13
piCO
+
Operating Manual
English
●
The calibration gas required
is Bedfont 20ppm carbon
monoxide in air.
●
Ensure that the fine control
valve is in the off position.
●
Screw the fine control valve
and flow indicator assembly
to the gas can. This is best done by
screwing the gas can into the valve.
● Double click to select the cylinder symbol.
● Immediately open the fine control valve
and allow the gas to flow at 1 litre per
minute.
● To maintain this, adjust the flow so the
ball in the flow indicator remains at the
middle line.
● Allow the gas to flow through the
instrument for up to 1.5 minutes to ensure
accurate calibration, again monitoring the
rate of flow.
● As the 20ppm CO calibration
gas is applied, the displayed
ppm reading will climb.
After 1.5 minutes, or until
no further increase in the
reading is obtained, the
final measured value will be shown and
sampling will cease.
● If the displayed reading is between 5
and 40ppm, the calibration value will be
automatically set in the instrument as
20ppm and a tick
will be displayed
to show a successful calibration. If the
Calibration
(Manual)
displayed reading is outside these
limits, the calibration fails, and a
will be displayed (see ‘Troubleshooting’,
page 17, if this happens).
● The pointer and ‘return’ symbols
re-appear at the bottom of the display
to indicate that the process is complete
and to allow the user to double click the
button to return to the previous menu.
● Turn off the gas flow, remove the
D-piece sampling system, and
disconnect the calibration adapter from
the D-piece sampling system.
● Unscrew the fine control valve and flow
indicator from the gas can and store
safely. If the valve is left attached to the
can, the gas could escape.
● The piCO
+
is now calibrated and ready
for use.
●
The piCO
+
will prompt the user to
calibrate the unit again in six months.
●
Turn the instrument on in the
normal way. When the main
menu appears, scroll down
to the symbol of the gas
cylinder by single clicking
the button. Double click to
select the cylinder symbol.
Summary of Contents for piCO+ Smokerlyzer
Page 1: ...Operating manual piCO TM Smokerlyzer breath analysis is the new blood test ...
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Page 22: ...Notes ...
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