VDL (E3) 09/2019 Page 32/234
Unpacking, Transport, Installation
• Sliding or tilting the chamber
• Setup of the chamber in unauthorized areas
• Installation of a damaged chamber
• Installation of a chamber with damaged power cord
• Inappropriate site of installation
• Missing protective conductor connection
• Use of unsuitable pump or vacuum systems
• Improperly connected pump
• Missing or improperly executed equipotential bonding
• Incorrect connection and insulation of the switch contacts for the measuring access port (optional)
• Missing or improperly designed technical ventilation in the installation area
Normal operation
• Assembly errors
• Lack of electrical testing before initial commissioning or recommissioning
• Insufficient or missing technical ventilation (extraction) at the installation area of VDL and pump
• Contact with hot surfaces on the housing
• Contact with hot surfaces in the interior and inside of doors
• Emission of non-ionizing radiation from electrical operating resources
• Use of inert gas in higher concentration (optional)
• Use of unsuitable pump and discharge
• Excessively high gas intake temperature or insufficient cooling of the extracted vapor before entering
the vacuum pump
• Contact with live parts in normal state
Cleaning and Decontamination
• Explosive atmosphere during cleaning and decontamination
• Electrostatic charges
• Penetration of water into the chamber
• Inappropriate cleaning and decontamination agents
• Enclosure of persons in the interior
Malfunction and Damage
• Continued operation of the chamber during an obvious malfunction or outage of the heater or vacuum
system
• Contact with live parts during error status
• Operation of a unit with damaged power cord
Maintenance
• Maintenance work on live parts.
• Explosive atmosphere during maintenance
• Execution of maintenance work by untrained/insufficiently qualified personnel
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