Inficon VSA100A User manual

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2tina29e1 (2017-05) VSA100A.om
In all communications with INFICON, please specify the information on the product
nameplate.
This document applies to products with part number:
399-001
The part number (PN) can be found on the product nameplate.
We reserve the right to make technical changes without prior notice.
All dimensions are indicated in mm.
The references to diagrams, e.g. (4/5), consist of the fig. no. and the item no. in
that order.
The Vacuum Switch VSA100A is used as a pressure safety switch in vacuum
systems.
The Vacuum Switch VSA100A is used as a pressure safety switch in vacuum
systems. It is used e.g. to automatically interrupt the gas supply when venting
vacuum systems with a purge gas at a pressure of 3 mbar below atmospheric
pressure.
Unpack the Vacuum Switch VSA100A immediately after delivery, even if it is to be
put into operation at a later date.
Before doing so, examine the shipping container for any external damage. Then
completely remove the packaging materials.
The shipping container and packaging materials must be kept in the event of com-
plaints about damage.
In order to ensure that no damages have been caused during transport carefully
examine Vacuum Switch VSA100A visually.
If any damage is discovered, report it immediately to the forwarding agent and
insurer. If the damaged part has to be replaced, please get in touch with the orders
department.
At a differential pressure of 6 mbar when pumping down or 3 mbar when venting
below atmospheric pressure, an elastic diaphragm actuates a changeover contact
which in turn may be used to directly switch any ancillary equipment. The electrical
connections are placed under a plastic cover.
Vacuum Switch VSA100A complete with cable, 3 m
Operating Manual German
Operating Manual English
Product Identification
Validity
Description
Intended Use
Unpacking and Checking
Design and Function
Scope of Delivery

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Contents
Product Identification 2
Validity 2
Description 2
Intended Use 2
Unpacking and Checking 2
Design and Function 2
Scope of Delivery 2
Contents 3
1Safety 4
1.1 Symbols Used 4
1.2 Personnel Qualifications 4
1.3 General Safety Instructions 4
1.4 Liability and Warranty 4
2Technical Data 5
3Installation 6
3.1 Vacuum Connection 6
3.2 Electrical Connection 6
3.3 Start up 6
4Maintenance 7
5Returning the Product 7
6Disposal 8
EU Declaration of Conformity 9
For cross-references within this document, the symbol (→XY) is used.

4tina29e1 (2017-05) VSA100A.om
1 Safety
DANGER
Information on preventing any kind of physical injury.
WARNING
Information on preventing extensive equipment and environmental damage.
Caution
Information on correct handling or use. Disregard can lead to malfunctions or
minor equipment damage.
Notice
Skilled personnel
All work described in this document may only be carried out by persons who
have suitable technical training and the necessary experience or who have been
instructed by the end-user of the product.
•Adhere to the applicable regulations and take the necessary precautions for the
process media used.
Consider possible reactions between the materials (→5) and the process
media.
•Adhere to the applicable regulations and take the necessary precautions for all
work you are going to do and consider the safety instructions in this document.
•Before beginning to work, find out whether any vacuum components are con-
taminated. Adhere to the relevant regulations and take the necessary pre-
cautions when handling contaminated parts.
Communicate the safety instructions to other users.
INFICON assumes no liability and the warranty becomes null and void if the end-
user or third parties
•disregard the information in this document
•use the product in a non-conforming manner
•make any kind of changes (modifications, alterations etc.) to the product
•use the product with accessories not listed in the corresponding product
documentation.
1.1 Symbols Used
Symbols for residual risks
1.2 Personnel Qualifications
1.3 General Safety
Instructions
1.4 Liability and Warranty

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2 Technical Data
Switching pressure 6 mbar
( below atmospheric pressure)
Return switching pressure 3 mbar
( below atmospheric pressure)
Switching inaccuracy ±2 mbar
Max. operating pressure (abs.) 2000 mbar
Operating temperature 0 to 85 °C
Helium permeation <1·10-6 mbar·l·s-1
Switching contact changeover contact
Switching capacity 100 mA / 24 V (ac)
30 mA / 24 V (dc)
Electrical connection standard cable 3 m
Vacuum connection DN 16 KF
Protection type IP 44
Materials in contact with the medium stainless steel 1.4305, 1.4310
stainless steel 1.4300 PTFE coated
EPDM
Internal volume 2
cm
3
Weight 315 g
Fig. 1 Dimensional diagram VSA100A
Dimensions [mm]

