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Buchi SpeedDigester K-425, Operation Manual, Page: 58 / 58

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Buchi SpeedDigester K-425 Operation Manual Download Page 58

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Summary of Contents for SpeedDigester K-425

Page 1: ...K 425 K 436 SpeedDigester Operation Manual 11593346B en...

Page 2: ...rves the right to make changes to the manual as deemed necessary in the light of experience espe cially in respect to structure illustrations and technical detail This manual is copyright Information...

Page 3: ...mple tubes 15 3 2 Technical data 16 3 2 1 SpeedDigester K 425 110 120V version 16 3 2 2 SpeedDigester K 425 220 240V version 17 3 2 3 SpeedDigester K 436 220 240V version 18 3 3 Materials used 19 4 De...

Page 4: ...housing chamber 43 7 2 2 Liquid ingress into the instrument 43 7 3 Glass component conditions 44 7 3 1 Sample tubes 44 7 4 Sealing system 44 7 5 Rack system 45 7 5 1 300ml sample tube support spring 4...

Page 5: ...ade to the instrument without the prior written agreement of Buchi Unauthorized modifications may affect the system safety or result in accidents Technical data are subject to change without notice No...

Page 6: ...umes which will emerge during digestion In any case all exhausts and fumes leaving the system or assemblies such as Scrubber or water jet pump have to be removed instantly inside a fume hood This is m...

Page 7: ...d could result in death or serious injury CAUTION Indicates a hazardous situation which if not avoided may result in minor or moderate injury no NOTICE Indicates possible property damage but no practi...

Page 8: ...ve material Fire hazard Harmful to life forms Hot item hot surface Device damage Inhalation of substances Chemical burns by corrosives Fragile components Wear laboratory coat Wear protective goggles W...

Page 9: ...and the environment can arise when the instrument is damaged used carelessly or improperly 2 5 1 General hazards The following safety messages show hazards of general kind which may occur when handli...

Page 10: ...glassware cool down safely Do not move the instrument or parts of it when hot NOTICE Risk of instrument damage by liquids or mechanical shocks Do not spill liquids over the instrument or its componen...

Page 11: ...emperature and chemical resistant borosili cate glass Acid fumes generated during digestion accumulate in the suction module The fumes must be safely withdrawn from the suction module via one or more...

Page 12: ...r the proper condition of instrument This includes maintenance service and repair jobs that are performed and on schedule by authorized personnel only Spare parts to be used Use only genuine consumabl...

Page 13: ...s on the ordered system configuration and can be checked according to the individual delivery note and the listed order numbers Note For additional information about the listed products see www buchi...

Page 14: ...l sample tubes for standard applications Item Additional info Order number Recommended quantity to order K 425 K 436 Set of sample tubes 300ml 4 tubes 037377 2 3 Suction module standard 6 place 110558...

Page 15: ...aps set of 4 OPTIONAL 040049 Insulation cap OPTIONAL 11056024 Sealing FKM set of 6 Spare part 038122 Sealing PTFE 1 pcs OPTIONAL 022442 Interlock spring for 500ml rack Spare part 11055385 3 1 4 Access...

Page 16: ...by the enclosure against access to hazardous parts e g electrical conductors moving parts and the ingress of solid foreign objects with a diameter of 12 5mm 0 No protection of the equipment inside the...

Page 17: ...losure against access to hazardous parts e g electrical conductors moving parts and the ingress of solid foreign objects with a diameter of 12 5mm 0 No protection of the equipment inside the enclosure...

Page 18: ...sure against access to hazardous parts e g electrical conductors moving parts and the ingress of solid foreign objects with a diameter of 12 5mm 0 No protection of the equipment inside the enclosure a...

Page 19: ...amber SiO2 SiC Ceramic fiber felt Heating chamber Calcium silicate Insulation plate Phlogopite mica Preheat cover Plastic Front hood PBT Suction hoses EPDM Drip tray PP Rack PPS Sealings suction tube...

Page 20: ...stion process overview 3 2 1 4 Environmental air inlet dangerous vapors are drawn away Condensing zone Infrared heating Boiling digesting sample Insulation plate fireclay insertion Acid vapor outlet t...

Page 21: ...not place any objects on top or below the instrument The instrument must be installed with a safety clearance of not less than 5 cm to any other objects or walls to allow sufficient cooling Do not pl...

Page 22: ...drop the instrument or its transport box Place the instrument on a stable even and vibration free surface Keep limbs out of crushing zone 5 2 System fixation In earthquake prone regions the instrumen...

Page 23: ...s given on the type plate of the instrument be able to handle the load of the connected instruments be equipped with adequat fusage and electrical safety measures in particular proper earthing See als...

Page 24: ...correlated temperature typical average values to every heating level position of each thermostat Level Set point temperature in C Level Set point temperature C OFF 1 70 6 350 2 130 7 410 3 180 8 470 4...

Page 25: ...ockwise to decrease the digestion temperature or even deacti vate the heating chamber OFF position The cooling chamber is not equipped with a heating element It can be used to let a hot rack cool down...

Page 26: ...hen the system is switched on Thermostats Turn the thermostat knob s clockwise to increase the digestion temperature heating level 1 10 Turn the thermostat knob s anticlockwise to decrease the digesti...

Page 27: ...500ml tubes are being used additionally refer to section 6 2 4 Note A rack may achieve a weight of up to 7 5kg when loaded with samples and equipped with a suction module Be prepared for the weight wh...

