Fluke Biomedical VT Mobile Getting Started - Manual (Page 22)

VT MOBILE
Getting Started Manual
12
Setting the Breath Detect Threshold
The default setting of 2.00 lpm is usually appropriate for
the ventilators and anesthesia machines being tested.
This setting tells the Analyzer how to divide the delivered
flow into breaths. If necessary, adjust the Breath Detect
Threshold up or down until the breath rate reported on the
Analyzer Timing display matches the ventilator breath
rate.
Set the threshold by pressing
D
Æ E Æ C (to ‘BD
Thresh’) Æ E Æ C or B (to change threshold
in increments of 0.25) Æ E. You can also use keypad
entry to directly enter a new value prior to the last
E press.
Setting Zero Warn ON or OFF
The Analyzer Zero Warn is set to ON at the factory to
remind you to zero out any offset in the Flow
measurements. The Zero Warn screen reminds you at
power on, after the first five minutes, and then after each
30-minute period. After the power-on zero warning, you
can choose to Zero or Cancel when the reminder
appears; either action returns the Analyzer to the same
function.
WWarning
Setting Zero Warn to OFF may introduce
offset into the Flow and Volume
measurements and cause errors in the
assessment of those measurements against
the medical device under test specification.
Fluke Biomedical strongly recommends that
you leave Zero Warn ON.
Turn this warning on or off by pressing
D
Æ E Æ
C (to ‘Zero Warn’ Æ E Æ C (to select ON or
OFF) Æ E.