If the main fuse blows then the system should be checked for any reasons. The
fuse should be replaced by a fuse with the same rating. The rating is stated on
the system label in the rear of the cabinet.
The time & date onboard PCB lithium battery is only used when the system is
left un-powered; in this state that battery has a life of approximately 5 years.
The battery should be visually checked once a year and all power removed
from the system to ensure that system retains the time & date. If the system
does not retain the time and date the battery should be replaced with a new
Lithium cell type CR1216.
All electrical connections should be checked to ensure that the insulation is in
place and there is no risk of shorting or becoming disconnected.
It is also recommended that any firmware update release notes be checked for
any additional updates that may improve the security of the system.
Check all physical mountings are intact. Any broken mountings should be
replaced with the same parts.
21.15 Maintenance Smart PSU
The system should be serviced in accordance with the service schedule that is in
place. The only replaceable parts on the Smart PSU are the mains fuse and
standby battery.
It is recommended that during a service the following be checked:
The controller Event Log to check if any standby battery tests have failed since
last service – if standby battery tests have failed then the standby battery
should be checked.
The standby battery should be replaced as per the servicing schedule to
ensure that it has sufficient capacity to hold the system up for the time defined
in the system design. The battery should be physically inspected for any
deformation of the casing or any sign of leakage; if any of these conditions
exist the battery should be immediately replaced.
Check the LEDs on the PSU control board are in the expected state. See
Smart PSU document for LED details.
If the main fuse blows then the system should be checked for any reasons. The
fuse should be replaced by a fuse with the same rating. The rating is stated on
the system label in the rear of the cabinet.
All electrical connections should be checked to ensure that the insulation is in
place and there is no risk of shorting or becoming disconnected.
It is also recommended that any firmware update release notes be checked for
any additional updates that may improve the security of the system.
Check all physical mountings are intact. Any broken mountings should be
replaced with the same parts.
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