Installation Procedures
2.1 Preparing the Site
2.1.6 Temperature, Humidity, and Altitude Ranges
Table 2–1 gives the operating, nonoperating, and storage ranges for the
temperature, humidity, and altitude for BA42B Enclosure systems.
Table 2–1 Temperature, Humidity, and Altitude Ranges
Parameter
Operating Range
1
Nonoperating Range
Storage Range
Temperature
10°C to 40°C
–40°C to 66°C
5°C to 50°C
(50°F to 104°F)
(–40°F to 151°F)
(41°F to 122°F)
Relative
humidity
2
10% to 90%
10% to 95%
2
10% to 95%
Altitude
2400 m maximum
4900 m maximum
(8000 ft maximum)
(16 000 ft maximum)
Rate of change
of temperature
11°C per hour
maximum
(20°F per hour
maximum)
1
For operation above sea level, decrease the operating temperature by 1.8°C per 1000 m (or 1°F
per 1000 ft).
2
At a temperature of 66°C.
2.1.7 Electrical Requirements
The power source to which the system connects must be capable of providing
power to the system unit and any other additional equipment, such as local
terminals and expansion boxes. Digital™ recommends that each system
operates in a dedicated power circuit. Additional power equipment may
be required to avoid power interruptions. Table 2–2 lists the electrical
requirements of systems in BA42B Enclosures. The power supply in the
system is autosensing. You do not have to select the input voltage.
2–4 Installation Procedures
