SATEC PM180 Installation Manual - Manual (Page 23)

PM180 Substation Automation Unit 20
Chapter 4 Installing the Battery
4. Changing the Battery
The PM180 is packed without battery; therefore it must be installed by the
installer during the PM180 installation.
After turning "ON" the PM180 power supply for the first time following
battery installation, the PM180 initialization process duration may take
about 7 minutes, while regular PM180 initialization process duration takes
40 seconds
IMPORTANT
Use CR1225 lithium 3.0 volt battery.
The battery can be replaced or installed in any powered PM180 condition while operating or not; if PM180
Power Supply is turned "OFF" the battery can be replaced/installed in the coming 30 minutes without
loosing any data. The data may be uploaded and restored in a PC using PAS (see PM180 Operation
Manual, Chapter 12) to avoid loosing data.
When the battery level drops below the minimum allowed threshold, the "BATTERY LOW" flag is set and an
event is generated in the "Event Log" memory, indicating that the battery should be replaced. Use the
following procedure:
1. Use a flat screwdriver to pull the battery holder
out from the CPU Panel. 2. Pull the battery from the battery holder
3. Insert the new battery with the correct polarity 4. Insert the battery holder with the new battery in
the CPU panel battery compartment
5. Push the battery holder until a click is heard