8
5
Powering On the System
1. Connect to the power supply.
Check that the cable between the DC power supply and the SmartLogger is correctly
connected. Then, turn on the upstream power switch of the DC power supply.
2. Observe the LED indicators to check the running status of the SmartLogger.
Indicator Status Meaning
Running
indicator
(RUN)
Green off The SmartLogger is not powered on.
Blinking green slowly (on for 1s
and then off for 1s)
The communication between the
SmartLogger and the management
system is normal.
Blinking green fast (on for 0.125s
and then off for 0.125s)
The communication between the
SmartLogger and the management
system is interrupted.
Alarm/
Maintenance
indicator
(ALM)
Alarm status
Red off No system alarm is generated.
Blinking red
slowly (on for 1s
and then off for
4s)
The system generates a warning
alarm.
Blinking red fast
(on for 0.5s and
then off for 0.5s)
The system generates a minor
alarm.
Steady red The system generates a major alarm.
Maintenance
status
Green off No local maintenance is in progress.
Blinking green
slowly (on for 1s
and then off for
1s)
Local maintenance is in progress.
Blinking green
fast (on for 0.125s
and then off for
0.125s)
Local maintenance failed or the
SmartLogger is waiting to connect to
the app.
Steady green Local maintenance is successful.
4G indicator
(4G)
Green off
The 4G/3G/2G networking function
is not enabled.
Blinking green slowly (on for 1s
and then off for 1s)
The 4G/3G/2G dialup is successful.
Blinking green fast (on for 0.125s
and then off for 0.125s)
The 4G/3G/2G network is not
connected or the communication is
interrupted.
If an alarm and local maintenance occur concurrently, the alarm/maintenance indicator shows
the local maintenance state first. After local maintenance is complete, the indicator shows the
alarm state.
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