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BEHR S5, Operating Manual, Page: 26 / 38

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BEHR S5 Operating Manual Download Page 26

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behr S 5

249101

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Cleaning the Distillation Head

During distillation, splashes of the digestion mixtures 

can deposit in the distillation head. Although the test 

program 00 will at the same time rinse the distillation 

head, you will need to take the glassware out of the 

device in order to clean it thoroughly at regular intervals. 
If need be, you can change tubings, non-return valves 

and other wear parts on this occasion. A Maintenance 

Set is available which includes the tubings and other 

wear parts that are most exposed to wear and tear. It 

comes with a detailed instruction manual that is cur-

rently available in English or German.

  Caution: the tubing may still hold remain-

ders of chemicals (especially, caustic 

soda). Liquid leaking out might burn you or 

damage the device.  

Rinse the tubing with distilled water before 

changing it.

  Glass can break and cause injury! In work-

ing with glass components, observe all 

appropriate safety precautions.

Lay out a towel or some other soft cloth beside the 

device.

Take the sample vessel and the titration vessel out of 

the device.

Pull the end cap off the steam delivery tube.

Undo the screw connection 

 that connects the 

steam delivery tube to the distribution head.

Undo the two screw connections 

 that introduce 

the delivery tubes into the glassware distillation head.

Pull the delivery tubes out of the distillation head. The 

right one (the steam delivery tube) is loose now; lay 

it aside. Leave the left tube (the NaOH delivery tube 

) hanging behind the glassware.

Screw the cooling-water connectors 

 off the 

 condenser.

Screw off the lower of the two mounting brackets 

 

which support the glassware.

Secure the glassware with one hand against toppling, 

and screw off the other mounting bracket 

.

  Remember there is still water in the cooler; it might 

drip out when dismantling the glassware.

Grasp the distillation head with the left hand and the 

condenser with the right, and pull the glassware out 

of the device.

Lay the glassware on the cloth beside the device.

Undo the screwcap 

 that fixes the condenser inlet 

tube to the distillation head.

Now you can clean the distillation head and the con-

denser separately. To assemble the glassware again, 

just reverse the steps described here.

Summary of Contents for S5

Page 1: ...249101 behr S5 fully automatic steam distillation apparatus Operating Manual ...

Page 2: ...nd simple guidance For reasons of safety in use of the system please follow all safety warnings carefully These are designated in the text by a warning symbol Additional information which is useful and important for an understanding of the manner of operation of the apparatus is denoted by a stripe in the margin We wish you success in the use of the behr S5 Steam Distillation Apparatus ...

Page 3: ...ass can break and cause injury In working with glass components observe all appropriate safety precautions Risk of burns and injuries When working with corrosive substances follow the safety guidance in the pertinent Safety Data Sheets Caution reaction vessels get hot and can cause burns During the distillation and for a short time thereafter do not touch any parts of the distillation system behin...

Page 4: ...he S5 14 Modifying a distillation program 15 Distilling 17 Before shutting the S5 down 23 Conserving the pH electrode 23 Rinsing the tubes 23 Maintenance 24 Checking the steam delivery rate 24 Checking the Reagents Pumps 25 Cleaning the NaOH Lines 25 Cleaning the Distillation Head 26 Changing the Viton Stopper 27 Changing the Steam Tubing 28 Emptying the Steam Generator 30 Adapting the behr S5 to ...

Page 5: ...or steam hoses 1 spare Viton stopper 1 screwdriver 3 mm 1 screwdriver 2 5 mm Use of the behr S5 in Chemical Analyses The behr S5 is an effective automatic distillation appa ratus for use in various applications Principally it finds application in the steam distillation of Kjeldahl ammonia solutions In this application the automatic addition of NaOH H2O and H3BO3 as well as the automatic drain ing ...

Page 6: ... behr S5 249101 overpressure steam outlet RS232 1 Titration Unit Parallel Printer RS232 2 Titr Unit USB Level Detectors Power 1 1 1 5 1 2 1 3 1 4 Figure 1 behr S5 rear view See Fig 3 See Fig 2 ...

Page 7: ...er inlet connection with filter sieve connection for 10 17 PVC hose 1 Boric acid Connection nipple for 4 7 PVC tub ing 2 sample dilution water Connection nipple for 4 7 PVC tubing 3 NaOH Connection nipple for 8 12 PVC tubing 4 Cooling water outlet 8 12 PVC tubing 5 sample waste disposal Connection nipple for 8 12 Verprene tubing 6 H2O for steam generation Connection nipple for 4 7 PVC tubing Fig 3...

Page 8: ...agent containers be placed at a level higher than the steam distilla tion apparatus Connecting the hoses and tubing Pay careful attention to the labels of the hose and tube connections found on the back of the S 5 Insert the ends of the three 6 x 1 PVC tubes into the three 4 7 PVC tubing segments numbered and Connect the free ends of the PVC tubing segments to the following connection nipples on t...

Page 9: ...socket 3 4 or the 25 pin socket 3 6 Screw the pH electrode to the electrode cable Connect the other sides of the electrode cable and of the connection cable to the titrator Fill some KCl solution KCl 3 mol l into the electrode protection vessel Gently pull the protection cap off the electrode and put the electrode into the electrode protection vessel When you are not doing analyses always keep the...

