WIKA BNA - Handbuch (Seite 7)

GB
WIKA operating instructions bypass level indicator model BNA 7
112195.01 11/2012 GB/D
of these options is carried out according to specific customer wishes in
the factory.
The principle structure is shown in figure 1. Customer-specific versions
are executed to order.
2. Functional description and ... / 3. Installation and ...
Transport and storage
Transport and storage for bypass level indicators are only allowed in
designed packaging.
Removal of transport packaging and transportation safety devices
Remove the bypass level indicator carefully from the transport
packaging.
Please observe the instructions given on the shipment packaging and
remove all transportation safety devices before taking out the bypass
level indicator.
Never use force to remove the bypass level indicator from the
packaging!
Before fitting, loosen the float attached on the outside of the bypass
level indicator from the bypass vessel. Make sure that all parts of the
packaging have been removed and the float can move freely in the
bypass reference vessel.
3. Installation and commissioning
Remove the protective caps on the process connections
before fitting. Check the connection dimensions (centre to
centre distance) and the alignment of the process connec-
tions on the vessel. There must not be any mechanical
damage on the sealing faces of the vessel or the bypass
level indicator.
The magnetic roller display and any installed magnetic switches must
be aligned. To do this, slowly move the enclosed float from bottom to
top on the magnetic roller display and then back down again. Magnetic
switches must be aligned on the basis of the same principle. In the case
of bypass level indicators with insulation and magnetic roller displays