17
16
Manual Data Printing (Reserved)
Manual: Under normal operation state, after unlocking, press and hold the down key
for 3s to enter the data print interface;
Select dt1~dt7 by pressing the up and down keys, and press and hold the SET key
for 3s to confirm the printing. Dt1~dt7 represents the current p
rinting time, which is
pushed forward for 1~7 days. If there is no key operation for 1
0s, the interface will exit
without saving.
Warehousing Mode
a. In the power-off operation state, after unlocking, press SET
key + key for more
than 3s at the same time, and the LCD display screen will display the parameter
code "PAS";
b. Press SET
key to enter password setting;
c. Scroll the number to "22" with
key and key;
d. Press the SET key to confirm the password. If the password is incorrect, the
warehousing mode setting program will exit;
e. If the password is correct, it will enter the warehousing mo
de and the power supply
of the temperature controller will be turned off;
f.
The above actions shall be completed during the buzzer alarm pe
riod (about 2
minutes) after power failure;
After entering the warehousing mode, the current consumption of the whole
temperature controller is lower than 5uA.
Alarm Description
Code
Cause
Action
Err
Data access fault
N/A
E01
Biomedical freezer
temperature sensor fault
The alarm symbol flashes; E01 is displayed; buzzer sounds
immediately; compressor is in proportional operation; remote
alarm is disconnected in mode C.
E02
Ambient temperature
sensor fault
The biomedical freezer temperature sensor fails in A mode;
there is no alarm in B mode and C mode;
AH
AH high temperature
alarm
AH and temperature are displayed alternately; the alarm
symbol flashes; the buzzer buzzes when A2 is exceeded; the
remote alarm is disconnected in mode C.
AL
AL low temperature alarm
AL and temperature are displayed alternately; the alarm symbol
flashes; the buzzer buzzes when A2 is exceeded; the remote
alarm is disconnected in mode C.
EHi
Sensor temperature
> 85°C
EHi and temperature are displayed alternately; the alarm
symbol flashes.
ELo
< -50°C
ELo and temperature are displayed alternately; the alarm
symbol flashes.
dor
Door open or not closed
The alarm symbol flashes; when
A3 is exceeded, dor and
temperature are displayed alternately and the buzzer buzzes;
the remote alarm is disconnected in mode C.
N/A
Ambient temperature ≥
35°C
The alarm symbol flashes; the biomedical freezer temperature
and ambient temperature are displayed alternately
.
N/A
Power-off
The alarm symbol is displayed; the buzzer sounds intermittently
for 2 min.; the temperature is displayed intermittently for 20 h.
Maintenance
W
ARNING
In order to prevent electric shock or injury, the power supply must be cut off before
any repair and maintenance of the equipment.
Make sure that drugs or suspended particles from the surrounding environment
will not be inhaled during equipment maintenance. Otherwise it may cause harm
to human health.
CAUTION
Do not spill water directly on the chamber body, so as not to cause the electrical
components insulation performance decline and metal parts rust.
Do not use hot water and corrosive cleaners or organic solvents to clean the
chamber body
.
Do not put heavy objects on top of the equipment to avoid deformation of the
equipment under pressure.
Cleaning of Biomedical Freezer
The biomedical freezer should be cleaned once a month. Regular cleaning keeps
the biomedical freezer a brand-new appearance.
Wipe the dust off the biomedical freezer's shell, inner chamber
, and all
accessories with a dry cloth. If the biomedical freezer is dirty
, wipe it with a
cleaning cloth soaked with a neutral detergent to remove the dirt and wipe off the
residual detergent with a wet cloth. Then, wipe it with a dry cloth again.
Do not pour water onto the biomedical freezer shell or into the biomedical freezer
.
Otherwise, it may damage the electrical insulation, leading to a failure.
The compressor and other mechanical parts are completely sealed and do not
require lubrication.
Clean the frost or ice on the inner wall and the condenser filter screen once a
month.