Kanomax DALT6905 Duct Air Leakage Tester
| Brand | Kanomax |
|---|---|
| Origin | Liaoning, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | DALT6905 |
| Price | Upon Request |
| Flow Range (Large Nozzle) | 70–820 m³/h |
| Flow Range (Small Nozzle) | 4–70 m³/h |
| Flow Accuracy | ±2.5% of reading ±0.1 m³/h |
| Flow Resolution | 0.01 m³/h |
| Static Pressure Range | ±2500 Pa |
| Pressure Accuracy | ±1% of reading ±1 Pa |
| Pressure Resolution | 0.1 Pa |
| Temperature Range | 0–60 °C |
| Temp Accuracy | ±0.5 °C |
| Temp Resolution | 0.1 °C |
| Barometric Pressure Range | 70–130 kPa |
| Baro Accuracy | ±2% of reading |
| Baro Resolution | 0.1 kPa |
| Power Supply | 100–120 V / 200–240 V, 1-Phase, 50/60 Hz, 10–16 A |
| Net Weight | 59.8 kg |
| Dimensions (W×D×H) | 480 × 627 × 1124 mm |
| Data Storage | 1000 test records |
| Display | 5-inch color LCD touchscreen |
| Compliance Standards | EN 1507:2006, EN 12237:2003, Eurovent 2/2, DW/143, SMACNA, AABC, GB 50243–2003/2016 |
Overview
The Kanomax DALT6905 Duct Air Leakage Tester is a portable, high-accuracy pressure-based air leakage measurement system engineered for quantitative verification of ductwork airtightness in HVAC, fire protection, and building envelope applications. It operates on the principle of controlled pressurization—either positive or negative—of sealed duct sections or entire systems, followed by precise volumetric flow rate measurement through calibrated nozzles to determine leakage volume under standardized test conditions. Designed for field deployment in commercial, industrial, and institutional construction projects, the DALT6905 meets the physical and metrological requirements of major international duct testing standards, including EN 1507, EN 12237, Eurovent 2/2, DW/143, SMACNA, AABC, and China’s GB 50243–2016. Its compact footprint and optimized weight (59.8 kg net) enable secure transport and rapid setup within SUV trunks—eliminating the need for dedicated service vehicles while maintaining full compliance with on-site commissioning workflows.
Key Features
- Two interchangeable nozzle configurations: large nozzle (70–820 m³/h) for whole-system or high-capacity duct testing; small nozzle (4–70 m³/h) for localized or low-leakage segment validation—both tool-free and plug-and-play
- Full bidirectional static pressure capability (±2500 Pa) with 0.1 Pa resolution and ±1% ±1 Pa accuracy, supporting both pressurization and depressurization protocols per standard requirements
- Integrated environmental compensation: simultaneous real-time measurement of air temperature (0–60 °C, ±0.5 °C), barometric pressure (70–130 kPa, ±2%), and relative humidity (calculated), ensuring traceable, corrected airflow values
- 5-inch color LCD touchscreen interface with intuitive icon-driven navigation, multilingual menu support (English, Chinese, Spanish), and context-sensitive help prompts
- Onboard data management: stores up to 1000 complete test records—including date/time stamp, pressure curve, flow profile, pass/fail status per selected standard, and operator ID—with USB 2.0 export to CSV or PDF
- Ruggedized aluminum chassis with shock-absorbing feet and reinforced handle assembly; IP54-rated enclosure for dust and splash resistance during site use
Sample Compatibility & Compliance
The DALT6905 is validated for use across rectangular, round, and oval duct geometries fabricated from galvanized steel, aluminum, fiberglass, and flexible composite materials. It accommodates duct sizes ranging from 100 mm to 2000 mm nominal diameter or equivalent cross-sectional area. Test configurations include single-section pressurization (e.g., branch ducts), multi-section sequential testing, and whole-system integrity verification—including smoke control and fire-resistance-rated duct assemblies. All measurements are traceable to national standards via factory calibration certificates (NIST-traceable pressure transducers and thermal mass flow sensors). The instrument’s firmware embeds logic engines for automatic pass/fail determination against EN 1507 Class A–D, SMACNA Leakage Classes I–IV, and GB 50243–2016 Level I–III thresholds—reducing interpretation variability and supporting audit-ready documentation for LEED, BREEAM, or local building code submissions.
Software & Data Management
Data acquisition and reporting are governed by Kanomax’s proprietary DALT-Link software suite (v3.2+), compatible with Windows 10/11 and macOS 12+. The software enables remote configuration, firmware updates, and advanced post-test analysis—including pressure decay curve fitting, leakage coefficient derivation (Ls, Lv), and comparative trend reporting across multiple test points. Audit trails record all parameter changes, user logins, and calibration events in accordance with GLP/GMP principles. Exported datasets comply with FDA 21 CFR Part 11 requirements when paired with optional digital signature modules and time-stamped electronic records. Raw data files retain native sensor timestamps, enabling third-party validation using independent calculation tools aligned with ISO/IEC 17025 uncertainty budgets.
Applications
- Commissioning and handover testing of HVAC duct systems in hospitals, laboratories, cleanrooms, and data centers where air containment and energy efficiency are critical
- Fire damper and smoke control duct certification per NFPA 90A and EN 12101–3, verifying integrity under rated differential pressures
- Post-installation QA/QC for prefabricated duct modules prior to on-site assembly
- Leakage diagnostics and remediation verification during retrofit or renovation projects
- Third-party verification for green building certifications (LEED EA Prerequisite 1, BREEAM Hea 02)
- Academic and vocational training in HVAC engineering programs requiring hands-on duct airtightness assessment
FAQ
What standards does the DALT6905 directly support for automated pass/fail evaluation?
It natively implements decision logic for EN 1507:2006 (Classes A–D), EN 12237:2003, Eurovent 2/2, DW/143, SMACNA HVAC Air Duct Leakage Test Manual (2012), AABC Commissioning Group Standards, and GB 50243–2016.
Can the DALT6905 perform tests without external power sources on site?
No—it requires stable AC input (100–240 V, 50/60 Hz); however, its dual-voltage design eliminates the need for voltage converters when operating internationally.
Is the instrument suitable for testing ducts under negative pressure only?
No—it supports symmetrical bidirectional testing from –2500 Pa to +2500 Pa, enabling compliance with standards mandating both pressurization and depressurization protocols.
How is measurement uncertainty accounted for in reported leakage values?
The device applies real-time correction algorithms incorporating temperature, barometric pressure, and nozzle-specific calibration coefficients; total expanded uncertainty (k=2) is documented in the calibration certificate and aligns with ISO/IEC 17025 requirements.
Does the DALT6905 require annual recalibration?
Yes—Kanomax recommends annual factory recalibration or accredited third-party verification to maintain traceability and ensure continued conformance with stated accuracy specifications.
