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Vapodest 45s

8 Execution of method

This chapter describes the execution of a distillation. However, we can only give 

you a general overview how to work with Vapodest in this manual. Should you need 

any specific methods we will send you the respective application on request. These 

data sheets contain detailed info about the sample preparation and programming.

Make sure to always wear protective clothes (gloves, protective glasses, lab coat) 

when working with Vapodest. 

When you take out the digestion tube, make sure to wear protective glove or have 

glass tongs at hand and wear protective glasses. The glass container is very hot 

and there is the danger of burns!

Be careful when handling acids and alkalis! Please observe the safety regulations 

according to the current laws regarding handling of dangerous goods!

8.1. Prior to the analysis

Check set of tanks

Check the level of reservoirs and the connections at regular intervals.

Turn on faucet

The system is only working when the faucet is turned on.

Test run

In order to make sure to obtain reproducible results, we kindly ask you to run a 

distillation without sample every day prior to the first analysis. In order to do so, 

insert the digestion tube and start 

Program M00 Test run

.

8.2. Distilling a sample without external titrator

Whenever using an external titrator, make sure to read chapter "8.3. Start

analysis with external titrator".

 

1.

  Place an Erlenmeyer flask into position

 

2.

  Press down quick clamping device and insert the digestion tube.

   

 

3.

  Check correct fit of the tube.

 

4.

  Close protection door and turn on equipment.

Warnung vor

einer Gefahrenstelle

Warnung vor

einer Gefahrenstelle

Warnung vor

einer Gefahrenstelle

Vapodest 45s
Standby

turn

 5. 

The display shows the standby mode

Summary of Contents for Vapodest 45s

Page 1: ...cember 2008_D Please read this instruction manual with care before you start operating the system Please observe the safety instructions of this manual marked with Warnung vor einer Gefahrenstelle in...

Page 2: ...ww ww w 1 17 78 88 8l la ab b c co om m E E m ma ai il l i in nf fo o 1 17 78 88 8l la ab b c co om m L L LA A AB B B O O On n nl l li i in n ne e e E E Ex x xh h hi i ib b bi i it t ti i io o on n n...

Page 3: ...iew Vapodest upper part 14 4 6 1 Description of rear view upper part 15 4 7 Tubing connections 16 4 8 Mains connection Vapodest 17 4 9 Connection of titrator and electrode 18 4 9 1 Connection of the e...

Page 4: ...leaning general 43 11 1 2 Cleaning program 43 11 1 3 Check the tight fitting of the tubes 43 11 2 Tubing diagram Vap 45 s with open rear wall 44 11 2 1 Description of the tubing diagram 45 11 3 Spare...

Page 5: ...m stances The symbols at the border of the text emphasize the dangers cited in the text Symbols at the instrument warn of possible dangers and will refer you to this manual The copy right of this manu...

Page 6: ...vention regulations in place the general accident prevention regulations EU regulations or other country specific instructions Indicating label and danger symbols must not be taken off Alle engineered...

Page 7: ...ly trained per sons The user has to read comprehend and observe the operation manual wear suitable clothes for laboratory work deny access to any unauthorized personnel Warnung vor einer Gefahrenstell...

Page 8: ...2 0351 3 2 Technical data Nominal voltage 230 V AC 50 Hz or 115 V 60 Hz or 230 V 60 Hz Nominal wattage 1600 W Cooling water consumption about 5 liters per distillation minute Cooling water pressure mi...

Page 9: ...need a connection cold water pipe with 1 2 inch thread to connect it to the water supply Make sure to take a faucet which can be connected to the inlet tubing permanent ly The water pressure must be a...

Page 10: ...566 1 x PVC pipe 10 x 1 400 mm Item No 1000567 1 x Mains cable Item No 10 0048 1 x Kjeldatherm digestion tube 250 ml Item No 12 0301 1 x Instruction manual 1 x Test report 1 x Installation report Opti...

Page 11: ...10 Vapodest 45s 4 Assembly and Installation 4 4 Front view Vapodest 45s Version with titration 4 5 1 6 7 8 9 10 11 12 13 14 15 2 3 16 18 20 17 24 21 22 23 19...

