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Display and Alarms
Supply power to the storage box and turn the power switch to "ON" position to enter into the startup
status. The display panel shall display the ambient temperature, set temperature and current voltage.
Working status of the display panel:
"Locked" indicator lamp is ON: It means that all settings are locked to avoid maloperation.
"Network" indicator lamp is ON: It means that the network system is in service.
"Running" indicator lamp is ON: It means that the low-temperature compressor is in service.
"Backup system" indicator lamp is ON: It means that the backup refrigeration system is in service.
Alarm:
Alarm
Status
Code Instruction
High
The current temperature ≥ the
temperature
set one for high-temperature
E00
alarm
alarm for 1 minute on end.
Low
The current temperature ≤ the
temperature
set one for low-temperature
E01
alarm
alarm for 1 minute on end.
Ambient
Ambient temperature ≥35℃
temperature
E02
（35℃ as default）
alarm
Failure of the main sensor in
E10
the box
Failure of the sensor for
E11
Probe failure
ambient temperature
Failure of the condensing
E12
sensor
The battery switch is off
E20
Reverse battery insertion（for
Low battery
E21
platinic acid battery)
Battery Low
E22
Power failure
Power failure of the storage
E30
alarm
box
More than 5 minutes of door
Door open
opening ( 5 minutes as
E40
alarm
default)
Hot
Failure of the condenser
E50
condenser
sensor
18
Buzzer
Remarks
The alarm lamp
The buzzer gives
The initial
flashes ON and OFF.
an alarm.
electrificatio
n is delayed
The alarm lamp
The buzzer gives
for 3 hours.
flashes ON and OFF.
an alarm.
The alarm lamp
-
-
flashes ON and OFF.
The alarm lamp
The buzzer gives
-
flashes ON and OFF.
an alarm.
-
The alarm lamp
The buzzer gives
flashes ON and OFF.
an alarm.
The alarm lamp
The buzzer gives
flashes ON and OFF.
an alarm.
The alarm lamp
The buzzer gives
-
flashes ON and OFF.
an alarm.
The alarm lamp
The buzzer gives
-
flashes ON and OFF.
an alarm.
The alarm lamp
-
-
flashes ON and OFF.
The alarm lamp
flashes on and off, the
The buzzer gives
display panel does not
-
an alarm.
work or works
alternatively.
The alarm lamp
The buzzer gives
-
flashes ON and OFF.
an alarm.
The alarm lamp
The buzzer gives
-
flashes ON and OFF.
an alarm.
Initially Powering Up
When the unit is started for the first time, please follow the procedures below.
① While keeping the unit empty, plug in the power
cord to a dedicated power socket that meets all
requirements.
② Please connect the freezer to the power supply,
turn on the power switch located on the right of the
freezer (as in the illustration on the right), and then
turn on the battery switch.
③ If the unit has a backup cooling system
(optional), turn off the backup system.
④ Set the unit to a desired temperature: Do not load the unit with any samples. Power up the unit to let it run
down to -60℃. Let it run at -60℃ for 8 hours then lower it to -80℃. Observe the unit performance for 24 hours for
normal cycling to ensure that it is working properly.
⑤ Once the unit is confirmed to be operating properly, it is ready to be loaded with samples. In principle, the
freezer unit should be set at about 3℃ above the desired temperature. For example, if the storage temperature
is -60℃，set the unit at -57℃. Load the unit with samples in batches of less than 1/3 of the unit's capacity .Make
sure that the unit is capable of cycling for more than 8 hours
⑥ If the unit has a backup cooling system (optional), turn it on.
11
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