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Proline Prosonic Flow 91
Repeatability
Installation instructions
Inlet and outlet runs
Length of connecting cable
Endress+Hauser
Verification of Measurement Uncertainty
If required, the device can be supplied with a verification of measurement uncertainty
(measurement report). To certify the uncertainty of the device, a measurement is performed under
reference conditions. Here, the sensors are mounted on a pipe with a nominal diameter of DN 100.
The verification of measurement uncertainty guarantees the following error limits of the device
(at a flow velocity > 0.3 m/s and a Reynolds number > 10000):
Nominal diameter
DN 100
o.r. = of reading
o.f.s. = of full scale value (15 m/s)
Max. ± 0.3% for flow velocities > 0.3 m/s (0.98 ft/s)
10.1.7
Operating conditions: Installation
Any orientation (vertical, horizontal)
Restrictions and additional installation instructions → ä 11
Clamp-on version → ä 12
Shielded cables are offered in the following lengths:
5 m, 10 m, 15 m, 30 m, 60 m
15 feet, 30 feet, 45 feet, 90 feet, 180 feet
Route the cable well clear of electrical machines and switching elements.
Guaranteed error limits of the device
±0.5 % o.r. ± 0.05 % o.f.s.
Technical data
63
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