Leviton 3300 series, Инструкция по установке и эксплуатации, Страница: 27 / 48

5 Real Time Clock (RTC) Battery Replacement
20
Table 5: Battery Life Estimates
If the battery depletes and no power is connected to the meter the RTC resets to 01/01/00 00:00:00
when power returns. The battery backup is a standard CR2025 lithium coin cell, rated at 3V and
165 mAh. The lifetime of the battery depends on the operating temperature of the meter, as shown
in Table 5.
Since minimal current is drawn from the battery when the meter in powered on, most batteries do
not need replaced over the lifetime of the meter. If a situation occurs in which the meter will be
powered off for a prolonged period, battery life will be significantly reduced. In the event that the
battery needs to be replaced while the meter is still in operation, please contact Meter Support.
WARNING: TO AVOID FIRE, SHOCK OR DEATH , turn off all power supplying equipment before
working on or inside the equipment. Use a properly rated voltage sensing device to confirm
power is off.
Operating
Temperature (°C)
Estimated Battery Life
(No external power) (Years)
Estimated Battery Life
(90% power uptime) (Years)
Temp < 25 3 19
25 < Temp < 60 2 12
Temp > 60 1 9
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