Endress+Hauser Proline Prosonic Flow P 500 - Page 39

Proline Prosonic Flow P 500
Endress+Hauser 39
The installation-specific measurement error depends on the installation conditions on site, such as
the nominal diameter, wall thickness, real pipe geometry or medium. The sum of the two
measurement errors is the measurement error at the measuring point.
Nominal diameter Maximum permissible
errors for device
+ Installation-specific
maximum permissible
errors (typical)
→ Maximum permissible
errors at the
measuring point
(typical)
Field calibration
1)
DN 15 (½") ±0.5% o.r. ±
5 mm/s (0.20 in/s)
+ ±2.5% o.r. → ±3% o.r. ±
5 mm/s (0.20 in/s)
±0.5% o.r. ±
5 mm/s (0.20 in/s)
DN 25 to 200 (1 to 8") ±0.5% o.r. ±
7.5 mm/s (0.30 in/s)
+ ±1.5% o.r. → ±2% o.r. ±
7.5 mm/s (0.30 in/s)
±0.5% o.r. ±
7.5 mm/s (0.30 in/s)
> DN 200 (8") ±0.5% o.r. ±
3 mm/s (0.12 in/s)
+ ±1.5% o.r. → ±2% o.r. ±
3 mm/s (0.12 in/s)
±0.5% o.r. ±
3 mm/s (0.12 in/s)
1) Adjustment in relation to a reference value with correction values written back to the transmitter
The specification applies to Reynolds numbers Re ≥ 10 000 and flow velocities
v > 0.3 m/s (1 ft/s). Larger measurement errors may occur for Reynolds numbers Re < 10 000
and flow velocities v < 0.3 m/s (1 ft/s).
0
0.5
2.0
3.5
[%]
[m/s]
2 4 6 8 10 12
2
3
1
[ft/s]
14
0 2010 30 40
50
A0041972
 31 Example of the absolute value of the measurement error in a pipe with nominal diameter DN > 200 (8")
1 Measurement error of measuring device: ±0.5% o.r. ± 3 mm/s (0.12 in/s)
2 Measurement error due to installation conditions: typically ±1.5% o.r.
3 Measurement error at the measuring point:
±0.5% o.r. ± 3 mm/s (0.12 in/s)±1.5% o.r. = ±2% o.r. ± 3 mm/s (0.12 in/s)
Measurement report
If required, the device can be supplied with a factory measurement report. A measurement is
performed under reference conditions to verify the performance of the device. The sensors are
mounted on an appropriate stainless steel pipe in this case.
The measurement report shows the following maximum permissible errors:
Sensor type Nominal diameter Maximum permissible errors for
device
C-500 (5 MHz) DN 50 (2") ±0.5% o.r. ± 5 mm/s (0.20 in/s)
C-200 (2 MHz)
C-100 (1 MHz)
C-050 (0.5 MHz)
CH-100 (1 MHz)
DN 100 (4") ±0.5% o.r. ± 7.5 mm/s (0.30 in/s)
C-030 (0.3 MHz)
CH-050 (0.5 MHz)
DN 250 (10") ±0.5% o.r. ± 7.5 mm/s (0.30 in/s)