Fluke Biomedical VT Mobile - Manual (Page 57)

Measuring Flow and Volume
Measuring Low Flow
6
6-3
Measuring Low Flow
Measure low flow in the range: +/- 25 lpm. Never exceed an absolute maximum of 35
lpm. Refer to Figure 6-1 while following these steps:
1. At the Analyzer, connect the Low-Flow Sensor to the Flow/Low-Pressure Port.
2. Press R and follow on-screen instructions.
3. Press K (in OTHER MEASUREMENTS) or N (in WAVEFORM SCREENS.)
4. Connect the Low-Flow Sensor to the source.
5. Apply flow.
6. Successively press G (Units) to select a flow unit in the sequence: LPM Æ CFM
Æ LPS Æ ml/min Æ ml/sec.
If the waveform is too small or too large, press F (Rescale) to view the waveform
within optimized limits.
F1
F2
Back
ENTER
Setup
Me mo ry Me mo ry
VENTILA
TOR P
ARAM
ETERS
FLO W/V OL
FLO W/V OL
TR END
TEST
ZER O
SENSO
RS
MOR E
PRESSURE
PRESSURE
PRESSURE
TIM ING
VO LUM
E
FLO W
W AVEFORM SCREENS
OTHER M
EASUREM
ENTS
SPECIAL FUNCTIONS
%RH
O 2
_ , @ _ , @
11
22
ABC ABC
55
JKL JKL 44
GHI GHI
66
MNO MNO
88
00
TUV TUV 77
PQRS PQRS
99
WXYZ WXYZ
33
DEF DEF
GAS FLOW ANALYZER GAS FLOW ANALYZER
VT M
OBILE
VT M
OBILE
Low Flow
Sensor
edg13f.eps
Figure 6-1. Measuring Low Flow
Figure 6-2 shows some characteristic low-flow screens.