Issuu is a digital publishing platform that makes it simple to publish magazines, catalogs, newspapers, books, and more online. Easily share your publications and get them in front of Issuu’s. Rotavapor ® The world’s most compact Rotavapor ® – with eight exclusive R-200/205. Breakage and protects the user. Configurations that meet your needs, by virtue of modular construction and the six standard glass assemblies. All glass components are made of high-quality borosilicate 3.3. The R-100 Rotavapor® has a user-friendly manual-lift mechanism for easy positioning of the evaporation flask in to and out of the water bath, temperature ranges from 20 to 95 °C. The V-100 vacuum pump is included and is controlled by the I-100 Interface controller. The patented Combi-clip allows for easy flask handling and vapor duct removal.

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8 Troubleshooting

R-210/215 Operation Manual, Version F

Table 8-1: General malfunction and their remedy

Sealing system has been installed
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)

Buchi Rotavapor R 300

Choosen hysteresis is too small

Choose larger hysteresis (if end-
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

Vacuum is not reached

Back evaporation at Rotavapor

Empty receiving flask

Water pressure of water jet pump is
too low

Open water tap completely

Distillation “died out”

Manually decrease the pressure until
the distillation starts again

Distillation stopped, although not
dried out completely

Back evaporation from the receiving
flask is too strong (especially for
solvent mixtures)

Empty receiving flask and restart
distillation

Malfunction in distillation procedure
which is not exactly defined (e.g.
sudden cooling, heat flow too low,
etc.)

Decrease the pressure manually until
the distillation starts again

Table 8-3:

Buchi Rotavapor Parts

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

Switch off the instrument and let it
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

The EEPROM of the bath contains
inconsistent data or is defective

Contact the BUCHI customer
service

E04

Heating bath display

The bath is empty or has been filled
with hot liquid

Switch off the instrument and let
it cool down. Fill the bath with
heating medium and switch the
instrument on again.

Buchi R 100

E70

Heating bath display

Buchi Rotovap

Program error due to a software or
an electronical error

Switch the instrument off and on
again. When the error still occurs,
contact the BUCHI customer
service.

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