p
ME
Full scale value to be adjusted
ρ
FL
Density of the measured medium in the container
ρ
oil
Density of the filling oil in the capillary line of the remote seal
g
Local gravitational acceleration
H
U
Start of scale value
H
O
Full scale value
H
V
Gland distance
Installation type G
+
+
+
R
+
9
+
X
+
Pressure transmitter for differential
pressure above the upper measuring
point, no vacuum
H
1
≤ 7 m (23 ft), for halocarbon oil, however only H1
≤ 4 m(13.1 ft)
Start of scale value:
p
MA
= ρ
FL
* g * H
U
- ρ
oil
* g * H
V
Full scale value:
p
ME
= ρ
FL
* g * H
O
- ρ
oil
* g * H
V
Installation type H
+
+
Below the lower measuring point
Start of scale value:
p
MA
= ρ
FL
* g * H
U
- ρ
oil
* g * H
V
Full scale value:
p
ME
= ρ
FL
* g * H
O
- ρ
oil
* g * H
V
Installation type J
Installing/mounting
5.4 Installing "Remote seal"
SITRANS P320/P420 (mA/HART)
Operating Instructions, 06/2018, A5E44852162-AA
53