Fluke Biomedical VT Plus HF - Manual (Page 31)

Connection and Setup
Connecting the Analyzer
2
2-3
Connecting the Analyzer
The Analyzer can be connected to a ventilator and a test load in either a bidirectional or
unidirectional flow configuration.
Pneumatic Connections
The following is a description of various pneumatic connections on the Analyzer.
High Flow (Inlet and Exhaust)
The outer diameter of the high flow ports is a standard 22 mm fitting to allow connection
using patient hoses. The inner diameter of the high flow ports is designed to accept a 15
mm male respiratory fitting such as endotracheal tubes, gas sampling adapters, etc.
W Caution
To avoid damage to the Analyzer or adverse affects on its
performance, follow these guidelines:
•
Pressure inside the high flow port should not exceed ±120
cmH
2
O.
•
Measure only dry gases with the high flow port. Do not use
this port to measure exhaled or artificially humidified
gases.
Low Flow (Inlet and Exhaust)
The outer diameter of the low-flow ports is a standard 15 mm to allow connection with
standard respiratory fittings such as gas sampling Y-pieces and gas sampling adapters.
The inner lumen of the low-flow ports are threaded to accept a standard ¼ in NPT fitting.
W Caution
To avoid damage to the Analyzer or adverse affects on its
performance, follow these guidelines:
•
Pressure inside the low flow port should not exceed ±120
cmH
2
O.
•
Measure only dry gases with the low flow port. Do not use
this port to measure exhaled or artificially humidified
gases.
High Pressure (+ and -)
The high-pressure ports are primarily designed for testing wall and tank pressurized gas
sources. The connector mates to standard oxygen DISS fittings as used on oxygen supply
hoses. Note that only the + side can be used to measure fluid pressure.
W Caution
To avoid damage to the Analyzer or adverse affects on its
performance, follow these guidelines:
•
Applied differential pressure to either side of the high-
pressure port should not exceed 100 psi.
•
The negative (-) side of the high-pressure port cannot be
used to measure fluid pressure.