Omron NT30C-ST141-E Operation Manual page 268

Inspection and Cleaning
Point Inspected
Mounting conditions
Components with limited
lives
Caution
Reference
256
Inspection Details
Looseness of mounting
brackets etc.
Connector connections of
connecting cable
Looseness of screws in
external wiring
Conditions of external
connecting cables
Brightness of the backlight
S If a faulty unit is returned for repairs, write as detailed a description of the fault
as possible and send this description together with the unit to the OMRON ad-
dress indicated on the back cover of this book.
S When disposing of an PT that is no longer required, be sure to comply with any
local restrictions that apply to its disposal.
Cautions on replacing the NT30/30C
When replacing the NT30/30C after discovering a fault during inspections,
note the following points:
S Be sure to switch the power OFF before replacement.
S After replacement, check that the new NT30/30C is not subject to the same
error.
Criterion
To be no looseness
To be fully inserted and
locked, with no looseness
To be no looseness
Faults such as incipient
disconnections.
Must be sufficiently bright.
Backlight life:
Brightness is halved after
about 10,000 hours in use.
Section 6-4
Inspection Instrument
Accessory tools
Philips screwdriver
Visual inspection
Visual inspection