Page 6–2
UPLC™ Application Manual
6.4 Inspection
A program of routine visual inspection should
include:
• Condition of cabinet or other housing
• Tightness of mounting hardware and fuses
• Proper seating of plug-in relays and sub-
assemblies
• Condition of internal and external wiring
(the location where external wiring enters
the cabinet should be sealed)
• Appearance of printed circuit boards and
components
• Signs of overheating in equipment:
•
Interference with proper heat dissipa-
tion from surfaces
•
Clogged air vents (air filters should
be removed and washed out)
• Dust which may cause short circuits
6.5 Solid-State Maintenance
Techniques
Use the following maintenance techniques when
servicing solid state equipment.
6.5.1
Preliminary Precautions
1. To avoid damage to circuits and components
from a current surge, disconnect power before
replacing or removing components or circuits.
2. Before placing new components into a defec-
tive circuit, check the circuit so that it cannot
damage the new components.
!
CAUTION
WE RECOMMEND THAT THE USER OF THIS
EQUIPMENT BECOME ACQUAINTED WITH THE
INFORMATION HERE BEFORE ENERGIZING
THE UPLC™ AND ASSOCIATED ASSEMBLIES.
FAILURE TO OBSERVE THIS PRECAUTION
MAY RESULT IN DAMAGE TO THE EQUIPMENT.
IT IS POSSIBLE, BUT NOT RECOMMENDED TO
REMOVE OR INSERT PRINTED CIRCUIT MOD-
ULES WHILE THE UPLC™ IS ENERGIZED.
PROPER PRECAUTION CAN PREVENT COM-
PONENT DAMAGE.
ALL INTEGRATED CIRCUITS USED ON THE
MODULES ARE SENSITIVE TO AND CAN BE
DAMAGED BY THE DISCHARGE OF STATIC
ELECTRICITY. BE SURE TO OBSERVE ELEC-
TROSTATIC DISCHARGE PRECAUTIONS WHEN
HANDLING MODULES OR INDIVIDUAL COMPO-
NENTS.
Содержание UPLC CU44-VER04
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