CiDRA SONARtrac HD GVF-100 - Manual (Page 118)

Copyright © 2006 CiDRA Corporation Page A-6
20675-02 Rev 01
A2 VF & GVF-100 PERFORMANCE SPECIFICATIONS
A2.1 Turn-on Time
30 minutes to rated accuracy from power up
25 seconds from power interruption
A2.2 Start-up Time
25 seconds from zero flow
A2.3 Low / High Flow Cutoff
Adjustable between 3 and 30 ft/sec. At process flow rates below and
above these values, the output will register a ‘<min flow’ or’>max flow’
indication.
A2.4 Flow Rate Range
SONARtrac
TM
is capable of measuring signals from process fluids
traveling at velocities between 3 ft/s and 30 ft/s (1.0 m/s to 10 m/s).
This capability is for both forward or reverse flow directions.
A2.5 Flow Rate Accuracy
Flow rate accuracy is +/-1.0% of flow rate from 3 to 30 ft/sec (1 to
10m/s).
A2.6 Gas Volume Fraction Range
SONARtrac
TM
is capable of determining the Gas Volume Fraction in
fluids between 0% and 20% entrained air.
A2.7 Gas Volume Fraction Accuracy
Accuracy of +/- 5% of reading within the 0.01% to 20% entrained
gas/air range when used with an in-line process pressure reading.
A2.8 Repeatability
+/- 1% of reading
A2.9 Update Rate
2 seconds