BINDER VD 23 - Manual (Page 21)

VDL (E2.1) 04/2014 page 21/107
1.6 Intended use
The VDL vacuum drying ovens are suitable for drying and heat treatment of solid or pulverized charging
material, as well as bulk material, using the supply of heat under vacuum.
During this process, the contained solvent may be able to form an explosive mixture with air under normal
conditions. Generation of an explosive atmosphere and its ignition are prevented in the VDL vacuum dry-
ing ovens by various safety measures. The drying temperature with standard safety factor must lie below
the ignition temperature and below the sublimation point of the charging material.
The temperature class of the inner chamber according to IEC 60079-14 can be T1, T2, or T3. Insert only
substances with an ignition temperature that is higher than 135 °C / 275°F. The unit is not suitable to dry
substances with an ignition temperature below 135 °C / 275°F. Substances falling under ignition group IIC
are not permitted (e.g. carbon disulfide, hydrogen).
The VDL vacuum drying ovens are NOT suitable for the heat treatment of hazardous dusts or fibrous ma-
terials, which tend towards exothermal decomposition, or for materials that come under the legal definition
of explosives. Dangerous chemical reactions must not occur during the drying process.
Following the instructions in this operating manual and conducting regular maintenance work
(chap. 16) are part of the intended use.
The charging material shall not contain any corrosive ingredients that may damage the ma-
chine components made of stainless steel and aluminum. Such ingredients include in particu-
lar acids and halides. Any corrosive damage caused by such ingredients is excluded from lia-
bility by BINDER GmbH.
1.6.1 Operation log
For safety reasons, keep an operation log.
The following contents must be entered and recorded:
•
Type of solvent
• Ignition temperature
• Set temperature
• Set safety device
• Date
• Signature
Use the following page as a specimen or compile it in a suitable form.