?
Via optional RS-232-to-MODBUS RTU converter modules, the 6705 can integrate into Modbus-enabled building management systems for periodic polling of real-time flow and environmental data.
Does the instrument support GLP/GMP-compliant electronic signatures?
While the 6705 itself does not embed digital signature hardware, AirFlowLink software supports password-protected user roles and audit-log export meeting FDA 21 CFR Part 11 predicate rule expectations when deployed on validated IT infrastructure.
How does the 6705 handle low-flow conditions below 40 m³/h?
Below the specified lower limit, measurement uncertainty increases beyond ±2% FS; for sub-40 m³/h applications (e.g., biological safety cabinets), Kanomax recommends the 6715 model with extended low-flow sensitivity and built-in wind matrix capability.