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Buchi R114 Cold Trap Condenser. Buchi Rotavapor Model R114, Complete with with vertical dry ice/acetone cold trap condenser, stopcock feed port to the evaporating flask, 1 liter condensing and evaporating flask and new seal, with Model B-480 4 liter oil or water heating Bath with a temperature range of 20 to 180C.
8 Troubleshooting
52
R-210/215 Operation Manual, Version F
Table 8-1: General malfunction and their remedy
Sealing system has been installed
incorrectly
incorrectly
Check sealing system
Seal is defective
Replace seal
Table 8-2: Malfunctions with vacuum controller and vacuum pump and their remedy
Malfunction
Possible cause
Corrective measure
Frequent switching of valve or pump
System is leaky
Check all sealing points (tubes and
their connections)
their connections)
Choosen hysteresis is too small
Choose larger hysteresis (if end-
vacuum is higher than 700 mbar,
switch to automatic hysteresis)
vacuum is higher than 700 mbar,
switch to automatic hysteresis)
Valve does not switch
Valve does not shut off
Valve is dirty or the valve cable is not
connected
connected
Vacuum is not reached
Back evaporation at Rotavapor
Empty receiving flask
Water pressure of water jet pump is
too low
too low
Open water tap completely
Distillation “died out”
Manually decrease the pressure until
the distillation starts again
the distillation starts again
Distillation stopped, although not
dried out completely
dried out completely
Back evaporation from the receiving
flask is too strong (especially for
solvent mixtures)
flask is too strong (especially for
solvent mixtures)
Empty receiving flask and restart
distillation
distillation
Malfunction in distillation procedure
which is not exactly defined (e.g.
sudden cooling, heat flow too low,
etc.)
which is not exactly defined (e.g.
sudden cooling, heat flow too low,
etc.)
Decrease the pressure manually until
the distillation starts again
the distillation starts again
Table 8-3:
Error messages heating bath
Error number
Displayed at
Possible cause
Remedy
E01
Heating bath display
Bath temperature sensor is defective Contact the BUCHI customer
service
E02
Heating bath display
Excess temperature, bath is not full
enough or empty
enough or empty
Switch off the instrument and let it
cool down. Fill the heating bath and
switch on the instrument again.
cool down. Fill the heating bath and
switch on the instrument again.
E03
Error is read out via the
RS-485 interface and
can be read out at the
vacuum controller
RS-485 interface and
can be read out at the
vacuum controller
The EEPROM of the bath contains
inconsistent data or is defective
inconsistent data or is defective
Contact the BUCHI customer
service
service
E04
Heating bath display
The bath is empty or has been filled
with hot liquid
with hot liquid
Switch off the instrument and let
it cool down. Fill the bath with
heating medium and switch the
instrument on again.
it cool down. Fill the bath with
heating medium and switch the
instrument on again.
E70
Heating bath display
Program error due to a software or
an electronical error
an electronical error
Switch the instrument off and on
again. When the error still occurs,
contact the BUCHI customer
service.
again. When the error still occurs,
contact the BUCHI customer
service.
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Page 32: 3 commissioning the heating bath, Putting into operation 5.1, Installation site, Electrical connections, Commissioning the heating bath, 5putting into operation
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5 Putting into operation
32
R-210/215 Operation Manual, Version F
5
Putting into operation
This chapter describes how the instrument is installed and gives instructions on initial startup.
NOTE
Inspect the instrument for damages during unpacking. If necessary, prepare a status report immedi-
ately to inform the postal company, railway company or transportation company.
Inspect the instrument for damages during unpacking. If necessary, prepare a status report immedi-
ately to inform the postal company, railway company or transportation company.
Keep the original packaging for future transportation.
5 .1
Installation site
Place the instrument on a stable, horizontal plane and consider the maximum product dimensions.
Perform the distillations under vacuum with the Rotavapor placed under a fume hood. If this is not
possible due to shortage of space, mount the protective shield (optional accessory) and lead the
exhaust gas from the pump into the fume hood.
Perform the distillations under vacuum with the Rotavapor placed under a fume hood. If this is not
possible due to shortage of space, mount the protective shield (optional accessory) and lead the
exhaust gas from the pump into the fume hood.
5 .2
Electrical connections
ATTENTION
Make sure that the voltage on the socket corresponds to the voltage given on the type plate of the
instrument.
Make sure that the voltage on the socket corresponds to the voltage given on the type plate of the
instrument.
Always connect the instrument to an earthed socket. External connections and extension cables
must be provided with an earthed conductor lead (3-pole couplings, cable or plug equipment) as the
mains lead has a molded plug, thus avoiding risks due to inadvertent defective wiring.
must be provided with an earthed conductor lead (3-pole couplings, cable or plug equipment) as the
mains lead has a molded plug, thus avoiding risks due to inadvertent defective wiring.
Make sure that no electric sparks form in the instrument or its surroundings as they might damage
the instrument.
the instrument.
5 .3
Commissioning the heating bath
Place the bath on the base plate of the Rotavapor.
If you need to adjust the position of the bath, lift
it up slightly at the right-hand side and pull or
push it to the desired position.
it up slightly at the right-hand side and pull or
push it to the desired position.
Fig. 5.1: Moving the heating bath
Buchi Rotavapor R 300
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