Dräger Alcotest 9510 Technical Manual page 14

10.2.1 Breath-Analytics Criteria
The various breath flow thresholds:
Start flow rate is 8.0 L/min.

Minimum/Stop flow rate is 4.0 L/min.

NOTICE
i
i
Setting the start flow rate above the minimum/stop flow
rate ensures that the breath test is not prematurely re-
jected due to a minor fluctuation in the flow rate from
the subject.
Acceptance criteria for a Breath Test:
Minimum blow time is 5.0 seconds.

Minimum breath volume 1.5 liters.

Plateau recognition if the concentration increases ≤4% in 1

second.
Inhalation is detected by the 9510. If the subject inhales

through the breath hose, an error "Inhalation detected" will
be generated.
Acceptance criteria of Breath Test 1 and Breath Test 2:
If all 4 of the test results (IR and EC from each of the two

breath samples) are greater than or equal to 0.010 g/210L,
all 4 results must be within ±10% of the mean of all 4 test
results (truncated to 3 digits after the decimal).
Acceptance criteria of the external standard checks within
the breath test sequence:
External standard checks must be within 0.072 and 0.088 g/

210L inclusive.
10.2.2 Refusals
To indicate refusal, press the "Stop" icon once all data entry
sequences have been completed. Three separate buttons can
be selected indicating "Refusal", "Incomplete" or "Continue". If
"Refusal" is selected, the test will be aborted and the printout
will indicate "Test Result:
"Incomplete" is selected, a printout will be provided
automatically. A printout can be printed manually by selecting
"Reprint" from the "READY" screen.
Dräger Alcotest 9510 Washington Technical Manual V3.1 2014
SUBJECT REFUSED".
10.2.3 Failure to Achieve Acceptance Criteria
Any interruption of blowing or failure to satisfy the minimum
requirements, such as minimum volume and minimum blowing
time, will result in an insufficient breath sample. If any of the
breath test acceptance criteria are not satisfied the instrument
will display "TAKE BREATH" and an error message showing
the problem:
MINIMUM VOLUME NOT ACHIEVED
BLOWING TIME TOO SHORT
BLOWING NOT ALLOWED
PLATEAU NOT ACHIEVED
INHALATION DETECTED
Try the following remedies:
The subject needs to blow for a longer time.

Have the subject take a deeper breath and blow for a lon-

ger time at a slower rate.
Ensure that the subject waits for the "PLEASE BLOW"

prompt to appear on the display before blowing into the in-
strument.
If an insufficient breath sample was provided, the breath test
will be repeated. The instrument will allow the subject as many
attempts as necessary to obtain a successful breath sample in
a 120 second period. The operator can press "STOP" at any
time to indicate a "Refusal", "Incomplete", or to return to the
test using "Continue".
10.2.4 Printout
After the final result is displayed, a complete data and
measurement report is printed to the external printer. Note that
not all data entered is reproduced on the printout. After the
printout has been completed, the operator has the ability to
print another copy by pressing the "Reprint" button on the
lower right corner of the touch screen at the "READY" prompt.
The instrument is now ready to perform another breath test.
If
To reprint a test other than the previous test performed, please
refer to the "Reprint" function in Settings.
Evidential Breath Test Sequence
14