KANOMAX Model 6720-DP Handheld Differential Pressure Meter

Overview

The KANOMAX Model 6720-DP is a high-precision handheld differential pressure meter engineered for quantitative airflow and static pressure validation in controlled environments. It operates on the principle of piezoresistive pressure transduction, delivering stable, low-drift measurements across its full −2500 to +2500 Pa range. Unlike general-purpose analog gauges, the 6720-DP integrates dual-sensor architecture—capable of simultaneous differential pressure and velocity acquisition—when paired with certified accessories such as NIST-traceable pitot tubes or calibrated multi-point air velocity matrices. Its design targets mission-critical applications where regulatory traceability, repeatability, and real-time data integrity are mandatory: biosafety cabinet face velocity certification per NSF/ANSI 49, HVAC system balancing per ASHRAE Guideline 1, cleanroom classification per ISO 14644-3, and pharmaceutical facility commissioning under EU GMP Annex 1.

Key Features

• 4.3-inch capacitive touchscreen interface with intuitive icon-driven navigation and multilingual support (English, Japanese, Chinese, Spanish, German)
• Dual-mode measurement capability: direct differential pressure (DP) mode and derived volumetric airflow mode via integrated K-factor compensation
• Bluetooth 4.2 wireless connectivity enabling secure pairing with iOS and Android devices running the official KANOMAX SmartLink™ mobile application
• On-device statistical processing: real-time calculation and display of min/max/average/cumulative values for both pressure and velocity parameters
• High-resolution readouts: 0.001 Pa pressure resolution and 0.01 m/s velocity resolution ensure detection of subtle system deviations
• Low-power architecture supporting up to 14 hours of continuous operation on four standard AA alkaline cells; automatic sleep mode activates after 5 minutes of inactivity
• Robust mechanical design: IP54-rated enclosure, shock-absorbing silicone bumper, and ergonomic hand grip optimized for single-handed use in confined spaces

Sample Compatibility & Compliance

The 6720-DP is validated exclusively for clean, dry, non-corrosive gases—including ambient air, nitrogen, and compressed instrument air—within its specified operating temperature and humidity limits (0–60 °C, non-condensing). It is not rated for liquid media, explosive atmospheres (ATEX), or particulate-laden industrial exhaust streams. The instrument meets electromagnetic compatibility requirements per IEC 61326-1:2013 and carries CE marking for conformity with the EU Low Voltage and EMC Directives. For regulated environments, its data acquisition workflow supports ALCOA+ principles: attributable, legible, contemporaneous, original, accurate, complete, consistent, enduring, and available. Audit trails, user authentication, and electronic signature capability are implemented within the SmartLink™ app to facilitate compliance with FDA 21 CFR Part 11 and EU Annex 11 requirements when used in GxP settings.

Software & Data Management

The KANOMAX SmartLink™ mobile application serves as the primary interface for configuration, remote control, and post-processing. It enables full parameter setup—including K-factor adjustment, unit conversion (Pa, mmH₂O, inH₂O, m/s, fpm), time-stamped logging, and customizable report templates. All measurements are stored locally on the device (8,000 records) and synchronized to the mobile app (10,000 records), with optional export to CSV or PDF formats via Bluetooth-connected thermal printers or USB mass storage. Firmware updates are delivered over-the-air through the app, ensuring long-term maintainability without hardware dependency. Raw data files include embedded metadata: timestamp, GPS coordinates (if enabled), operator ID, sensor serial number, and calibration due date—enabling full chain-of-custody documentation.

Applications

• Biosafety cabinet (BSC) and laminar flow hood face velocity verification per NSF/ANSI 49 and EN 12469
• HEPA filter leak testing using upstream/downstream DP monitoring during DOP or PAO challenge
• HVAC duct static pressure profiling and fan performance curve generation
• Cleanroom room-to-room pressure cascade validation for ISO Class 5–8 facilities
• Pharmaceutical isolator and RABS differential pressure mapping for containment assurance
• Lab ventilation system commissioning and periodic requalification per ISO 554 and ASHRAE Standard 110

FAQ

Is the 6720-DP suitable for ISO 14644-3 cleanroom certification?
Yes—its ±1.5% accuracy, 0.001 Pa resolution, and traceable calibration path meet the instrumentation requirements for differential pressure mapping in cleanrooms classified under ISO 14644-3.
Can the device store and export data without a smartphone?
Yes—the internal memory retains 8,000 measurement sets independently; data may be exported via USB to a PC using the included communication cable and KANOMAX Data Manager software.
What is the recommended recalibration interval?
KANOMAX recommends annual calibration against a NIST-traceable reference standard, or more frequently if subjected to mechanical shock, extreme temperature cycling, or exposure to condensation.
Does the 6720-DP support custom K-factors for non-standard pitot tubes?
Yes—the SmartLink™ app allows manual entry and storage of user-defined K-coefficients for each connected probe, enabling metrological traceability for proprietary or third-party velocity sensors.
Is firmware update functionality available outside the mobile app?
No—firmware updates require the SmartLink™ app and an active Bluetooth connection; no standalone PC-based updater is provided.