Breath Test at Vehicle Start
Dräger Interlock XT User Manual V3.2 5
5 Breath Test at Vehicle Start
5.1 Preparation
Do not use or consume any product other than water within 15
minutes of using the device.
5.2 Turning on the System
To turn the system on:
1. Insert a clean, dry mouthpiece into the Interlock device as
sh
own in Figure 1 below.
2. Insert the key into the ignition switch.
3. Turn key to the on position (usually two clicks).
4. The Interlock will show “Warming up - PLEASE WAIT” on
the
display screen as shown in Figure 2 and the yellow light
on the left side of the device will remain constantly on..
5. When the Interlock is ready for the breath sample it will dis-
play “Ready for Test - PLEASE BLOW” on the screen as
sh
own in Figure 2 and the yellow light on the left side of the
device will flash repeatedly.
6. Take a few normal, even breaths.
7. Take a deep breath and put your lips around the mouth-
piece.
8. Provide a steady blow into the mouthpiece by exhaling nor-
mally. As you blow into the Interlock a tone will sound. This
mea
ns you are blowing correctly. Do not stop.
9. When the tone stops immediately give a sharp suck back
u
ntil you hear a beep.
5.3 Test Results
The Interlock will display “Test Passed” or “Test Failed” if the
breath sample was given correctly.
Test Passed: If the breath sample is below the set-point the
messag
e “Test Passed” will appear (Figure 3) and the green
light on the left side of the device will light up. Turn the key to
start your vehicle.
Test Failed: If the breath sample is above the set-point the
message “Test Failed” will appear (Figure 4) and the red light
on the right side of the device will light up. The vehicle will not
start.