CMi Intoxilyzer S-D2 Operator's Manual
S-D2
OPERATOR’S MANUAL
650132 Lev A
Operator’s
316 E. 9th St.
Owensboro, KY 42303
866-835-0690
Fax: 270 -685-6268
www.alcoholtest.com
S-D2
Manual
No part of this work covered by the copyrights hereon may
be reproduced or copied in any form or by any means—
graphical, electronic, mechanical, including photocopying, taping
or information storage and retrieval systems—without
© 2002 by CMI, Inc.
written permission of CMI, Inc.
INTOXILYZER® S-D2 Operator’s Manual
INTRODUCTION . . . . . . . . . . . . . . . . . . . 1
PRINCIPLES OF OPERA TION . . . . . . . . . 2
• Instrument Features . . . . . . . . . . . . . 3
Mouthpiece
Sampling Port
“SET” Button
“READ” Button
Alcohol Level Display
Calibration Control
Breath Sampling Lights
Battery
Leather Case
SUBJECT BREATH TEST . . . . . . . . . . . . 7
• Ambient T emperature . . . . . . . . . . . . 7
• Preliminary . . . . . . . . . . . . . . . . . . . . 8
• Detailed Procedure . . . . . . . . . . . . . . 8
Ready Check
SET
Attach Mouthpiece
Instruct the Subject
Take Sample
Observe Display
Discard Mouthpiece
Reset and Wait
CALIBRA TION REQUIREMENTS: USE OF
THE DRY GAS STANDARD . . . . . . . . . . 14
TABLE OF
CONTENTS
INTOXILYZER® S-D2 Operator’s Manual
• The Alcohol Standard . . . . . . . . . . . . 14
• The Gas Standard . . . . . . . . . . . . . . . 15
• Using a Dry Gas Standard
at High Altitude . . . . . . . . . . . . . . . . 15
• Altitude Correction Chart . . . . . . . . . . 16
• Use of a Wet-Bath Simulator . . . . . . . 17
CALIBRA TION CHECK PROCEDURE . . . 18
• Detailed Procedure . . . . . . . . . . . . . . 18
Ready Check
SET
Sample the Dry Gas Standard
Read the Display
Reset and Wait
CALIBRATION ADJUSTMENT . . . . . . . . . 21
• The Calibration Control . . . . . . . . . . . 21
• The Dry Gas Calibration Value . . . . . . 21
• Detailed Procedure . . . . . . . . . . . . . . 22
Preliminary
Ready Check
SET
Sample the Dry Gas Standard
Adjust the Display to the Value of the
Dry Gas Standard
Reset and Wait
ROUTINE FIELD SERVICE CHECKS . . . . 27
• Battery Check & Replacement . . . . . . 27
• Sampling System Check . . . . . . . . . 28
• Breath Sampling Light Check . . . . . . . 29
• Test Fuel Cell Switch . . . . . . . . . . . . 31
• Fuel Cell Replacement . . . . . . . . . . . 31
POINTS TO REMEMBER . . . . . . . . . . . . . 32
• Test Procedure . . . . . . . . . . . . . . . . . 32
• Mouthpiece . . . . . . . . . . . . . . . . . . . . 33
• Smoking . . . . . . . . . . . . . . . . . . . . . . 33
• Food and Drink . . . . . . . . . . . . . . . . . 33
• Storage Between Tests . . . . . . . . . . . 33
• Radio Transmitters . . . . . . . . . . . . . . 34
• Physical Shock . . . . . . . . . . . . . . . . 34
INTOXILYZER® S-D2 SPECIFICA TIONS . . 35
INTOXILYZER® S-D2 Operator’s Manual
workplace safety applications. The S-D2 is just
one of the range of instruments manufactured by
CMI, Inc. for these purposes.
The Intoxilyzer® S-D2 is accurate and reliable,
allowing a complete breath test procedure to be
conducted in about one minute.