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3 Installation
The VSA100A is connected to the vacuum system via a DN 16 KF small flange.
The VSA100A should preferably be mounted standing on its flange. Inclined
mounting is also permissible, including the horizontal position. Downward installa-
tion is not permissible because in such a case condensate may collect in the pres-
sure switch. This affects the measurements and may damage the pressure switch.
Fig. 2 Contact assignment of microswitch
The contact assignment is given in Fig. 2.
The VSA100A is supplied with a connected 3 m long standard cable. The length of
this cable may be changed.
The electrical connection terminals and the strain relief are accessible after un-
screwing the cross head screws and folding out the cap.
The contacts at the VSA100A are marked 1, 2 and 3 (see contact assignment
Fig. 2).
The supply line has to be fuse-protected with max. 100 mA by the end-user.
Adhere to the applicable regulations and take the necessary precautions for all
work you are going to do.
When leak detecting with a helium leak detector, spraying the pressure switch with
helium may result in a helium proof. This is in general not due to a leak of the
VSA100A, but is permeation of helium through the EPDM diaphragm.
3.1 Vacuum Connection
3.2 Electrical Connection
3.3 Start up

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4 Maintenance
The VSA100A requires no maintenance
5 Returning the Product
WARNING
WARNING: forwarding contaminated products
Products returned to INFICON for service or repair should preferably
be free of harmful substances (e.g. radioactive, toxic, caustic or
microbiological).
Adhere to the forwarding regulations of all involved countries and
forwarding companies and enclose a completed declaration of con-
tamination (Form under www.inficon.com).
Products that are not clearly declared as "free of harmful substances" are de-
contaminated at the expense of the customer.
When returning a product to INFICON, put it in a tight and impact resistant
package.

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6 Disposal
DANGER
DANGER: contaminated parts
Contaminated parts can be detrimental to health.
Before beginning to work, find out whether any parts are contami-
nated. Adhere to the relevant regulations and take the necessary
precautions when handling contaminated parts.
WARNING
WARNING: substances detrimental to the environment
Electronic components must be disposed of in accordance with special
regulations.
Dispose of such products in accordance with the relevant local regu-
lations.
After disassembling the product, separate its components according to the follow-
ing criteria:
Contaminated components (radioactive, toxic, caustic, or biological hazard etc.)
must be decontaminated in accordance with the relevant national regulations,
separated according to their materials, and recycled.
Such components must be separated according to their materials and recycled.
Separating the components
Contaminated components
Other components

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EU Declaration of Conformity
We, INFICON, hereby declare that the equipment mentioned below complies with
the provisions of the following directives:
•2014/35/EU, OJ L 96/357, 29.3.2014
(Low Voltage Directive; Directive relating to electrical equipment designed for use within certain
voltage limits)
•2014/30/EU, OJ L 96/79, 29.3.2014
(EMC Directive; Directive relating to electromagnetic compatibility)
•2011/65/EU, OJ L 174/88, 1.7.2011
(RoHS Directive; Directive on the restriction of the use of certain hazardous substances in electrical
and electronic equipment)
Vacuum Switch
VSA100A
Harmonized and international/national standards and specifications:
•EN 61000-6-2:2005
(EMC: generic immunity standard for industrial environments)
•EN 61000-6-3:2007 + A1:2011
(EMC: generic emission standard for residential, commercial and light-industrial environments)
•EN 61010-1:2010
(Safety requirements for electrical equipment for measurement, control and laboratory use)
•EN 61326-1:2013; Group 1, Class B
(EMC requirements for electrical equipment for measurement, control and laboratory use)
INFICON AG, Alte Landstraße 6, LI-9496 Balzers
2 May 2017 2 May 2017
Dr. Bernhard Andreaus
Director Product Evolution Alex Nef Product Manager
Product
Standards
Manufacturer / Signatures

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Notes

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Notes

LI–9496 Balzers
Liechtenstein
Tel +423 / 388 3111
Fax +423 / 388 3700
Original: German tina29d1 (2017-05) [email protected]
www.inficon.com
t i na29e1