LABBOX KJD20, User Manual, Page: 10 / 21

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2. Operation Panel:
Fig. 5
1. Easy -touch keypad and keys with protective film.
2. Environmentally friendly LCD with blue background light.
3. Heating indicator, which can be on or off according to the distillation process.
4. Warning indicator, which is on when there is any malfunction in the system or any necessary factor is
missed in the distillation stage. Attention: in the warning condition, warning words are showed on the
screen and the warning sound goes off at the same time.
5. Power light, which can indicate the state of power supply and is on when the instrument is turned on.
3. Functions of the Keys:
Number key: For the input of parameters.
【 Stop 】 key: Press the key in case of any need to stop during heating or distillation, the experiment
will stop and the instrument will return to the initial interface.
【 Auto 】 key: Press the key to Enter the interface for automatic test parameter modification when the
instrument is under the initial interface or test selection interface.
【 Manual 】 key: Press the key to Enter the interface for manual test when the Kjeldahl Distillation Unit
is under the initial interface or test selection interface. The instrument will get started and enter the
main interface, including test, maintenance and help.
【 Enter 】 key: Press the key for next interface.
【 Back 】 key: Press the key for the previous interface.
【 Up 】 , 【 Down 】 , 【 Left 】 , 【 Right 】 key: Press these keys for input of parameter or option selection.
Attention: Check the solution in the jar for boric acid, alkali liquor and distilled water first to see
whether they are sufficient for use prior to starting the Kjeldahl Distillation Unit. Add the
formulated solution in time if they are not sufficient, otherwise, it could cause inexact distillation
results or system malfunctions.