Page 10: ...ance of the water supply hose into the beaker Switch the steam distiller on The device will fill the steam generator from the beaker It needs about 0 7 liters The pump will not draw this amount in one step but will stop at 0 2 liters and display an error message If the pump has drawn considerably less than 0 7 lit ers and now displays an error message Switch the device off and after a few seconds ...

Page 11: ...hr Labor Technik 2013 249101 4 1 4 4 4 2 4 3 4 5 4 6 4 10 4 11 4 13 4 14 4 15 4 16 4 21 4 22 4 23 4 24 4 25 4 27 4 28 4 29 4 30 4 31 4 32 4 12 4 7 4 8 4 18 4 17 4 19 4 20 4 26 4 9 Figure 4 behr S5 Front view ...

Page 12: ...ing distillation 4 7 Distillate suction tube silicone 4 23 Plexiglass protective door not shown 4 8 Silicone delivery tube for H3BO3 4 24 Fastening screws for glassware mounting 4 9 Opening for electrode cable and titration tube 4 25 Glassware mounting 4 10 Distillate delivery tube silicone 8 12 4 26 Viton stopper for sealing vessel mouth 4 11 Air release valve 4 27 GL 18 screw on connectors with ...

Page 13: ...and also has an electrical circuit breaker built in This circuit breaker operates on a similar principal to those used in homes If too much current is drawn it shuts off The operation of this circuit breaker requires that a spring within it be cocked For this reason a some what greater pressure is required on the switch to turn it on than is required in a similar switch without circuit breaker Swi...

Page 14: ...with a single knob The principle remains in all cases the same Turning the knob enables you to choose an option The currently addressable option is recognized by being highlighted with green text on a black background The knob may be turned in both directions In doing this you will pass all possible options in the display shown and will always again find the desired option on contin ued turning Tr...

Page 15: ...the programming options of the selected program number If you are working with the S5 for the first time then leave the program number selection on 01 Pump delivery rates depend on the position of the chemical vessels desk or floor and the length of hose lines By turning the operating control knob and pressing select the option You will now see the following menu displayed NaOH 3 0 Dist Time 060 D...

Page 16: ...DrainTitr 010 H3BO3 3 0 AutoEndPt Off Prog Number 01 Explanation AutoEndPt Automatic endpoint determination Before destillation the S5 deter mines the pH of the boric acid afterwards it titrates back to this pH If AutoEndPt is Off titration goes to a fixed endpoint Not all titrators allow automatic endpoint determination DrainTitr Run time in seconds for the pump draining the distillate after titr...

Page 17: ...exiglas door Do not operate the S5 steam distillation ap paratus in damp or explosive atmospheres The maximum allowable humidity is 80 The maximum allowable room temperature is 50 C Re filling the reagent lines Before you use your S5 for the first time or after longer periods of disuse the delivery pumps and tubing should be filled with the respective reagent replacing any air or distilled water i...

Page 18: ...lass compo nents leading to a higher degree of condensate formation This could lead to excessive dilution of an actual sample and to an excessive volume of liquid in the sample vessel The introduction of steam at a temperture of approx 106 C results in noises which can be loud These noises are no cause for concern With utilization of our high quality behrotest sample digestion vessels models SR 3i...

Page 19: ...he sample vessel Push the PTFE steam delivery tube into its retaining notch By repeatedly pressing you will return to the main menu Automatic Distillation with the behr S5 Glass can break and cause injury In work ing with glass components observe all appropriate safety precautions Risk of burns and injuries When working with acids and bases follow the safety guidance in the pertinent Safety Data S...

Page 20: ...u Select Manual Entry in order to go to the ManualEntry menu e g to deliver an additional amount of a reagent When you have finished there return to this menu by selecting until you are back here In order to permanently terminate the program Your will be returned to the main menu In order to continue the program Ending the automatic distillation Caution Sample vessel is hot After distillation do n...

Page 21: ... stopper Switching the steam distillation apparatus on Close the protective door and turn the apparatus on using the MAIN SWITCH Following the initialization the main menu appears START OPTIONS PROGRAM 01 The menu selection Start is highlighted Performing a manual distillation In the main menu select Options The following menu appears Device Manual entry Select MANUAL ENTRY The display will then a...

Page 22: ...vessel Wait until the titrator has finished the analysis Select DrainTitrCell Hold the operating control knob depressed until there is no more liquid in the titration vessel Caution Sample vessel is hot After distillation do not touch the sample vessel by hand Use the crucible tongs or a suitable kind of protection Depress the quick release fastener and remove the sample vessel Push the PTFE steam...

Page 23: ... Check to insure that the sample vessel is firmly seated against the Viton stopper Switching the steam distillation apparatus on Close the protective door and turn the apparatus on using the MAIN SWITCH In the main menu select Options Rinsing The following display appears Device Manual entry Select MANUAL ENTRY The display will then appear as follows NaOH Steam Dil H2O Select NaOH and hold the ope...

