Duct Air Leakage Tester – Model 6900

The fastest and most convenient duct air leakage tester in the industry

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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 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 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.

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  • 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
ModelDALT 6900
AirflowRangesFlow Grid: 2 to 377 CFM (4 to 640 m3/h)
Nozzle: 2 to 21 CFM (4 to 36 m3/h)
Accuracy2.5 % of READING ± 0.1 m3/h
Resolution0.01 m3/h
PressureRanges± 10 in.wg (± 2500 Pa) Duct Static Pressure
Accuracy1% of READING ± 1 Pa
Resolution0.1 Pa
TemperatureRanges32 to 140 °F (0 to 60 °C)
Accuracy± 0.5 °C
Resolution0.1 °C
Absolute PressureRanges20.6 to 38.3 in.Hg (70 to 130kPa)
Accuracy2% of READING
Resolution0.1kPa
Power Source
(NOTE: DALT 6900 does not operate with temporary power
from an insufficient power supply.)
DALT 6900-0E110-120V, 1 Phase, 50/60Hz, 16A
DALT 6900-1E220-240V, 1 Phase, 50/60Hz, 10A
WeightApprox. 75kg (165lbs)
DimensionsW21 x D20 x H47 inches (54 x 50 x 120 mm)
Data loggingUp to 1000 measurements

General Specifications
InterfaceRanges
Warranty2 years (except flex duct)
What’s IncludedMain 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.

User Manual

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Data Sheet

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Quick Start Guide

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PQ Curve

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  • Heavy Duty Construction Cover
  • Static Pressure Probe: Model 6700-08

Introducing the DALT Model 6900

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Getting Started with the DALT 6900

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Introducing the DALT Model 6900

The Kanomax Duct Air Leakage Tester – Model 6900 is the most advanced leakage tester for commercial duct systems.

See how easy the Kanomax DALT 6900 is to use out in the field by viewing our product overview video.

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Getting Started with the DALT 6900

Learn about what’s included with the Duct Air Leakage Tester – Model 6900, its main features and modes, and how to run a leakage test easier than ever before.

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