Installation Guide

ECN 7000 Series Hardware Guide 57
Category Rating
Clock
Real-time clock accurate to better than ±1 minute per
month; corrected by System Software. Maintained by
backup battery.
Environmental Rating Specifications
Table 6 summarizes the environmental rating specifications for ECN 7650
devices.
Table 6. Environmental Rating Specifications
Category Rating
Operating Temperature Range
–40 °C to +70 °C (–40 °F to +158 °F)
Certain options (for example, radios) could have additional
limits.
ANSI C12.1 2008 4.7.3.16 168 hrs –40 °C to +70 °C
Storage Temperature Range
–40 °C to +85 °C –40 °F to +185 °F)
ANSI C12.1 2008 4.7.3.15 168hrs –40 °C to +85 °C
Effective Relative Humidity
0% to 95%, non-condensing
As per ANSI C12.1 2008
ANSI C12.1 2008 4.7.3.22 in accordance with ASTM G155
Weather Simulation Test ANSI C12.1 2008 4.7.3.22 in accordance with ASTM G155
Salt Spray Test ANSI C12.1 2008 4.7.3.23 in accordance with ASTM B117
Raintightness
NEMA 4 and ANSI C12.1 2008 4.7.3.24 in accordance with
UL 50 E
Solar Radiation As per ANSI C12.1 2008
Salt Fog As per ANSI C12.1 2008
Mechanical Specifications
Table 7 on page 58 summarizes the mechanical specifications for ECN 7650
devices.