Savety Instructions - Sika VKX Serie Betriebsanleitung

VKX
1.1.1 Reed contakt - Switching of inductive or capacitive loads
CAUTION! Destruction or damage of reed contact!
Take notice of the max. contact loads mentioned on the specification plate!
The max. contact loads mentioned on the type plate (switching voltage, switching current
and switching capacity) refer to pure ohmic loads and may not be exceeded under any cir-
cumstances.
High voltage and current peaks can occur, particularly when switching inductive or capacitive
loads (e.g. relay coil, capacitors). Even if the overload is brief, this can destroy (welding the
contacts) or damage (reduced lifespan) the reed contact.
Only use protection methods which be appropriate and checked.
Protection method when electrical connection of reed contacts:
The following protective circuits are basically possible: current limiting resistors, RC cir-
cuits, freewheeling diodes, suppression diodes, varistors or a combination of these.
Please verify the effectiveness of the chosen protection method in accordance with the spe-
cific loads involved.
2

Savety instructions

Before you install the VKX, read through this operating manual carefully. If the instructions
contained within it are not followed, in particular the safety guidelines, this could result in
danger for people, the environment, and the device and the system it is connected to.
The VKX correspond to the state-of-the-art technology. This concerns the accuracy, the
operating mode and the safe operation of the device.
In order to guarantee that the device operates safely, the operator must act competently and
be conscious of safety issues.
SiKA provides support for the use of its products either personally or via relevant literature.
The customer verifies that our product is fit for purpose based on our technical information.
With this verification all hazards and risks are transferred to our customers; our warranty is
not valid.
Qualified personnel
The personnel who are charged for the installation, operation and maintenance of the
VKX must hold a relevant qualification. This can be based on training or relevant tuition.
The personnel must be aware of this operating manual and have access to it at all times.
The electrical connection should only be carried out by a fully qualified electrician.
Technical changes reserved
Savety instructions
- 17 -