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Proline Prosonic Flow 90U, 90W, 91W, 93C, 93U, 93W
Ambient temperature range
Storage temperature
Degree of protection
Shock and vibration resistance
Electromagnetic compatibility
(EMC)
Endress + Hauser
Operating conditions: Environment
• Transmitter Prosonic Flow 90/91/93:
–20 to +60 °C
• Flowrate measuring sensors Prosonic Flow W (clamp-on):
–20 to +80 °C
• Flowrate measuring sensors Prosonic Flow U (clamp-on):
–20 to +60 °C
• Flowrate measuring sensors Prosonic Flow W (Insertion):
–40 to +80 °C
• Prosonic Flow C Inline:
Measuring pipe: –10 to +60 °C
Flowrate measuring sensors Prosonic Flow W (Inline): –40 to +80 °C
• Sound velocity measuring sensors DDU 18:
–40 to +80 °C
• Wall thickness measuring sensor DDU 19:
0 to +60 °C
• Sensor cable PTFE –40 to +170 °C; sensor cable PVC –20 to +70 °C
• In heated piping or piping conveying cold fluids, it is always permissible to insulate the piping completely
with the mounted ultrasonic sensors.
• Install the transmitter at a shady location. Avoid direct sunlight, particularly in warm climatic regions.
The storage temperature corresponds to the ambient temperature range of the measuring transmitter and the
relevant measuring sensors and the corresponding sensor cables (see above).
• Transmitter Prosonic Flow 90/91/93:
IP 67 (NEMA 4X)
• Flowrate measuring sensors Prosonic Flow W (clamp-on):
IP 67 (NEMA 4X), optional IP 68 (NEMA 6P)
• Flowrate measuring sensors Prosonic Flow U (clamp-on):
IP 54
• Flowrate measuring sensors Prosonic Flow W (Insertion):
IP 68 (NEMA 6P)
• Flowrate measuring sensors Prosonic Flow W (Inline):
IP 68 (NEMA 6P)
• Sound velocity measuring sensors DDU 18:
IP 68 (NEMA 6P)
• Wall thickness measuring sensor DDU 19:
IP 67 (NEMA 4X)
In accordance with IEC 68-2-6
Electromagnetic compatibility (EMC requirements) according to EN 61326/A1 (IEC 1326)
"Emission to class A requirements" and NAMUR Recommendation NE 21/43
31
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