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Global Water
800-876-1172 • globalw.com
FP111-FP211-FP311 Global Water Flow Probe
User's Manual
The Leader in Water Instrumentation
Visit Our Complete Online Catalog www.globalw.com
Call (800) 876-1172, 7:30 AM to 4 PM Pacific Time
International: US (916) 638-3429 • FAX: (916) 638-3270
E-mail: globalw@globalw.com
11390 Amalgam Way, Gold River CA 95670 USA
Level • Flow • Samplers • Water Quality • Weather • Remote Monitoring • Control
01-994
11/30/09
1
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Table of Contents
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Summarization of Contents
General Instructions
Propeller Preparation and Orientation
Ensure propeller is free of debris and turns freely. Orient probe correctly in flow.
Measurement Activation and Reset
Activate display, press RESET to start measurements. Reset zeroes avg/min/max.
Flow Calculation and Fouled Propeller
Calculate cross-sectional area, use Q=VxA formula for flow. Clean fouled propeller.
Average Velocity
Reasons for Velocity Variation
Explains variations due to friction, surges, turbulence, and obstructions.
Measuring Average Velocity in Streams
Methods for small streams (moving probe) and large streams (subsections).
USGS '6 Tens Method'
Measures velocity at 0.6 depth for 40 seconds, assumes average for profile.
Computer Operation
Main Display and Buttons
Overview of the main display and functions of MODE, MENU, SAVE, RESET buttons.
Save to Memory
Procedure for saving data, memory locations, overwriting data, and navigating.
Setup Menu Functions
View Recorded Data
Review recorded data, select memory location and data value (avg, min, max).
Delete All Stored Data
Delete all stored data from memory. Warning: data cannot be recovered.
Set Flow Units
Change flow units between FT/S and M/S. Save or discard changes.
Set Calibration Factor
Adjust the calibration factor for propeller rotation speed to water velocity conversion.
Maintenance
Probe Handle Maintenance
Instructions for drying, cleaning and reassembling the probe handle after use.
Battery and Cleaning Procedures
Info on non-replaceable battery, recycling, and propeller cleaning.
Troubleshooting
Propeller and Magnet Issues
Troubleshooting propeller spin, loose shaft, magnet presence.
Computer, Display, and Support
Troubleshoot computer holder, calibration, display issues, and contact support.
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