Rapid Digestor User`s Manual - Cole
Contents
1. STRIP HEATER DIGESTOR VIEW OF UNIT TOP CUTAWAY STRIP HEATER STRIP HEATER INNER PANEL 2 CERAMIC HEATER INSULATION BOARD INDICATOR LAMP SIDES INSULATION BOARD BOTTOM HEATER CONTAINMENT PAN DIGESTOR SIDE SECTIONAL VIEW 24 WIRING DIAGRAM 110 1 310V1d393H MAE A 2 qh a ans w HOLIMS to 3SnN4 dWv 8 N3349 3 AHJMOd 1H9I1 LOTid HOSN3S Nid Z 2 1 H3110ULNOD 3UNIVHJdWIL 25 WIRING DIAGRAM GNNOHD N3389 SdWYv 1 YOLVIIONI YOLSISAYU Z IE HOLS39IQ HOLO3NNOD Z 26 WIRING DIAGRAM POINTER MAIN POWER SWITCH TEMPERATURE SET POINT DIAL CONTROLLER FRONT VIEW OF UNIT CONTROL ASSEMBLY 2 PIN SENSOR CONNECTOR PILOT LIGHT 8 AMP FUSE TEMPERATURE SET POINT DIAL RECEPTACLE CONTROLLER TOP VIEW OF UNIT TOP CUT AWAY 8 AMP FUSE RECEPTACLE 2 PIN CONNECTOR POWER CORD CONTROLLER BACK VIEW OF UNIT 27 WIRING DIAGRAM INSULATOR BOARD CERAMIC HEATER HEATER SENSOR ASSEMBLY TERMINAL BOARD POWER CORD 2 PIN CONNECTOR TO CONTROLLER DIGESTOR TOP VIEW OF UNIT TOP CUTAWAY POWER 2 PIN CONNECTOR CORD DIGESTOR REAR VIEW OF UNIT 28 WARRANTY Labconco provides a warranty on all parts and2. The flask rack can be used for convenient handling and transportation of the digestion tubes Place weighed well ground homogenous samples into digestion tubes and add 9g KoSO4 0 42 g and 15 ml 25 After completing sample and reagent addition to the digestion tubes carefully elevate the rack by grasping the handles provided and place in position on the digestor unit As the rack is lifted each tube will rest on its top rim Carefully lower rack so that each tube enters its respective hole and bottoms in the base of the unit If optional fume removal system has been purchased place system on top of the digestion tubes Alignment is accomplished by a side to side front to back motion Adjust water flow to aspirator to the point where all fumes are removed Refer to instruction manual for Fume Removal System Place end plates on flask rack These plates completely close the ends of the flask rack and allow the temperature of the upper portion of the tube to elevate providing for proper refluxing and condensation of the 25 which washes the carbonized material back into the digestion solution A certain amount of roaming will occur at the beginning of the digestion The refluxing of the acid washes any carbonized material back into the digestion solution If foaming is uncontrollable reduce digestion temperature and or sample size Digest sample at 410 for 45 minutes for complete recovery of all types of nitrogen
3. dilution washing drying and weighing of samples Samples are weighed or volumetrically delivered into the tubes and the digestion mixture added The tubes in the rack are then lowered into the digestor unit The samples are digested at the proper temperature for a predetermined amount of time Digestion temperature and time is determined by the type of sample being digested After digestion is complete the flask rack containing digested samples must be removed from digestor cooled and diluted with water The digestion is now complete and ready for appropriate determination The retainer plate Rapid Digestor 25 Place only is attached to the digestor flask rack to lock the tubes in place allowing the tubes to be emptied washed and dried as a unit without removal from the rack The retainer plate is not to be used during digestion cooling or dilution of the samples INTRODUCTION End Plates The end plates are rectangular aluminum plates that attach to the open ends of the flask rack during digestion Closing the open ends of the rack promotes proper refluxing to wash down the sides of the tubes for complete and efficient digestions The end plates are removed during cooling dilution and washing Fume Removal System Optional equipment An optional fume removal system is available to provide removal of the corrosive fumes expelled during a digestion The use of this system is highly recommended to prevent damage to conventional fume remo
