Fluke Biomedical VT Plus HF - Manual (Page 115)

Remote Operation
Other Setup Functions
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Other Setup Functions
VT for Windows allows selection of settings in the Setup menu.
Breath Detect
The Analyzer has a built-in breath detection algorithm. The algorithm determines the
breath phase (inspiration, expiration, inspiratory pause, single phase bi-directional) This
algorithm is designed to reject signal noise and other artifact when determining the
phases of a breath.
To change the breath detect mode:
1. From the
Setup menu, select Breath Detect .
2. Click the preferred option.
Breath Detect Threshold
The Analyzer breath detection algorithm uses a flow rate threshold that the flow must
cross to trigger a change in the breath phase. Higher flow rate thresholds yield less
sensitive breath detection. Lower thresholds yield more sensitive breath detection.
To enter a new breath detect threshold:
1. From the
Setup menu, select Breath Detect ; then select Threshold . The
following dialog box displays:
fec115.bmp
2. Enter a new value and click OK .
Gas Settings
Through the Gas Settings option, the Analyzer can compensate for the effects of gas
temperature, viscosity, molecular weight, and relative humidity, on flow measurement, as
well as correct flow calculations to one of several standard conditions. For more
information on the gas settings, refer to System Setup.
To change the gas settings:
1. From the
Setup menu, select GAS SETTINGS . The following dialog box appears,
allowing changes to be made: