Breath Testing Operator Class Instrumentation

8/13/2019 Breath Testing Operator Class Instrumentation

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By the end of this training, in order to get your operatorcard, the instructor must attest to your workingknowledge of the instrument.

This is accomplished either through personalknowledge of your skills and abilities, or by personallydemonstrating your knowledge through use of the

instrument. This can be accomplished by using the instrument in a

demonstration format for the instructor.


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They are INSTRUMENTS that is used formeasuring the concentration of ethanol inhuman breath.

Instruments measure, machines do work.Machines break down, instruments needrecalibration.

Machines are used by mechanics, instrumentsare used by scientists.


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Alco-Sensor III series begins on slide 5

Lifeloc FC20 begins on slide 29

Intoxilyzer 5000 series begins on slide 90

Certification for the ASIII and Intoxilyzer 5000 covers theentire series of those instruments that are approved for use inthe state of Idaho.


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How does it work?

The ASIII is a fuel cell instrument

A 1 mL sample is taken from the expired breath and analyzed by a chemical reaction with the alcohol on their breath.

Represents a single point in time snapshot of the alcoholcontent in the breath that was sampled.


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The fuel cell:


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H3PO4Pt

ALCOHOL ACETIC ACID + e- CO 2 + O 2 + H 2O

RAPID SLOW

Alcohol reacts to produce electrons (electricity). This electriccurrent represents the amount of alcohol in the breath sample.

electrons


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How does it work?

The electrons are given off in an exact proportional

ratio with respect to the EtOH.Therefore the electric current produced by this reactionis directly proportional to the amount of EtOH present.This result is displayed on a digital readout as BrAC.


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Specific?

The fuel cell is not specific to ethanol and will react

with all alcohols. Technically 18-8004 states It is unlawful for any person who

is under the influence of alcohol, drugs or any otherintoxicating substances, or who has an alcohol concentrationof 0.08 . to drive or be in actual physical control of a motorvehicle


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Operation:

The SET button controls the

spring-loaded sampling valve.With the SET button in thelocked-down position, theAlco-Sensor is ready to take asample.


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The SET button clears the sample chamber when it isdepressed. This purges the chamber of all air andreadies it to accept a sample.

When the instrument is not actually reading a sample,the SET button should be locked down. This helps to

prevent the fuel cell from drying out.


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The READ button .

Light pressure on the READ button unlocks the SET

button and draws a 1ml sample of air into the fuel cellfor testing.

Continued full pressure on the READ button connectsthe 9-volt battery with the digital display and thealcohol reading appears. (Older version)


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On the older versions, if you let go of the READ button, the display goes blank.

You must keep the pressure on the READ button untilthe display stops climbing and stabilizes.

The new version of the AS III; no need to hold READ button down.

The new version has the red slider on the side for releasing themouthpieces. It also does not have the liquid crystalthermometer.


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ASIIIa (the new version)

Once the READ button is pressed, (no need to hold it

down) the reading will appear dim. When it suddenly brightens, the analysis is finished and the peak readingis displayed.


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If the DIGITAL DISPLAY shows .888 , this means that the 9volt battery is low and should be replaced.

The new version may give you a bAT message toindicate that the battery need replacing.

Use only a 9-volt alkaline battery.


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AIR INLET PORT

This port has a flared top to hold the mouthpiece

securely.

Air is drawn through the inlet port and into the fuelcell for analysis.


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Mouthpieces?

The 2002 Operators Manual states:

Using mouthpieces of other design than those supplied by the manufacturer may cause inaccurate readings byas much as 10-20%. For instance, whistling or overlyrestrictive mouthpieces can either draw room air into

the breath sample or pressurize the systeminaccuratereadings


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Intoximeters on the right, brand X on the left. Which is more restrictive??


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LIQUID CRYSTAL THERMOMETER

Located on the back of the Alco-Sensor III.

Has a range of 20C to 38 C (the optimum operatingtemperature of the instrument ).

When reading the thermometer, use the last numberthat you can read clearly as the temperature.


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The New Version ASIIIa

Hold the SET and READ buttons down.

Temperature is displayed in degrees C.

Acceptable range for use is 15 C to 36 C.

What does 15 C to 36 C equal in F ?? It would be a range between 59 F and 96F.


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RFI?

RADIO FREQUENCY INTERFERENCE

Can cause unusual readings on the display.Officers should watch the display for fluctuations ofthe reading.


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General Maintenance:

Avoid exposure to cigarette smokeAvoid temperature extremesLock Set button between uses Cycle Set/Read if flooded, may require theinstrument to sit overnight.Use the instrument regularly. The moisture from your

breath will help keep the fuel cell moist andfunctioning properly for a long time.


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Testing sequence again 1. 15 minute monitoring period2. Check temperature of ASIII.3. BLANK (must be 0.003 or less)4. SAMPLE 1 new mouthpiece, get a deep lung air

sample.5. WAIT approximately 2 minutes6. BLANK (must be 0.003 or less)7. SAMPLE 2 new or same mouthpiece

~if the first two samples are more than 0.020 apart then:8. WAIT approximately 2 minutes9. BLANK (must be 0.003 or less)10. SAMPLE 3 new or same mouthpiece


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With a Printer:

You will get a printout after the last BLANK when you lock inthe SET button.

When the test is completed, enter the results on the log sheet.

If you have a printout, use the first time shown by the first BLANK. Logging the results is the last step in the Alco-Sensor test. Enter the information LEGIBLY, so it can be read at a later date.

Someone may have to testify to your handwritten results.


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New ASIIIa

After the final test result is displayed, the instrument will flashSET 10 times, then go into power save. At any time after the final test result is displayed and Beforethe SET button is pressed , pressing the READ button will

bring up the most recent test on the display.Once the SET button is pressed, the test cannot be recalled.


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New ASIIIa

Some messages that may appear on the display:

SEt Lock down the SET button. bAt Battery needs replacement.

bLn Press READ button to run an air blank. bAd Instrument unable to run a successful blank.


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Up next:

Lifeloc FC20


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Officially approved for evidentiary use in Idaho as ofFebruary 1, 2008.

It is a fuels cell instrument like the ASIII.


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H2SO4Pt

ALCOHOL ACETIC ACID + e- CO 2 + O 2 + H 2O

RAPID SLOW

Alcohol reacts to produce electrons (electricity). This electriccurrent represents the amount of alcohol in the breath sample.

electrons


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How does it work?

The electrons are given off in an exact proportionalratio with respect to the EtOH.Therefore the electric current produced by this reactionis directly proportional to the amount of EtOH present.This result is displayed on a digital readout as BrAC.


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Specific?

The fuel cell is not specific to ethanol and will reactwith all alcohols.

Technically 18-8004 states It is unlawful for any person whois under the influence of alcohol, drugs or any otherintoxicating substances, or who has an alcohol concentrationof 0.08 . to drive or be in actual physical control of a motorvehicle


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Rapid response~250 Test memoryPrint results later*

Auto-test modeManual override0.02 agreement requiredInsufficient sampledetermination


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Printer capable :

Print now or later

Rechargeable batteriesThermal printerImpact printer

Impact: Ribbon or noribbon (three-copy paper)


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FC20 serial numberEvent number

Test date

Manual test indicator

Subject ID data


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Testing sequence again 1. 15 minute monitoring period2. MANUAL BLANK (must be 0.000 or less)3. SAMPLE 1 new mouthpiece, get a deep lung air

sample.4. WAIT automatic countdown for 2 minutes5. AUTO BLANK (must be 0.000 or less)6. SAMPLE 2 new or same mouthpiece

~if the first two samples are more than 0.020 apart then:7. WAIT automatic countdown for 2 minutes8. AUTO BLANK (must be 0.000 or less)9. SAMPLE 3 new or same mouthpiece


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Mouthpiece has two ports that must alignwith ports on the

instrument


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The mouthpiece mustfit tightlyPractice: Installwithout taking eyes offsubject


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Five Main Menu Screens press Function 1) Testing: Appears at power-on

2) Printing: Appears at conclusion of subject testing3) Calibration: Used for Performance Verifications4) Settings: Date, time, printing, others5) Status: Test log status, battery, temperature


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Any time youre in the

various menus, pressingthe Power button brieflywill take you back to theSubject I.D. window


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Sequence Mode OnManual overrideavailable by pressing theexec button during the

blow.Subject I.D. is firstdisplay; +/- keys to enter;Function = by-pass.I.D. data appears on

print-out


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If the instrument is toohot or too cold, thismessage appears and

instrument will notoperate until the internaltemperature is withinrange.

The instrument is testeddown to 10C and up to37C


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Warns that theinstrument calibration isgoing to expire.

Starts 14 days prior toexpiration. No numerical countdownReturn to ISP lab


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WHY?

14 day warning.180 210 days (~ 6-7 months)Quality control.Fuel cell break-in period.If a single jurisdiction gets multiple FC20s, ISP-FS willstagger the expiration so not all the instrument aredown at once.Will only happen one time, then the countdown will bedisabled.


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The calibration hasexpired.Instrument will not run

any subject tests or WetChecks/PerformanceVerifications.Must be calibrated byISP.


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Air blank must be 0.000 or it fails, so be extra carefulwhere your test subject is breathing when you run a

blank.If it fails, then it will count down two minutesSecond air blank will be taken automatically.If you get a second failure: Aborted: 2 air blank failures

will be displayed and the instrument will discontinuethe testing sequence.


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Power onUse +/- keys to enterletters, numbers

Press functionAir blank screenSubject ID may be

bypassed withFunction


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Event 118Battery iconPress Exec to take air

blankFirst air blank notautomatic


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During auto sequencethe succeeding air

blanks are automaticTwo minute countdownAir blank runs

Countdown clock


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If the test result was anything other than 0.000 the blank fails, it is important to remove the mouthpiecefor the air blanks.

Not uncommon for instruments with complexmouthpieces to retain moisture in the cornersSometimes necessary for Alco-Sensor IIIEspecially if it is cold outside and their breath

condenses inside the mouthpiece.You can use a new mouthpiece if necessary.


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Ready for subjectDefaults back to amanual air blank if test

not taken within twominutesAir blank time out Must press Exec totake the next air blank


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Sequence mode offCan use the auto testfeature in manual modefor instrumental deeplung air calculationMust press Exec totake the air blanks

All samples and timingof blanks are dependentupon the operatorKeep good records ofthe results!!Log everything


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1st Graph shows subjectis blowing

Not an indication of

alcohol!!Could have a significantgraph with a zero breathalcohol


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If necessary, pressExec to take sample

Auto-Test

Manual test taken


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A visual aidInstrument isdetermining alcohol

concentration in sample


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Subject refuses testBriefly press PowerThis screen appears

Press Exec to change


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When this screenappears, press Function


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Use Exec to select eitherSubject Refusal orOperator Termination

Then Function takes youto print screen


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Provides a printed recordBatch number


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Once in print screen, use+/- to select a certain testfor printing

Or select All


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Function/FunctionPrint IconUse +/- buttons to select

All Exec should print Prints all test results


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Prints StoredCalibration/PerformanceVerification Data


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Notches and screws on plug face up.


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Not connected Not turned onCable problem

Fix and print


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PumpMotor

PumpBellows

Fuel Cellunder this bracket


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Should be seen rarelyIf it appears more thanonce, contact Lifeloc


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Use Function toget to CalibrationscreenThen Exec takesyou to Wet Checkscreen


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Can use the +/- buttonsto adjust the Std valueThe Std value printsalong with the resultsConnect to simulatorPress Exec to take

sample


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Results are displayedPress Exec to print

No air blanks required

Wet Check screen comesup againTake sample, print


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Must print immediatelySucceeding Wet Check results will overwrite, the datawill be lostOnce the simulator is ready and the connection made,two samples can be run and printed in two minutes orless.


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Date instrument was lastcalibrated

Date of your performanceverification

One printout per samplerun


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Wet Check ResultsPrint-as-you-goMemory only stores

most recent resultRun-print-run-print

Will be overwritten ifanother Wet Check is run


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Run the cal check as a Subject SampleInput subject I.D. as Cal check 08/20

Once the simulator is connected and ready, two samples can be run and printed.May have to use the manual test when using a simulator.ADVANTAGE results will be stored until deleted fromthe test log.

DISADVANTAGE results will not be included on thelong format when printing and could be confusing if thelong format is being utilized.


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Shorter is better!!Less condensationTubing and mouthpieceshould fit tightly, notlike shown here!

Fitting available fromISP labs


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Mouthpiece and cleartubingAlco-Sensor IIImouthpiece insertinstead of tubingSimilar for other

simulators


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Accessed with Function Battery conditionInstrument temperatureSoftware version


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Warning Low Batterydisplayed in testingwindow when the

batteries are criticalDo not use rechargeable

batteries


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Does not automatically adjust for DSTPress Function until the Settings screen appears. Use+/- to adjust hours, press Next Digit to move tominutesPress Function to bring up datePress Function to bring up Shutoff TimePress Function again, ID Settings screen


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Recommend Subject ID Letters/Numbers may be entered, printBatch may be used to ID an agency, operator. Doesnot need to be re-entered every test. Also printsMay use both Subject ID and Batch


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Normal testing for IdahoFunction takes you toPrint Settings

Or press Power button briefly to go back toSubject IDTurning this option off

puts the instrument inmanual mode


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Number of copiesPrinter selectionFormat: Long or Short

Long format includesdate of last calibrationand most recent

performance verification

This is a Wet Check printout. Long formatincludes this data along

with subject test


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Function from Print Settings Adjust contrast with the +/- buttonsTest order: Auto-Man-PassiveResults format: NumericPass and Fail levels-not relevant


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Status displayPressing Exec in the ClearTest Log-No screen takes youto this display

Function will now erasethe test logPressing Function will

now clear the log

No way to recover data! Ever!! Never Ever!!!


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Questions?


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The Intoxilyzer 5000 uses the principle of infraredabsorption.Each molecule of alcohol absorbs a certain frequencyof infrared light.The amount of light absorbed is directly proportionalto the amount of alcohol present.A known intensity of light is transmitted through a

sample chamber.


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A detector is located on the far side of the samplechamber.The difference between the amount of lighttransmitted and the amount of light detectedcorrelates directly with the amount of light absorbed

by the alcohol.The instruments computer calculates the exact

concentration of alcohol in the sample chamber basedupon this difference.


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*23 on display means your source is out.(Change light bulb)


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No switchesFive filtersStandby ModeAutomatic Simulator Temperature monitoringSwitches Automatically to External Printer


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A. Breath tube is a heated tube (>34C)which directsthe subjects breath into the chamber.(Also containsa wire that is the antennae for the RFI detectsystem)

B. The mouthpiece is a disposable plastic piece with a baffle to keep stuff out of the instrument C. The digital display is a 16 character alpha-numeric

readout which contains a variety of information for

the operator.


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D. The green START BUTTON starts the test.E. The red POWER SWITCH turns the instrument on

and off.F. The evidence card is a three copy printout showing

instrument location, date, instrument serial number,subject name, subjects drivers license number,operator name, agency, lot number, calibration

check results, subject test results along with timesfor each.


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G. Computer RESET SWITCH is a rocker switch that

is used in certain circumstances to cancel alloperations and return the instrument to the notready mode (it should then cycle into the standbymode). Similar to a computer reboot.


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Monitors and compares the ratio of light absorption atdifferent wavelengths.Uses a reference wavelength that does not react withany substance in the human breath.

5 Filters: (0) Reference channel, (1)alcohol channel,(2,3,4) interferent comparison channels.All the filters work together to make the instrumentmore specific for Ethyl Alcohol concentration.


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The instrument will cancel the test and print INVALIDSAMPLE. How does it know?When you breathe, what breath comes out first?


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0

0.02

0.04

0.06

0.08

0.1

0.12

0.14

0.16

0.18

Duration of breath sample

E t O H C o n c e n t r a

t i o n

Mouth alcohol present

Example of BAC = 0.16(no mouth EtOH present)


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Answer questions entering subject dataThe instrument will automatically perform a purgeand blank, then will check the internal standards andcalibration

If the internal standards pass, another air blank will be taken and the testing sequence will continue. If the internal standards fail, INTERNAL

FAILED will be displayed, another air blank will

be taken and the testing sequence will end.


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If the instrument standards are within range, theinstrument will perform a calibration check usingan external (simulator) standard. If the performanceverification check is within range, another air blankwill be taken and the testing sequence will continue.

If the PV check fails, OUT OF TOLERENCE

will be displayed, another air blank will be takenand the testing sequence will end.


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If the first two samples are 0.02 or more apart, theinstrument will automatically request a third sample.

If the subject refuses to provide any of the samples, press the green START button when PLEASEBLOW/R shows on the display. Or you could let the instrument time out (3 min).


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Printouts are a permanent record of the test results and blanks for your subject testThe log sheet is just as important as the printout andmay be used in court in lieu of the printout.


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Older instruments (66-series) Blow hard enough to open the pressure switch Blow for a minimum of 5 seconds The instrument must detect a positive slope that is leveling off.

If these requirements are not met the instrument will flag deficient sample


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5000 EN 1.1 Liters of air must be expired Blow for a minimum of 1 second The instrument must detect positive slope that is leveling off.

If these requirements are not met the instrument will flag deficient sample


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Clean case with non-abrasive spray.

Keep the area around the instrument free of dirt anddust.

Do not place anything on top of the instrument.


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A performance verification is performed before everysubject test It must pass or the test is aborted

The instrument does not need to be calibrated unless it

cannot pass its performance verification checks.


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An external simulator solution is used to confirm the performance of the Intoxilyzer 5000.The operator must verify that all connections are tightand that the simulator temperature is within range. The temperature must be between 33.5 C and 34.5 C. If not, do not run

the test. If the simulator is turned off, turn it on and wait at least 15 minutes for

the solution to warm up before running test. The simulator is ready when the top metal lid is as warm as the bottom

jar.


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Questions

Breath Testing Operator Class Instrumentation

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