Fluke VT Plus HF, Operator'S Manual

Page: 32 / 134

VT Plus HF
Operators Manual
3-4
monitor/6 Key
This key is used to select the “monitor” mode.
The monitor mode is used to display the signal
and instantaneous value for three of the signals
measured by the
VT PLUS HF . Alternatively, the
lower of the three plots may be replaced by
selected breath parameters. The user can select
the signals and/or parameters that are displayed.
This key is also the “6” key for numeric data
entry.
zero/7 Key
This key initiates the “zero” function in the VT
PLUS HF . All of the pressure and differential
pressure (flow) sensors in the VT PLUS HF need
to be periodically “zeroed” or calibrated to a zero
reference. When “zero” is selected, the device
measures the zero value of the selected signal for
flow measuring. The
VT PLUS HF can be set to
periodically call the “zero” function. (Refer to
Chapter 4, System Setup for Zero Mode
Descriptions). This key is also the “7” key for
numeric data entry.
setup/8 Key
This key is used to access the VT PLUS HF
configuration and setup screens. When this key is
pressed, a menu is displayed. The soft keys are
used to navigate the menu. From this menu, other
sub-menus are accessible to adjust the various
configuration settings. The details of this menu
and its sub-menus will be described later. This
key is also the “8” key for numeric data entry.
parameters/9 Key
This key is used to select which of the breath
parameters are displayed in the various modes.
Each mode screen has space to display 4 of the
breath parameters. Using the “parameters”
function, the four breath parameters can be
selected. Note that if 4 parameters are already
selected, then no more can be selected until one
of the previously selected parameters is cleared.
Also note that the parameters that are selected
only apply to the screen that the VT PLUS HF
was in when the “parameters” key was pressed.
This key is also the “9” key for numeric data
entry.