4. for controller parts identification 19 REPLACEMENT PARTS Rapid Digestor 4 Place Catalog No 12767 12766 13249 23084 23030 05 23040 05 23097 Catalog No 12769 13251 23124 23032 DIGESTOR 1 Description Lens Cap Red Indicator Lamp Resistor 2 ohm 20 W Assembly Heater Tube Digestion 250 ml volumetric Pkg of 5 Tube Digestion with NO volumetric marking Pkg of 5 Flask Rack CONTROLLER 2 Description Pilot Light 120V Switch DPST Control Assembly Calibration Resistor 1 Refer to page 28 for digestor parts identification 2 Refer to page 27 for controller parts identification 20 WIRING DIAGRAM Wiring Diagram Controller 110 1 AUNLVHJdWIL KIaWiSSVv TOYLNOD UOLOJNNOD 5 35 Nid 2 3504 dWv 52 HOLIMS UJMOd NIVW 21 WIRING DIAGRAM Wiring Diagram Digestor CONNECTOR EK ru INDICATOR LAMPS 22 WIRING DIAGRAM MAIN POINTER POWER SWITCH TEMPERATURE SET POINT DIAL CONTROLLER FRONT VIEW OF UNIT CONTROL ASSEMBLY 25 AMP FUSE PILOT LIGHT 2 PIN SENSOR CONNECTOR TEMPERATURE SET POINT DIAL CONNECTING POWER CORD CONTROLLER TOP VIEW OF UNIT TOP CUT AWAY CONNECTING POWER CORD gt 25 AMP FUSE POWER CORD CONTROLLER BACK VIEW OF UNIT 29 WIRING DIAGRAM STRIP HEATER
5. the digestion of total Kjeldahl nitrogen is a basic method being used in many laboratories doing feeds and grain digestions 12 ROUTINE MAINTENANCE Periodic cleaning of the surface is necessary to avoid stains from acid spills This is best accomplished with a detergent and water solution when the unit is cool Disconnect unit from electrical source It is necessary to keep the cores of the ceramic heaters clear of any foreign material to assure free insertion of the digestion tubes Calibration The controller has been factory calibrated and should not require re calibration In the event re calibration is required the following procedure should be followed 1 Insert calibration resistor into the 2 pin sensor connector located on the rear of the control unit 2 Place ON OFF switch located on the controller to the ON position 3 Adjust set point indicator dial to a position where the indicator lights located on front panel of digestor are illuminated 50 of the time 4 Loosen setscrews on set point indicator dial and align calibration mark on dial with pointer label For calibration of Rapid Digestor 4 Place align 220 C mark on dial with pointer label Retighten setscrews 5 The digestor is now calibrated to give digestion temperature indicated on set point dial 13 TROUBLESHOOTING Symptom Probable Cause Corrective Measure Main pilot light does not illuminate No heat applied to unit Main pilot l
6. H x 6 3 4 W x 8 1 8 D Up to 5 grams 250 ml straight 250 ml constricted with volumetric mark 4 Ambient to 450 C Approximately 45 minutes Set point dial with indication lamps INSTALLATION Unpacking Use caution when unpacking the digestor and accessories to avoid damage Remove the digestor unit from the carton first and carefully inspect all packing material to insure that no accessories or small parts are discarded by accident If damage from shipping has occurred the customer must file a claim with the carrier IMMEDIATELY Do not return any item to Labconco Corporation without written authorization from the factory Your local laboratory apparatus dealer can assist you and should be contacted if problems occur Installation e Locate the digestor unit under a suitable fume removal system to assure complete removal of fumes and vapors given off during the digestion CAUTION Acid fumes given off during digestion are very corrosive Digestion unit must be placed in venting system that is totally resistant to acid fumes or damage will result to the removal system It is highly recommended that Labconco s fume removal system designed for acid removal from digestors be used in conjunction with a laboratory fume hood e Locate control unit outside hood away from any vapors or fumes Damage to control unit will result if subjected to corrosive vapors or fumes e Connect power from control unit to digestor unit Rem
