Kanomax DALT6905 Air Leakage Tester

Overview

The Kanomax DALT6905 Air Leakage Tester is a precision-engineered, portable duct leakage measurement system designed for quantitative verification of air containment integrity in HVAC, fire protection, and pressurized enclosure systems. It operates on the principle of calibrated orifice flow measurement under controlled static pressure differential—applying standardized pressurization protocols to quantify volumetric air leakage rates across ductwork sections or entire installed systems. Unlike qualitative smoke or pressure decay methods, the DALT6905 delivers traceable, repeatable, and standards-compliant quantitative data essential for commissioning, regulatory compliance, and energy performance certification. Its dual-nozzle architecture enables high-fidelity measurement across an exceptionally wide dynamic range—from low-leakage residential duct segments (as low as 4 m³/h) to high-capacity commercial and industrial main trunks (up to 820 m³/h)—without requiring external flow conditioning or auxiliary instrumentation.

Key Features

• Dual interchangeable nozzle configuration: large nozzle (70–820 m³/h) and small nozzle (4–70 m³/h), enabling rapid adaptation to varying duct sizes and leakage magnitudes without recalibration
• High-pressure capability: ±2500 Pa static pressure range supports rigorous testing of high-static HVAC systems, fire-rated ducts, and cleanroom enclosures per EN 12237 and SMACNA Class III requirements
• Integrated environmental sensing: simultaneous real-time acquisition of leakage volume, static pressure, ambient temperature (0–60 °C), and atmospheric pressure (70–130 kPa), all referenced to standard conditions for ISO-compliant reporting
• 5-inch full-color capacitive touchscreen interface with intuitive icon-driven workflow, eliminating reliance on external PCs during field operation
• Onboard storage for up to 1000 complete test records—including timestamp, test parameters, pass/fail status per selected standard, and raw sensor data—with USB 2.0 export capability for audit-ready CSV or PDF reports
• Compact, vehicle-portable form factor (480 × 627 × 1124 mm; 59.8 kg net weight) optimized for SUV trunk deployment, reducing logistical overhead in multi-site commissioning projects

Sample Compatibility & Compliance

The DALT6905 is validated for use across rigid and flexible duct materials—including galvanized steel, aluminum, fiberglass-reinforced polymer (FRP), and fire-rated sheet metal—as well as sealed rooms, air handling units (AHUs), and pressurized stairwells. Its measurement methodology conforms to internationally recognized air tightness test protocols: EN 1507:2006 (flexible ducts), EN 12237:2003 (rigid circular/rectangular ducts), Eurovent 2/2 (HVAC component leakage), DW/143 (UK building regulations), SMACNA HVAC Air Duct Leakage Test Manual (2012 edition), AABC Commissioning Group Standards, and China’s GB 50243–2016 (Code for Acceptance of Ventilation and Air Conditioning Engineering). The instrument’s firmware embeds logic for automatic pass/fail determination based on user-selected standard, duct class, and measured surface area—reducing interpretation error and supporting GLP-aligned documentation practices.

Software & Data Management

All measurement logic, calibration coefficients, and standard-specific calculation algorithms reside in non-volatile firmware. No external software installation is required for basic operation; however, optional PC-based Kanomax DataLink software (v3.2+) enables advanced report generation, trend analysis, and integration with BIM-based commissioning platforms. Data exports include full metadata (operator ID, site ID, duct segment ID, test date/time, environmental conditions), raw sensor time-series, and compliance verdicts traceable to clause-level references within each standard. Audit trails comply with ISO/IEC 17025 documentation requirements and support FDA 21 CFR Part 11–aligned electronic record retention when used in pharmaceutical or healthcare facility validation.

Applications

• Pre-commissioning and post-installation leakage verification of HVAC distribution systems in commercial buildings, hospitals, laboratories, and data centers
• Fire damper and smoke control system integrity validation per NFPA 90A and local fire codes
• Energy code compliance testing (e.g., ASHRAE 90.1, IECC, LEED EA Prerequisite 1)
• Factory acceptance testing (FAT) of prefabricated duct modules prior to site delivery
• Troubleshooting excessive fan energy consumption by isolating high-leakage zones in existing infrastructure
• Third-party commissioning authority (CxA) verification and TAB (Testing, Adjusting, Balancing) reporting

FAQ

Does the DALT6905 require annual recalibration?
Yes. Kanomax recommends factory recalibration every 12 months or after 2000 operating hours, traceable to NIST-certified flow and pressure standards.
Can the instrument measure both positive and negative pressure leakage simultaneously?
No—it performs sequential pressurization tests: one at positive differential pressure (e.g., +250 Pa), then another at negative (e.g., –250 Pa), as mandated by EN 1507 and SMACNA.
Is the device compatible with metric and imperial unit reporting?
Yes. Units are configurable per test session: m³/h and Pa (default), or CFM and inches w.g., with automatic conversion of threshold limits per selected standard.
What environmental conditions affect measurement accuracy?
Ambient temperature stability (±0.5 °C tolerance) and atmospheric pressure compensation are critical; the DALT6905 automatically corrects flow readings using real-time T/P inputs per ISO 5167 Annex C.
How does the DALT6905 differ from the legacy DALT6905 model?
The DALT6905 features reduced footprint (–11% volume), lower mass (–12.2 kg), enhanced nozzle interchangeability, and extended low-flow sensitivity (4 m³/h vs. previous 10 m³/h minimum), while maintaining identical metrological performance and standard coverage.