Exterior Cleaning; Screen Cleaning - UNI-T UT8806E Service Manual

Service Manual

Exterior Cleaning

Clean the exterior surfaces of the chassis with a dry lint-free cloth or a soft-bristle brush. If any dirt
remains, use a cloth or swab dipped in a 75% isopropyl alcohol solution. Use a swab to clean narrow spaces
around controls and connectors. Do not use abrasive compounds on any part of the chassis that may
damage the chassis.
Caution： Avoid the use of chemical cleaning agents which might damage the plastics used in this
Appearance Inspection Inspect the outside of the instrument for damage, wear, and missing parts.
External Inspection Checklist
Item
Cabinet, front panel, input port
Rotary knon on front panel
Connection
Carrying handle and support leg
Accessories

Screen Cleaning

Please use wet tissue or a soft cloth to wipe the dust from the screen and surface.
If the display screen is very dirty, please use a cloth to dipped in distilled water, 75% isopropyl alcohol
solution or glass cleaner to slightly wipe the sceen surface. Only use enough water to wet the cloth or to
wipe. Please do not use excessive force, which may damage the display surface.
Caution： Improper cleaner and cleaning way will cause damage to the screen.
Do not use abrasive cleaner or surface cleaner to clear the LCD.

Do not directly spray water on the LCD surface.

Do not excessive force to wipe the LCD.

Caution： To prevent moisture inside the instrument during external cleaning, do not spray any
Instruments.uni-trend.com
instrument.
Use only deionized water when cleaning the front-panel buttons. Use a 75% isopropyl
alcohol solution as a cleaner for cabinet parts. Before using any other type of cleaner,
consult UNI-T Service Center or representative.
Immediately repair defects that could cause personal injury or lead to further
damage to the instrument.
Inspect
Cracks, scratches, deformations,
damaged hardware
The knob is missing, damaged or
loose
Broken shells, cracked insulation,
and deformed contacts
Dirt in connectors
Correct operation
Missing items or parts of items,
bent pins, broken or frayed cables,
and damaged connectors
cleaning solution onto the screen or instrument directly.
UT8806E Desktop Digital Multimeter
Repair Action
Repair or replace defective modules
Repair or replace missing or
defective knobs
Repair or replace defective modules
Clear or brush out dirt
Repair or replace defective modules
Repair or replace damaged or
missing items, frayed cables, and
defective modules
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