7. RAPID DIGESTORS Model 23012 Rapid Digestor 25 without digestion tubes Model 23080 Rapid Digestor 4 without digestion tubes INSTRUCTION MANUAL Product designs are subject to change without notice 1998 Labconco Corporation Form 23058 REV ECO A652 Printed in U S A Preface General Description Detailed Operational Function Digestion Unit Control Unit Digestion Tubes Flask Rack and Retainer Plate End Plates Fume Removal System Optional Equipment Specifications Digestor 25 Place Specifications Digestor 4 Place Installation Unpacking Operation amp General Kjeldah Digestion Procedure General Digestion for Feed Grain Routine Maintenance Calibration Troubleshooting Service Main Power Switch Replacement Strip Heater Replacement Indicator Lamp Replacement Resistor Replacement Ceramic Heater Replacement Sensor Replacement Parts and Service References Replacement Parts Wiring Diagrams Warranty Shipping Claims Contacting Labconco TABLE OF CONTENTS O ANAND O nn R Rh w e 15 15 15 16 16 16 17 18 19 21 29 30 31 PREFACE Thank you for displaying confidence in us by selecting a Labconco Rapid Digestor Our design engineers assemblers and inspectors have utilized their skills and years of experience to ensure that the new Labconco Rapid Digestors meets our high standards of quality and performance IMPORTANT NOTICE This manual should be read c
8. all new resistor retighten screws and reassemble in reverse order e Reconnect main power supply Ceramic Heater Replacement e Follow steps 1 5 under Strip Heater Replacement e Remove defective heater from heater containment pan e Install new heater by threading wires through hole in the bottom of the insulator board Feed wires through hole and lower heater in place CAUTION Do not bend wires or allow wires to fold up between bottom of heater casing and insulator board Heater life will be greatly reduced if heater is not installed correctly e Reconnect heater wires and reassemble in reverse order e Reconnect main power supply Sensor Replacement e Follow steps 1 5 under Strip Heater Replacement e Disconnect sensor leads attached to 2 pin connector located on left side of digestor 2 pin connector located on rear of Rapid Digestor 4 Place e Remove heater containing the sensor Refer to layout sketch on page 23 for 25 Place or to page 27 for 4 Place Heater sensor assembly containing defective sensor may be used as heater only by breaking sensor flush with bottom of heater e Install new heater sensor assembly by carefully threading wires through holes in the bottom of the insulator board Feed wires through holes and lower heater in place 16 SERVICE CAUTION Do not bend wires or allow wires to fold up between bottom of heater casing and insulator board Heater and sensor life will be greatly red
9. arefully by all the end users in order to become familiar with the operation of the Rapid Digestors Recommendations are made within the manual to help you obtain maximum performance and life from your product We have included sections on initial set up operation maintenance and troubleshooting to provide you with all the tools necessary to achieve maximum performance If you have questions or concerns do not hesitate to call us at 1 800 821 5525 for assistance WARNING THE DISPOSAL OF SUBSTANCES USED IN CONNECTION WITH THIS EQUIPMENT MAY BE GOVERNED BY VARIOUS FEDERAL STATE OR LOCAL REGULATIONS ALL USERS OF THIS EQUIPMENT ARE URGED TO BECOME FAMILIAR WITH ANY REGULATIONS THAT APPLY IN THE USERS AREA CONCERNING THE DUMPING OF WASTE MATERIALS IN OR UPON WATER LAND OR AIR AND TO COMPLY WITH SUCH REGULATIONS INTRODUCTION General Description The Rapid Digestors are designed for wet digestions on material such as feeds grains soils plant tissues water effluent organic wastes and food products These digestions are made prior to analysis for nitrogen calcium phosphorus heavy metals micro nutrients and other materials The system consists of a control unit a heating unit with digestion tubes and a flask rack for transporting tubes The flask rack is equipped with removable side panels providing increased heat transfer to the upper part of the digestion tubes The heating unit consists of individual heaters constructed
