Hioki 3390 - Chapter 11 Maintenace and Service; Cleaning; Trouble Shooting

11.1 Cleaning
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Chapter11 Maintenace and Service
Before requesting instrument repair or inspection, please read "Before returning for repair" (p. 176) and
Section "11.3 Error Indication" (p. 177).
Inspection and Repair
Transporting the instrument
Transporting
Pack the instrument so that it will not sustain damage during shipping, and include a description of exist-
ing damage. We do not take any responsibility for damage incurred during shipping.
Maintenace and
Service Chapter11
11.1 Cleaning
• To clean the instrument, wipe it gently with a soft cloth moistened with water or mild deter-
gent. Never use solvents such as benzene, alcohol, acetone, ether, ketones, thinners or gas-
oline, as they can deform and discolor the case.
• Wipe the LCD gently with a soft, dry cloth.
11.2 Trouble Shooting
Touching any of the high-voltage points inside the instrument is very dangerous.
Do not attempt to modify, disassemble or repair the instrument; as fire, electric
shock and injury could result.
If the protective functions of the instrument are damaged, either remove it from service
or mark it clearly so that others do not use it inadvertently.The instrument contains a
built-in backup lithium battery, which offers a service life of about ten years. If the date
and time deviate substantially when the instrument is switched on, it is the time to
replace that battery. Contact your dealer or Hioki representative.
• If damage is suspected, check the "Before returning for repair" (p. 176) section
before contacting your dealer or Hioki representative.
However, in the following cases, immediately stop using the instrument, unplug the
power cord and contact your dealer or Hioki representative.
•When the nature of the damage is clearly evident
•When measurement is impossible
•After long-term storage in adverse conditions such as high temperature or humidity
•After being subject to severe shock during transport
•After severe exposure to water, oil, or dust (internal insulation can be degraded by
oil or water, causing increase hazard of electric shock or fire)
• If measurement settings cannot be saved, contact Hioki for repair.