BEHR S5 User manual

249101
behr S5 fully automatic steam distillation apparatus
Operating Manual

249101
Please read this operating manual carefully before starting use of your new behr S 5 steam distillation apparatus!
The manual introduces you to the use of the apparatus with clear and 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
S 5 Steam Distillation Apparatus

249101
Safety Warnings
Danger of electric shock! Make sure that no liquids get into the apparatus housing or come in
contact with the electrical wires and connections. There are no components inside the appliance
which you need to operate. Repairs to electrical equipment must be carried out only by suitably
qualified and authorized personnel. Unplug the mains plug before opening the appliance.
Glass 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 behind the Plexiglas door!
Do not operate the S5 steam distillation apparatus in damp or explosive atmospheres!
The maximum allowable humidity is 80%
The maximum allowable room temperature is 50 °C
Safety

249101
Contents
Scope of Delivery ...................................................................................................................................................... 5
Parts List 5
Use of the behr S 5in Chemical Analyses................................................................................................................ 5
Operating Conditions 5
Rear view of the behr S 5 .......................................................................................................................................... 7
Installing the behr S 5................................................................................................................................................ 8
Emplacing the steam distillation apparatus 8
Connecting the hoses and tubing 8
Electrical connections 9
Connecting to the electrical power line 9
Calibrating the pH electrode 9
Filling the Steam Generator 10
Front view of the behr S 5 ....................................................................................................................................... 12
Turning the steam distillation apparatus on ......................................................................................................... 13
Preparations 13
Switching the S 5 on 13
Distilling with the behr S 5 ...................................................................................................................................... 14
The operating control unit 14
Programming the S 5 14
Modifying a distillation program 15
Distilling 17
Before shutting the S 5 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 S 5 to your personal requirements......................................................................................... 31
Choosing the language 31
Configuring the level sensor 31
Setting the time 31
Selecting a titration unit 31
Cooling Water Source Setting 31
Setting the Date 31
What to do if ............................................................................................................................................................ 32
How to Display Current Operating Data 32
Error messages 32
Spare Parts............................................................................................................................................................... 36
Technical Specifications......................................................................................................................................... 36
Support .................................................................................................................................................................... 36
Overwiew: Menus and displays of the behr S 5.................................................................................................... 37

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© behr Labor-Technik 2013
249101
Scope of Delivery
Immediately on receipt, check the contents of the deli-
very for absence of damage and completeness.
A claim for damage in transport, which is evident on the
outside of the packing, must be immediately submitted
to the carrier (postal , rail or road haulage carrier) – see
the shipping label on the package.
If components are damaged, but no damage to the
external packing was evident (concealed transport
damage), contact the behr customer service immedia-
tely (also in the event of other complaints). The address
is:
behr Labor-Technik GmbH
Spangerstraße 8
D-40599 Düsseldorf
Téléphone : ([phone]
Télécopie : ([phone]
E-Mail: [e-mail]
Please check the contents against the following list.
Parts List
behr S5 distillation apparatus, completely assembled
Hose set:
1 Water inlet hose, 10/17, with ½“ and ¾“ standard fit-
tings, 2 m
Hoses marked with numbers:
, , : 3 x PVC tubing, 4/7, 2 m
, : 2 x PVC tubing, 8/12, 2 m
: Verprene tubing, 8/12, 2 m
(The cooling-water inlet hose, the cooling-water outlet
hose and the steam-generator feed hose come in
a separate hose package)
3 PVC tube, 6 x 1, 420 mm
1 PVC tube, 10 x 1, 420 mm
1 PP tube 10 x 2, 400 mm
1 Electrical (mains) cable
1 Crucible tongs
1 spare for 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 S 5 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 of spent sample waste, provide for a high degree of
safety and convenience in use.
If you want to use the device for other kinds of anal-
yses, please ask the behr customer service if it is fit
for use with the chemicals needed for this purpose.
Be certain to carefully implement the following guidance
for the sake of safety in operation and the greatest pos-
sible working life of the behr S 5:
— Operate the apparatus always in accordance with
the instructions and warnings in this operating
manual!
Modification or changes to the apparatus are
unauthorized and lead to termination of the guar-
antee. Modifications may result in serious opera-
tional safety hazards and /or reduced reliability of
the S5.
— Do not expose the steam distillation unit to cor-
rosive vapors, such as acids, bases or organic
solvents!
Operating Conditions
Operate the behr S 5 steam distillation apparatus
under normal laboratory conditions.
The S 5 steam distillation apparatus may be con-
nected to a cold water tap having a standard ½“
pipe thread.
Scope of Delivery

