Click here to go to the Catalogue

Scotland 01236 431 857

Export +44 (0)1482 649 665

England & Wales 0115 982 1111

Buchi V-850/855 Vacuum Contollers

E34-84 

   

The V-850/855 vacuum controller is an ideal supplement to the Rotavapor. Sitting on top of and directly attached to the Rotovap control panel, the clear digital displays ensure that 
all process parameters are visible at a glance. An RS-485 interface provides communication and power supply for the vacuum controller, ensures automatic detection and the intuitive 
operating system covers all your requirements, from simple maintenance of the set vacuum to the automatic distillation of complex mixtures. 

Features common to both units include

 



Chemical-resistant precision pressure sensor with capacitive measuring principle

 



An integrated solvent library with 43 present solvents that can be expanded by the customer.

 



Integrated ventilation valve which opens in the event of a power failure and prevents over-pressure in the system

 



Ease of operation though a rotary knob and large graphic display, USB port allows data transfer

 



Innovative speed regulation in combination with the Vacuum Pump V-700 or V-710 provides a hysteresis free precise vacuum combined and quite operation

 



LabVac function to allow intelligent control of a Buchi vacuum pump as part of a vacuum system with several other users

In addition to all the above, the V-855 model also offers the following additional features:

 



Programming function for pressure gradients, ideal for difficult to distil products like foaming extracts or those with boiling delay

 



EasyVac function – an automatic process control based on vapour pressure detection which guarantees simplified, automatic distillation of individual solvents and complex solvent 
mixtures. 

 



Automatic distillation with a stage probe positioned in the rotary evaporator`s condenser. 

 



Repeat function: The pressure curve of a manual or automatic distillation can be stored and retrieved anytime as set point values for optimum process conditions 
 

Code

Description

EVA4214 Buchi V-850 Vacuum Controller unit with power pack

EVA4216 Buchi V-855 Vacuum Controller unit with power pack

Accessories

   

Code

Description

EVA4218 Valve Unit for Buchi Vacuum Controllers when used with non-Buchi Vacuum Source

EV

APORA

TION, V

ACUUM PUMPS AND CONTROLLERS

EVAPORATION, VACUUM PUMPS AND CONTROLLERS

340