Cooling, Safety, Table a-3. cooling specifications – National Instruments PXI PXITM -1000 User Manual

Page 31: Table a-4. safety specifications, Table a-3, Table a-4, Cooling safety

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Appendix A

Specifications

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National Instruments Corporation

A-3

PXI-1000 User Manual

Cooling

Safety

Table A-3. Cooling Specifications

Characteristic

Description

Per Slot Cooling Capacity

Slot cooling capacity in worst-case slot
is 20 W with fan speed set to HI

Module Cooling System

Forced air circulation (positive
pressurization) via two 60 cfm fans with
HI/LO speed selector

Slot Airflow Direction

P1 to P2, bottom of module to top of
module

Module Cooling Intake

Bottom rear of mainframe

Module Cooling Exhaust

Along both sides of mainframe

Power Supply Cooling
System

Forced air circulation via integrated fan

Power Supply Cooling
Intake

Rear of mainframe

Power Supply Cooling
Exhaust

Along both sides of mainframe rear and
upper rear panel

Module Cooling Fan
MTBF

40,000+ hr

Power Supply/Fan Unit

Replacement in under 5 minutes

Table A-4. Safety Specifications

Characteristic

Description

Safety Characteristics

UL 3111-1, IEC 1010-1, CSA 22.2
No. 1010.1
Installation Category II
Pollution Degree 2
Safety Class 1

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