
Vacuum Controller with Control Unit VC900 Safety
Translation of original Operating Instructions, English KNF 304811-304814 03/16 7
3. Safety
The VC 900 is built according to the generally recognized rules of
technology and in accordance with the pertinent occupational safety
and accident prevention regulations. Nevertheless, potential dan-
gers during use can result in injuries to the user or others or in
damage to the pump systems or other property.
Only use the VC 900 when it is in a good technical and proper
working order, in accordance with its intended use, observing the
safety advice within the Operating Instructions, at all times.
Make sure that only trained and instructed personnel or specially
trained personnel work on the VC 900. This especially applies to
assembly, connection and servicing work.
Make sure that all personnel have read and understood the Operat-
ing Instructions, especially the "Safety" chapter.
Observe the accident prevention and safety regulations when
performing any work on the VC 900 and during operation
When working with dangerous media, observe the safety regula-
tions for handling such media.
Be aware that the VC 900 is not designed to be explosion-proof.
When ventilating the VC 900 with air or inert gas, be sure to prevent
formation of reactive or explosive media. The maximum permissible
operating pressure at the ventilation connection (Fig. 1/14, p. 12) is
0.1 bar g.
All replacement parts should be properly stored and disposed of in
accordance with the applicable environmental protection regula-
tions. Ensure adherence to the pertinent national and international
regulations. This especially applies to parts contaminated with toxic
substances.
The VC 900 conforms to the Directive 2011/65/EU (RoHS2).
The VC 900 conforms to the safety regulations of the EC Directive
2014/30/EU concerning Electromagnetic Compatibility and the EC
Directive 2014/35/EU relating to electrical equipment designed for
use within certain voltage limits. The requirements of the following
harmonised standards have been used:
DIN EN 61326-1 –Class A
DIN EN 61010-1
DIN EN 50581
The VC 900 corresponds to IEC 664:
the overvoltage category II
the pollution degree 2
All repairs to the VC 900 must be carried out by the relevant KNF
Customer Service team.
Housings with voltage-caring parts may be opened by technical
personnel only.
Use only the original KNF power supply that was delivered.
Working in a
safety-conscious manner
Customer service and
repairs