9
Safety
KNAUER
Degasser 20DG User Manual V7632A, Version 1.1
Flammability
Organic solvents are highly flammable.
Since capillaries can detach from their screw fittings and allow
solvent to escape, it is prohibited to have any open flames near
the analytical system!
Self-ignition
point
Only use solvents that have a self-ignition point higher than
150 °C under normal ambient conditions!
Unsuitable
solvents
The following solvents can attack the components of the pump
and are therefore not suitable:
Mineral and organic acids (except in buffer
solutions)
Bases (except in buffer solutions)
Liquids containing particles
Perfluorinated hydrocarbons
Suitable to only a lim-
ited extent
The following solvents are suitable to only a limited extent for
use in the pump:
Methylene chloride
Tetrahydrofuran (THF)
Dimethyl sulfoxide (DMSO)
Volatile solvents
Fluorinated hydrocarbons
Leaks and
clogged tubes
• Regularly check for leaks or clogged tubes.
Protective Measures
1. Only perform maintenance tasks described in this manual.
2. All other maintenance tasks are to be performed exclusively
by KNAUER or a company authorized by KNAUER.
Without exception, the following applies to all maintenance
tasks that can be performed by the user:
1. Switch off the device and pull the power plug!
2. Never open a device! High voltage poses a life-threatening
risk.
Power Supply and Mains Connection
The device is intended for use with AC power networks of 100–
240 V. The supplied power supply unit is to be used to connect
the device to the mains.
Note
To separate the degasser from the mains, remove the switched-
mode power supply from the rear of the device.
