EF200W-C
22
Volume flow
Medium type
Incompressible
Compressible
1)
Reynolds number range
Measured value deviation
Standard
Standard
Re
1
to Re
2
A2
< 10 %
< 10 %
Re
2
to Re
max
A1
< 0.75 %
< 1.0 %
1)
Accuracy specifications valid up to 75 m/s (246 ft/s)
Temperature
• Saturated steam and liquids at room temperature, if T > 100 °C (212 °F) applies:
< 1 °C (1.8 °F)
• Gas:
< 1 % o.r. [K]
• Volume flow if > 70 m/s (230 ft/s):
2 % o.r.
Rise time 50 % (stirred under water, following IEC 60751): 8 s
Mass flow saturated steam
Flow velocity
[m/s (ft/s)]
Temperature
[°C (°F)]
Reynolds number
range
Maximum
measured error
Standard
20 to 50
(66 to 164)
150 (302) or
(423 K)
Re
2
to Re
max
A1
< 1.7 %
Re
1
to Re
2
A2
< 10 %
10 to 70
(33 to 210)
> 140 (284) or
(413 K)
Re
2
to Re
max
A1
< 2 %
Re
1
to Re
2
A2
< 10 %
< 10 (33)
‒
Re > Re
1
A2, A1
5%
Mass flow of superheated steam/gases
1)
Process pressure
[bar abs. (psi abs.)]
Reynolds number
range
Measured value deviation
Standard
1)
< 40 (580)
Re
2
to Re
max
A1
1.7 %
Re
1
to Re
2
A2
10 %
< 120 (1
740)
Re
2
to Re
max
A1
2.6 %
Re
1
to Re
2
A2
10 %
1)
The use of a Cerabar S is required for the measured errors listed in the following section. The measured
error used to calculate the error in the measured pressure is 0.15 %.
Water mass flow
Reynolds number range
Measured value deviation
Standard
Re = Re
2
A1
< 0.85 %
Re
1
to Re
2
A2
< 10 %
1)
Air: NEL40
