Input; Measured Variable; Measuring Range; Operable Flow Range - Endress+Hauser Proline Prosonic Flow 90U Technical Information

Measured variable

Measuring range

Operable flow range

Input signal

Output signal

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System overview
Prosonic Flow W
Clamp-on version
Prosonic Flow U
Clamp-on version
Prosonic Flow W
Insertion version
Prosonic Flow C Inline
Calibrated measuring pipe
with Prosonic Flow W
sensors
Ranges of application:
Warm and cold water and similar liquids

Input

Flow velocity (transit time difference proportional to flow velocity)
Typically v = 0 to 15 m/s with the specified measuring accuracy for Prosonic Flow W
Typically v = 0 to 10 m/s with the specified measuring accuracy for Prosonic Flow U and C
Over 150 : 1
Prosonic Flow 90/93
Status input (auxiliary input):
U = 3 to 30 V DC, R = 5 kΩ, galvanically isolated.
i
Configurable for: totalizer(s) reset, positive zero return, error message reset.
Prosonic Flow 91
None

Output

Prosonic Flow 90
Current output:
Active/passive selectable, galvanically isolated, time constant selectable (0.05 to 100 s), full scale value
adjustable, temperature coefficient: typ. 0.005% o.r./°C; resolution: 0.5 µA.
< 700 Ω (for HART: R
• Active: 0/4 to 20 mA, R
L
• Passive: 4 to 20 mA, supply voltage 18 to 30 V DC, R
Pulse/frequency output:
Passive, open collector, 30 V DC, 250 mA, galvanically isolated.
• Frequency output: full scale frequency 2 to 1000 Hz (f
pulse width max. 10 s
• Pulse output: pulse value and pulse polarity selectable, max. pulse width adjustable (0.5 to 2000 ms),
max. pulse frequency selectable
Proline Prosonic Flow 90U, 90W, 91W, 93C, 93U, 93W
Possible combinations of transmitters and sensors
Prosonic Flow 90
Transmitter
✔
✔
✔
–
≥ 250 Ω)
L
< 700 Ω
L
max
Prosonic Flow 91 Prosonic Flow 93
Transmitter
✔
–
–
–
= 1250 Hz), on/off ratio 1:1,
Endress + Hauser
Transmitter
✔
✔
✔
✔