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Introduction
The VT650/VT900 Gas Flow Analyzer (the
Analyzer or Product), is a general purpose gas
flow analyzer with special features for testing
mechanical patient ventilators. The Analyzer
measures bi-directional air flow, high and
differential low pressure, barometric pressure,
Oxygen concentration and airway pressure,
airway temperature and airway humidity. The
VT900 also measures ultra-low flow (±750 ml/
min) and ultra-low pressure (0 mbar to 10 mbar).
The Analyzer can be controlled externally using
USB commands or automated with available
software. The Analyzer operates on a
rechargeable Li-Ion battery or external power
supply for stationary or portable use. All figures
show the VT900 unless otherwise noted.
Key Features
• Full range, bi-directional air flow and volume
channel
• Ultra-low flow and pressure ranges (VT900)
• High pressure, vacuum and differential low
pressure
• Airway pressure, Oxygen concentration,
temperature, and humidity
• Barometric pressure
• External trigger input (VT900)
• Rechargeable Li-ion battery with up to
8 hours battery life
•USB port
• Customizable profiles that can be saved
• Numerical and graphical screens with real
time data
• Automation software available
• On-board memory
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