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KJD10 Kjeldahl Digestion System

Please read the User Manual carefully before use, and follow all operating and safety instructions!

user manual

english

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Summary of Contents for KJD10

Page 1: ...KJD10 Kjeldahl Digestion System Please read the User Manual carefully before use and follow all operating and safety instructions user manual english ...

Page 2: ...r maintenance In case of any faults do not try to repair it yourself If help is needed you can always contact your dealer or Labbox via www labbox com Please provide the customer care representative with the following information Serial number Description of problem Your contact information Warranty This instrument is warranted to be free from defects in materials and workmanship under normal use ...

Page 3: ...eet Wear the lab gown goggle and rubber gloves all the time Be care of hotreagents Warning Be aware of the risk of electric shock Only trained professionals are permitted to open the face panel or back cover Notes Please make sure that the water electricity and gas sources of the instrument are turned off after the experiment is completed Please operate according to the actual situation Notice 1 D...

Page 4: ...and large screen liquid crystal display The automated design allows safer easier faster and more reliable convenient operation making the digester ideal device for high temperature digestion Definition of digestion Digestion which is also called wet digestion is the decomposition of the organic matter or reducing substances in the sample by the addition of acid or alkaline liquid reagents with hea...

Page 5: ... can guarantee a consistentresult High accurate temperature sensor monitors and records the heating temperature The PID temperature controlling platform improves the accuracy and stability of the temperature Large LCD screen The acidic or alkaline gases generated in the experiment can be eliminated by the environmental friendly Scrubber KJDF1 which can be connected to the Kjeldahl Digestor Offers ...

Page 6: ...strument by choosing the heating type and the corresponding parameters The tubes rack will go down automatically after the input is confirmed Each tube will be inserted in the corresponding heating well in the graphite block The heating will automatically stop when the preset time is reached The tubes will rise automatically and the electronic fan will cool down the tubes When the temperature of t...

Page 7: ...wer supply 220 VAC 10 50Hz Power 3 6 KW Dimension 515mmX458mmX730mm Weight 40 kg 2 2 Use conditions Input voltage 220V 50Hz The device shall be installed at places adjacent to water source and drain tank and provided with power sockets Power supply should meet the requirements of the device to avoid electric over stress an independent switch safety device and reliable grounding are required The de...

Page 8: ...n duct and the seal cover with one to one correspondence and put Gas collection hood on the digestion duct stand See Fig 3 After completion of the digestion hold the grip on both ends of the test tube with hands and take it out along with the Gas collection hood then hang them on the cooling frame by the fixing leg on both ends of the test tube See Fig 4 Hold the grip on both ends of the Gas colle...

Page 9: ... is used to condensate and neutralize the acidic or alkali waste gas generated in the experiment Kjeldahl Digestor can reach the best effect with the KJDF1 Scrubber Fig 6 3 3 2 Direct connection with running water jet vacuum pump In addition to connection with the waste gas absorption system of KJDF1 Kjeldahl Digestor can also be connected to water jet vacuum pump for waste gas disposal The waste ...

Page 10: ...Operation 4 2 1 Introduction of the operation panel a Picture of the operation panel Fig 8 Operation panel Features Membrane keypads 5 6 inches True Color screen b Function of the Keys Stop If an emergent stop is needed due to operation error or system failure press this key to end heating and then the system returns to the former interface Enter Confirm the task or operation Back Return to the fo...

Page 11: ...nd liquid reagent into the tube put the tube into the digestion rack 2 Put the digestion rack on the device put the Scrubber in the right place and open condensate water valve 3 Time heating mode and PID parameters can be set up firstly If there is no need choose the saved heatingsolution 4 Linear heating for common samples and curve heating for bubbling samples 5 Digestion process will be done au...

Page 12: ...l be shown on the first page See Fig 9 Fig 9 4 2 3 2 Enter the main interface in 5 seconds include linear heating and curve heating as Fig 10 Fig 10 1 Linear heating Press Enter to enter the setup interface setting temperature and time and press Enter start heating and timing Fig 11 ...

Page 13: ...ng interface The system has automatic memory of the last setting Press Enter key for heating according to the curve set last time Fig 12 The interface comes as follows on completion of heating Fig 13 Heating is forced to stop press stop key when heating is on and the interface comes as follows Fig 14 ...

Page 14: ...ng module including system parameter setting and heating curve setting Fig 15 Press key for selection of system parameter setting or curve setting and press Enter key for setting interface 1 Setting for heating curve Fig 16 2 Setting for system parameters Fig 17 ...

Page 15: ... timely 5 1 2 Check the air pipelines valves and connectors regularly If air leakage or loose connection occur or any damaged or aging components are found replace them timely 5 1 3 Clean the Scrubber upper cover regularly once a week will be the best The specific cleaning steps 5 1 3 1 Feed about 100ml distilled water into the digestion tube 5 1 3 2 Put the digestion tube on the rack Set up the e...

Page 16: ... LCD screen does not work a The screen is damaged b The fuse is burnt Replace the fuses 5 Unrecognizable code on the screen The sensor is interfered or damaged Professionals to solve 6 Appendix 6 1 Common Acidic and Alkaline Liquid Reagents Acidic liquid system Nitric Sulphuric acid Nitric Perchloric acid Hydrofluoric acid and Peroxide etc These chemicals can completely destroy the organics and re...

Page 17: ... temperature at 380 and digest for 2h For sparging samples the curve heating mode is often used In this case the following parameters can be a reference 1 160 200 heating temperature between this interval 20min 2 260 300 heating temperature between this interval 25min 3 380 390 heating temperature between this interval 90min Different samples also require different parameters 7 5 The digestion rac...

Page 18: ...with training The operator must follow the instructions 8 2 2 Cautions in Operation 1 When the automatic motion of the tube rack is on please stop any further operation to avoid injury of the hands 2 During digestion the temperature of the digestion tubes is very high so be careful not to burn the hand or any parts of the body 3 Be cautious with the flammable reagents in the tubes 4 Protective clo...

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Page 20: ...www labbox com ...

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