INTRODUCTION
The Intoxilyzer® S-D2
represents a well established
concept in breath alcohol
testing analysis. It is used
worldwide in law enforcement, transportation and
This manual describes the operation,
maintenance, calibration check, and calibration
adjustment of the S-D2. This manual should be
read completely and fully understood by each
operator prior to testing a subject. It is further
recommended that operators practice the breath
testing process before giving an actual “in the
field” test.
The information contained in this manual concerning operational
procedures, protocols, accuracy verification schedules and
techniques is presented solely for the purpose of establishing a
general knowledge of the instrument and its operation. CMI
recognizes that many law enforcement customers have
agencies responsible for specifying instrument procedures,
protocols and techniques based upon their individual needs,
current laws and pre-existing administrative rules. Therefore, if
any such procedure, protocol, schedule or technique described
in this manual conflicts with the rules set forth by a recognized
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governing agency, CMI defers to those authorized entities.
INTOXILYZER® S-D2 Operator’s Manual
PRINCIPLES OF
OPERATION
The Intoxilyzer® S-D2
uses an electrochemical
fuel cell, containing two
platinum electrodes, to
detect and measure the
concentration of alcohol vapor in expired breath.
When breath is drawn into this fuel cell, by means
of the sampling system, a small voltage is
generated in proportion to its breath alcohol
concentration. This fuel cell is fed to an electronic
amplifier and displayed on a digital meter (liquid
crystal).
The S-D2 incorporates two breath sampling lights,
controlled by an interlinked pressure switch and
timer system. The sampling lights show the
operator if the subject is blowing correctly , and
when he has provided a suitable sample of breath
for analysis.
The instrument is simple to operate and may be
used as often as required, provided that a suitable
delay is allowed between successive tests. This
time delay allows the fuel cell to clear itself of
alcohol and prevents the possibility of additive
readings. If no alcohol is present in a test, a
second test may be analyzed immediately , since
the fuel cell voltage is already at zero. Unless the
breath alcohol level of the subject is very high,
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INTOXILYZER® S-D2 Operator’s Manual
the instrument will generally be clear enough to receive
and analyze the second sample in less than two minutes.
INSTRUMENT FEA TURES
1) Mouthpiece
This is attached to the sampling port. For
hygenic reasons, mouthpieces are supplied
separately packed and are disposable. A new
mouthpiece must be used for each breath test.
This minimizes health concerns and prevents
cross-sample alcohol contamination.
2) Sampling Port
This forms the entrance to the fuel cell detector.
When inserted into the small hole in the side of
the mouthpiece, it allows a small portion of
breath to be drawn into the instrument for
analysis.
3) ‘SET’ Button
This button forms part of the sampling system.
When fully depressed, the button locks to set
the instrument ready for sampling. When the
‘SET’ button rises, the sample to be analyzed
is drawn directly into the fuel cell detector.
4) ‘READ’ Button
This button has two functions:
1) to release the ‘SET’ button and take
the sample,
2) to switch on the amplifier and display
systems
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INTOXILYZER® S-D2 Operator’s Manual
2
1
4
3
5
7
8
INSTRUMENT
FEATURES
1 Mouthpiece
2 Sampling Port
3 ‘SET’ Button
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4 ‘READ’ Button
5 Alcohol Level Display
6 Calibration Control (on side)
7 Breath Sampling Lights
8 Battery (on bottom)
9 Leather Case
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INTOXILYZER® S-D2 Operator’s Manual
The ‘READ’ button is spring loaded.
Momentary depression will take the breath
sample. Constant pressure is required to
switch on the amplifier and display systems.
5) Alcohol Level Display
This three digit, liquid crystal display shows
the breath alcohol concentration of the subject.
The display has built-in illumination and is
activated by depressing the ‘READ’ button.
If the figure on the left shows ‘L ’ when the
‘READ’ button is depressed, the battery needs
to be replaced.
6) Calibration Control
This screw control, located on the right side of the
case, is used for periodic calibration adjustments
with either a dry gas standard or wet bath
simulator.
