Density; Pressure - Siemens SITRANS FC620 Operating Instructions Manual

FC6x0
Operating conditions

9.1.2 Density

Meter size
FCS600 DN2
FCS600 DN4
FCS600 DN15
FCS600 DN25
FCS600 DN40
FCS600 DN65
Density measuring range for NTEP custody transfer approval
Tab. 5: Density measuring ranges (C16)
Option
C16
Density of gases
Rather than being measured directly, density of gas is usually calculated using its
reference density, process fluid temperature and process pressure.

9.1.3 Pressure

The maximum allowed process pressure depends on the selected process connection
and process temperature.
The given process temperature and process pressure ranges are calculated and
approved without corrosion or erosion effects.
The following diagrams shows the process pressure as a function of process temperature
as well as the process connection used (type and size of process connection).
Calculations for ASME flanges are based on ASME B16.5 Material group 2.2 (316/316L
dual certified).
40 / 194
Measuring range of density
0,74 – 1,40 (46 – 87)
A5E52748375-AA, 2023/09
Measuring range of density
in kg/l (lb/ft³)
0 – 5 (0 – 312)
0 – 2,5 (0 – 156)
in kg/l (lb/ft³)
Process conditions