Garmin GNS 480, Installation Manaul

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Appendix A - Certification Data
GNS 480 (CNX80) Installation Manual 560-0982-01 Rev L A-1
APPENDIX A - CERTIFICATION DATA
A.1 E
NVIRONMENTAL
Q
UALIFICATION
The GNS 480 has been tested to the following environmental categories per procedures defined in RTCA/DO-160D.
Tests were conducted from September 2002 to April 2003 using the original 1997 revision of DO-160D and
specification defined in PD3107.
Environmental Qualification Form
Nomenclature: GNS 480
Part No.:
430-6100-8xx-xxx
TSO No.: C34e, C36e, C37d, C38d, C40c, C113,
C128, C146a
Manufacturer:
Garmin AT
2345 Turner Road SE
Salem, Oregon 97302
Conditions Section Description of Conducted Tests
Temperature and Altitude 4
Equipment tested to Category C1 & A1
Operating temp: -20ºC to +55ºC
Short time high temp: to +70ºC
Ground survival temp: -55ºC to +85ºC
Altitude: 35,000 feet
Decompression: 55,000 feet [1]
Overpressure (non-operating)
No external cooling required provided internal fans are
unobstructed and operating. [2]
Temperature Variation 5
Equipment tested to Category C, 2
°
C/min
Humidity 6 Equipment tested to Category A, standard humidity environment
Operational Shocks and Crash Safety 7 Equipment tested for both operational and crash safety shocks to
Category B Type 5R
Equipment operated normally after crash shocks.
(20 Gs at 11 msec (impulse) and 3 sec (sustained))
Vibration 8 Equipment tested without shock mounts to Category S (Curves
B, M) and Category U (curves F, F1) [4]
Explosion Proofness 9 Equipment identified as Category X, no test required
Waterproofness 10 Equipment identified as Category X, no test required
Fluids Susceptibility 11 Equipment identified as Category X, no test required
Sand and Dust 12 Equipment identified as Category X, no test required
Fungus Resistance 13 Equipment identified as Category X, no test required
Salt Spray 14 Equipment identified as Category X, no test required
Magnetic Effect 15 Equipment is Class Z (Dc is at 0.185 meters)
Power Input 16 Equipment tested to Category B (14 and 28 VDC system) [3]
Voltage Spike 17 Equipment tested to Category A
Audio Frequency Conducted Susceptibility - Power
Inputs 18 Equipment tested to Categories A & B
Induced Signal Susceptibility 19 Equipment tested to Category C
Radio Frequency Susceptibility (Radiated and
Conducted) 20 Equipment tested to Category VV- (Category V Conducted,
Category V Radiated. No Pulsed test performed.)
Emission of Radio Frequency Energy 21 Equipment tested to Category M
Lightning Induced Transient Susceptibility 22 Equipment identified as Category A3 B2
Lightning Direct Effects 23 Equipment identified as Category X, no test required
Icing 24 Equipment identified as Category X, no test required
Electrostatic Discharge (ESD) 25 Equipment tested to Category A
Remarks:
[1] Operation at 55,000 feet verified for 30 minutes following decompression.
[2] Also passed Category P In Flight Loss of Cooling (180 min at +30
°
C) with internal fans not operating.
[3] Also passed Category A except power interrupt endurance is limited by software to 50 msec.
[4] Helicopter vibration tests performed with W
0
= 0.0392 g
2
/Hz for curve F and W
0
= 0.0785 g
2
/Hz for curve F1. These levels
create the DO-160D Figure 8-7 values of 2.97 and 4.20 grms respectively.
•
Passed the Thermal Shock test (+55C to -20C in < 20 sec) required by TSO C113 (per AS8034 paragraph 5.23).
•
Passed the Operating Overpressure test (170 kPa) required by TSO C113 (per AS8034 paragraph 5.2.5).
•
Passed GPS L1 Radiated Susceptibility test (20 mV/meter) required by TSO C146a (per DO-229C para 2.4.1.2.3).