Page 12: ...nser with high cooling power 11 Screw cap GL14 Item No 1004320 with plastic screw connection 12 PP Distributor with PP threaded joint Item No 1000538 13 Control panel Vapodest See chapter 5 2 Control...

Page 13: ...12 Vapodest 45s 4 Assembly and Installation 4 5 Front viewVapodest 45s without titration 2 3 1 4 5 6 7 8 9 10 11 12 13 14 15 17 18 19 20 21 16 22...

Page 14: ...cap GL32 Item No 1004322 with silicone PTFE seal 10 Distillation condenser Item No 1000059 Combined ball and coil condenser with high cooling power 11 Screw cap GL14 Item No 1004320 with plastic scre...

Page 15: ...14 Vapodest 45s 4 Assembly and Installation 4 6 Rear view Vapodest upper part 11 2 3 5 6 7 8 10 12 13 14 15 16 18 1 4 9 17 only Vap 45 with external titrator...

Page 16: ...ation for steam generator here hot steam can escape 11 Excess pressure steam outlet Safety device to let steam escape in case of overpressure in the boiler 12 Excess temperature fuse Safety measuremen...

Page 17: ...to observe the labeling of the connection at the rear of the instrument Set up store tanks for distilled water sodium hydroxide solution boric acid solution and sample waste under the work bench Fig 5...

Page 18: ...for H2 O Connection of set of storage tank KAN 40 KAN 50 A 4 x connection cable from level detection tank to distribution box B Distribution box with 4 plugs KAN 50 with 5 plugs C Connection cable fro...

Page 19: ...view Description of the tubing connections 1 Titration tube connection from titrator to titration acid 2 Titration tube connection from buret to distributor t piece 3 Titration tube connection from ti...

Page 20: ...Connect the interface cable with the interface RS 232 of the Vapodest 4 Provide mains connection for the titrator 4 9 2 Connection of the electrode Please make sure to study the enclosed instruction m...

Page 21: ...un an analysis you have to wait for about 5 minutes till the steam generator has reached its operating pressure All other functions are available right away 4 After the system is ready the display sho...

Page 22: ...t Press the operator button confirm selection Keep the push button pressed and turn it back in counter clockwise direction back to main menu exit function 3 Mains switch Turn instrument on or off 4 Ke...

Page 23: ...guage Select system language For detailed info please see in chapter 6 1 Se lection of languages Titration Settings for titrations with titrator For detailed info please see in chapter 6 5 Titration C...

Page 24: ...xplained For standard pro cedures it is sufficient to determine these functions once when the instrument is taken into use for the first time 6 1 Select language Vapodest 45s Standby turn press press...

Page 25: ...al window there are 2 options to set the contrast Vapodest 45s Standby Contrast turn press Contrast press turn 1 Option Via main menu 2 Option Using the combination of keys Vapodest 45s Standby Multif...

Page 26: ...t operation or whenever the chemicals used are changed Vapodest 45s Standby Reagents turn press Tank control Active dr cken press H2O Pump XXXml min Tank control Active turn Active when using set of t...

Page 27: ...ess 5 Determine the delivery volume After 10 seconds of the transport time take out digestion tube and fill content into a measuring flask Turn multi functional button to enter the volume Comment the...

Page 28: ...al operation O act Total running time of distillation system since last service H tot Total running time of H2 O pump since initial operation H act Total running time of H2 O pump since last service N...

Page 29: ...e Vapodest 45s Standby Titration turn press Use Titrator Yes press Titrator Titroline easy Use Titrator Yes turn Yes operation with external tirtator with Schott TitroLine easy No operation without ex...

Page 30: ...endpoint shown on the display If the option Endpoint auto is selected during the programming of the Vapodest 45s then the titration will go back to the pH value of the boric acid receiver at the begi...

Page 31: ...9 2 Enter or edit program name here max 12 place press M01 Ammoniu_ Edit name turn press Example The programming example refers to a sulphuric acid digestion acc to Kjeldahl during which 20 ml H2 SO4...

