Wika BNA Instrukcja Użytkownika Pobierz pdf (Strona 6)

WIKA operating instructions bypass level indicator model BNA

112195.01 11/2012 GB/D

The maximum values specied on the product label

must be observed to guarantee trouble-free operation. At

temperatures over 60 °C, a warning sign has to be attached

to anges, tubes, case etc., warning explicitly of the danger

of burning and suitable protective measures must also be

taken.

The oat has been designed for the medium density

specied on the product label. When the oat is used in

liquids with another specic weight, deviations can occur

during measurement.

DANGER!

Work in containers involves the danger of intoxication and

suocation. No work is allowed to be carried out unless by

taking suitable personal protective measures (e.g. respirato-

ry protection apparatus, protective outt etc.).

Danger of explosion

Inside the container, there is danger of an explosive atmos-

phere. Corresponding measures for preventing sparking

should be taken. No work is allowed in this area unless by

technically skilled sta in accordance with applicable safety

regulations.

2. Functional description and design

WIKA bypass level indicators work according to the principle of

communicating vessels. The bypass vessel contains a oat with a built-

in permanent magnet. This rises and falls with the level of the medium.

Optical and electrical level indicators or limit switches are mounted

to the outside of the bypass tube and actuated by the magnetic eld.

Evaluation of the lling level by guided radar is also possible. The tting

1. Safety instructions / 2. Functional description ...

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Wika BNA Instrukcja Użytkownika Strona 6