Siemens SITRANS P - Manual (Page 149)

SITRANS P measuring instruments for pressure
Transmitters for hydrostatic level
MPS series (submersible sensor)
2/149 Siemens FI 01 · 2009
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More information
Determination of the measuring range in case of media with
a density
≠
1000 kg/m 3 (medium
≠
water)
Calculation of the measuring range:
p =
ρ
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 3
Acceleration due to gravity: 9.81 m/s
2
Start-of-scale : 0 m
Maximum level: 6,2 m
Calculation:
p = 850 kg/m 3 x 9.81 m/s 2 x 6.2 m
p = 51698.7 N/m
2
p = 517 mbar
Transmitter to be ordered:
7MF1570-5ZA02-Z
J1Y: 0 ... 517 mbar; able length e.g. 8 m
+ ρ
© Siemens AG 2008