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Kanomax has developed the most advanced Duct Air Leakage Tester (DALT) for commercial duct systems. It’s designed to be simple to use, accurate, and extremely convenient. The instrument provides step-by-step duct leakage test configuration and automated leakage testing based on the SMACNA HVAC Air Duct Leakage Test Manual, and is accurate to ±2.5% of reading. Though built tough with an on-board, powerful motor, the DALT 6900 is very easy to transport on its pneumatic tires and leaves little to no footprint on the job site.
The instrument requires very little training due to the easy-to-follow, full color HD touch screen display through which the user can follow the step-by-step ductwork leakage testing process and select from multiple choice configuration options. The touch screen also allows the user to quickly toggle between measurement unit outputs like Fahrenheit and Celsius temperature units to m3/s, CFM, l/s, or m3/h airflow units.
Features & Benefits
Easy transport to the job with a small footprint and pneumatic tires allow for smooth movement
Step-by-step test configuration and automated leakage testing based on the SMACNA Test Manual Capable of both positive and negative duct leakage testings
Meets and/or exceeds the following standards for testing:
SMACNA HVAC
BS EN 12237:2003 EU
BS EN 1507:2006 EU
DW/143 EU
Eurovent 2/2 EU
GB50243 GB
Our Duct Air Leakage Tester (DALT 6900), delivers the most accurate test results in either POSITIVE or NEGATIVE setting while delivering ±10 inches of water gauge pressure in the duct.
Accurate to ±2.5% of READING of volume flow
Stores data that can be downloaded easily to a USB flash drive for report generation from the commissioning engineer to the building owner or signing authority
Engineered with the end-user's perspective ensuring that it does what you need it to do and comes standard with a calibration* certificate.
The instrument is designed for easy transport to the job with a small footprint and fits thru roof hatches 21"x 20"
Order it with the optional Heavy Duty Construction Cover
*Kanomax offers annual NIST TRACEABLE calibrations at our facility in Andover, NJ.
Main Specifications
| Model | DALT 6900 | |
| Airflow | Ranges | Flow Grid: 2 to 377 CFM (4 to 640 m3/h) Nozzle: 2 to 21 CFM (4 to 36 m3/h) |
| Accuracy | 2.5 % of READING ± 0.1 m3/h | |
| Resolution | 0.01 m3/h | |
| Pressure | Ranges | ± 10 in.wg (± 2500 Pa) Duct Static Pressure |
| Accuracy | 1% of READING ± 1 Pa | |
| Resolution | 0.1 Pa | |
| Temperature | Ranges | 32 to 140 °F (0 to 60 °C) |
| Accuracy | ± 0.5 °C | |
| Resolution | 0.1 °C | |
| Absolute Pressure | Ranges | 20.6 to 38.3 in.Hg (70 to 130kPa) |
| Accuracy | 2% of READING | |
| Resolution | 0.1kPa | |
Power Source (NOTE: DALT 6900 does not operate with temporary power from an insufficient power supply.) | DALT 6900-0E | 110-120V, 1 Phase, 50/60Hz, 16A |
| DALT 6900-1E | 220-240V, 1 Phase, 50/60Hz, 10A | |
| Weight | Approx. 75kg (165lbs) | |
| Dimensions | W21 x D20 x H47 inches (54 x 50 x 120 mm) | |
| Data logging | Up to 1000 measurements | |
General Specifications
| Interface | Ranges |
| Warranty | 2 years (except flex duct) |
| What’s Included | Main unit, 2x Test Fixtures, 12 feet of Flexible Duct, Silicone Pressure Tube, Power Cord, Operation Manual, Calibration Certificate |
Surface Area Coverage
| Testing surface area (at 4 in. w.g.) | Up to 10500 sq. ft. |
