bedfront piCO+ Smokerlyzer, Руководство по эксплуатации

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17
piCO
+
Operating Manual
English
shows a again, the unit will have
to be reset or restored using the reset
button located in the battery bay followed
by the reset calibration procedure on
page 13. If the problem persists, please
return the unit to Bedfont or your local
distributor for investigation and repair. In
this case, the display shows a telephone
and envelope symbol. The unit can be
turned off by pressing the button for
three seconds. It is possible to re-start
the unit and use it with the previous
calibration settings, or to attempt the
complete calibration process again.
Troubleshooting
● If the unit fails to turn on properly, or if
either low battery symbols or
are shown, replace both AA batteries.
Ensure that the batteries are inserted
the correct way around, matching the
symbols moulded into the plastic.
● If a breath test on a non-smoker gives
an indication of CO being present, it
may indicate a high ambient level of
CO (possibly due to a faulty combustion
appliance or exhaust fumes), or
the effects of passive smoking. A
false reading can, under certain
circumstances, be caused by alcohol
on a person’s breath, or the presence of
hydrogen, which can be generated in the
human digestive system.
● If, after an attempted calibration with
20ppm CO gas, the display shows a
, the gas value was not within the
permitted limits. The achieved reading
is displayed underneath the . If the
value is much lower than 20ppm, there
may have been a problem with the
supply of gas from the cylinder during
the calibration process. If the displayed
value is much higher than 20ppm, it is
possible that the wrong concentration of
calibration gas is being used. In either
case, check the cylinder, connections
and flow rate before double clicking the
button to repeat the calibration process.
If, after a third repeated attempt to
calibrate the instrument, the display