COBHAM 251 User Manual

EQUIPMENT MANUAL 251-16-1
251/251-16-1
Page 15
Table 2. Environmental Qualification Form (continued)
TYPE/MODEL/PART NO.: Model 251-[ ]
CONDITIONS
DO-160C
SECTION/
PARAGRAPH
DESCRIPTION OF CONDUCTED TESTS
Fungus resistance 13.0 Equipment identified as Category X, no test
required.
Salt spray 14.0 Equipment identified as Category X, no test
required.
Magnetic effect 15.0 Equipment is Class Z.
Power input 16.0
Equipment qualified to Categories B and Z.
Voltage spike 17.0 Qualified to Category A.
Audio frequency conducted
susceptibility
18.0 Qualified to Category A.
Induced signal susceptibility 19.0 Qualified to Category A.
Radio frequency susceptibility 20.0 Qualified to Category T.
Emission of radio frequency energy 21.0 Qualified to Category Z.
Lightning induced transient
susceptibility
22.0 Qualified to Category XXC2.
Lightning direct effects 23.0 Equipment identified as Category X, no test
required.
Icing 24.0 Equipment identified as Category X, no test
required.
Other Tests: Acceptance tests in accordance with dB Systems’ Acceptance Test Procedure 251-4 and
performance tests in accordance with RTCA Document DO-214, Section 2.8 were conducted on the Model 251
qualification test unit.
Remarks: Model 251-[ ] was qualified to the environmental test requirements of RTCA DO-160C by similarity to
Models 250-[ ] and 700-[ ].
For Model 250-[ ]:
-Tests of DO-160C, Sections 4.0 (paragraphs 4.5.1, 4.5.2, & 4.5.3), 5.0, 16.0, and 18.0 were conducted at
dB Systems, Inc. in Redmond, Washington.
-Tests of DO-160C, Sections 4.0 (paragraphs 4.6.2 & 4.6.3) and 20.0 (radiated susc.) were conducted at
Sundstrand Data Control Inc. in Redmond, Washington.
-Tests of DO-160C, Sections 4.0 (paragraph 4.6.1), 7.0, 8.0, 15.0, 17.0, 19.0, 20.0 (conducted susc.), 21.0,
and 22.0 were conducted at Eldec Corporation in Lynnwood, Washington.
For Model 700-[ ]:
-Tests of DO-160C, Sections 4.0 (paragraphs 4.5.1, 4.5.2 & 4.5.3), 5.0, 16.0 (except subparagraph 16.5.2.3 b),
and 18.0 were conducted at dB Systems, Inc. in Redmond, Washington.
-Tests of DO-160C, Sections 4.0 (paragraphs 4.6.1, 4.6.2 & 4.6.3), 7.0, 8.0, 15.0, 16.0 (subparagraph 16.5.2.3b),
17.0, 19.0, 20.0, 21.0 and 22.0 were conducted at Sundstrand Data Control, Inc. in Redmond, Washington.
- Tests of DO-160C, Section 6.0, were conducted at Eldec Corporation and meet requirements based on
similarity to Models 207 and 407.

COBHAM 251 Specifications

General

Brand	COBHAM
Model	251
Category	Amplifier
Language	English