Endress+Hauser Proline Prosonic Flow 93 Operating Instructions Manual page 121

Proline Prosonic Flow 93 FOUNDATION Fieldbus
Repeatability
Endress+Hauser
Measured error at the measuring point
The measured error at the measuring point is made up of the measured error of the device
(0.5 % o.r.) and the measured error resulting from the installation conditions on site. Given a flow
velocity > 0.3 m/s (1 ft/s) and a Reynolds number > 10000, the following are typical error limits:
Sensor Nominal diameter
Prosonic P DN 15 (½")
DN 25 to 200 (1 to 8") ±0.5 % o.r. ± 7.5 mm/s
> DN 200 (8")
DN 15 (½")
Prosonic W
DN 50 to 200 (2 to 8") ±0.5 % o.r. ± 7.5 mm/s
> DN 200 (8")
o.r. = of reading
Measurement Report
If required, the device can be supplied with a measurement report. To certify the performance of
the device, a measurement is performed under reference conditions. Here, the sensors are mounted
on a pipe with a nominal diameter of DN 15 (½"), DN 25 (1"), DN 40 (1½"), DN 50 (2") or
DN 100 (4") respectively.
The measurement report guarantees the following error limits of the device
[at a flow velocity > 0.3 m/s (1 ft/s) and a Reynolds number > 10000]:
Sensor Nominal diameter
Prosonic W/P DN 15 (½"), DN 25 (1"), DN 40 (1½"), DN 50 (2")
Prosonic W/P DN 100 (4")
o.r. = of reading
Measured error – Insertion system
Nominal diameter
Device error limits
> DN 200 (8") ±0.5 o.r. ± 3 mm/s
o.r. = of reading
Measurement Report
If required, the device can be supplied with a measurement report. To certify the performance of
the device, a measurement is performed under reference conditions. Here, the sensors are mounted
on a pipe with a nominal diameter of DN 250 (10") (single path) or DN 400 (16") (dual path).
The measurement report guarantees the following error limits of the device
[at a flow velocity > 0.3 m/s (1 ft/s) and a Reynolds number > 10000]:
Sensor
Prosonic W (Insertion)
o.r. = of reading
±0.3 % for flow velocities > 0.3 m/s (1 ft/s)
Device error limits +
±0.5 % o.r. ± 5 mm/s + ±2.5 % o.r.
+ ±1.5 % o.r.
±0.5 % o.r. ± 3 mm/s + ±1.5 % o.r.
±0,5 % v.M. ± 5 mm/s + ±2.5 % v.M.
+ ±1.5 % o.r.
±0.5 % o.r. ± 3 mm/s + ±1.5 % o.r.
Installation-specific
+
error limits (typical)
+ ±1.5 % o.r.
Nominal diameter
DN 250 (10"), DN 400 (16")
Installation-specific Error limits at the

error limits (typical) measuring point (typical)
 ±3 % o.r. ± 5 mm/s
 ±2 % o.r. ± 7.5 mm/s
 ±2 % o.r. ± 3 mm/s
 ±3 % v.M. ± 5 mm/s
 ±2 % o.r. ± 7.5 mm/s
 ±2 % o.r. ± 3 mm/s
Guaranteed error limits of the device
±0.5 % o.r. ± 5 mm/s
±0.5 % o.r. ± 7.5 mm/s
Error limits at the

measuring point (typical)

±2 % o.r. ± 3 mm/s
Guaranteed error limits of the device
±0.5 % o.r. ± 3 mm/s
Technical data
121