OPERATING INSTRUCTIONS
Immunity to Environmental Conditions
Mechanical and climatic stress
Temperatures
Temperature specifications, valid for an air pressure of 800
–
1200 hPa (800
–
1200 mbar)
Reliability
MTBF
Ratings at specified
case temperature
Model
Ground
benign 40 °C
Ground fixed 40 °C 70 °C
Ground
mobile 50 °C
Unit
MTBF acc. to
CPA250
279 000
57 000
31 000
33 000
h
MIL-HDBK-217F, notice 2
CPA500
195 000
35 000
17 000
16 000
h
Page 10
www.schroff.biz
