General Technical Specifications 
  6.5 Mechanical and Climatic Environmental Conditions 
ET 200S Distributed I/O System - Fail-Safe Modules 
Installation and Operating Manual, 08/2008, A5E00103686-07 
59 
Climatic Environmental Conditions 
ET 200S with fail-safe modules can be used under the following climatic environmental 
conditions: 
 
Environmental Conditions  Operating Range  Comments 
0 °C to 60 °C  For horizontal installation  Temperature 
0 °C to 40 °C  For vertical installation 
Temperature variation  10 K/h   
Relative humidity  15 % to 95 %  No condensation; corresponds to relative 
humidity (RH) stress level 2 in accordance 
with IEC 61131-2 
Air pressure  1080 hPa to 795 hPa  Corresponds to an altitude of -1000 m to 2000 
m 
 
SO
2
: < 0.5 ppm; 
relative humidity < 60%, no condensation 
H
2
S: < 0.1 ppm; 
relative humidity < 60%, no condensation 
Test: 
10 ppm; 4 days 
 
1 ppm; 4 days 
Pollutant concentration 
ISA-S71.04 severity level G1; G2; G3  —