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4 · 12 · 2008

Convection Cooled ATR Spec

Design Aids
DESIGN INTEGRITY
USEFUL DESIGN DATA
Convection Cooled ATR Spec
Conduction Cooled ATR Spec
Standard ATR Dimensions
Typical ATR Weights
Mechanical Fragility Factors
Pressure/Temp Variations
Another Chart/Diagram
PROBLEM SOLVING INNOVATIONS










 
The majority of Elma-Mektron’s system enclosures are destined for operation in a wide variety of extreme environmental conditions and can be designed to meet the majority of military specifications for land mobile, seagoing and airborne ATR applications.

Listed below are typical specifications for Elma-Mektron convection cooled ATR enclosures.

 CONVECTION COOLED ATR ENCLOSURES
Properties Limits Appropriate Standards
Operating Temperature –40°C to +85°C MIL-STD-810E
Storage Temperature –40°C to +85°C
EMC With MIL-C-38999 connectors fitted MIL-STD-461D
DEF.STAN 59-41
BS3G100
TEMPEST
Power Inputs 28V DC
115V / 400 Hz Single-Phase
115V / 400 Hz Three-Phase
MIL-STD-704A and -704E
MIL-STD-1275A
DEF.STAN 61-5 (Naval)
MIL-STD-1399 (Naval)
EN50155 / RIA12 (Railway)
Wiring Limited Toxicity MIL-C-24643
DEF.STAN 61-12 Part 18
DEF.STAN 66-31
Mechanical –40°C to +85°C Arinc 404A
IP Rating With MIL-C-38999 connectors fitted Direct cooling up to IP65
Indirect cooling up to IP53
Vibration 15 to 2,000 Hz at 0.1g2 / Hz (RMS ~ 12g) MIL-STD-810E
Method 514.4 Category 5
MIL-STD-167
DEF.STAN 66-31
Shock 20g for 11mS MIL-STD-810E
Method 516.4 Proc I & VI
Acceleration 13.5g MIL-STD-810E
Method 513.4 Proc I & II
Altitude 10,000 ft standard chassis
50,000 ft with high altitude fan
MIL-STD-810E
Humidity Up to 95% RH MIL-STD-810E
Method 507.3 Procedure III
Salt Fog 5% for 48 Hours MIL-STD-810E
Method 509.3
Fungal Growth No Growth MIL-STD-810E
Method 508.4
Thermal Shock Rapid change over Storage & Operational Temperature range MIL-STD-810E
Method 503.3 Procedure I
Sand & Dust Sand @ 95 ft /sec (29m/sec)
Dust @ 29 ft /sec (8.9m/sec)
MIL-STD-810E
Method dependant on filter material
Epoxy Paint Finish Resistant to contaminants MIL-C-22750F
DTD-5555A


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