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behr S 5
249101
overpressure - steam outlet
RS232-1 Titration Unit
Parallel-PrinterRS232-2 / Titr.Unit
USB
Level Detectors Power
1.1
1.5
1.2
1.3
1.4
Figure. 1: behr S 5 – rear view
See
Fig. 3
See
Fig. 2

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© behr Labor-Technik 2013
249101
RS232-1 Titration Unit
Parallel-PrinterRS232-2 / Titr.Unit
USB
Level Detectors Power
3.13.2
3.3
3.4
3.5
3.6 3.7
H BO3 3
1
Water outlet
4
Cooling water inlet
with filter
H O Sample2
2
Pump for suction
sample
5
NaOH
3
H O for steam
generator
2
6
Rear view of the behr S5
Fig. 1: Overview of the rear side
1.1 Air vent
1.2 Overpressure steam release
1.3 Steam generator overflow outlet
1.4 Steam generator drain
1.5 Excessive temperature circuit breaker
Fig. 2: Tubing connections
-- Cooling water inlet connection with filter
sieve; ¾“ connection for 10/17 PVC hose
1Boric acid; Connection nipple for 4/7 PVC tub-
ing
2sample dilution water; Connection nipple for 4/7
PVC tubing
3NaOH.
Connection nipple for 8/12 PVC-tubing
4Cooling water outlet, 8/12 PVC tubing
5sample waste disposal;-Connection nipple for
8/12 Verprene tubing
6H2O for steam generation; Connection nipple
for 4/7 PVC-tubing
Fig. 3: Electrical connections
3.1 Socket for electrical (Mains) power cable
3.2 Socket for level monitoring
3.3 Reserved for future use
3.4 RS 232 port for titrator
3.5 RS 232 port for software updates
3.6 25-pin port for titrator
3.7 Printer port
Rear view of the behr S 5
Figure 3: Electrical connectors
Figure 2: Hose connectors

