2
Safety instructions
Before you install the VZ...AL, 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 VZ...AL 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.
The customer performs customer- and application-specific tests to ensure that the product
is suitable for the intended use. 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
VZ...AL must hold a relevant qualification. This can be based on training or relevant tui-
tion.
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.
General safety instructions:
In all work, the existing national regulations for accident prevention and safety in the
workplace must be complied with. Any internal regulations of the operator must also be
complied with, even if these are not mentioned in this manual.
Degree of protection according to EN 60529:
Ensure that the ambient conditions at the site of use does not exceed the requirements
for the stated protection rating (
Only use the VZ...AL if it is in perfect condition. Damaged or faulty devices must be
checked without delay and, if necessary, replaced.
Use only suitable tools for mounting, connecting and disassembly.
Do not remove or obliterate type plates or other markings on the device, as otherwise the
warranty is rendered null and void.
Special safety instructions:
Hold the volume sensor during fitting and in transport only by its housing, never by the
plugged connector socket!
Only the housing of the flow sensor VZ 2 AL can be dismantled for cleaning, the other flow
sensors must under no circumstances be dismantled as this will damage the instrument!
When removing the upper section of the flow sensor VZ 2 AL, do not use screwdrivers or
similar tools as levers. Pliers must not be used to remove the gear wheels from the hous-
ing.
