Test Setup; Bi-Directional Flow Mode - Fluke VT650 User Manual

Test Setup

Use the airway port for ventilator testing. Use a
test lung to set up a test that measures ventilator
parameters in bi-directional or uni-directional
modes. Fluke Biomedical recommends the bi-
directional mode.
Test Lung
Exhaust
VT900 GAS FLOW ANALYZER
FLOW
EXHAUST
750 ml /min 0 TO 10 mbar
ULTRA ULTRA
LOW FLOW LOW PRESSURE
Figure 5. Bi-Direction Flow Mode Connections

Bi-directional Flow Mode

For bi-directional flow connections, see Figure 5.
1. Use a Y-piece adapter to connect the
ventilator to the flow inlet on the Analyzer.
2. Use a standard breathing hose to connect to
the exhaust port on the Analyzer.
The Analyzer shows the flow of gas
delivered by the ventilator.
Inlet
FLOW
INLET
± 300 lpm
0.8 TO 10 bar 160 mbar
HIGH LOW
PRESSURE PRESSURE
Gas Flow Analyzer
Inspiratory Hose
Expiratory Hose
Test Setup
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