Proline Prosonic Flow 90U, 90W, 91W, 93C, 93U, 93W
12
E Hauser
System overview
Ranges of application:
Warm and cold water and similar liquids
Input
Measured variable
Flow velocity (transit time difference proportional to flow velocity)
Measuring range
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
Operable flow range
Over 150 : 1
Input signal
Prosonic Flow 90/93
Status input (auxiliary input):
U = 3 to 30 V DC, R
i
= 5 k
Ω
, galvanically isolated.
Configurable for: totalizer(s) reset, positive zero return, error message reset.
Prosonic Flow 91
None
Output
Output signal
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
µ
A.
• Active: 0/4 to 20 mA, R
L
<
700
Ω
(for HART: R
L
≥
250
Ω
)
• Passive: 4 to 20 mA, supply voltage 18 to 30 V DC, R
L
< 700
Ω
Pulse/frequency output:
Passive, open collector, 30 V DC, 250 mA, galvanically isolated.
•
Frequency output:
full scale frequency 2 to 1000 Hz (f
max
= 1250 Hz), on/off ratio 1:1,
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
Possible combinations of transmitters and sensors
Prosonic Flow 90
Transmitter
Prosonic Flow 91
Transmitter
Prosonic Flow 93
Transmitter
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
–
–
✔
