Maintenance; External Cleaning - UNI-T UTS1000 Series Service Manual

Service Manual

4. Maintenance

This section contains information needed to perform periodic and corrective maintenance on the
instrument.
Pre-discharge electrostatic discharge
Before servicing this product, read the General Safety Summary and Service Safety Summary at the front of
the manual, as well as the following ESD information.
Notice: Electrostatic discharge (ESD) can damage any semiconductor components in this instrument
When performing any service that requires internal access to the instrument, observe the following
precautions to avoid affecting internal modules and their components due to electrostatic discharge:
Minimize handling of static-sensitive circuit boards and components.
1.
Transport and store static-sensitive modules in their static-protective containers or on metal rails. Label
2.
any packages that contain electrostatic sensitive boards.
When handling these modules, discharge static voltage from your body by wearing a grounded antistatic
3.
wrist strap.
Servicing static-sensitive modules only at a static-free workstation.
4.
Keep away anything that can create or maintain a static charge on workstation surfaces.
5.
Handle the board by the edges as much as possible.
6.
Do not slide the circuit board on any surface.
7.
Avoid handling circuit boards in areas where floor or work surface coverings can generate static charges.
Check and clean
Inspection and Cleaning Describes how to inspect for dirt and damage. It also describes how to clean the
exterior or interior of the instrument. Inspection and cleaning are performed as preventive maintenance.
Regular preventive maintenance can prevent instrument failure and increase its reliability.
Preventive maintenance includes visual inspection and cleaning of the instrument, and maintaining general
care while operating the instrument.
The frequency with which maintenance is performed depends on the severity of the environment in which
the instrument is used. The proper time to perform preventive maintenance is before instrument tuning.

External cleaning

Clean the exterior of the case with a dry, lint-free cloth or a soft-bristled brush. If any dirt remains, use a cloth
or cotton swab dampened with a 75% isopropyl alcohol solution. Use a cotton swab to clean up the space
around the controls and connectors. Do not use abrasives on any part of the case that could damage the case.
Clean the On/Standby switch with a clean towel dampened with deionized water. Do not spray or wet the
switch itself.
Notice:
Avoid using chemical cleaners, which may damage the plastics used in this instrument.
Use only deionized water when cleaning the front panel buttons. Use a 75% isopropyl alcohol solution as a
cleaner for cabinet parts. Please consult your Uni-Tech service center or representative before using other
types of cleaners.
Check - Appearance. Inspect the exterior of the instrument for damage, wear, and missing parts. Immediately
repair defects that could result in personal injury or further use of the instrument.
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