WIKA BNA - Handbuch (Seite 15)

GB
WIKA operating instructions bypass level indicator model BNA 15
112195.01 11/2012 GB/D
4. Maintenance
When used properly, bypass level indicators work maintenance-free.
They must be subjected to visual inspection within the context of regular
servicing, however, and included in the tank pressure test. (The test
pressure must not exceed the value specified on the product label!)
If the liquid to be measured contains dirt particles that could be
deposited in the bypass level indicator, the operator should clean the
bypass chamber at regular intervals.
4. Maintenance
DANGER!
Work on containers involves the danger of intoxication and
suffocation. No work is allowed to be carried out unless
by taking suitable personal protective measures (e.g.
respiratory protection apparatus, protective outfit etc.). The
bypass vessel can be under pressure. There might be a hot,
poisonous, caustic or explosive medium inside the bypass
vessel. Potential injury hazard due to splashing liquid,
burns to hands, arms, feet and face are possible, as well as
chemical burns, poisoning or explosions. Vessel pressure
has to be released before opening.
Perfect functioning of the bypass level indicator can only be
guaranteed when original accessories and spare parts are
used.