Kanomax 6720-DP Differential Pressure and Air Velocity Meter

Overview

The Kanomax 6720-DP is a dual-parameter portable metrology instrument engineered for simultaneous measurement of differential pressure and air velocity in HVAC, cleanroom, and laboratory ventilation systems. It operates on the fundamental principles of pitot-static tube fluid dynamics for velocity determination and high-stability capacitive pressure transduction for differential pressure quantification. Designed to meet the operational rigor of field-based performance validation—such as fan system efficiency testing, biosafety cabinet face velocity certification, and ISO 14644-3-compliant cleanroom airflow characterization—the 6720-DP delivers traceable, repeatable data under variable environmental loads. Its modular architecture supports interchangeable probes (pitot tubes, air velocity matrices, and differential pressure manifolds), enabling configuration-specific calibration traceability to NIST-traceable standards. The instrument complies with core requirements of ANSI/ASHRAE Standard 110 (for fume hood testing), ISO 14644-3 Annex B (cleanroom airflow uniformity), and EN 12599 (HVAC system commissioning).

Key Features

• Simultaneous real-time acquisition of differential pressure (±2500 Pa) and air velocity (0.15–40 m/s with pitot tube; 0.15–15 m/s with velocity matrix)
• High-resolution 4.3-inch capacitive touchscreen interface with intuitive icon-driven navigation and multi-language support (English, Japanese, Chinese, Korean, Spanish)
• Bluetooth 4.2 BLE module enabling secure wireless communication with iOS/Android devices for remote control, live data streaming, and firmware updates
• Dual-storage architecture: onboard memory retains up to 8,000 measurement records with timestamp, probe ID, and environmental metadata; companion mobile app stores up to 10,000 records with CSV export capability
• Configurable K-factor adjustment for pitot tube correction across duct geometries and flow profiles, supporting ASHRAE Fundamentals Chapter 42 guidance
• Low-power design: 4 × AA alkaline batteries provide ≥14 hours of continuous operation; automatic sleep mode activates after 5 minutes of inactivity
• Integrated USB-C port for direct data transfer and optional DC 5 V external power supply compatibility

Sample Compatibility & Compliance

The 6720-DP is validated for use with standardized probe types including stainless-steel pitot tubes (diameter 6 mm, L = 1.2 m), 3×3 and 5×5 air velocity matrices (for grille and diffuser mapping), and flexible silicone differential pressure tubing (ID 4 mm, OD 6 mm). All probe interfaces adhere to IEC 61000-4-2 (ESD immunity) and IEC 61000-4-3 (radiated RF immunity) standards. Measurement uncertainty budgets are documented per ISO/IEC 17025:2017 Annex A.3, with calibration certificates available traceable to JCSS-accredited laboratories in Japan. The device satisfies functional requirements for GLP-compliant airflow verification in pharmaceutical manufacturing environments (per EU GMP Annex 1, §4.23) and supports audit-ready data integrity when used with the Kanomax Data Manager Pro software.

Software & Data Management

The Kanomax Data Manager Pro application (v3.2+) provides comprehensive post-processing functionality: statistical analysis (min/max/mean/cumulative flow), spatial averaging across matrix arrays, and automated report generation compliant with ISO 14644-3 reporting templates. All stored datasets include embedded metadata: date/time stamp (RTC synchronized), ambient temperature/humidity (via optional sensor), battery level, probe serial number, and user-defined test ID. Audit trail functionality logs all parameter changes, data deletions, and firmware updates—meeting FDA 21 CFR Part 11 electronic record requirements when deployed with password-protected user roles and digital signature authentication.

Applications

• Fan performance testing per AMCA 210–16 and ISO 5801: static pressure rise, volumetric flow rate, and total efficiency calculation using combined ΔP and velocity inputs
• Biosafety cabinet face velocity mapping per NSF/ANSI 49: point-by-point scanning with matrix probe and real-time pass/fail threshold alerts
• Cleanroom classification (ISO 14644-1 Class 5–8): uniformity assessment via grid-based velocity sampling and differential pressure monitoring across room-to-room barriers
• HVAC balancing and commissioning: duct traverse measurements, terminal unit airflow verification, and filter bank pressure drop trending
• Exhaust system validation: stack velocity profiling and capture hood face velocity verification in chemical fume hood applications

FAQ

What calibration standards does the 6720-DP support?
It accepts NIST-traceable calibration certificates for both pressure and velocity channels, with factory calibration performed per ISO 17025-accredited procedures at Kanomax Japan’s Yokohama facility.
Can the instrument be used in explosive or hazardous environments?
No—it is not intrinsically safe or ATEX-certified. Use only in non-hazardous, indoor or sheltered outdoor locations per IEC 60529 IP20 rating.
Is the Bluetooth connection encrypted?
Yes—AES-128 encryption secures all BLE data packets between the instrument and paired mobile devices.
How is K-factor applied during pitot tube measurements?
The K-factor is entered manually per probe specification sheet and applied dynamically to raw dynamic pressure readings using Bernoulli’s equation: v = K × √(2·ΔP/ρ), where ρ is local air density.
Does the device support automatic zeroing of differential pressure?
Yes—pressurized zeroing is available via the “Zero Hold” function, which locks the current offset for drift compensation during extended field measurements.