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25 User Guide
© 2018 Lion Laboratories Ltd
Page 9
Providing a Sample
1.
Remove the handset from its docking station by lifting upwards parallel to the mounting surface.
2.
Insert a clean dry mouthpiece into the mouthpiece holder being careful to align the Location Key. For
full details see section below titled "Disposable Mouthpiece". Take a deep breath, seal your lips
around the wide end of the mouthpiece and blow into it for a minimum of 3 seconds. The handset
will detect your breath flow and will emit a continuous tone as long as you are blowing sufficiently
hard. Once sufficient breath has been blown the continuous tone will stop and will be followed
closely by a click. Once you have heard the click, stop blowing.
3.
You will now see the handset display show the message "Analysing"
4.
After a few seconds, your breath sample will have been analysed and, if the breath alcohol level is
below the pre-set cut-off, then "PASS" will appear on the handset display. A coded signal will be sent
immediately to the Control Unit in order to unblock the ignition circuit. Return the handset to its
mounting position. You now have a start period of a number of minutes (your installer will tell you
how many) which will be displayed on the
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25 handset during which you may start your vehicle,
even if you turn the ignition off and then back on.
5.
When the vehicle is started, the start period is cancelled and “SAFE JOURNEY” is displayed, after 20
seconds the handset display will turn off.
6.
The
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will return to its standby mode automatically in the event that the vehicle is not started
and the start period expires.
Breath test FAIL (vehicle start BLOCKED)
If the handset displays "FAIL" then it has detected alcohol in the breath at a level in excess of the pre-set
cut-off. If you have observed the points shown in the "Before Providing a Sample" section of these
instructions, then you have a breath alcohol level above the pre-set cut-off. Wait for a period of 15
minutes and try again. By this time your breath alcohol level may have reduced to a point whereby you
will pass the test. The alcohol level in every breath test is recorded by the
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25.
Restart Period
After the vehicle engine is switched off, the
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system enters what is called a Restart Period. This
period is displayed on the
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handset during this period, the engine may be restarted without the
need for a breath sample to be provided. This feature allows the driver to restart quickly should the
engine be stalled or be turned off for a short period. See your programme administrator for details of the
length of the Restart Period.
