WIKA BNA - Design and Function; Description; Scope of Delivery; Safety

EN
Operating instructions bypass level indicator, model BNA
001958.03 03/2019 EN/DE
5
2. Design and function
2.1 Description
The bypass level indicators work according to the principle of
communicating vessels. The bypass vessel contains a oat with a built-in
permanent magnet. This changes its position depending on the level
of the medium. Magnetic indicators, switches and level sensors are
mounted to the outside of the bypass tube and actuated by the magnetic
eld. Measurement of the level by guided wave radar is also possible.
The tting of these options is carried out according to customer
speciactions in the factory. The principle structure is described in chapter
5.3 “Commissioning”. Customer-specic versions are manufactured to order.
2.2 Scope of delivery
Cross-check scope of delivery with delivery note.
3. Safety
3.1 Explanation of symbols
DANGER!
... indicates a directly dangerous situation resulting in serious
injury or death, if not avoided.
WARNING!
... indicates a potentially dangerous situation that can result in
serious injury or death, if not avoided.
CAUTION!
... indicates a potentially dangerous situation that can result in
light injuries or damage to property or the environment, if not
avoided.
2. Design and function / 3. Safety