Omron NSH5, Руководство по эксплуатации

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66
Inspection and Cleaning
Section 5-2
Items to Inspect Inspect the following items to determine whether there is any divergence from
the stated criteria. If there is, either improve the surrounding environment so
that the values fall within the stated range, or adjust the PT by, for example, re-
tightening screws.
Note (1) Do not disassemble for repairs or modification.
(2) Disposal of batteries may be regulated by local authorities. Dispose of
them in accordance with the applicable laws and regulations.
Inspected
item
Inspection details Criteria Method
Power supply
voltage Fluctuation in power
supply terminal volt-
age Allowable voltage
fluctuation range
(24 VDC
±
15%)
Tester
Ambient envi-
ronmental con-
ditions Ambient temperature
0 to 40
°
C
Thermometer
Ambient humidity 35% to 85% Hygrometer
Presence of dust There must be no
accumulated dust. Visual
Presence of oil There must be no oil
penetrating between
the front-panel sheet
and the plastic. Visual
Mounting con-
ditions Looseness of mount-
ing brackets Must be tightened to
the specified torque. Phillips screwdriver
Connecting cable
connections Must be fully inserted
and locked, with no
looseness. Visual
Looseness of screws
in external wiring There must be no
looseness. Phillips screwdriver
Conditions of exter-
nal connecting cables Must not be starting
to break or have
other faults. Visual, tester
Consumable
parts Brightness of back-
light Must be sufficiently
bright.
Backlight service life:
50,000 hours at 25
°
C
Visual
Battery
5 years (at 25
°
C)
Replacement every
five years