SHURE Incorporated Web Address: http://www.shure.com
5800 W. Touhy Avenue, Niles, IL 60714-4608, U.S.A.
In U.S.A., Phone: 1-847-600-2000 Fax: 1-847-600-1212
In Europe, Phone: 49-7131-72140 Fax: 49-7131-721414
In Asia, Phone: 1-852-2893-4290 Fax: 1-852-2893-4055
International Fax: 1-847-600-6446
ENVIRONMENTAL QUALIFICATION FORM, TSO-C58a
DO-214
PARA. #
CONDITIONS
DO-160C
PARA. #
DESCRIPTION OF TESTS
2.5.1.1
Ground Survival Low Temperature
and Operating Low Temperature
4.5.1
Microphone tested to Category D1
2.5.1.2
Ground Survival High
Temperature and Short-Time
Operating High Temperature
4.5.2
Microphone tested to Category D1
2.5.1.3
Operating High Temperature
4.5.3
Microphone tested to Category D1
2.5.1.4
Altitude
4.6.1
Microphone tested at altitude equivalent to 15,200 m
(50,000 ft) = 11.6 kPa (116 mbar, 87 mm [3.42 in.] Hg)
2.5.1.5
Decompression
4.6.2
Microphone tested at altitude equivalent to 15,200 m
(50,000 ft)
2.5.1.6
Overpressure
4.6.3
Microphone tested at pressure = 170 kPa; equivalent
altitude = –15,000 ft
2.5.2
Temperature Variation –
Preamplifier
5.3
Microphone tested to Category B for two cycles.
2.5.3
Humidity
6.3.1
Microphone tested to Category A for 2 cycles.
2.5.5
Vibration
8.5
Microphone tested to Categories N, B, & M (Table 8-1,
Not on Vibration Isolators)**
2.5.6
Magnetic Effect
15.3
Microphone tested to Equipment Class Z; no
magnetic properties
2.5.8.1
Voltage Spike Conducted
17.3
Microphone tested to Category A
2.5.10
Induced Signal Susceptibility*
19.3
Microphone tested to Category Z
2.5.11
Radiated RF Susceptibility*†
20.5
†
Microphone tested to Category A
2.5.12
Emission of RF Energy*
21.4
Microphone tested to Category Z
2.5.14
Final Distortion
After all required environmental tests microphone
meets requirements of DO-214, 2.6.2.4
2.5.15
Push-To-Talk Switch Life
After all required environmental tests microphone
meets requirements of DO-214, 2.6.2.9
Fire Retardance
In accordance with FAR 25; 25.869(a)(4) and
Appendix F, Part I (a)(3)(b)***
* Tests performed at Radiometrics Midwest Corporation,
Lombard, IL
†
Tested to DO-160B
**Tests performed at Elite Electronic Engineering,
Downers Grove, IL
***Tests performed at Gaynes Test Laboratories, Chicago, IL
All other tests performed at Shure Incorporated, Evanston, IL
