dSPACE DS1103, Hardware Installation And Configuration Manual

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If you cannot fulfill the space requirement (as typically happens in a
rack-mount situation), and if you are not sure whether the ambient
temperature can be kept in the specified range while the dSPACE
system is running, take the following steps:
1. Measure the temperatures Ta and Tpsu of the output airstream of
the uninstalled box marked on the illustration below under
operating conditions.
Measurement condition: Measure the temperatures of the output
airstreams after executing a typical real-time application (for
example, a dSPACE demo application) on the hardware for at least
15 minutes.
Temperature sensors must be placed al least 20 mm above the
inlets.
Tpsu
Temperature
test point
Ta
Temperature
test point
2. Use the following formula:
Ta + dT
max
n
dT
max
= 50 °C (122 °F) - Ta
max
n
Ta
max
= Greatest expected ambient temperature
If the Tpsu temperature exceeds the sum of Ta + dT
max
, you must
take suitable measures to improve the rack installation (for
example, by using air ducts or external cooling devices) to lower
the temperature of the output airstream.
Measures in borderline
situations
s
dSPACE Expansion Boxes
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