7) Breath Sampling Lights
Light ‘A’ illuminates to indicate that the subject
is blowing hard enough to obtain a proper breath
sample. Light ‘B’ illuminates when the subject
has blown long enough and indicates when the
‘READ’ button should be pressed. In other
words, light ‘B’ illuminates when the subject has
provided a suitable sample for breath analysis.
8) Battery
The battery is located directly behind the sliding
base on the bottom of the S-D2. It powers the
amplifier, digit al display and sampling lights and
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should be replaced when the letter ‘L’ appears on
the left side of the display .
9) Leather Case
The S-D2 is supplied in a leather protective case.
The unit should be kept inside the case at all
times, except when calibrating, changing the
battery or during maintenance.
INTOXILYZER® S-D2 Operator’s Manual
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INTOXILYZER® S-D2 Operator’s Manual
basic steps. These should be understood and
followed to insure maximum efficiency of operation.
OPERATION CHECK LIST
SUBJECT
BREATH
TEST
The operating sequence for
testing a subject with the
Intoxilyer® S-D2 is simple,
consisting of the following
1. Ready Check
2. Set
3. Attach Mouthpiece
4. Instruct the Subject
5. Take Sample
6. Observe Reading
7. Remove and Discard Mouthpiece
8. Reset and Wait
AMBIENT TEMPERA TURE
The Intoxilyzer
32-104° degrees Fahrenheit (0-40° Celsius) temperature
range. Keeping the instrument within this range insures
minimum condensation of alcohol and water from the
®
S-D2 is designed primarily for use in the
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INTOXILYZER® S-D2 Operator’s Manual
breath and permits both accurate and rapid breath alcohol
measurements.
It is recommended that in very cold weather the
instrument is stored in a pocket (preferably inside a coat)
and returned there after use.
PRELIMINARY
Ask the subject when he/she last took anything by mouth.
Some foods and even “non-alcoholic” drinks may contain
traces of alcohol, which the subject may later claim
affected the result of the test through a “mouth alcohol”
effect. To prevent this, wherever possible, insure that a
delay of about 20 minutes has elapsed since the subject
took anything by mouth—even medicines which may
contain alcohol.
Do not even allow the subject a glass of water prior to the
test since this will cool the mouth and dilute the saliva,
temporarily reducing the amount of alcohol in the breath,
and, consequently , the instrument reading.
Insure that no radio transmitter is currently being used in
the immediate vicinity of the test.
DET AILED PROCEDURE
This section describes in detail how the Intoxilyzer
®
S-D2 is used in a breath test and examines what is
actually happening at each stage of the operation. These
instructions are also given in the form of a checklist on the
card which accompanies the instrument as well as in the
“Introduction” section of this operator’s manual.
1) READY CHECK
The instrument should first be checked to insure it is
ready to receive a sample. This is accomplished by
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INTOXILYZER® S-D2 Operator’s Manual
checking to insure the fuel cell is discharged and free of
alcohol from any previous sample. Elimination of alcohol
from the fuel cell should take no longer than two
minutes—except in unusual cases—depending on how
much alcohol was actually present in the last sample.
To conduct a READY CHECK, depress the ‘READ’ button
and hold it down for at least ten seconds. This
will release the ‘SET’ button and switch on the amplifier
and display circuits. Observe the display; it should not
exceed .002 after ten seconds. If the display does not
show .002 or less during the ten second READY CHECK,
the fuel cell may have traces of residual alcohol from a
previous sample. If this occurs after a previous test,
depress the ‘SET’ button to lock and wait one minute
before repeating the READY CHECK. If the left digit
shows ‘L’, replace the battery.
To complete the READY
CHECK, depress the
‘READ’ button for at least
ten seconds.
2) SET
Once the READY CHECK is complete, the sampling
system must now be SET to prepare it to draw a breath
sample into the fuel cell for analysis. Press down the
‘SET’ button until it locks. This pushes down the
diaphragm and holds it against a spring-loaded catch.
This action also places a short-circuit across the fuel cell,
9
which accelerates its inter-sample recovery time.
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