Tyco 1540 - Manual (Page 65)

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Integra 1540, 1000, 0640, 0440, 0340, 0240 Issue 1 04/03
7 Maintenance
Warning
• During normal operation, voltages hazardous to life may be present at some of the terminals
of this unit. Installation and servicing should be performed only by qualified, properly trained
personnel' abiding by local regulations. Ensure all supplies are de-energised before
attempting connection or other procedures.
• It is recommended adjustments be made with the supplies de-energised, but if this is not
possible, then extreme caution should be exercised.
• Terminals should not be user accessible after installation and external installation provisions
must be sufficient to prevent hazards under fault conditions.
• This unit is not intended to function as part of a system providing the sole means of fault
protection - good engineering practice dictates that any critical function be protected by at
least two independent and diverse means.
In normal use, little maintenance is needed. As appropriate for service conditions, isolate
electrical power, inspect the unit and remove any dust or other foreign material present.
Periodically check all connections for freedom from corrosion and screw tightness, particularly if
vibration is present.
The front of the case should be wiped with a dry cloth only. Use minimal pressure, especially
over the viewing window area. If necessary wipe the rear case with a dry cloth. If a cleaning
agent is necessary, isopropyl alcohol is the only recommended agent and should be used
sparingly. Water should not be used. If the rear case exterior or terminals should accidentally be
contaminated with water, the unit must be thoroughly dried before further service. Should it be
suspected that water might have entered the unit, factory inspection and refurbishment is
recommended.
In the unlikely event of a repair being necessary, it is recommended that the unit be returned to
the factory or nearest Crompton service centre.