8
TECHNICAL DATA
98
SITRANS FX330
www.siemens.com/flow
05/2016 - A5E36751269-AA
Measuring accuracy
Reference condition
Reference conditions
Water at +20
°
C / +68
°
F
Air at +20
°
C / +68
°
F and 1.013 bara / 14.7 psia
Maximum measuring error
Volume flow
(liquid)
±
0.75% of measured value (Re
≥
20000)
±
2.0% of measured value (10000 < Re < 20000)
Volume flow
(gases and steam)
±
1.0% of measured value (Re
≥
20000)
1
±
2.0% of measured value (10000 < Re < 20000)
1
Mass flow
(gases and steam)
±
1.5% of measured value (Re
≥
20000)
±
2.5% of measured value (10000 < Re < 20000)
Mass flow
(liquid / water)
±
1.5% of measured value (Re
≥
20000)
±
2.5% of measured value (10000 < Re < 20000)
Normalised volume flow
(gas)
±
1.5% of measured value (Re
≥
20000)
±
2.5% of measured value (10000 < Re < 20000)
Repeatability
(volume flow)
±
0.1% of measured value
1
The maximum error of measurement refers to measurement at an operating pressure >65% of the full scale value of
the applied pressure sensor.
Operating conditions
Temperature
Medium temperature
-40
…
+240
°
C / -40
…
+465
°
F
Ambient temperature
Non-Ex: -40
…
+85
°
C / -40
…
+185
°
F
Ex: -40...+65
°
C / -40...+140
°
F
Storage temperature
-40...+85
°
C / -40...+185
°
F
Pressure
Medium pressure
Max. 100 bar / 1450 psi (higher pressures on request)
Ambient pressure
Atmosphere
Media properties
Density
Taken into consideration when sizing.
Viscosity
< 10 cP
Reynold's number
> 10000
Recommended flow velocities
Liquids
0.25
…
7 m/s / 0.82
…
23 ft/s (optional up to 10 m/s / 32.8 ft/s taking cavitation into
account)
Gases and steam
2.0
…
80 m/s / 6.6
…
262.5 ft/s
DN15: 3.0
…
45 m/s / 9.8
…
148 ft/s; DN25: 2.0
…
70 m/s / 6.6
…
230 ft/s
For further information refer to
Intended use
on page 7.