Level measurement

Instrument selection within the measuring principle

97

Closed tanks with PMD75B/PMD55B (pressure piping) • Always connect the minus side above the maximum level • Always install Deltabar PMD75B/Deltabar PMD55B below the lower measuring connection so that the lower pressure piping is always filled with liquid • Generally speaking, the installation of separators and discharge valves makes sense to collect deposits, pollution or liquids in pressure piping and to remove them • Calibrate at operating temperature

max.

p 2

min.

p 1

C

Closed vapor-pressurized tanks with PMD75B/ PMD55B (pressure piping) • Always connect the minus side above the maximum level • The filled condensate vessel safeguards constant pressure on the minus side • Always install Deltabar PMD75B/Deltabar PMD55B below the lower measuring connection so that the lower pressure piping is always filled with liquid • In case of measurements in media with a solids separators and discharge valves makes sense to collect deposits and remove them • Calibrate at operating temperature

max.

p 2

min.

p 1