10. containing samples Digestion time may be less for those samples not containing refractory nitrogen Refer to Labconco s extracts Official Methods of Analysis of the Association of Official Analytical Chemists Thirteenth Edition Washington District of Columbia 1980 Methods utilizing copper as the catalyst and 20 minute digestions refer to reference section of this manual and request appropriate Labconco extracts After digestion is complete remove flask rack containing tubes from digestor and place on heat resistant pad Avoid having the hot tubes come into contact with a cool or wet surface As a safety precaution wear asbestos gloves and goggles when removing the rack and tubes from the digestor 11 NORMAL OPERATION 9 Allow tubes to cool for 5 8 minutes Dilute digest with approximately 100 ml water when tubes are cool enough to handle Dilution must be made before a cake is formed from precipitated salts but not before the digest is cool enough to contain the exothermic reaction The cooling period is very important since in the determination procedure caking of the salts will cause low recoveries of the nitrogen contained in the cake 10 After dilution of the digested sample the nitrogen content can be determined by Labconco s Rapid Distillation Apparatus normal Kjeldahl distillation specific ion electrode steam distillation or by manual or automated colorimetric determinations The general method presented for
11. factory workmanship The warranty includes areas of defective material and workmanship provided such defect results from normal and proper use of the equipment The warranty for all Labconco products will expire one year from date of installation or two years from date of shipment from Labconco whichever is sooner except the following e Purifier Delta Series Biological Safety Cabinets carry a three year warranty from date of installation or four years from date of shipment from Labconco whichever is sooner e Carts carry a lifetime warranty e Glassware is not warranted from breakage when dropped or mishandled This limited warranty covers parts and labor but not transportation and insurance charges In the event of a warranty claim contact Labconco Corporation or the dealer who sold you the product If the cause is determined to be a manufacturing fault the dealer or Labconco Corporation will repair or replace all defective parts to restore the unit to operation Under no circumstances shall Labconco Corporation be liable for indirect consequential or special damages of any kind This statement may be altered by a specific published amendment No individual has authorization to alter the provisions of this warranty policy or its amendments Lamps and filters are not covered by this warranty Damage due to corrosion or accidental breakage is also not covered 29 SHIPPING CLAIMS If a shipment is received in visibly damaged cond
12. ight illuminated Indicator lamp not illuminated Uneven heat applied to unit not applicable to Rapid Digestor 4 Place ON OFF switch in off position Main power fuse blown or circuit breaker tripped 25 Amp fuse on control unit blown 8 Amp on Rapid Digestor 4 Place ON OFF switch defective Sensor defective Bulb defective Defective resistor Defective ceramic heater Strip heater defective 14 Turn switch to ON position Replace fuse or reset circuit breaker Check continuity of fuse with ohmmeter Replace fuse if blown If fuse continues to blow locate cause Replace switch Refer to Service Section for replacement procedure Check continuity of sensor by placing ohmmeter across pins 1 amp 2 of female sensor receptacle If resistance measurements show sensor to be open replace sensor by following Service Section on Sensor Replacement Check continuity of bulb with ohmmeter and replace if defective following Service Section Indicator Lamp Replacement Check continuity of resistor for the row of heaters behind indicator lamp not illuminated using ohmmeter Check continuity of each heater contained in the row behind indicator lamp that is not illuminated Replace defective heater following Ceramic Heater Replacement section Check continuity of each strip heater and replace defective heater following Strip Heater Replacement section SERVICE Refer to appropriate wiring diagram
