Operation; Display; Start-Up - Honeywell OELD Operating Instructions Manual

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6 Operation

The start-up and self-test sequence of the OELD takes approximately 60 seconds. During this time the user can check that each

of the functions listed below are operating correctly as well as the OELD checking the correct operation of its critical circuits and

processes. The OELD will perform a series of functional tests, including:

• Display test – each segment of the LCD will be sequentially activated

• Backlight test – each of the colours of the backlight will be activated several times

• Internal hardware and memory checks

• Display of software version

• Display of user-configured settings such as gas name, range and alarm set points

Once the LCD and backlight tests have completed, the green backlight indication will be illuminated for the remainder of the start-up sequence.

Once the OELD has completed this start-up sequence, it will enter its normal operating condition.

OELD Operating Instructions

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