User guide
Table Of Contents
- 1 About this manual
- 2 Safety
- 3 Technical data
- 4 Description of function
- 5 Putting into operation
- 6 Operation
- 6.1 Menu structure of the Vacuum Controller V-850/855 software
- 6.2 Vacuum Controller V-850/855 main screen in Manual mode
- 6.3 Selecting the distillation conditions
- 6.4 Starting a distillation
- 6.5 Vacuum Controller V-850/855 main screen in Gradient mode
- 6.6 General information on buttons
- 6.7 Main menu
- 6.8 Calibrating the pressure sensor
- 6.9 Recirculating chiller
- 6.10 Tips and tricks for a distillation
- 7 Maintenance
- 8 Troubleshooting
- 9 Shutdown, storage, transport and disposal
- 10 Spare parts
- 11 Declarations and requirements

2 Safety
6 V-850/855 Operation Manual, Version E
2 Safety
This chapter points out the safety concept of the instrument and contains general rules of behavior
and warnings from hazards concerning the use of the product.
The safety of users and personnel can only be ensured if these safety instructions and the safety-
related warnings in the individual chapters are strictly observed and followed. Therefore, the manual
must always be available to all persons performing the tasks described herein.
2.1 User qualification
The instrument may only be used by laboratory personnel and other persons who on account of
training or professional experience have an overview of the dangers which can develop when
operating the instrument.
Personnel without this training or persons who are currently being trained require careful instruction.
The present Operation Manual serves as the basis for this.
2.2 Proper use
This instrument has been designed and built for laboratories. Its proper use includes regulating and
displaying a vacuum in a working range between 0 mbar up to atmospheric pressure.
The vacuum controller is used for:
• Distillation instruments, especially rotary evaporators
• Vacuum drying cabinets
2.3 Improper use
Applications not mentioned above are improper. Also, applications, which do not comply with the
technical data, are considered improper. The operator bears the sole risk for any damages caused by
such improper use.
The following uses are expressly forbidden:
• Use of the instrument in rooms which require ex-protected instruments.
• Use as calibrating instrument for other instruments.
• Use in excess pressure.