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behr S 5
249101
Installing the behr S5
In installing the S 5, be certain to adhere to all buil-
ding codes pertaining to plumbing and to waste
water disposal regulations.
In selecting the location for installation, keep in mind
that the hoses and tubing provided have a length of
2 meters.
Place the behr S 5 steam distillation apparatus on a
sturdy horizontal flat laboratory bench top, with access
to both water tap and drain and sufficient space for the
reagent containers below the bench top.
Select a cold water tap to which you can permanently
attach the hose for the cooling water supply.
Faucets providing a mixture of hot and/or cold
water should not be used.
The water pressure must be at least 0.5 bar for
the proper functioning of the water pressure
safety monitor.
The steam distillation unit is completely assembled by
the manufacturer. Please unpack it carefully.
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Emplacing the steam distillation
apparatus
Place the apparatus on the bench top.
Unpack the accessory parts.
First, put the reagent containers in place:
Container for distilled water
Container for sodium hydroxide (NaOH)
Container for boric acid (H3BO3)
Container for sample waste
The optimal location for these containers is directly
beneath the laboratory bench top.
In no case should the reagent 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 the rear of the S 5:
H2O for steam generator (),
H2O sample ().
Insert the PVC tubes into the container for distilled
water.
Insert the end of the 10 x 1 PVC tube numbered into
an 8/12 PVC tubing segment. Insert the 10x1 PVC tube
into the container for NaOH, and connect the free end
of the PVC tubing segment to the connection nipple
labelled NaOH () on the rear of the S 5.
Make certain that the tubes are securely inserted
in the PVC tubing segments.
Insert the third 6x1 PVC tube into the container for the
boric acid and connect the free end of the PVC tubing
segment to the connection nipple labelled H3BO3()
on the back of the S 5.
Using the pressure-resistant fabric-reinforced hose, con-
nect the cold water tap ½“ pipe thread to the ¾“ fitting
labelled cooling water inlet with filter on the rear of
the S 5.
Finally, connect the two discharge tubing segments:
Insert an end of the Verprene hose into the PP tube.
Connect the Verprene tubing segment to the connec-
tion nipple labelled pump for suction sample () and
insert the PP tube into the container for sample waste
discharge.
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© behr Labor-Technik 2013
249101
H BO3 3
1
Water outlet
4
Cooling water inlet
with filter
H O Sample2
2
Pump for suction
sample
5
NaOH
3
H O for steam
generator
2
6
Installing the behr S 5
Connect the 8/12 PVC tube segment to the connection
nipple labelled water outlet () and lead the other end
to a drain.
File the tubing of the titration device and the electrode
cable through the opening (4.9, cf. page 10).
Screw the tubing to the titration device. Connect the
other side to the tirator (see user’s manual of the tira-
tor).
Make sure the hoses are laid out without kinks.
Otherwise the suction pumps cannot deliver cor-
rectly. Analysis errors may occur as a result, or
distillation may be aborted due to lack of water
in the steam generator. Also make sure the waste
water from the discharge tubes can discharge
freely. This is most important for the distillate
discharge hose. If there are bends (siphons) in
the hose, discharging liquid might suck contents
from the distillation vessel, thus causing analyti-
cal errors.
Electrical connections
Connect the titrator connection cable to the appropriate
port of the S 5: Depending on the type of your titrator, it
will fit into the RS 232 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
electrode in the protection vessel. Make sure there is
enough KCl solution in the vessel so as to keep the
electrode membrane wet. Do not leave the electrode
dry; it would dry out and become useless.
In case you are using the container set KAS 40:
Connect the individual sensor cables from the vari-
ous reagent containers to the central junction box.
Then connect the cable from the central junction box
to the socket labelled LEVEL DETECTORS on the
rear of the S 5.
Connecting to the electrical power line
First, insure that the voltage specification stated on the
model identification sticker of your S 5 corresponds to
the electrical line voltage.
Insure that the electrical power MAIN SWITCH on the
front of the S 5 is set to “0“.
Connect the electrical power cable to the socket on the
rear of the S 5 identified as MAINS.
Connect the mains plugs of the S 5 and of the titrator to
a grounded electrical power socket.
Calibrating the pH electrode
See user’s manual of your titrator.
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behr S 5
249101
~ 40 mg NaCl
H2O for
Steam
Generator
1.
2.
3.
I
0
Filling the Steam Generator
If you fill the steam generator with pure
distilled / demineralised water the level
sensor cannot work. The steam generator
would overfill. Add a little NaCl to the first
water filling, as described here.
The level sensor is a conductivity sensor; it cannot
work if the water has not a conductivity of about 100
µS/cm. This is achieved by addition of NaCl. During
distillation, the salt will remain in the steam genera-
tor; it won’t affect distillation. Only after long use, the
salt may wear out. Then the steam generator must
be refilled, adding a little NaCl to the first filling again.
In a 1-liter beaker, dissolve about 40 mg of NaCl in
some distilled water, and fill up to 1 liter with distilled
water.
Put the suction lance 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, on
again.
Repeat these steps until the pump will not deliver any
more and no error message is displayed.
If the pump does not stop delivering at all, causing
the steam generator to flow over, the level sensor is
defective or has been connected incorrectly.
As soon as the steam generator is full, the pump will
stop delivering and the steam generator will start heat-
ing.
Leave the suction lance in the beaker still; this way you
can check if the device is working properly.
Fill the beaker with distilled water.
Insert the titration vessel.
Perform some distillations and make sure the device
is working properly.
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