Fluke VT Plus HF, Operator'S Manual

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VT Plus HF
Operators Manual
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TITLE BAR:
Each screen includes a title bar that shows the screen or mode name on the
left. A number indicating the screen number is shown in a small box on the right of the
title bar.
Indicates the screen number.
ICONS: The breath-detection icon is located on the right side of the title bar and
indicates whether breath detection is selected as follows:
A large number “0” to the right of the title bar indicates that automatic sensor-
zeroing mode has been selected.
Bi-directional breath detection: Use this breath-detection mode when analyzing
both inspired and expired breath data or when the VT PLUS HF is connected
between the load (lung simulator) and the Y-piece in the breathing circuit.
Uni-directional expired only: Use this breath-detection mode when the VT PLUS
HF is analyzing only expired breaths or when the VT PLUS HF is connected in
the expired limb of the ventilator breathing circuit.
Uni-directional inspired only: Use this breath-detection mode when the VT PLUS
HF is analyzing only inspired breaths or when the VT PLUS HF is connected in
the inspired limb of the ventilator breathing circuit.
ATP : This indicates the conversion of gas flow and volume to ambient
temperature and pressure.
BTPS:
This indicates the conversion of gas flow and volume to body temperature
of 37 °C with 100% relative humidity.
STPD
0
, : This indicates the conversion of gas flow and volume to a standard
temperature of 0 °C and a standard barometric pressure of 760 mmHg.
STPD
21
: This indicates the conversion of gas flow and volume to a standard
temperature of 21 °C and a standard barometric pressure of 760 mmHg.
Inspiratory Tidal Volumes: This indicates that the reported tidal volumes are
measured over the inspiratory phase of the breath. This only applies to the bi-
directional breath-detect mode.
Expiratory Tidal Volumes : This indicates that the reported tidal volumes are
measured over the expiratory phase of the breath. This only applies to the bi-
directional breath-detect mode.
Light (Soft) Filtering : This indicates that the filtering option is turned on and the
filter is set to "light" or "soft" filtering. In this mode, all of the signals (flow and
pressure) have a Digital Signal Processing (DSP) low-pass filter applied. This is
used when measuring very "noisy" signals. None of the ventilator parameters are
valid when the filtering is turned on.
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