Tafonius
Junior
– A User Guide
bottom of its travel, a zero reading is taken and
ZEROING PISTON POSITON
is displayed
briefly, a beep is heard.
The control screen below is displayed but the piston is left at the very bottom and the
warning “CYLINDER EMPTY / OUT OF RESERVE” flashes in area 1 (see below) waiting for
the user to pre-fill the system with oxygen and anaesthetic before induction.
Junior
is ready for use.
The Control Screen
The Control screen is divided into 4 main regions:
1) Status and message information
Area 1 shows status information on the system batteries, left. Displayed is the actual
voltages of the two batteries used in
Junior
and whether or not they are being charged.
The centre area indicates whether the machine is running on MAINS or BATTery power.
The software version is displayed in the upper right and the vacuum level around the piston
with the duration in seconds since the last vacuum cycle below that. When there are no
warning or error messages, the name
junior
is displayed in this area as seen above. The
display of warning and error messages will replace the machine name when they occur.
2) Piston Graphic and Settings Information
Area 2 shows a representation of the piston. The dark area represents the volume of gas
under the piston and the numerical value at the top of the list to the right displays the
amount in litres (L). The piston position and volume are constantly updated showing the
position of the piston at all times. Two asterisks (* *) will appear at the top of the piston area
whenever the Dump Valve, the electric pop-off valve, is open.
Below the volume display are four settings that are not otherwise always display on the
screen.
BV
The
B
uffer
V
olume is displayed in litres. What the Buffer Volume is and how it is
used is described below in the section
“ Dictating the size of the “Virtual Bag”
MWPL
The
M
aximum
W
orking
P
ressure
L
imit, in cmH
2
O, is generally seen above the right
most control knob used to set its value however it will not be displayed there when
Printed: 26/Oct/18
Page 10 of 20
DOCA4962B
4
2
3
1) Status And Message Information
2) Piston Graphic And Settings Information
3) Resultant Ventilation Values
4) Ventilator Settings & Measured Values
1