Page 32: ...s containing copper sulphate are used a colour change of the sample takes place if it is alkaline When Selen is used as a catalyst an indicator can be added to the sample to have a visual check The ad...

Page 33: ...uch a case 200 ml have to be distilled over Setting range 99 min and 59 s 7 Steam power Usually maximum power is used for the Kjeldahl analysis If the power is reduced the distillation time is increas...

Page 34: ...ng single drops they won t have any influence on the following analyses Setting range 0 99 s 10 Adition H3 BO3 The diaphragm of the electrode must be completely immersed in the receiving solution so t...

Page 35: ...t laws regarding handling of dangerous goods 8 1 Prior to the analysis Check set of tanks Check the level of reservoirs and the connections at regular intervals Turn on faucet The system is only worki...

Page 36: ...so push the quick clamping device downwards Careful At the end of the distillation the digestion tube is very hot Thus make sure to wear protective gloves and protective goggles 9 Would you like to co...

Page 37: ...t the desired method program M01 to M20 6 Current pH value is entered If you have selected endpoint Auto in the menu Titration settings see chapter 7 5 Titration the pH value of the receiver solution...

Page 38: ...t Thus make sure to wear protective gloves and protective goggles 10 Would you like to continue with the program and run additional Analysis then please insert a new digestion tube and press the push...

Page 39: ...process can be interrupted at any time M01 Ammonium Stop Continue turn press 1 Press push button during the distillation 2 Select option Select Stop Abort distillation Select Continue Distillation is...

Page 40: ...and the protection door is closed Wait for steam Steam generator has not yet reached its required pressure Message disappears as soon as the steam generator has reached the correct pressure Method Not...

Page 41: ...ter level of steam ge nerator is not measured any longer Turn instrument off and then turn it on again Should the problem reoccur call customer service Error message Reason for error Actions to be tak...

Page 42: ...of caustic soda which is added is too low no release of ammonia Not enough boric acid in the receiver escaping am monia is not entirely absorbed Tube is not immersed entirely into the boric acid re ce...

Page 43: ...ing for the addition of boric acid pos 7 and Slide silicone tubing of the distillate outlet tubing pos 4 through the opening into the titration cell shorten tubing so that they will end shortly above...

Page 44: ...is collected in the drip tray Please clean the drip tray regularly 11 1 2 Cleaning program Glass parts and suction pump should be cleaned before long periods of non usage i e holidays This way blocka...

Page 45: ...ance 11 2 Tubing diagram Vap 45 s with open rear wall The instrument may only be opened by an authorized and trained per son Warnung vor einer Gefahrenstelle 12 11 10 13 30 29 17 18 16 19 21 22 23 24...

Page 46: ...1000398 14 Silicone tubing 4 x 7 mm 1000488 15 Silicone tubing 4 x 7 mm 1000488 16 Verprene tubing 8 x 12 mm 1000499 17 Verprene tubing 4 x 8 mm 1000498 18 Silicone tubing 4 x 7 mm 1000488 19 Silicone...

Page 47: ...es 1 pair 1000391 Drip tray PP 1000399 Mains switch 1004331 Control panel 1004118 Knob for operator button 1004325 Excess current switch 10A 1001358 Tubular heating element for steam generator 1000259...

Page 48: ...1994 Cable for electrode DIN Vap 45 1002170 Buffer solution pH 4 250 ml 1000176 Buffer solution pH 7 250 ml 1000177 KCL electrolyte solution 250ml 1000178 Set of storage tanks KAN 40 complete with 12...

Page 49: ...seal GL 32 1000357 More accessories Tubes 250 ml KTG 250 standard version 12 0301 400 ml KDD 400 standard version 12 0310 800 ml KDD 800 standard version 12 0311 400 ml BS 400 special version diminis...

Page 50: ...t customer ser vice of your dealer or C Gerhardt to terminate the operation of the instrument 12 2 Contact service In case of more problems or failures of your Vapodest 45s please contact your local d...

Page 51: ...March 23rd 2006 As of this date C Gerhardt takes back all instruments delivered after August 13th 2005 without charges and will dispose of them according to the regulations or Gerhardt will come to a...

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