Vlectro VL-AT - Common Faults and Solutions; Device Maintenance

Vlectro VL-AT
1* user manual
1* color box
Mouthpieces (Quantity optional)
Optional accessories:
2 * AAA alkaline batteries
Tip: If find that the instrument is damaged or missing accessories, please contact your
supplier.
◼ Common faults and solutions
Faults
Possible causes
Solutions
Cannot power
on
Low battery.
Replace new batteries.
Batteries are upside down.
Re-install the batteries in right
way.
The two test
results differ
greatly in a
short time
The vent outlet maybe
blocked during one test.
Don’t block the vent outlet while
doing breath test.
After drinking alcohol, the
waiting time is not enough
before the alcohol test.
To get a more accurate test result,
please abstain from smoking and
drinking for at least 20 minutes
before testing.
Before the test, no water
or non-alcoholic beverages
were used to rinse the
mouth and a large amount
of alcohol remained in the
mouth.
Rinse out your mouth with water
or non-alcoholic drinks before
using the unit. To ensure the test
result more closer to human Blood
Alcohol Concentration. Since
residues of alcohol in mouth will
affect the measured values.
◼ Maintenance
◆ Keep the device (especially the blow hole of the device) away from organic solvents
(such as alcohol, etc.) while cleaning the surface of instrument.
◆ Don’t let alcohol or any other liquid enter into the device, or it will cause permanent
damage to the sensor.