‘READ’ button within the 30 second signal development
time to continue reading the alcohol level on the digital
display.
It is important that the ‘SET’ button is not touched
during the reading development time. This would
flush the alcohol from the cell and partly discharge its
voltage and reduce the alcohol level.
7) DISCARD MOUTHPIECE
Having completed the test and observed the alcohol
reading, you should now remove and discard the
mouthpiece. Never use the same mouthpiece for
subsequent tests, on either the same or different subjects.
8) RESET AND WAIT
The instrument must now be RESET so it will be ready for
another test. This RESET is done by depressing the ‘SET’
button until it locks. This flushes out the fuel cell and short-
circuits its electrodes, allowing its voltage to return more
quickly to zero.
If the display shows .003 or higher as a result of the test, it
may take several minutes before a satisfactory READY
CHECK can be obtained before re-use of the S-D2.
13
INTOXILYZER
®
S-D2 Operator’s Manual
0
30
20
The fuel cell will
take 20-30 seconds
to reach its
maximum voltage
and produce a final
reading.