Prosonic Flow 92
Endress+Hauser 9
Cable specifications Sensor cable:
• Special type coaxial cable.
• Use the ready-to-use cables supplied by E+H.
• The cables are available in lengths of 5 m and 10 m.
Mains connector adapters:
• Country specific mains connector adapters for mains supply connection.
Operation in zones of severe electrical interference:
The measuring device complies with the general safety requirements in accordance with
EN 61010, the EMC requirements of EN 61326.
Supply voltage Transmitter:
• Built-in battery
Special type Ni-Cd battery
Continuous operation time up to 5 hours (backlight OFF)
Recharching time 3 hours (power adaptor used)
• Special type power adaptor
100...240 V AC, 47...63 Hz
Flow measuring sensors:
• powered by the transmitter
Power consumption DC: < 12 W (incl. sensor)
Power supply failure Memory backup with lithium battery (lifetime approx. 5 years)
Performance characteristics
Reference operating
conditions
• Liquid temperature: +28 °C ± 2 K
• Ambient temperature: +22 °C ± 2 K
• Warm-up period: 30 minutes
Installation:
• Inlet run > 10 x DN
• Outlet run > 5 x DN
• Sensors grounded.
• The measuring sensors are correctly installed.
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 uncer-
tainty for the measurement. The resulting accuracy of the measurement therefore is better than
2 % typically.
The zero point instability is < 10 mm/s.
Repeatability ± 0.3 % for flow velocities > 0.5 m/s
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