Siemens SITRANS P Operating Instructions Manual page 57

Installation type B: Pressure transmitter
below the measuring point
H ≤ 7 m (23 ft); with halocarbon oil as the filling liquid, only H
1
Key
p
LRV
p
URV
ρ
FL
ρ
oil
g
H
U
H
O
H
1
For absolute pressure measurements (vacuum), install the pressure transmitter at least at the
height of the remote seal or below it (see installation types C).
SITRANS P320/P420 with 4 to 20 mA/HART
Operating Instructions, 11/2019, A5E44852162-AC
Start of scale value:
p
LRV
Full-scale value:
p
URV
Start of scale value
Full-scale value
Density of the process medium in the container
Density of the filling oil in the capillary line of the remote seal
Acceleration due to gravity
Lower filling level
Upper filling level
Distance container flange to pressure transmitter
5.4 Installation with remote seal
= ρ * g * H + ρ * g * H
FL U oil
= ρ * g * H + ρ * g * H
FL O oil
≤ 4 m(13.1 ft)
1
Installing/mounting
1
1
57