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5
• Carry out the following operations
before opening or removing any access
panels or carrying out any work on the
X4I:
i. Isolate the X4I from the main
electrical power supply. Lock the
isolator in the “OFF” position
and remove the fuses.
ii. Attach labels to the isolator
switch and to the unit stating
“WORK IN PROGRESS - DO NOT
APPLY VOLTAGE”. Do not switch
on electrical power or attempt to
start the X4I if such a warning
label is attached.
• Make sure that all instructions
concerning operation and maintenance
are strictly followed and that the
complete unit, with all accessories and
safety devices, is kept in good working
order.
• The accuracy of sensor devices must be
checked on a regular basis. They must
be calibrated when acceptable tolerances
are exceeded. Always ensure any
pressure within the compressed air
system is safely vented to atmosphere
before attempting to remove or install a
sensor device.
• The X4I must only be cleaned with a
damp cloth, using mild detergents if
necessary. Avoid the use of any
substances containing corrosive acids or
alkalis.
• Do not paint the control faceplate or
obscure any indicators, controls,
instructions or warnings.
www.air.irco.com X4I System Automation