5. Export of USB temperature data
the data of the current and the last months will be generated and imported
will buzz once, the screen will display "End" and return to normal display after
6s.
Alarm Description
S/N Alarm
codes
Meaning
Triggering conditions
1
H1
Alarm for high temperature
inside the ULT freezer
An audible and visual alarm is given when the temperature
inside the ULT freezer exceeds the alarm threshold for excessive
temperature.
2
L1
Alarm for low temperature
inside the ULT freezer
An audible and visual alarm is given when the temperature inside
the ULT freezer exceeds the alarm threshold for too low tempera-
ture.
3
H2
Alarm for high ambient
temperature
Ambient temperature is above 36°C
4
H3
Alarm for high condenser
temperature
-
denser fan fails
5
Do
Door opening alarm
The outer door is opened for more than one minute
6
PF
Power-off alarm
Equipment loses power
7
bL
Low battery alarm
The battery capacity is too low or the battery warning switch is
8
E1~E4
Alarm for sensor fault The temperature sensor, ambient temperature sensor or con-
denser sensor in the ULT freezer fails.
9
Er
USB data recorder fault
alarm
When the recorder is not shielded, the digital tube displays Er
when the recorder is not connected;
10
Pr
11
LoF
Recorder not started
In the unlock status of the keypad and when the recorder is not
You can press the "Setting/ Mute Multi-function Key" and "Up"
key for 3 seconds at the same time and the screen will stop
displaying "LoF".
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