Performance Characteristics; Reference Operating Conditions; Maximum Measured Error - Endress+Hauser Proline Prosonic Flow 90U Technical Information

Reference operating
conditions

Maximum measured error

24

Performance characteristics

• Medium temperature range: +28 °C ± 2 K
• Ambient temperature range: +22 °C ± 2 K
• Warm-up period: 30 minutes
Installation:
• Inlet run >10 x DN
• Outlet run > 5 x DN
• Measuring sensors and transmitter are grounded.
• The measuring sensors are properly mounted.
For flow velocities of > 0.3 m/s and a Reynolds number of >10000, the system accuracy is:
Version Guaranteed error limits
Prosonic Flow W and U: < DN 50
– Clamp-on DN 50 to
– Insertion 200
> DN 200
Prosonic Flow W and U: U
– Clamp-on W
Prosonic Flow W:
– Insertion
Prosonic Flow C Inline
Prosonic Flow C Inline
o.r. = of reading
o.f.s. = of full scale value
(1)
The basic accuracy of the measuring system is 0.5%.
The dry calibration represents additional uncertainty due to mounting and actual pipe properties.
This additional uncertainty is better than 1.5% typically.
(2)
Accuracy verification is carried out on a DN 50 or DN 100 pipe for the clamp-on version,
on a DN 250 pipe for the Insertion version (single-path version) and on a DN 400 pipe for the
Insertion version (dual-path version). The verification applies under reference operating conditions.
(3)
Maximum full scale value: 15 m/s
(4)
Maximum full scale value: 10 m/s
(5)
Only when used on plastic pipes
Proline Prosonic Flow 90U, 90W, 91W, 93C, 93U, 93W
(5)
± ±
2.0% o.r. plus 0.1% o.f.s
± ±
2.0% o.r. plus 0.05% o.f.s
± ±
2.0% o.r. plus 0.02% o.f.s
(1)
See note
± ±
0.5% o.r. plus 0.1% o.f.s
± ±
0.5% o.r. plus 0.05% o.f.s
± ±
0.5% o.r. plus 0.02% o.f.s
± ±
1.5% o.r. plus 0.02% o.f.s
± ±
0.5% o.r. plus 0.02% o.f.s
Report
(4)
A report is not issued. The value
(3)
given are typical values.
(3)
(4) (2)
Verification of accuracy
(3)
(3) (2)
Verification of accuracy
(4)
Calibration confirmation
(4)
Calibration report
Endress + Hauser