Endress+Hauser prosonic flow 92, Руководство по эксплуатации

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Prosonic Flow 92 10 Technical data
Hauser 57
Maximum measured error For flow velocities between 0.5 m/s and 7 m/s and a Reynolds number of >10000, the
system accuracy is:
± 0.5 % o.r. (of current reading)
The system is dry calibrated. The calibration factor by dry calibration is calculated
based on the actual pipe and liquid properties. This dry calibration procedure results in
an additional uncertainty for the measurement. The resulting accuracy of the measure-
ment therefore is better than 2 % typically.
The zero point instability is < 10 mm/s.
Repeatability Max. ± 0.3% for flow velocities > 0.5 m/s
10.1.7 Operating conditions
Installation
Installation instructions Any orientation (vertical, horizontal)
Restrictions and additional installation instructions
→
Page 14 ff.
Inlet and outlet run see Page 15
Length of connecting
cable Shielded cables are offered in the following lengths:
5 m and 10 m
!
Note!
Route the cable well clear of electrical machines and switching elements.
Environment
Ambient temperature
range • Transmitter Prosonic Flow 92:
−
10...+45°C
• Flow measuring sensors Prosonic Flow W, U:
–20...+60 °C
• Flow measuring sensors Prosonic Flow P:
0...+170 °C
• Sensor cable PVC:
–20...+70 °C
• Sensor cable PTFE (only for Prosonic Flow W/P):
–40...+170 °C
Avoid direct sunlight, particularly in warm climatic regions.
Storage temperature The storage temperature corresponds to the operating temperature range of the trans-
mitter and the appropriate flow measuring sensors and the corresponding sensor cable
(see above).