BINDER VD 23 User Manual
Page 18
VDL (E2.1) 04/2014
page 18/107
If the following precautions are not followed, the vapors resulting from heating of the solvent can ignite on
the hot walls of the inner chamber.
Required measures:
•
The maximum drying temperature is a result of the lowest ignition temperature of the intro-
duced solvent or solvent mixture. Take the ignition temperature from the safety specifica-
tions of the solvent. Determine the maximum drying temperature according to the infor-
mation panel “Temperature setting” (chap. 2.5) on the unit front. Do NOT exceed this tem-
perature when presetting the set point on the RD3 temperature controller.
•
Before starting the drying process, set the temperature safety device to the maximum al-
lowed drying temperature according to the information panel “Temperature setting” (chap.
2.5). This will ensure that even in the event of error or an incorrect increase of the tempera-
ture set point on the RD3 controller the maximum permissible drying temperature is not ex-
ceeded. It is NOT sufficient to directly adjust the maximum temperature of the temperature
safety device to the maximum temperature of the solvent’s temperature class.
•
During the drying process, use only those solvents for which the temperature setting has
been performed.
•
In the case of solvent mixtures, use the ignition temperature of the material with the lowest
ignition temperature. For the correct ignition temperature, refer to the safety specifications
of the solvent.
•
Let the oven cool down to ambient temperature before you start a new drying process with
a modified ignition temperature.
Familiarize yourself with the physical and chemical properties of the charging material, as well as the con-
tained moisture constituent and its behavior with the addition of heat energy and changes in pressure.
No dangerous chemical reactions must occur during the drying process.
Familiarize yourself with any potential health risks caused by the charging material, the contained moisture
constituent or by reaction products that may arise during the drying process. Take adequate measures to
exclude such risks prior to putting the VDL vacuum drying oven into operation.
1.5.4 Safety instructions on operating the vacuum drying oven
Note the following points before starting up the oven:
•
When loading the unit and possibly at the moment of removal, also in the context of intend-
ed use, an explosive mixture may form in the working space. Define a safety area of at
least 1m from the unit front.
•
Ensure that at no time any solvent vapors could enter in the area of the electrical installation
room and the operating panel.
•
Provide additional security measures in the area of the vacuum pump stand, particularly in
the areas of the glass flask (when emptying it) and the exhaust air of the vacuum pump.
•
The accessible area in front of the equipment must be designed conductive. Provided cyclic
measurements.
•
The personal protective equipment (PPE) of the operating personnel must be implemented
ESD protected.