19.10
Environmental conditions and tests
Table 567:
Environmental conditions
Description
Value
Operating temperature range
-25...+55ºC (continuous)
Short-time service temperature range
-40...+70ºC (<16h)
Note: Degradation in MTBF and HMI performance
outside the temperature range of -25...+55ºC
Relative humidity
<93%, non-condensing
Atmospheric pressure
86...106 kPa
Altitude
up to 2000 m
Transport and storage temperature range
-40...+85ºC
Table 568:
Environmental tests
Description
Type test value
Reference
Cold tests
operation
storage
96 h at -25ºC
16 h at -40ºC
96 h at -40ºC
IEC 60068-2-1/ANSI
C37.90-2005 (chapter 4)
Dry heat tests
operation
storage
16 h at +70ºC
96 h at +85ºC
IEC 60068-2-2/ANSI
C37.90-2005 (chapter 4)
Damp heat tests
steady state
cyclic
240 h at +40ºC
humidity 93%
6 cycles at +25 to +55ºC
humidity 93...95%
IEC 60068-2-78
IEC 60068-2-30
Section 19
1MRK 502 048-UEN A
Technical data
678
Technical manual
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