» Bidirectional flow (high- and low-flow ranges), volume, vacuum, pressure, and oxygen-concentration measurements
» 16 ventilator parameter measurements
» Trending and statistical analysis of all measured values
» Onboard graphical display
» Portable and compact
» RS232 for computer control
» Memory for storing results
» VT for Windows PC software
» Optional sensor assembly for temperature and humidity measurements
 

» VT MOBILE
 

» Operator's manual
 

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Technical Specifications
Display	64 x 128 pixels, reflective LCD, blue on yellow
Operational Modes	Standalone without any PC software or with the VT for Windows PC software.
Gas Types	Air, N2, N2O, CO2, O2, N2O bal O2, N2 bal O2
Battery Power Supply	Maximum Over-Voltage: 15 V dc Input Voltage Range: 9 V dc Power Consumption: < 70 mA Battery Life: > 7 hours
External Power Supply	Maximum Over-Voltage: 264 V ac Input Voltage Range: 100 to 240 V ac Input Frequency Range: 50/60 Hz Output Voltage: 12 V to 15 V Output Current: 1.2 A Fuse Rating: N/A
Low-Pressure Port	Maximum Applied Pressure: 5 psi Operating Pressure (Differential): - 20 cmH2O to 120 cmH2O Operating Pressure (Common-Mode): N/A Span Accuracy: + 2 % of reading or 1.5 mmHg Frequency Response: > 10 Hz Resolution: 0.1 mmHg Sample Rate: 100 Hz Fittings: Flow connector with 2 tubes "T" connected to a single Luer fitting Note: No fluid may be applied to port
High-Pressure Port	Maximum Applied Pressure: 125 psi Operating Pressure: - 2 psi to 100 psi Span Accuracy: + 2 % of reading or + 0.2 psig Frequency Response: > 10 Hz Resolution: 0.1 psi Sample Rate: 100 Hz Fittings: Single port, Luer lock, stainless steel Note: No fluid may be applied to port
Airway Pressure	Maximum Applied Pressure: 5 psi Operating Pressure: - 20 cmH2O to 120 cmH2O Span Accuracy: + 2 % of reading or + 0.5 cmH2O Frequency Response: > 25 Hz Resolution: 0.1 cmH2O Sample Rate: 100 Hz Fittings: Internally connected to flow-sensor pressure lines
High-Flow Port	Maximum Flow Rate (absolute value): 200 lpm Operating Flow Range: +/- 200 lpm Accuracy: +/- 3 % of reading or +/- 2 % of range Floor for Absolute Accuracy: 25 lpm Resolution: 0.01 lpm Frequency Response: > 25 Hz or t10-90 < 40 ms Sample Rate: 100 Hz Dynamic Resistance: < 2 cmH2O @ 60 lpm Low-Flow Dropout: 2.5 lpm Breath-Detect Threshold: 4 lpm Volume Range: > +/- 60 l Tidal Volume Accuracy: +/- 3 % of reading or +/- 20 ml, whichever is greater Fittings: 15 mm OD/ID, 1:40 conical male
Low-Flow Port	Maximum Flow Rate (absolute value): 35 lpm Operating Flow Range: + 25 lpm Accuracy: + 3 % of reading or + 1% of range Floor for Absolute Accuracy: 3 lpm Resolution: 0.01 lpm flow > 1 lpm Frequency Response: > 25 Hz or t10-90 < 40 ms Sample Rate: 100 Hz Dynamic Resistance: < 2.5 cmH2O @ 5 lpm Low-Flow Dropout: 0.24 lpm Breath-Detect Threshold: 1 lpm Volume Range: >+/- 60 l Volume Accuracy: + 3 % of reading or + 2 ml Fittings: 15 mm OD/ID, 1:40 conical male
Oxygen Measurement	Range: 0 to 100 % Accuracy: + 2 % full-scale output Resolution: 0.1 % O2 Frequency Response: > 15 s (t10-90) Sample Rate: 100 Hz Calibration: Galvanic fuel cell Notes: Automatic partial pressure compensation for barometric and airway pressure changes   Recommended interval for changing oxygen sensor is one year. However, sensor may last longer. During user calibration of the sensor, the VT MOBILE can detect if the sensor needs to be replaced.
Barometric Pressure Measurement	Range: 8 to 18 psia (400 mmHg to 900 mmHg) Accuracy: + 2 % of reading Resolution: 0.1 mmHg Frequency Response: < 5 s (t10-90) Sample Rate: N/A Calibration: Not required; however, device allows user calibration of offset
Inspiratory and Expiratory Tidal Volume	Resolution: 0.1 ml Range: > 10 l Accuracy: ± 3 % expiratory minute volume Resolution: 0.001 lpm Range: 0 to 60 l Accuracy: ± 3 %
Breath Rate	Resolution: 0.1 BPM Range: 2 BPM to 150 BPM Accuracy: ± 1 % inspiratory-to-expiratory time ratio (I:E ratio) Resolution: 0.01 Range: 0.25 to 9.99 Accuracy: ± 2 % or 0.1 s
Peak Inspiratory Pressure	Resolution: 0.1 cmH2O Range: ± 120 cmH2O Accuracy: + 3 % or 1 cmH2O
Inspiratory Pause Pressure	Resolution: 0.1 cmH2O Range: ± 120 cmH2O Accuracy: + 3 % or 1 cmH2O
Mean Airway Pressure	Resolution: 0.1 cmH2O Range: + 80 cmH2O Accuracy: + 3 % or 0.5 cmH2O
Positive-End Expiratory Pressure (PEEP)	Resolution: 0.1 cmH2O Range: - 5 to 40 cmH2O Accuracy: + 3 % or 0.5 cmH2O
Peak Expiratory Flow	Resolution: 0.01 lpm Range: 0 lpm to 150 lpm Accuracy: ± 3 % or 2 % of range
Peak Inspiratory Flow	Resolution: 0.01 lpm Range: 0 lpm to 150 lpm Accuracy: ± 3 % or 2 % of range
Temperature	Resolution: 0.1 ˚C Range: 0 ˚C to 50 ˚C Accuracy: ± 1 ˚C Units: ˚C, ˚F, ˚K
Humidity	Resolution: 0.1% Range: 0 % to 100% Accuracy: ± 5 %
RS232 Serial Communications	4-pin modular connector located on upper-left side of panel RS-232 compatible with the VT Plus for Windows software application (version 2.01.00 or higher.)
Environmental Specifications	Operating Temperature: 50 to 104 ˚F (10 to 40 ˚C) Storage Temperature: -13 to 122 ˚F (-25 to 50 ˚C) Operating Humidity: 0 to 80 % non-condensing at temperatures to 31 ˚C, decreasing linearly to 50 % relative humidity at 104 ˚F (40 ˚C) Storage Humidity: 0 % to 95 % non-condensing Operating Barometric: 7 psia to 18 psia Storage Barometric: -1000 to 10000 ft (787.9 mmHg to 522.7 mmHg)
Dimensions (WxDxH)	10 cm x 20 cm x 3.8 cm (4 in x 8 in x 1.5 in)
Weight	0.45 kg (1 lb)