Safety during operation, Maintenance and repair, Notice – VACUUBRAND VNC 2 User Manual
Page 9
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully
the validity of this document with respect to his product. Manual-no.: 999161 / 27/03/2012
➨
Controllers bearing the ”
`
” mark on their rating plates are approved for op-
eration with potentially explosive atmospheres according to their classification
II 3G IIC T3 X according to ATEX, but they are not approved for operation in po-
tentially explosive atmospheres (see section „
ment marking (ATEX)“, pg. 11).
• Ensure that the materials of the controller’s wetted parts are compatible with the
substances in the vacuum system, see section „Technical data“, pg. 12.
Safety during operation
➨
Adopt suitable measures to prevent the release of dangerous, toxic, explosive,
corrosive, noxious or polluting fluids, vapours and gases.
☞
Prevent any part of the human body from coming into contact with vacuum.
☞
Attention: At pressures above approximately 1100 mbar the pressure reading
becomes incorrect due to saturation of the pressure transducer.
Release pressure immediately! Risk of bursting!
At pressures above 1060 mbar the
display flashes.
”p Error” is displayed and the controller sounds five blips.
☞
Use only original manufacturer’s spare parts and accessories. Otherwise the
safety and performance of the equipment, as well as the electromagnetic com-
patibility of the equipment might be reduced.
The CE mark or the cTÜVus mark may be voided if not using original manufac-
turer’s spare parts.
• Switching of an in-line valve or a vacuum pump, or opening of a venting valve by
the controller must not lead to a critical dangerous situation under any circum-
stances.
•
Attention: If Auto-Start ”Auto-St.” is preselected, the process starts immedi-
ately after a power failure without pressing any further key. It is the user’s respon-
sibility to ensure that no dangerous status of the system due to the automatic
start-up can occur and to provide appropriate safety measures. If necessary, the
user has to check
prior to starting process control, whether the option ”Auto-
Start” is enabled.
Electronic equipment is never 100% fail-safe. This may lead to an ill-defined sta-
tus of the equipment or of other connected devices. Provide appropriate protective
measures to allow for the possibility of failure and malfunction. The protective meas-
ures must also allow for the requirements of the respective application.
Maintenance and repair
➨
Switch off the vacuum controller.
➨
Disconnect the power supply and wait two minutes before starting maintenance
to allow the capacitors to discharge.
➨
Note: The equipment may be contaminated with chemicals, which have been
processed during operation. Ensure that the equipment is completely decontami-
nated before maintenance commences. Take adequate precautions to protect
NOTICE