Fluke Biomedical VT Plus HF - Manual (Page 38)

VT Plus HF
Operators Manual
2-10
3. Input the desired value from the keypad.
4. Press the
ENTER soft key to save the change or the ESCAPE soft key to cancel the
change.
5. Press the BACK soft key to return to the Settings menu.
Note
Use only dry gases with the Analyzer. Do not use with heated humidified gases; using
humidified gases at room temperature may cause flow measurement errors of up to 1 %
of reading for near-saturated, non-condensing gases.
Correction Mode
This setting calculates the flow volume of the air flowing through the high- or low-flow
ports. This value should match the correction mode of the device under test (DUT).
To change correction mode:
1. From the
Gas Settings menu, highlight Correction Mode .
2. Press the MODIFY soft key to toggle to the desired value.
3. Press the ENTER soft key to save the change or the ESCAPE soft key to cancel the
change.
4. Press the BACK soft key to return to the Settings menu.
Barometric Pressure
The Analyzer constantly measures the barometric pressure and displays it on the Full
Test screen. This setting allows the user to fine-tune the barometric pressure
measurement. The difference between the value measured by the Analyzer and the
entered value is applied to future Analyzer measurements as a offset correction factor.
The correction factor is stored in nonvolatile memory and is remembered when the
Analyzer is turned off and on.
Setting Barometric Pressure Units
These settings represent the various units available to measure barometric pressure such
as mmHg.
To change the barometric pressure units:
1. From the
Gas Settings menu, highlight Baro Press Units .
2. Press the MODIFY soft key to toggle to the desired value.
3. Press the ENTER soft key to save the change or the ESCAPE soft key to cancel the
change.
4. Press the BACK soft key to return to the Settings menu.
Entering a Barometric Pressure Value
To enter a barometric pressure value:
1. From the
Gas Settings menu, highlight Barometric Press .
2. Press the MODIFY soft key to display the value field.
3. Input the desired value from the keypad.