Fluke VT650 - Flow Specifications; Airway Flow and Ultra-Low Flow Specs

Gas Flow Analyzer
Specifications
41
Flow
Airway Flow
Resolution...........................0.01<100 slpm and 
0.1 >100 slpm
Accuracy .............................see Table 9
Frequency Response..........10 % to 90 % rise time <10 ms
Sample Rate
200 Hz
Dynamic Resistance ..........<2.00 cmH2O @ 60 slpm
Ultra-Low-Flow (VT900)
Range .................................±750 ml/min
Accuracy .............................±1.7 % of rdg or 0.01 slpm
Resolution...........................0.001 lpm
Flow Temperature
Coefficient ...............................Add 0.2 % of reading per °C
between 10 °C and 18 °C
Add 0.2 % of reading per °C
between 28 °C and 40 °C
Table 9. Airway Flow Range and Accuracy
Gas Range Specification
Main Airway Flow
Air, Nitrogen (N2),
Oxygen (O2)
±300 slpm
1.7 % of rdg or
0.04 slpm
Argon, Heliox,
O2 bal He, O2 bal N2
±300 slpm
3.0 % of rdg or
0.08 slpm, typical
Carbon Dioxide (CO2),
Nitrous Oxide (N2O),
O2 bal N20,
±150 slpm
3.0 % of rdg or
0.08 slpm, typical
Ultra-low Flow (VT900)
Air, Nitrogen (N2),
Oxygen (O2)
±0.750 slpm
1.7 % of rdg or
0.01 slpm
Argon ±0.750 slpm
3.0 % of rdg or
0.02 slpm, typical
Nitrous Oxide (N2O) ±0.400 slpm
3.0 % of rdg or
0.02 slpm, typical
Note: Ultra-low flow that is over range can be detected
as unstable. If this occurs, reduce flow.
Table 9. Airway Flow Range and Accuracy (cont.)
Gas Range Specification