
Key
p
MA
Start of scale value
p
ME
Full-scale value
ρ
FL
Density of the process medium in the container
ρ
oil
Density of the filling oil in the capillary line of the remote seal
g Acceleration due to gravity
H
U
Lower filling level
H
O
Upper filling level
H
V
Gland distance
Installation type G
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
Installing/mounting
4.5 "Remote seal" installation
SITRANS P, DS III series with HART
Operating Instructions, 09/2012, A5E00047092-08 53
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