Maintenance; No Special Tools Required; Legend Plate Removal; Film Legend Engraving - Eaton CROUSE-HINDS Series Instruction Manual

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10

MAINTENANCE

Installation, configuration and maintenance of this annunciator must only
Power supplies using high voltage AC/DC primary sources and optional
high voltage field contact voltages may be present.
Ensure that the annunciator is powered down before working on the unit

10 .1 No Special Tools Required

All maintenance is achieved from the front of the annunciator without the use of special
tools. For Alarm Card or Supply/Pushbutton/Relay Card replacement or to change the mode of
operation, only the front legend plate needs to be removed.

10 .2 Legend Plate Removal

The legend plate is easily removed by undoing the associated fixing screws to reveal the plug in
Alarm Cards and Supply/Pushbutton/Relay Card.

10 .3 Film Legend Engraving

Film legends are accessed from the side of the legend plate and simply slide in place between
the two layers used within the plate.

10 .4 Alarm Card or SPR Card Removal

In the event of alarm card or SPR card failure or to change feature settings, the associated cards
are easily removed for repair or configuration by simply pulling on the card edge to remove it
from the associated edge connector. Replacement is the reverse of removal, note that care
must be exercised when replacing the board to ensure that the card is properly located into the
card guide runners before firmly pressing the module into the associated edge connector.
• Alarm Cards are designed to allow insertion and removal with power applied
• SPR Cards please note due to the high voltages present on the primary supply of the
SPR module it is recommended that the power is isolated before the SPR is removed
or inserted.

10 .5 Super-Bright LED's

To obtain a virtually maintenance free alarm system the UC625 annunciator is fitted with super-
bright LED's. These LED's can be supplied in different colours to suit alarm priorities if notified at
time of order. Colours available are red, amber, yellow, white and green.
WARNING !
be performed by competent service personnel
WARNING !
or any connected apparatus.
INM UC625 rev 24