13. ition be certain to make a notation on the delivering carrier s receipt and have their agent confirm the damage on your receipt Otherwise the damage claim may be refused If concealed damage or pilferage is discovered notify the carrier immediately and retain the entire shipment intact for inspection Interstate Commerce Commission rules require that the claim be filed with the carrier within 15 days after delivery NOTE Do not return goods Goods returned without prior authorization will not be accepted Labconco Corporation and its dealers are not responsible for shipping damage Claims must be filed directly with the freight carrier by the recipient If authorization has been received to return this product by accepting this approval the user assumes all responsibility and liability for biological and chemical decontamination and cleansing Labconco reserves the right to refuse delivery of any products which do not appear to have been properly cleaned and or decontaminated prior to return 30 CONTACTING LABCONCO If you have any questions that are not addressed in this manual or if you need technical assistance please contact Labconco s Sales Information at 800 821 5525 and Service Information at 800 522 7658 or 816 333 8811 between the hours of 7 00 a m and 6 00 p m Central Standard Time Labconco s mailing address is Labconco Corporation 8811 Prospect Avenue Kansas City Missouri 64132 Visit Labconco through the Inter
14. l Protein Nitrogen in Feeds Applications Wall L L Sr Gehrke C W and Smith R A University of Missouri Columbia Experiment Sta tion Chemical Laboratories Columbia Missouri The Determination of Nitrogen Content from Predigested Samples with the Labconco Rapid Distillation Apparatus Labconco Extracts 1 780 Labconco Corporation Kansas City Missouri Digestion Method for the Determination of Protein Nitrogen in Feeds Grains Cereals and Grasses Utilizing the Labconco 4 Place Rapid Digestor Labconco Extracts 2 880 Labconco Corporation Kansas City Missouri Digestion Method for the Determination of Protein Nitrogen in Feeds Foods Grains Cereals and Grasses Utilizing the Labconco 25 Place Rapid Digestor Labconco Extracts 3 880 Labconco Corporation Kansas City Missouri 18 REPLACEMENT PARTS Rapid Digestor 25 Place Catalog No 12761 12762 23034 13249 13459 23020 23030 25 23040 25 23051 Catalog No 12707 13240 23119 23032 DIGESTOR 1 Description Lens Cap Red Indicator Lamp Heater Assembly with sensor cemented in place Resistor 2 ohm 20 W Strip Heater Assembly Heater Tube Digestion 250 ml volumetric Pkg of 25 Tube Digestion with NO volumetric marking Pkg of 25 Flask Rack CONTROLLER 2 Description Pilot Light 230V Switch DPST Control Assembly Calibration Resistor 1 Refer to page 24 for digestor parts identification 2 Refer to page 23
15. net at http www labconco com email labconco labconco com 31
16. of ceramic materials providing uniform and efficient heat transfer to the digestion tubes The heaters are encased with an efficient insulating material on four sides and the bottom to prevent heat loss assuring low energy consumption and safe casing temperatures The close tolerance fit between the inner ceramic tube and the digestion solution provides for shorter digestion times and uniform digestion temperatures of the sample solution The heating unit is enclosed in a chemically etched aluminum casing assuring easily cleaned surfaces with no paint to flake off and providing a good appearance throughout the unit s lifetime The control unit is of solid state design and regulates the temperature of the individual heaters uniformly and accurately The large temperature set point dial assures accurate and repeatable temperature settings The unique light display located on the heating unit assures accurate temperature setting and allows for visual observation of the Digestor s operation The digestion tubes are thick walled rimmed and made of borosilicate glass Each tube is manufactured to close tolerances to assure efficient and uniform digestions Digestion tubes are of the straight non constricted type of approximately 250 ml capacity or with construction and an accurate volumetric mark placed at 250 ml volume Detailed Operational Function The Labconco Digestor consists of the digestion unit the control unit and accessories digestion t
