Kanomax DALT6900 Automated Duct Air Leakage Tester
| Brand | Kanomax |
|---|---|
| Origin | Liaoning, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | DALT6900 |
| Flow Range | 36–640 m³/h (nozzle range: 4–36 m³/h) |
| Accuracy | ±2.5% of reading ±0.1 m³/h (flow), ±1% of reading ±1 Pa (static pressure), ±0.5 °C (temperature), ±2% of reading (atmospheric pressure) |
| Resolution | 0.01 m³/h (flow), 0.1 Pa (pressure), 0.1 °C (temperature), 0.1 kPa (atmospheric pressure) |
| Static Pressure Range | ±2500 Pa |
| Temperature Range | 0–60 °C |
| Atmospheric Pressure Range | 70–130 kPa |
| Power Supply | DALT6900-0E: 110–120 V, 1-phase, 50/60 Hz, 16 A |
| DALT6900-1E | 220–240 V, 1-phase, 50/60 Hz, 10 A |
| Net Weight | ~72 kg |
| Dimensions | 540 × 500 × 1200 mm |
| Data Storage | 1000 test records |
| Display | 4.7-inch color LCD touchscreen |
| Compliance Standards | EN 1507:2006, EN 12237:2002, Eurovent 2/2, DW/143, SMACNA HVAC Air Duct Leakage Testing Standard, GB 50243–2002 |
Overview
The Kanomax DALT6900 Automated Duct Air Leakage Tester is a precision-engineered instrument designed for quantitative assessment of air leakage in HVAC ductwork systems under controlled positive and negative static pressure conditions. It operates on the principle of calibrated orifice flow measurement—utilizing interchangeable nozzles and integrated differential pressure transducers—to determine volumetric leakage rates in accordance with internationally recognized duct airtightness testing protocols. The system applies regulated pressurization to sealed duct sections or fully assembled systems, then measures the airflow required to maintain target static pressures. This enables direct evaluation of duct integrity per mandatory building commissioning and energy code requirements. Its robust mechanical architecture, combined with real-time environmental compensation (temperature, atmospheric pressure), ensures high reproducibility across diverse climatic and site conditions—making it suitable for use in commercial high-rises, hospitals, laboratories, and public infrastructure projects where HVAC efficiency and indoor air quality compliance are critical.
Key Features
- Simultaneous dual-mode operation: certified performance for both positive-pressure (up to +2500 Pa) and negative-pressure (down to –2500 Pa) duct leakage testing
- Multi-range flow measurement capability: primary range 36–640 m³/h supported by high-accuracy nozzle bank (4–36 m³/h) for low-leakage applications
- Integrated environmental sensors: real-time monitoring and automatic compensation for ambient temperature (0–60 °C, ±0.5 °C), atmospheric pressure (70–130 kPa, ±2%), and static pressure (±2500 Pa, ±1% ±1 Pa)
- 4.7-inch full-color resistive touchscreen interface with intuitive icon-driven navigation—designed for field technicians with minimal training requirements
- Onboard data management: stores up to 1000 complete test records including timestamp, pressure profile, leakage rate, environmental parameters, and pass/fail status
- Compliance-ready reporting: generates standardized test reports aligned with EN, Eurovent, SMACNA, and Chinese national standard GB 50243–2002 documentation structures
- Modular mechanical design: compact footprint (540 × 500 × 1200 mm) and 72 kg net weight enable transport between floors or job sites without specialized lifting equipment
Sample Compatibility & Compliance
The DALT6900 is validated for use with rigid and semi-rigid duct constructions—including galvanized steel, aluminum, fiberglass-reinforced plastic (FRP), and flexible insulated ducts—across rectangular, round, and oval cross-sections. It supports segmented testing of individual duct runs as well as whole-system validation after mechanical completion. The instrument conforms to the test methodology and acceptance criteria defined in EN 1507:2006 (flexible ducts), EN 12237:2002 (rigid ducts), Eurovent 2/2 (European HVAC component certification), DW/143 (UK ductwork specification), SMACNA HVAC Air Duct Leakage Testing Manual (U.S. industry benchmark), and GB 50243–2002 (Chinese Code for Construction Quality Acceptance of Ventilation and Air Conditioning Works). All calibration procedures follow traceable NIST-equivalent reference standards, and factory verification includes documented uncertainty budgets per ISO/IEC 17025 principles.
Software & Data Management
Data acquisition and analysis are handled entirely onboard via embedded firmware compliant with IEC 62443-3-3 cybersecurity baseline requirements for industrial control devices. Each test record contains raw sensor outputs, compensated leakage calculations, pressure ramp profiles, and operator-entered metadata (project ID, duct zone, technician ID). Stored records support export via USB 2.0 to CSV format for integration into third-party commissioning databases or BIM-linked QA/QC platforms. Audit trails include immutable timestamps and user authentication logs—meeting GLP-aligned documentation practices for federally funded infrastructure projects. While the device does not require external PC software for basic operation, optional Kanomax DuctTest Suite v3.1 (Windows 10/11 compatible) provides advanced statistical trending, multi-project comparison dashboards, and automated PDF report generation with digital signature fields for sign-off workflows.
Applications
- Pre-commissioning verification of ductwork airtightness prior to handover in LEED-, BREEAM-, or China Green Building Label-certified developments
- Periodic maintenance audits of hospital HVAC systems to ensure containment integrity in isolation rooms and OR suites per HTM 03-01 and GB 51039–2014
- Energy performance diagnostics in retrofitted commercial buildings—quantifying leakage-induced fan energy penalties per ASHRAE Guideline 12-2020
- Third-party inspection services conducted by provincial construction quality supervision stations and architectural research institutes in China
- Factory acceptance testing (FAT) of prefabricated duct modules prior to site delivery
- Validation of fire damper and control valve sealing performance under rated pressure differentials
FAQ
Does the DALT6900 comply with FDA or ISO 13485 requirements for cleanroom HVAC validation?
No—the DALT6900 is not designed for pharmaceutical-grade cleanroom certification. It meets construction and commissioning standards (e.g., SMACNA, GB 50243), but cleanroom classification requires particle counters and ISO 14644-3 protocols.
Can test data be exported in XML format for integration with Cx-as-a-Service platforms?
Native XML export is not supported; however, CSV output is structured to align with ASHRAE Guideline 0–2019 data schema conventions and can be mapped via middleware.
Is on-site recalibration possible without returning the unit to an authorized service center?
Field zeroing and span verification using NIST-traceable reference manometers and dry gas meters are supported per Section 7.2 of the Operator Manual—but full metrological recalibration requires certified laboratory conditions.
What is the recommended interval between factory recalibrations?
Kanomax recommends annual recalibration for instruments used in accredited inspection bodies; biennial recalibration is acceptable for internal facility maintenance programs operating within ISO 55001 asset management frameworks.
Does the instrument support Bluetooth or Wi-Fi connectivity for remote monitoring?
No wireless interfaces are included—this omission was intentional to eliminate electromagnetic interference risks during sensitive pressure measurements and to maintain compliance with IEC 61000-6-2 immunity requirements in industrial environments.
