Ambient conditions, Operating conditions, Notice – VACUUBRAND VNC 2 E User Manual
Page 8
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.: 999199 / 28/11/2012
• Check the power source and the equipment’s rating plate to be sure that the
power source and the equipment match in voltage, phase, and frequency.
• In case of residues or aggressive or condensable media install a gas washing
bottle if necessary.
• Use inert gas for venting if necessary. Avoid overpressure of more than 0.2 bar in
case inert gas is connected.
The VNC 2E is equipped with a
short circuit proof wide range power supply with
an integrated overload protection. The VNC 2E is equipped with a fuse T8A.
Avoid high heat supply (e. g. due to hot process gases).
Connect the equipment to the vacuum application.
Position the controller and its vacuum connection lines in such a way that conden-
sate cannot flow towards the pressure transducer.
Allow the equipment to equilibrate to ambient temperature if you bring it from cold
environment into a room prior to operation. Notice if there is water condensation on
cold surfaces.
Comply with
national safety regulations and safety requirements concerning the
use of vacuum and electrical equipment. Comply with all
applicable and relevant
safety requirements (regulations and guidelines), implement the required ac-
tions and adopt suitable safety measures.
Do not connect to a VACUUBRAND NT VARIO pump or pumping unit.
Ambient conditions
☞
Pay attention to the
permissible maximum ambient and gas temperatures
(see „Technical data“, pg. 12).
• Adopt suitable measures in case of differences from recommended conditions,
e.g., using the equipment outdoors, conductive pollution or external condensa-
tion.
To the best of our knowledge the equipment is in compliance with the requirements
of the applicable EC-directives and harmonized standards (see ”Declaration of con-
formity”) with regard to design, type and model. Directive EN 61010-1 gives in detail
conditions under which the equipment can be operated safely (see also IP degree of
protection, pg. 12).
Operating conditions
➨
This device is not approved for operation in potentially explosive atmospheres.
Do not operate the device in potentially explosive atmospheres.
➨
Controllers without the ”
`
” mark on the rating plate are not approved for opera-
tion with dangerous or explosive gases or with potentially explosive or inflamma-
ble substances. Do not operate the controller with dangerous or explosive gases
or with potentially explosive or inflammable substances.
➨
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 „
NOTICE
NOTICE