17. ove calibration resistor from 2 pin connector located on rear of control unit Connect small diameter gray sensor cord to the 2 prong receptacle provided e Connect main power cord from control unit to suitable electrical outlet 208 240V AC 3 wire installation fused at 25 amps for the 25 Place digestor or 115V AC for the 4 Place Refer to electrical specifications pages 5 amp 6 Adjust temperature set point dial to approximately 300 C Turn switch to ON position Red pilot light on controller panel will be illuminated along with the red light s on the Digestor s front panel e Allow approximately 40 minutes for unit to reach temperature setting When unit reaches temperature the light s on the digestor unit will flash When light s are on one half of the time the temperature indicated on the temperature dial has been reached e Place digestion tubes in flask rack System is now ready for operation 10 NORMAL OPERATION Operation and General Kjeldah Digestion Procedure for Nitrate Free Samples 1 2 General Digestion for feed grain etc 1 Turn main power switch located front of controller to ON position Set temper ature to 410 C using temperature set point dial on controller Allow approximately one hour for unit to reach pre set temperature digestor at pre set temperature when light s located on front of digestor is flashing Carefully insert the digestion tubes into the holes provided in the flask rack
18. s or layout drawing for clarification Main Power Switch Replacement Disconnect main line cord from receptacle Remove the 10 24 machine screws from sides of control unit and remove inner panel exposing switch Remove wires from old switch and replace switch Rewire new switch referring to wiring diagram located on page 21 of manual Refer to page 25 for Rapid Digestor 4 Place wiring diagram Reassemble control unit Reconnect main power supply Strip Heater Replacement Not applicable to Rapid Digestor 4 Place Disconnect main line cord from receptacle Remove screws from sides of digestor and raise inner panel forward exposing indicator lamp housings Disconnect spade terminals to indicator lamp freeing the inner panel for complete removal Remove the six screws from bottom of digestor freeing heater containment pan Tilt heater containment pan to expose wiring Trace wiring to defective heater and disconnect heater wiring Remove heater replace and rewire Reassemble in reverse order starting with number 3 Reconnect main power supply Indicator Lamp Replacement Disconnect main line cord from receptacle Remove lens cap from defective bulb Remove defective bulb from housing and replace Reinstall lens cap 15 SERVICE e Reconnect main power supply Resistor Replacement e Follow steps 1 5 under Strip Heater Replacement e Remove defective resistor from buss bar and terminal strip e Inst
19. tor unit The Rapid Digestor 25 control unit is factory set to accept 208 240 volts 50 60 Hz requiring 20 amp fusing and the 4 Place set to accept 115 volts 50 60 Hz requiring 15 amp fusing Temperatures from a few degrees above ambient to 450 can be set on the set point indicator dial Each controller is factory calibrated for proper temperature setting before leaving the factory and should not require re calibration A calibration resister is provided for a calibration check of the set point temperature if required Refer to Maintenance Section of manual for procedure A red indicator light on the front panel of the control unit is illuminated when unit is energized Flashing of the light s located on the digestor unit indicates the set point temperature when it has been reached the temperature of the digestor is proportionately controlled by the controller Digestion Tubes Flask Rack and Retainer Plate Digestor Model 23006 is supplied with one set of thick walled heavy rimmed heat resistant glass digestion tubes with volumetric calibration marks at 250 ml volume Digestor Model 23000 is supplied with tubes having the same features as with Model 23006 except without calibration markings Models 23012 and 23080 are supplied with out digestion tubes The heavy rims allow the tubes to hang in the stand when the rack is lifted The flask rack is constructed of aluminum alloy and holds the tubes during diges tion as well as during cooling
