Device Description; Intended Use - SIKA VH Série Notice D'utilisation

Device description

1 Device description
SIKA flow switches are designed for minimum or maximum monitoring of liquid flows.
Components Flow Switch:
The flow switch consists of a paddle system (1) which has a permanent magnet (2) located at
its upper end. A reed contact (3) is positioned outside the flow above this magnet. A second,
magnet (4) with opposite polarity is used to create a reset force.
The paddle system is moved once it comes into contact with the flow which is to be moni-
tored. The magnet (2) changes its position in relation to the reed contact (3). The contact
opens/closes depending on the contact type ( § 6.1).
As soon as the flow is interrupted, the paddle returns to its original position and the reed
contact opens/closes depending on the contact type ( § 6.1).

1.1 Intended use

SIKA flow switches are designed for minimum or maximum monitoring of liquid flows.
Warning! No safety component!
The flow switches of the series VH... / VK... are not safety components in accordance with
Directive 2006-42-EG (Machine Directive).
 Never use the VH... / VK... as a safety component.
The operational safety of the supplied equipment is only guaranteed if it is operated accord-
ing to its intended use (flow monitoring of liquids). The specified limit values ( § 9
"Technical data") should never be exceeded.
It is your responsibility to select a technology which is suitable for your specific application, to
install it correctly, to carry out tests and to maintain all the components.
Various device versions are manufactured. The respective type plate displays the version of
each device.
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Functional principle:
© SIKA • Ea3000_FlowSwitch • 02/2014
VH... / VK...