Kanomax DALT6905 Portable Duct Air Leakage Tester

Overview

The Kanomax DALT6905 Portable Duct Air Leakage Tester is an engineered solution for quantitative, field-deployable assessment of air leakage in HVAC ductwork, fire-resistance-rated ventilation systems, and pressurized enclosures. It operates on the principle of controlled pressurization—using calibrated orifice nozzles to generate known airflow rates while precisely measuring static pressure differential across duct sections. By applying standardized pressure differentials (typically up to ±2500 Pa), the instrument calculates volumetric leakage flow in accordance with internationally recognized test protocols. Designed specifically for commissioning engineers, building performance auditors, and mechanical contractors, the DALT6905 delivers traceable, repeatable measurements that support compliance verification under both European and Chinese regulatory frameworks—including EN 1507, EN 12237, SMACNA, and GB 50243.

Key Features

• Modular dual-nozzle configuration: Large nozzle (70–820 m³/h) for system-level testing; small nozzle (4–70 m³/h) for localized or low-leakage duct segments—both interchangeable without tools
• Integrated high-resolution sensing: Simultaneous real-time acquisition of leakage flow (±2.5% accuracy), static pressure (±1% ±1 Pa), ambient temperature (±0.5 °C), and barometric pressure (±2% of reading)
• Field-optimized portability: Compact footprint (480 × 627 × 1124 mm) and net weight of 59.8 kg enable secure transport in standard SUV trunks—eliminating need for dedicated service vehicles
• Intuitive 5-inch color LCD touchscreen interface with multilingual UI support (English, Chinese, Spanish), graphical trend display, and context-sensitive help prompts
• Onboard compliance engine: Preloaded test templates aligned to EN 1507:2006, EN 12237:2003, Eurovent 2/2, DW/143, SMACNA HVAC Air Duct Leakage Test Manual, AABC Commissioning Standard, and GB 50243–2016
• Built-in data management: Stores up to 1000 complete test records with timestamp, location tag, operator ID, pressure curve, and pass/fail status—exportable via USB to CSV or PDF reports

Sample Compatibility & Compliance

The DALT6905 is validated for use across rigid and flexible duct constructions—including galvanized steel, aluminum, fiberglass-reinforced plastic (FRP), and fire-rated composite ducts—under both positive and negative pressure conditions. Its measurement methodology conforms to ISO/IEC 17025-aligned validation practices and supports audit-ready documentation for LEED EA Credit 1, ASHRAE Guideline 12, and local energy code enforcement (e.g., China’s GB 50189). All internal calibration references are NIST-traceable, and pressure transducers are factory-certified per EN 61326-1 for electromagnetic compatibility in industrial environments. The device meets CE marking requirements for EMC and LVD directives and complies with IEC 61000-4-2 (ESD immunity) and IEC 61000-4-3 (radiated RF immunity).

Software & Data Management

Firmware v3.2 includes a secure, password-protected operating system with configurable user roles (Operator, Supervisor, Administrator) and full audit trail logging per FDA 21 CFR Part 11 principles—including electronic signatures, change history, and tamper-evident record integrity. Data export supports both raw measurement logs (CSV) and formatted compliance reports (PDF) containing test parameters, pass/fail determination per selected standard, annotated pressure-flow curves, and digital signature fields. Optional PC software (Kanomax DALT Link v2.1) enables centralized fleet management, firmware updates, and batch report generation with customizable cover pages and company branding.

Applications

• Pre-commissioning verification of HVAC duct airtightness prior to handover (EN 1507 Class A–C, SMACNA Tight, Medium, and Low Leakage classes)
• Post-installation leak detection and quantification in smoke control and pressurization systems (EN 12101-3, NFPA 92)
• Energy efficiency audits targeting duct leakage reduction per ASHRAE Standard 152 and ISO 5221
• Factory acceptance testing (FAT) of prefabricated duct modules before site delivery
• Periodic maintenance validation of aging duct systems in hospitals, laboratories, and cleanrooms requiring ISO 14644-3 classified environments
• Research applications involving airflow boundary condition characterization in building physics simulations

FAQ

What standards does the DALT6905 directly support for automated pass/fail evaluation?
It embeds calculation logic for EN 1507:2006, EN 12237:2003, Eurovent 2/2, DW/143, SMACNA, AABC, and GB 50243–2016—automatically applying the correct leakage limit equations based on duct class, size, and pressure test level.
Can the instrument perform both positive and negative pressure tests?
Yes—the DALT6905 is fully bidirectional, capable of generating and regulating pressure from –2500 Pa to +2500 Pa with equal accuracy and stability.
Is calibration certification included with purchase?
Each unit ships with a factory calibration certificate (traceable to NIST and CNAS-accredited labs), valid for 12 months. Optional annual recalibration services are available through Kanomax-authorized service centers.
How is data security ensured during USB export?
Exported files are digitally signed and include embedded metadata (test ID, timestamp, firmware version, operator ID) to prevent unauthorized modification—supporting GLP/GMP data integrity requirements.
Does the device require external power sources in the field?
No—it operates natively on universal AC input (100–240 V, 50/60 Hz); no batteries or inverters are needed, enabling continuous operation at construction sites with standard temporary power distribution.