20. ubes flask rack end plates and retainer plate The digestor can simultaneously handle up to 25 samples each weighing up to 5 g for solid materials or approximately 25 ml for liquid samples Digestion Unit The digestion unit contains electrically heated ceramic cores retained in a pan insulated from the aluminum casing to reduce heat loss and to prevent the metal casing from becoming hot The ceramic cores are precision molded to accommodate the digestion tubes and provide maximum direct contact with the tubes The center heating element with the 25 Place or the rear left with the 4 Place contains a RTD platinum sensor that is encased in ceramic to sense the temperature of the digestor and signals the control unit providing uniform temperature control INTRODUCTION CAUTION The top surface of the digestor is hot during operation and for a period of time after shutdown To avoid the possibility of burns do not touch the surface with bare hands The exposed surfaces of the unit are made of aluminum finished by a chemically etched process to withstand corrosion The light s located on the front of the digestor indicates when the digestor has reached set point temperature and any malfunction that could occur along with providing over and under temperature set point indications Flashing of the light s indicates proper temperature control Control Unit The solid state proportional controller regulates the temperature of the diges
21. uced if heater is not installed correctly Reconnect heater wires and solder sensor wires to the 2 pin connector Reconnect main power supply Recalibrate unit by following calibration procedure in Maintenance Section of this manual Parts and Service If a problem should arise please contact your local laboratory apparatus dealer through whom you purchased the Labconco products Please include Labconco catalog and serial numbers on all phones or letter inquiries to obtain prompt action on your particular unit Consult nameplates to obtain this information If contacting Labconco directly please furnish the name of the dealer from whom you purchased the equipment WARNING PERCHLORIC ACID IS A VERY RAPID OXIDIZER IT COMES BOIL RELATIVELY LOW TEMPERATURES WITH THE LIQUID CONTENTS TOTALLY EVAPORATED IN A SHORT AMOUNT OF TIME THE RESIDUE WHICH REMAINS AFTER THE LIQUID IS DRAWN OFF BECOMES ANHYDROUS AND VERY UNSTABLE FOR THIS REASON LABCONCO WARNS AGAINST THE USE OF PECHLORIC ACID WITH THIS EQUIPMENT AS A REACTION COULD RESULT 17 REFERENCES Official Methods of Analysis of the Association of Official Analytical Chemists Thirteenth Edition Washington D C 1980 Hambleton L G and Noel R J Journal of the Association of Analytical Chemists 58 143 145 1975 Noel R J and Hambleton L G Journal of the Association of Analytical Chemists 59 134 140 1976 Semi Automated Method for Tota
22. val hoods SPECIFICATIONS Specifications Rapid Digestor 25 Place Electrical Operating Voltage Current Max Fusing Frequency Physical Weight Digestion Unit Control Unit Tubes Flask Rack End Plates Size Digestion Unit Control Unit Flask Rack Flask Rack w handles End Plate Tubes Volumetric Straight Sample Size Features Digestion Tubes Types Capacity samples digestion Temperature range Heat up time to 410 C Temperature readout 208 240V AC single phase 16 Amp at 230V AC 25 Amp fuses 0208 or 240V AC operation 50 or 60 Hz 78 165 10 8 Ibs 9 2 Ibs set of 25 3 6 165 1 4 Ibs 8 Hx 19 1 4 W x 19 D 5 1 8 H 8 W x 12 1 8 D 6 1 2 x 14 1 4 W x 14 1 4 D 6 1 2 x 17 3 4 W x 14 1 4 D 6 1 2 14 9 16 W x 1 D 11 15 16 L x 1 65 OD 11 15 16 L x 1 65 OD Up to 5 grams 250 ml straight 250 ml constricted with volumetric mark 25 Ambient to 450 C Approximately one hour Set point dial with indication lamps Specifications Rapid Digestor 4 Place Electrical Operating voltage Current Max Fusing Frequency Physical Weight Shipping Size Digestion Unit Control Unit Sample size Features Digestion tube types Capacity samples digestion Temperature range Heat up time to 410 C Temperature readout SPECIFICATIONS 115V AC 6 Amp 115V AC 8 Amp 115V AC 50 or 60 Hz 30 Lbs 6 3 8 H x 9 W x 11 1 4 D 4 3 4
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