Siemens SITRANS P Instrukcja Użytkownika Pobierz pdf (Strona 149)

SITRANS P measuring instruments for pressure

Transmitters for hydrostatic level

MPS series (submersible sensor)

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Siemens FI 01 · 2009

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Determination of the measuring range in case of media with

a density

≠

1000 kg/m

(medium

≠

water)

Calculation of the measuring range:

p =

x g x H

with:

ρ = density of medium

g = local acceleration due to gravity

H = maximum level

Example:

Medium: Diesel fuel = 850 kg/m

Acceleration due to gravity: 9.81 m/s

Start-of-scale : 0 m

Maximum level: 6,2 m

Calculation:

p = 850 kg/m

x 9.81 m/s

x 6.2 m

p = 51698.7 N/m

p = 517 mbar

Transmitter to be ordered:

7MF1570-5ZA02-Z

J1Y: 0 ... 517 mbar; able length e.g. 8 m

+ ρ

1 2 ... 144 145 146 147 148 149 150 151 152 153 154 ... 233 234

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Siemens SITRANS P Instrukcja Użytkownika Strona 149