Chapter 6 ____________________________________________________________Maintenance
VAISALA
_______________________________________________________________________ 49
- Fasten the attachment screws.
- Connect the cables.
CAUTION
Do not damage the EMC strips in the front panel of the unit or in the
adjacent front/blank panel when pulling out or pushing in a unit.
Move the unit slowly in card guides and avoid bending.
Checking the Operation of Cooling Fans
A rough check can be done by switching the SPS311 on/off and
observing the audible noise of the fans when power is on.
A full check can be done by removing all plug-in units except
MWP312 and connecting the SPS311 to 24 VDC power system using
the 24V DC input in the connector panel. The fan operation is then
checked by observing the air flow in the open slots.
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