can reduce the maximum allowable ambient temperature and can affect the typical accuracy of
modules in the chassis.
Note
For more information about typical accuracy specifications for modules, visit
ni.com/info
and enter the Info Code
criotypical
.
Refer to the following sections of this document for more information about mounting the
chassis in these configurations. Refer to the following table for additional resources you can
use when you consider an appropriate mounting configuration for your application.
Table 1.
Additional Resources for Mounting Configurations
Consideration
Resource
How can different mounting configurations
cause temperature derating?
Visit
ni.com/info
and enter the Info
Code
criomounting
.
How can different mounting configurations
affect the accuracy of C Series modules?
Visit
ni.com/info
and enter the Info
Code
rdcriotemp
.
What do I need to know about mounting the
chassis in environments with high shock and
vibration?
Visit
ni.com/info
and enter the Info
Code
criomounting
.
Precautions to Take before Mounting the Chassis
Before you mount the chassis, ensure that you have taken the following precautions:
•
Record the serial number from the back of the chassis so that you can identify the
NI Condition Monitoring System in software. You cannot read the serial number after
you have mounted the chassis.
•
Ensure that the chassis does not contain any I/O modules.
Measuring the Ambient Temperature of the Chassis
Measure the ambient temperature at each side of the chassis, 63.5 mm (2.5 in.) from the side
and 25.4 mm (1 in.) forward from the rear of the chassis.
Accommodating Air Circulation and Cabling Clearance
Your installation must meet the following requirements for space and cabling clearance:
•
Allow 25.4 mm (1 in.) on the top and the bottom of the chassis for air circulation, as
shown in the following figure.
4
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ni.com
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Maintaining NI CMS-9024 Hardware for an NI InsightCM System