Page 28: ...hands 6 2 1 Kjeldahl digestion preparing sample tubes During the preparation process handling with strong acid and other dangerous substances is inevi table Thus all steps must be performed under saf...

Page 29: ...g 69 of sufficient amount to the samples Carefully add peroxide e g H2 O2 30 of sufficient amount to the samples The sample tubes can now be installed in a rack Note Note down the sample weight and po...

Page 30: ...ircuit Note Make sure the adapter piece is tightened well without damaging the glassware Keep suction hose s as short as possible under the given circumstances Unused positions should be arranged at t...

Page 31: ...Switch on the Scrubber or water jet pump and activate the fume hood ventilation The rack s can now safely be processed in the SpeedDigester Note Clean all glass parts before mounting to avoid cross co...

Page 32: ...carrier Check the locking by lifting the rack together with the carrier carrier must follow the rack Insert the prepared sample tubes into the rack s 2 start with the first front position Install the...

Page 33: ...on circuit 5 Follow the installation steps in section 6 2 3 to install the suction module If applicable follow the previous steps to install sample tubes in a second rack The sample tubes are now secu...

Page 34: ...nce Note Application notes are available for various samples at Buchi These notes work as digestion recipes and give detailed instructions how to process specific sample materials For application note...

Page 35: ...6 4 2 Starting a digestion process 4 Install the rack s according to section 6 2 3 For peroxide digestion a Suction module H2 O2 with funnels must be installed Place glass caps order no 040049 into ev...

Page 36: ...rn out or defective parts before digestion Handle peroxides in a fume hood Do not bring peroxides into contact with highly combustible material Dispenser with peroxide Filter funnel Rubber GUKO The fu...

Page 37: ...k cools down significantly faster than inside the heating chamber Let the rack s cool down below 40 C first then switch off the Scrubber or water jet pump Carefully remove the suction module s to avoi...

Page 38: ...ks with 500ml sample tubes must not be installed in this position see illustration K 425 Rack in cooling chamber applicable for all available rack tube types K 436 Side position ONLY 300 250ml racks N...

Page 39: ...a crash between the sample tubes and the housing Nonobservance will lead to hazardous situations especially when the sample tubes are filled and hot WARNING Death or serious injuries at glass breakage...

Page 40: ...rip off the suction module s after a digestion process and as a space saving way to securely store a suction module Stand with drip tray illustration with suction unit Screw and holder knob Installing...

Page 41: ...parts of it need prior written permission of the manufacturer WARNING Serious chemical burns by corrosives Observe supplementary data sheets of all used chemicals Handle corrosives in well ventilated...

Page 42: ...ms contact one of these offices The customer service offers the following Spare part delivery Repairs Technical advice 7 2 General condition and cleaning instructions Check the housing for visible def...

Page 43: ...ry before reconnecting the device to mains 7 2 2 Liquid ingress into the instrument In case of liquid ingress into the housing the instrument is not safe to use anymore Follow the instruc tions below...

Page 44: ...digestion The resulting temperature shock might lead to tension and cracks in the glass Make sure that the sample tubes are placed as illustrated in the laboratory washing instrument see drawing Thus...

Page 45: ...ies Each assembly includes a circular spring and a black plastic retaining ring with notches Three of six notches are equipped with small brackets to release the spring gently squeeze the retaining ri...

Page 46: ...prings Each flat spring must be freely rotatable by a small amount If swivelling is not possible exchange the rake Note Rinse the tube holder with water after use to avoid corrosion Store it dry and c...

Page 47: ...een 1 10 Thermostat s is defective Contact Buchi customer service to replace defective component s Fuse has been activated Exchange fuse s see section 8 2 Heating elements are defective Contact Buchi...

Page 48: ...he fuse Replace the defective fuse see technical data for fuse type Reconnect the SpeedDigester to the mains WARNING Death or serious burns by electric current Switch off the instrument Disconnect the...

Page 49: ...possibly dangerous substances Do not clean dusty parts with compressed air Store the instrument and its accessories at a dry place in its original packaging CAUTION Risk of minor or moderate injury by...

Page 50: ...t to the manufacturer for repair work please copy and complete the health and safety clearance form on the following page and enclose it with the instrument 9 2 1 Thermostat s The thermostat s filler...

Page 51: ...es from the device is free of contamination e g that chemicals solvents or residues of pumped media have been drained prior to shipment No hazard emanates from the device 1 B Declaration for dangerous...

Page 52: ...designation instrument serial and part numbers for warranty clearance when ordering spare parts 10 1 Spare parts optional accessories and consumables Example Spare parts Description Order no Mains cab...

Page 53: ...Optional parts Description Order no Scrubber B 414 with condenser 230V 037882 Scrubber B 414 with condenser 120V 037883 Scrubber B 414 with condenser 100V 037884 Condensate bottle 4L for Scrubber B 4...

Page 54: ...10 Spare parts 54 K 425 K 436 Operation Manual Version B Consumables Description Order no Kjeldahl tablets Hg Se free 250 pcs 028765...

Page 55: ...o cause harmful interference in which case the user will be required to correct the interference at his own expense Fran ais Cet appareil a t test et s est av r conforme aux limites pr vues pour les a...

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Page 58: ...w buchi com cn India BUCHI India Private Ltd IN Mumbai 400 055 T 91 22 667 75400 F 91 22 667 18986 india buchi com www buchi in Indonesia PT BUCHI Indonesia ID Tangerang 15321 T 62 21 537 62 16 F 62 2...

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