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800-876-1172 •

Global Water

FP111-FP211-FP311 Global Water Flow Probe User’s Manual

The Leader in Water Instrumentation
Visit Our Complete Online Catalog Call (800) 876-1172, 7:30 AM to 4 PM Pacific Time International: US (916) 638-3429 • FAX: (916) 638-3270 E-mail: 11390 Amalgam Way, Gold River CA 95670 USA

Level • Flow • Samplers •Water Quality • Weather • Remote Monitoring • Control

01-994 11/30/09


800-876-1172 •

Global Water

Congratulations on your purchase of the Global Water Flow Probe. This instrument has been quality tested and approved for providing accurate and reliable measurements. We are confident that you will find the instrument to be a valuable asset for your application. Should yourequire assistance, our technical staff will be happy to help. Table of Contents
I. II. III. IV. V. VI. VII. Checklist Inspection Description • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Page 3 3 3 4 6 9 14 14 15 17 18 19

General Instructions Average Velocity

Computer Operation Specifications • • • • •

VIII. Maintenance • IX. X. XI. XII.Troubleshooting Warranty •

Appendix A: Calculations for Partially Filled Pipes CE Certification • • • • •

Copyright © Global Water Instrumentation, Inc. 2009

800-876-1172 •

Global Water

I. Flow Probe Checklist
a. Flow Probe: FP111, FP211 or FP311 b. Flow Probe Computer c. Manual d. Carrying Case

II. Inspection
Your Flow Probe was carefully inspected andcertified by our Quality Assurance Team before shipping. If any damage has occurred during shipping, please notify Global Water Instrumentation, Inc. and file a claim with the carrier involved. Use the checklist to ensure that you have received everything needed to operate the Flow Probe.

III. Description
The Global Water Flow Probe is a rugged and highly accurate water velocity instrument formeasuring flows in open channels and partially filled pipes. The water velocity probe consists of a protected propeller and water bearing for measuring water velocity, coupled to a telescoping probe handle ending in with a LCD display flow computer. The Flow Probe is ideal for storm water runoff studies, sewer flow measurements, measuring flows in rivers and streams, and monitoring water velocity inditches and canals.


800-876-1172 •

Global Water

The flow computer incorporates true velocity averaging for the most accurate flow measurements. The computer’s primary display shows the instantaneous velocity and is updated once per second. A secondary display can be toggled between average velocity, minimum or maximum velocity, and a timer than can be used to measure thelength of time in seconds that measurements are being taken. A reset function allows the average, minimum and maximum velocity measurements to be restarted; as well as resetting the timer to zero. Up to 30 separate measurements of average, minimum and maximum velocity can be stored in memory and viewed at any time. Velocities can be displayed in both feet per second or meters per second, a simplemenu function allows you to switch between these units at any time without changing previously stored data. The flow probe computer is self contained and sealed. It has an internal lithium battery that should last approximately 5 years depending on use. The computer floats, and is shock and water resistant for safe use in rugged wet environments.

IV. General Instructions
a. Remove any debris thatmay interfere with the flow probe’s propeller. Make sure that the propeller turns freely by blowing on it. Some chattering of the propeller in air is normal, the bearing is designed to operate best when wet. b. Point the propeller directly into the flow you wish to measure. Face the arrow inside the propeller housing downstream. The FP111 probe handle is a two-piece rod expandable from...
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