Page 24: ...stillation time 300 seconds deliveries for dilution water sodium hydroxide and boric acid are set to zero Time for Drain Titr is set to zero as well so you can measure or weigh the distillate that has developed If it has not yet been done switch the S5 on While the steam generator is heating up continue prepara tions Open the cooling water tap Take the pH electrode from the titration vessel and pu...

Page 25: ...ce Start the test program and wait till it is finished A message will appear telling you to start manual titration Just turn the control knob to confirm you re ready Take the sample vessel out and pour the contents into a graduated cylinder 100 ml In 5 seconds the diluting water pump should deliver approximately 70 ml Checking the Sodium Hydroxide Pump Select Destillation program 92 Insert an empt...

Page 26: ... device Take the sample vessel and the titration vessel out of the device Pull the end cap off the steam delivery tube Undo the screw connection that connects the steam delivery tube to the distribution head Undo the two screw connections that introduce the delivery tubes into the glassware distillation head Pull the delivery tubes out of the distillation head The right one the steam delivery tube...

Page 27: ...nte nance doors In order to check the inside of the device you just open these doors you need not pull off the hoses nor dismantle the back panel Caution some parts inside the device will get hot and can burn you Wait for the device to cool down before opening it Danger of electric shock Make sure that no liquids get into the apparatus housing or come in contact with the electrical wires and conne...

Page 28: ...hose and release it again Eventually the steam hose may lose its elasticity then it must be replaced Switch the device off and pull the mains plug Wait for the device to cool down Open the upper maintenance door Inside the device you will notice four intransparent hose lines that go through two squeeze valves One of them is just a short piece of hose that only serves to absorb the force of the squ...

Page 29: ...on the right Gently push the steam equilibration vessel into the bracket from the front Pull it downwards far enough to make a sufficient distance to the squeeze valves If too little space is left between the upper nozzles of the steam equilibration vessel and the squeeze valves the valve cannot shut the tubes properly When doing a distillation steam will escape through the pressure outlet rather ...

Page 30: ...eadless screw that will unblock the outlet when screwed out You will have to do several turns until the valve cone will visibly stick out of its seat But avoid screwing the cone out completely or the water will spurt out of the boring too Let the water flow out into the vessel Close the drain valve again Check the quality of the outflowing water If the water is foaming or otherwise visibly contami...

Page 31: ...a tion unit that is connected to the S5 If the entry doesn t match select the correct type Instead you can use the S5 without using the titrator select Not connected Depending on the type of your titration unit an entry field for additional parameters may appear Do not change it unless you are changing the titration unit If need be ask your behr customer service After changing the Titration unit e...

Page 32: ...n of the steam distillation apparatus Protection door open Door Error You have attempted to execute a distillation program or to generate steam by means of a MANUAL ENTRY but the protective door is open or you have opened the pro tective door during a distillation Close the protective door and press the control knob Distillation will continue Sample Vessel Not Inserted Sample vessel Error You have...

Page 33: ...r for sample waste is too high then dispose of the waste liquid properly If the fill level of liquid in the reagent or distilled water canisters is too low then refill the canisters as needed Turn the apparatus on again using the MAIN SWITCH Titration Vessel is Full Titration vessel Error You have attempted to execute a distillation program but the level sensors in the lid of the titration vessel ...

Page 34: ... that the device will now switch to No titration unit connected mode Confirm this message by pressing the control knob again The device will restart with the No titration unit con nected setting and will come to the Start menu You can now work without using the titration unit or go into the Options Device menu and select the titration unit that is connected Heating Does Not Work Heating On Error N...

Page 35: ...ck of water in the steam generator Steam generator H2O On Error No 022 Error The water feed pump could not fill the steam genera tor within 30 seconds This error may occur in several situations After completely refilling the steam generator If you had to empty and refill the steam generator when the message appears just switch the device off and on again Repeat this one or two more times then the ...

Page 36: ...voltage 230 V 50 Hz Max Power 1700 W Cooling water usage approx approx 3 6 l min Distillation time per sample approx approx 5 min Reagent containers Any size behrotest canister set recommended Data port Connection to titrator RS232 and 25 pin Printer 25 pin parallel Software updates RS 232 Display LCD Programs 96 4 test programs Dimensions W xH x D in mm 420 x 710 x 350 Weight 25 kg Support behr L...

Page 37: ...ain Titr Cell Reac Time 010 Dist Time 010 Dil H2O 3 0 NaOH 3 0 Dist Time 010 Language Eng Containers Off Time 08 14 Parameter 001 Titration unit behr TB1 Reac Time 010 Power 80 DrainSample 010 AutoEndPt On DrainTitr 010 H3BO3 3 0 Setpoint 4 6 Meas Time 010 Stirring 40 back back further back further back further back further back further back further back further back Prog Number 01 Prog Number 00 ...

Page 38: ...or Heating Off Error Steam generator Pressure Error Steam generator Sensor Error Steam generator H2O on Error Sample vessel Error Cool water Error Containers Error Titr vessel Error no 010 Error no 011 Error no 020 Error no 021 Error no 022 Error Titrator ...

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