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19
particle counter BQ21
Maintenance and repair
Charging the battery
The battery should be charged if the battery indicator (11) on
the device flashes or if the device can no longer be switched on
(see chapter Charging the battery).
Cleaning
Clean the device with a soft, damp and lint-free cloth. Make
sure that no moisture enters the housing. Do not use any
sprays, solvents, alcohol-based cleaning agents or abrasive
cleaners, but only clean water to moisten the cloth.
Repair
Do not modify the device or install any spare parts. For repairs
or device testing, contact the manufacturer.
Errors and faults
The device has been checked for proper functioning several
times during production. If malfunctions occur nonetheless,
check the device according to the following list.
Display segments are only faintly visible or flicker:
•
The battery capacity is too low. Recharge the battery
without delay.
The device unexpectedly indicates an abnormally high or
inexplicable particle concentration at different locations in
the room:
•
Check whether the device has been exposed to strong
sunlight or concentrated light from other (possibly artificial)
sources. This can affect the optical sensor and cause a
malfunction. For this reason, do not position the device in
exposed locations (e.g. on window sills).
•
Switch the device off and restart it.
•
If the device continues to indicate high values, use
another, comparable device (if possible) and check
whether it indicates a similar particle concentration.
– If the reference device, too, indicates abnormally high
values, it can be assumed that the particle
concentration is indeed significantly increased.
– If the reference device indicates a significantly lower or
negligible particle concentration while the affected
device continues to indicate excessive values after
another restart, the affected device must be repaired/
inspected.
Disposal
The icon with the crossed-out waste bin on waste
electrical or electronic equipment stipulates that this equipment
must not be disposed of with the household waste at the end of
its life. You will find collection points for free return of waste
electrical and electronic equipment in your vicinity. The
addresses can be obtained from your municipality or local
administration. You can also find out about other return options
that apply for many EU countries on the website
https://hub.trotec.com/?id=45090. Otherwise, please contact an
official recycling centre for electronic and electrical equipment
authorised for your country.
The separate collection of waste electrical and electronic
equipment aims to enable the re-use, recycling and other forms
of recovery of waste equipment as well as to prevent negative
effects for the environment and human health caused by the
disposal of hazardous substances potentially contained in the
equipment.
Li-Ion
In the European Union, batteries and accumulators must not be
treated as domestic waste, but must be disposed of
professionally in accordance with Directive 2006/66/EC of the
European Parliament and of the Council of 6 September 2006
on batteries and accumulators. Please dispose of batteries and
accumulators according to the relevant legal requirements.
