1. Insert a mouthpiece into the mouthpiece inlet.
2. Push the ON/OFF power switch that is located in the right side under the display window.
- The unit will show “Full display” firstly and “on” along with a welcome sound. And then it starts
countdown which will be taken about 15 ~ 35 seconds. This warm-up process prepares the sensor
and circuit for testing.
3. When you hear a beep sound & “bLo” display is on, please blow steadily into the
mouthpiece until you would hear the “Beep” sound again. Stop blowing.
- In this stage, if you don’t blow within 20 seconds, it automatically turns off. Try to power on again.
4. After the circling line is on the display for 3 ~ 35 seconds, the test result (BAC or BrAC)
will be displayed by 4 digits for 30 seconds along with beep sound.
- If the test result is over 0.050%/0.250mg/l (default setting) respectively, the LCD color will be
changed to orange and “WARN” signal will be displayed along with “Alarm” sound.
Operation
- The result will be displayed for 30 seconds (light on for the first 15 seconds and light off for another
15 seconds). If you push the power switch during the last 15 seconds, the unit goes back to countdown
stage for another test.
5. Finally, the unit will show “OFF” and turn off automatically along with a sound.
6. For the successive testing, try again from No.2 to No.4.
7. Space tests at least 2 minutes apart.
