Kanomax DALT6900 Duct Air Leakage Tester
| Brand | Kanomax |
|---|---|
| Model | DALT6900 |
| Flow Range (Matrix) | 36–640 m³/h |
| Flow Range (Nozzle) | 4–36 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 | DALT6900-0E: 110–120 V, 1Φ, 50/60 Hz, 16 A |
| DALT6900-1E | 220–240 V, 1Φ, 50/60 Hz, 10 A |
| Net Weight | ~72 kg |
| Dimensions (W×D×H) | 54×50×120 cm |
| Data Storage | 1000 test records |
| Display | 5-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 Duct Air Leakage Tester is a precision-engineered instrument designed for quantitative, standardized evaluation of air leakage in HVAC duct systems. It operates on the principle of controlled pressurization—either positive or negative—followed by volumetric flow measurement via calibrated matrix and nozzle flow elements. By establishing a known pressure differential across a sealed duct section and measuring the compensating airflow required to maintain that differential, the DALT6900 calculates leakage rate in real time with traceable metrological integrity. This method aligns with internationally recognized duct airtightness testing protocols and supports compliance-driven commissioning workflows in commercial, institutional, and industrial HVAC installations.
Key Features
- Dual-range flow measurement architecture: high-capacity matrix module (36–640 m³/h) for whole-system testing and low-flow nozzle module (4–36 m³/h) for localized or low-leakage segment verification
- Simultaneous real-time acquisition of leakage volume, static pressure (±2500 Pa), ambient temperature (0–60 °C), and barometric pressure (70–130 kPa)
- Integrated 5-inch full-color LCD touchscreen interface with intuitive icon-based navigation, eliminating external PCs or auxiliary controllers
- Onboard data management: stores up to 1000 complete test records—including timestamp, pressure setpoint, measured flow, environmental conditions, and pass/fail status—accessible for review, export, or deletion
- Rugged industrial chassis (72 kg net weight, 54×50×120 cm footprint) optimized for field deployment and repeated transport between job sites
- Configurable power input options: 110–120 V (16 A) or 220–240 V (10 A), single-phase, 50/60 Hz, enabling global use without voltage conversion hardware
Sample Compatibility & Compliance
The DALT6900 is validated for use on rigid and semi-rigid rectangular, round, and oval HVAC ductwork constructed from galvanized steel, aluminum, fiberglass-reinforced polymer (FRP), and other common sheet-metal or composite materials. It accommodates both isolated duct segments (e.g., post-installation branch sections) and fully assembled systems—including AHUs, fire dampers, volume control dampers, and transition fittings—under operational pressure classes defined in EN 1507 and SMACNA. Test results are directly interpretable against pass/fail thresholds specified in EN 12237:2002 (Class A–C), Eurovent 2/2 (tightness classes L1–L3), DW/143 (UK Building Regulations), and China’s GB 50243–2002. All internal transducers are factory-calibrated per ISO/IEC 17025–accredited procedures, and calibration certificates include uncertainty budgets traceable to NIST or equivalent national standards.
Software & Data Management
The embedded firmware implements deterministic real-time control logic with <100 ms loop response for stable pressure regulation during dynamic leakage events. Data logging conforms to audit-trail requirements: each stored record includes operator ID (optional entry), test location identifier, start/stop timestamps, environmental metadata, raw sensor outputs, and final classification per selected standard. While no proprietary PC software is required for basic operation, optional USB export enables CSV-formatted reports compatible with Excel, LabVIEW, or enterprise CMMS platforms. The system does not incorporate network connectivity or cloud upload functionality, preserving data sovereignty and simplifying validation under GLP or GMP environments where offline instrumentation is mandated.
Applications
- Commissioning verification of newly installed HVAC duct networks in hotels, hospitals, data centers, and government facilities
- Periodic maintenance auditing of aging duct systems to quantify degradation and prioritize retrofit interventions
- Third-party certification testing for LEED EQ Credit 1 (Minimum Indoor Air Quality Performance) and BREEAM HEA 02 (Thermal Comfort)
- Factory acceptance testing (FAT) of pre-insulated duct modules prior to site delivery
- Research and development of novel duct sealing compounds, gasket materials, and joint configurations under controlled pressure cycling
- Training and competency assessment for HVAC technicians enrolled in ASHRAE Guideline 12–2020–aligned certification programs
FAQ
Does the DALT6900 require annual recalibration?
Yes. Kanomax recommends annual calibration of all primary sensors (differential pressure, volumetric flow, temperature, barometric pressure) against certified reference standards to maintain compliance with EN 12237 and SMACNA reporting requirements.
Can the DALT6900 test ducts under both positive and negative pressure?
Yes. The unit supports bidirectional pressurization via reversible fan drive and dual-port static pressure ports, enabling full compliance with EN 1507 Clause 6.3.3 for Class A–C duct testing.
Is the device suitable for outdoor use in variable ambient conditions?
The operating temperature range (0–60 °C) and IP54-rated enclosure permit use in unconditioned mechanical rooms and rooftop equipment areas; however, direct exposure to rain, condensation, or sustained temperatures below 0 °C is not supported.
How is test pass/fail status determined?
Pass/fail logic is applied automatically based on user-selected standard (e.g., EN 12237 Class C allows ≤6.5 m³/(h·m²) at 400 Pa), with real-time comparison of measured leakage per unit surface area against the threshold.
Does the DALT6900 meet FDA 21 CFR Part 11 requirements?
No. As a standalone field instrumentation device without electronic signature capability, audit trail export, or user access controls, it is not configured for regulated pharmaceutical or biotech cleanroom HVAC validation under Part 11.
