7
Duct Air Leakage Tester Operation Manual Ver.3
1.2. Main Specifications
Model
DALT 6900
Air Flow
Ranges
Flow Grid: 21 to 377 CFM (36 to 640 m3/h)
Nozzle: 2 to 21 CFM (4 to 36 m3/h)
Accuracy
2.5 % of Reading ± 0.06 CFM(0.1 m3/h)
Resolution
0.01 CFM (0.01 m3/h)
Pressure
Ranges
± 10 in.wg (± 2500 Pa)
Accuracy
1% of Reading ± 0.004 in.wg(1 Pa)
Resolution
0.001 in.wg (0.1 Pa)
Temperature
Ranges
32 to 140 °F (0 to 60 °C
)
Accuracy
±1 °F (0.5 °C)
Resolution
0.1 °F (0.1 °C)
Absolute Pressure
Ranges
20.6 to 38.3 in.Hg (70 to 130kPa)
Accuracy
2% of Reading
Resolution
0.1 in.Hg (0.1 kPa)
Power Source
（
DALT 6900 does not operate with temporary
power from an insufficient power supply.)
DALT 6900-0E
100-120V, 1 Phase, 50/60Hz,16A
DALT 6900-1E
200-240V, 1 Phase, 50/60Hz,10A
Dimensions
Main unit
420
（
Foot print
）
Sq.in.x 47 (Height) inches
21 (Wide) x 20 (Depth
）
x 47 (Height) inches
Hose
4 inch diameter, 4 meter (13 foot) length
Weight
Approx.75kg
Data logging
Up to 1000 measurements
