Fnirsi LPM-10A Benutzerhandbuch Seite 95

6.3 Network cable test error
Possible reasons：
•There are debris in the test interface
•System software abnormality
Solution：
① Clean the test interface and test again.
② If cleaning is ineffective, the test interface may need to be repaired and
replaced.
③ Download the firmware upgrade file from the official website and
update the system version.
7.MAINTENANCE
Cleaning the outside of the device
●Frequency: Clean once a month, depending on the usage
environment.
●Method: Use a soft cloth to gently wipe the surface of the device. Avoid
using chemical cleaners, especially those containing alcohol or strong
acids or alkalis, to avoid damaging the casing or screen.
●Note:
• Clean the dust around the device and buttons regularly to keep the
device in good condition.
• Ensure that no liquid, dust or debris enters the device interface.
Check the battery and power:
●Battery maintenance:For meter with built-in batteries, check the health
of the battery regularly. Avoid complete battery discharge. It is
recommended to charge regularly and avoid not using the device for a
long time.
●Charging specifications:Use the official charger to charge, avoid
overcharging or over-discharging, and ensure that the battery is in the
appropriate operating voltage range.
●Battery replacement:If the battery shows excessive attenuation (such
as failure to charge normally or extremely fast discharge), it should be
replaced in time.
Storage and Carrying:
●Storage environment: The meter should be stored in a dry and
ventilated environment, avoiding high temperature, high humidity or
drastic temperature changes. Avoid placing it in direct sunlight.
●Carrying:Be careful to avoid falling when using, especially when
carrying.
•Test interface aging
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