User Manual Chapter 2

2-6 Chapter 2: Preparing the Installation Site
Environmental Requirements
DecisioNet components operate across a wide range of environmental
conditions as shown in the following tables. Do not install these
components in locations where the temperature or humidity may go
beyond the limits indicated.
Due to lower atmospheric pressure and air rarefaction at high
altitudes, the maximum dry bulb temperature for each working range
is decreased linearly by a value of 3.3 °C /1,000m (1.8 °F /1,000 ft.)
between the altitude of 500m (1,640 ft.) and 3,000 m (9,840 ft.).
Temperature and Humidity
The environmental requirements for the CBS and ESLs are shown in
the following tables.
CBS
Operating Transit (1 week maximum) Storage
Temperature
(Dry bulb)
5°C to 45°C
(40°F to 113°F)
-40°C to 60°C
(-40°F to 140°F)
-10°C to 50°C
(14°F to 122°F)
Max. Temp.
Change per Hour
10°C (18°F) 20°C (36°F) 15°C (27°F)
Relative Humidity 10% to 90%
No Condensation
5% to 95%
No Condensation
10% to 90%
No Condensation
Max. Humidity
Change per Hour
10% 10% 10%
Barometric
Pressure
105 to 70 kilo pascals
(up to a max. of 3,000
m [9,850 ft.])
105 to 70 kilo pascals
(up to a max. of 3,000
m [9,850 ft.])
105 to 70 kilo pascals
(up to a max. of 3,000
m [9,850 ft.])