Operating Condition 1 "Fan Failure - Raytheon Standard 22 Compact Operator's Manual

3.1.1

Operating condition 1 "Fan failure"

This condition is generated if the fan does not switch itself on as a result of the
temperature of the supporting liquid (it should switch on when the supporting liquid
reaches 51C).
Whether the fan is operational or not is registered from the fan's current consumption; it
therefore follows that the fan is defective if this condition is displayed.
To prevent overheating due to fan failure, it is recommended that you do the following:
Continue this until operating condition 1 stops.
It is essential that the fan be replaced at the earliest opportunity.
NOTE: A critical situation occurs, if the ambient temperature is extremely high
Edition: February 2015
Operator Manual
Compass Standard 22
and
Standard 22 Compact
-- Check whether the fan screen is covered and check to see that air can enter
the enclosure unhindered at the base.
-- If necessary cool the outer sphere using an external fan.
and condition 3 is displayed "Temperature of supporting liquid more than 60C".
Constant high temperature may effects to the life cycle of the gyro compass.
A higher temperature for a short moment has no importance.
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Compass
Standard 22
4102.DOC010102