Standard Operating Procedures (Sops) - Binder VDL Series Operating Manual

2.6

Standard Operating Procedures (SOPs)

The operator is responsible to determine the correct auto-ignition temperature of the solvent. To ensure
this, creating Standard Operating Procedures (SOPs) is recommended.
In particular, this should prevent the Residual Risks due to incorrect operation specified in Chap. 1.11
and the exceeding of the auto-ignition temperature of the solvent.
When creating Standard Operating Procedures, take into account the information and instructions in this
Operating Manual. The following are some examples of these risks and suggestions for measures to be
taken. These are to be created, adapted, and supplemented by the operator using the risks determined
and respective conditions at the installation site.
Risk
Operation of the device by
untrained users
Use of an unsuitable solvent
with a too low ignition temper-
ature
Cause: Assumption of wrong
solvent
Reloading with the a material
with a lower auto-ignition tem-
perature
Termination of the drying pro-
cess due to inadmissible sol-
vent with a too low ignition
temperature.
Ventilation with ambient air or
opening the still hot chamber
Cause: 2 operating errors:
incorrect loading with an in-
admissible solvent; improper
Termination of the drying pro-
cess
Unnoticed sensor drift or fail-
ure of safety devices due to
missing or delayed mainte-
nance and tests
This list is NOT exhaustive. The risks result from the risk assessment to be done by the operator (Chap.
2.1). The measures must be determined by the operator of the device based on the risks determined and
the respective conditions at the installation site.
VDL (E3.1) 06/2020
Measures
• Ensure knowledge of the Operating Manual
• Use only ATEX-trained personnel
• Create operating instruction and standard operating procedures
• Prior to each new drying procedure check again the auto-ignition
temperature with the safety specifications.
• Clearly label the material to be dried to avoid confusion
Information: There is no risk during the proper drying process, since
this takes place in a vacuum. There is only a risk in the event of prema-
ture air supply (termination of the drying process.
• Avoid premature air supply. Also observe the instructions in the
Operating Manual.
• Prior to each new drying procedure check again the auto-ignition
temperature with the safety specifications and the desired drying
temperature. If appropriate, let the chamber cool down before re-
loading
• Disconnect the power plug and turn off the pump.
• Let the chamber cool down to room temperature.
• Do NOT remove the "Manual ventilation" plug.
• Only ventilate when the interior temperature has cooled to room
temperature. Only then open the door.
• Perform regular maintenance and the prescribed tests of the cham-
ber.
• Create detailed maintenance and testing plans and ensure they are
implemented.
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