SITRANS P measuring instruments for pressure
Remote seals
Measuring setups without remote seals
2/185
Siemens FI 01 · 2009
2
■
Overview
Notes
• For the separation layer measurement, the separation layer
has to be positioned between the two spigots.
Also you must make sure that the level in the container is al-
ways above the top spigot.
• When measuring density, make sure that the level of the me-
dium remains constant. The level should be above the top
spigot
■
Dimensional drawings
Pressure transmitters for differential pressure, for flanging
Measuring setups for open containers
r
+
H
o
Hu
Level measurement
S
t
ar
t
-
o
f-
sc
ale:
p
MA
=
r
· g · H
U
Full-
sc
ale:
p
ME
=
r
· g · H
O
Legend
p
MA
S
t
ar
t
-
o
f-
sc
ale
v
alue
to
be
s
e
t
p
ME
Full-
sc
ale
v
alue
to
be
s
e
t
r
De
ns
i
t
y
o
f medium i
n
v
e
ss
el
g
L
oc
al a
cc
elera
t
i
on
due
to
gra
v
i
t
y
H
U
S
t
ar
t
-
o
f-
sc
ale
v
alue
H
O
Full-
sc
ale
v
alue
Full-
sc
ale
v
alue
S
t
ar
t
-
o
f-
sc
ale
v
alue
r
r
H
u
2
1
H
o
+
Separation layer measurement
S
t
ar
t
-
o
f-
sc
ale:
p
MA
= g · (H
U
·
r
1
+
(H
O
-
H
U
) ·
r
2
)
Full-
sc
ale:
p
ME
=
r
1
· g · H
O
Legend
p
MA
S
t
ar
t
-
o
f-
sc
ale
v
alue
to
be
s
e
t
p
ME
Full-
sc
ale
v
alue
to
be
s
e
t
r
1
De
ns
i
t
y
o
f hea
v
ier liquid
r
2
De
ns
i
t
y
o
f ligh
t
er liquid
g
L
oc
al a
cc
elera
t
i
on
due
to
gra
v
i
t
y
H
U
S
t
ar
t
-
o
f-
sc
ale
v
alue
H
O
Full-
sc
ale
v
alue
C
onst
a
nt
le
v
el
= full-
sc
ale
v
alue
S
t
ar
t
-
o
f-
sc
ale
v
alue
Se
p
ara
t
i
on
layer
H
o
+
r
Density measurement
S
t
ar
t
-
o
f-
sc
ale:
p
MA
=
r
M
I
N
· g · H
O
Full-
sc
ale:
p
ME
=
r
MAX
· g · H
O
Legende
p
MA
S
t
ar
t
-
o
f-
sc
ale
v
alue
to
be
s
e
t
p
ME
Full-
sc
ale
v
alue
to
be
s
e
t
r
M
I
N
Mi
n
imum de
ns
i
t
y
o
f medium i
n
v
e
ss
el
r
MAX
Maximum de
ns
i
t
y
o
f medium i
n
v
e
ss
el
g
L
oc
al a
cc
elera
t
i
on
due
to
gra
v
i
t
y
H
O
Full-
sc
ale
v
alue i
n
m
C
onst
a
nt
le
v
el
© Siemens AG 2008