Omron NSA12-15-TX11B, User Manual

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5-2 Cleaning and Inspecting
5-2-1 Cleaning
5-5
5
Maintenance
5-2 Cleaning and Inspecting
Clean and inspect the NSA-series Industrial PC regularly to ensure optimal
performance.
5-2-1 Cleaning
The display becomes difficult to read when it gets dirty. Be sure to clean it regularly
as described below.
Use a soft, dry cloth to wipe off the display every day. Do not use excessive force
to clean a display that is very dirty because you may damage the front panel.
Instead, moisten the cloth first to remove the dirt.
•
If wiping the display with a dry cloth fails to remove the dirt, moisten the cloth
with a highly diluted solution of mild detergent (2%) and then wring the cloth
well before using it to wipe off the display.
•
Adhering rubber, vinyl, or tape to the Unit for extended periods of time will stain
the NSA-series Industrial PC. Remove these items from the Unit each time you
clean it.
Note
Never use chemically treated cloth or volatile solvents, such as benzene or thinner, to
clean the product.
5-2-2 Inspecting
Inspect the NSA-series Industrial PC once or twice a year. Shorten the interval
between inspections if the operating environment is extremely warm, moist, or
dusty.
„
Inspection Items
Inspect the following items to make sure they are within acceptable levels
according to the judgment criteria. If the inspection results fall outside these levels,
improve the operating environment and re-tighten screws or take other measures
to bring the results back within the acceptable range.
Inspection item Inspection details Judgement criteria
Inspection
method
Supply voltage Power terminal voltage
fluctuation
Allowable voltage fluctuation
range (24 VDC
±
15%)
Circuit tester
Ambient temperature in the
operating panel and near the
LCD display
0 to 50
°
C (See 1-2-2.) Thermometer
Ambient humidity in the
operating panel and near the
LCD display
10% to 85% (See 1-2-2.) Hygrometer
Presence of dust No dust built up. Visual
Ambient operating
conditions
Presence of oil build up No specks of oil between the
front panel and the molded
plastic.
Visual
Mounting
conditions
Loose Mounting Brackets Tightened to the specified
torque
Torque
screwdriver