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4.3 Cautions before use：
ØRemove all package components (include the protection foam inside the package)
Caution: Do not put the packing plastic bag within reach of children as suffocation may result。
ØCheck the device, accessories and document with the device as per list of packing
ØClean：make a clean of the device before use it.
ØDo not turn on the freezer at once when the freezer is well located, must wait 24 hours for the
first start.
4.5 Standing
Operate as follows for the first start：
1. Connect the power cord to the appropriate socket during no-loading.
2. Turning on the power-lock at the right-side of the bottom. (If a back-up cooling system is
installed with, turn off its power at first ).
3. Set the desired temperature point between -10°C to -86°C, for the best performance of the
machine, when the user need to set the temperature below -80°C, should set the temperature
at -80°C at first, once the temperature of the freezer come down to -80°C, keep it work stable
at -80°C, after 3.5 hours, set the temperature below -80°C as desired. Factory setting at -80℃.
4. The high temperature alarm will be activated when the power is on. That's a normal
phenomenon. Once the temperature come down to the set point, the alarm will be closed. The
alarm buzzer voice could be eliminated by touch the MUTE button.
5. Articles could be stored inside the freezer after a 24-hour normal running. (Make batch
treatment to store articles, each time do not over a third, after 12 hours of normal running, then
store another a third .)
6. Do not open the door during the cooling process, will cause the temperature rise.
7. For back up cooling system, if installed, do not open it when the freezer is working properly.
When the freezer is failure, could turn on the system to keep the inside temperature at a proper
value.
4.6 First initial starting
ØThere must be an authorized person responsible for the freezer in customer's office, to
check the operation status and make daily record. The inside temperature of cabinet will rise
up during the failure problem, if it is not available to be repaired in a short time, take out the
stored items and transfer to other safe locations.
ØPrior to put the articles inside the freezer, should check if the temperature set range of this
device is matching the requirement of the articles.
ØDue to the Inertia of refrigeration, there is a little difference between the actual temperature
displayed on the controller and the set temperature. This is a normal phenomenon.
ØMeiling's ultra low temperature freezers are storage devices, do not put excess "hot"
samples into the freezers at one time, or will cause compressor damage after long time
working without stop. Attention to put in samples and set temperatures in batches.
ØDo not put electric devices in the freezers without permission.
ØDo not change the setting temperature frequently within a short time, or the current
temperature may not reach the setting temperature as the inertance; Do not cover sensors
in the freezer when you put in samples and keep some distances between the samples and
the inner side of the freezer to make sure the cold air will circulate successfully in the
freezer, or will cause the instability of the inner temperature and inaccuracy of the display
temperature.
CAUTION.
ØPlease use the wrench to rotate the supporting feet clockwise to extend them, so that it rests
on the ground. Make sure the freezer does not move when using.
4.4 Adjust the supporting Stand bar
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h. USB data (optional)
Automatic export: When the USB flash drive is connected to the USB interface, the buzzer
will beep once after the data transfer is completed, the upper room displays "Usb", and the
lower room displays "on". The U disk generates the PDF of the current month and the
previous month. After the data transmission is completed, the buzzer will beep once, "End"
will be displayed, and the normal display will be restored after 6 seconds
Note: when the data is small, the digital tube will not display "Usb", "on" and "End".
Manually export: If the button is under locked state, after connecting U disk well and
buzzer alarm for one time, press upper button for 3 seconds, digital tube display “d01”,
Press the up button or down button to adjust “d00~d12”, press , The U disk internally
generates a PDF file that generates this file (d00) or generates the data recorded in the
previous month (1-12).
Note: When the digital tube alarm flashes "LoF", the recorder does not start; press the
and for 3 seconds, "LoF" disappears and the recorder starts.
（2） Function settings
a. Power on, open the power switch on the back of the cabient, the machine can enter the
working state;
b. User parameter settings:
Unlock: In the normal running state, press the key and for 3 seconds at the same
time, the upper room digital tube will display the parameter code "PS1", the lower room
digital tube will display the parameter code "0000", press the and input the password
"0005" (enter the user menu password, enter "0099" to restore the key lock password to the
default "0005"), Unlock at this time. Press the key for 3 seconds after unlocking, the
digital tube displays the parameter code "PS1" and enters the setting adjustment.
①Use to scroll through the parameters. The display order is b1-b2-Set1-H01-L01-
Set2-H02-L02-n-y-r-S-F-Pt-tH1-P1-PS1.
② Use and to increase or decrease the value;
③ Press to temporarily store the modified value and return to the display parameter;
④ If you modify other parameters, please repeat steps 1~3.
⑤ Press for more than 3 seconds to store the modified parameters and return to the
display parameters interface.
c. Press for more than 3 seconds, or no button is pressed within 60 seconds, the
parameter setting will be exited.
d. Parameter display
1 b1 －－ 3.0 Hardware Version
2 b2 －－ 4.1 Software Version
3 Set1 YL:-10~-25 YL:-25 Temperature setting for upper chamber
4 H01 0.0~10.0 5.0 High temperature alarm setting value is set+H,
and when H is equal to 0, the alarm is canceled.
When the temperature is too high, the high
temperature alarm shows H01.
FL:-10~-40 FL:-40
