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INTOXILYZER
®
S-D2 Operator’s Manual
TEST FUEL CELL SWITCH
When an alcohol sample has been taken, the reading
is cleared from the display and fuel cell recovery is
accelerated by depressing the ‘SET’ button. This
short circuits the fuel cell electrodes and accelerates its
discharge; immediate discharge is not generally
possible since alcohol will still be present on the
electrode surface.
To test and insure that this circuiting switch is working
properly, the following procedure should be done:
a) Take a sample of dry gas standard into
the S-D2.
b) Hold down the ‘READ’ button and
observe the display as it starts to
increase to the standard value. While
still holding down the ‘READ’ button,
press the ‘SET’ button fully down—you
will be holding both buttons down
at the same time. This should cause the
display to reset to .000.
c) Allow the instrument to clear before using
for further breath tests.
If the fuel cell reset switch test fails, the instrument
should be returned to an authorized agent for
inspection and repair.
FUEL CELL REPLACEMENT
When the fuel cell has reached the end of its working
life, as seen by the inability to calibrate the instrument
(see previous section), the complete instrument should
be returned to the manufacturer for a replacement fuel
cell to be fitted.
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