Performance Characteristics - Endress+Hauser Proline Prosonic Flow 93T Portable Operating Instructions Manual

Proline Prosonic Flow 93T Portable
Connecting cable (sensor/
transmitter)
!
Potential equalization
Reference operating
conditions
Maximum measured error
Endress+Hauser
Only use the connecting cables supplied by Endress+Hauser.
Different versions of the connecting cables are available  ä 49.
• Cable material: PTFE
• Cable lengths: 5 m (16.4 feet), 10 m (32.8 feet)
Note!
To ensure correct measuring results, route the connecting cable well clear of electrical machines
and switching elements.
For potential equalization, no special measures are necessary.
10.1.6

Performance characteristics

• Fluid temperature:
+20 to +30 °C
• Ambient temperature: +22 °C ± 2 K
• Warm-up period: 30 minutes
Installation:
• Sensors and transmitter are grounded.
• The measuring sensors are correctly installed.
The measured error depends on a number of factors. A distinction is made between the measured
error of the device (Prosonic Flow 93T = 0.5 % of the measured value) and an additional
installation-specific measured error (typically 1.5 % of the measured value) that is independent of
the device.
The installation-specific measured error depends on the installation conditions on site, such as the
nominal diameter, wall thickness, real pipe geometry, fluid, etc.
The sum of the two measured errors is the measured error at the measuring point.
%
3.5
2.0
0.5
Fig. 44: Example of the measured error in a pipe with a nominal diameter DN > 200 (8")
a Measured error of the device (0.5 % o.r. ± 3 mm/s)
b Measured error due to installation conditions (typically 1.5 % o.r.)
c Measured error at the measuring point: 0.5 % o.r. ± 3 mm/s + 1.5 % o.r. = 2 % o.r. ± 3 mm/s
b
0 2 4 6 8
c
a
10 12 m/s
Technical data
A0011347
59