Safety Information
Caution Before undertaking any troubleshooting, maintenance, or exploratory
procedure, carefully read the following caution notices.
Caution Protection may be impaired if equipment is not used in the manner
specified.
This equipment contains voltage hazardous to human life and safety, and is capable of
inflicting personal injury.
• Chassis Grounding—The chassis requires a connection from the premise wire safety
ground to the chassis ground. The earth safety ground must be connected during use of
this equipment to minimize shock hazards. Refer to the Connecting Safety Ground section
for instructions on connecting safety ground.
• Live Circuits—Operating personnel and service personnel must not remove protective
covers when operating or servicing the chassis. Adjustments and service to internal
components must be undertaken by qualified service technicians. During service of this
product, the mains connector to the premise wiring must be disconnected. Dangerous
voltages may be present under certain conditions; use extreme caution.
• Explosive Atmosphere—Do not operate the chassis in conditions where flammable gases
are present. Under such conditions, this equipment is unsafe and may ignite the gases or
gas fumes.
• Part Replacement—Only service this equipment with parts that are exact replacements,
both electrically and mechanically. Contact National Instruments for replacement part
information. Installation of parts with those that are not direct replacements may cause
harm to personnel operating the chassis. Furthermore, damage or fire may occur if
replacement parts are unsuitable.
• Modification—Do not modify any part of the chassis from its original condition.
Unsuitable modifications may result in safety hazards.
Chassis Cooling Considerations
The PXIe-1092 chassis is designed to operate on a bench or in an instrument rack. You must
adhere to the cooling clearances as outlined in the following section.
Providing Adequate Clearance
The module and power supply exhaust vents for the PXIe-1092 are on the top of the chassis.
The module intake vents are on the rear of the chassis. There are also intake and exhaust vents
located along the sides of the chassis.
Adequate clearance between the chassis and surrounding equipment, heat generating devices,
and air flow blockages must be maintained to ensure proper cooling. Minimum cooling
clearances are shown in the following figure. For rack mount applications adequate forced air
PXIe-1092 User Guide | © National Instruments | 13
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