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FP111, FP211, & FP311 GLOBAL WATER FLOW PROBE
Digital Water Velocity Meter
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FEATURES:
- Digital display in ft/sec or m/sec
- Records 30 data sets for later analysis
- Rain-proof digital computer
- Highly accurate easy flow monitoring
- Debris shedding turbo-prop
- Lightweight, rugged, and reliable
- Telescoping handle with staff gauge
- Padded carrying case for easy storage
- CE Certified
- Used by water professionals worldwide since 1990
- Ideal for measuring flows in streams, rivers, canals, stormwater, wastewater,
inflow and infiltration studies, and industrial process waters
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To Order Call 1-800-876-1172
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Flow Probe Product Description
The Flow Probe's Turbo-Prop
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The Flow Probe's Digital Readout Display
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The Global Water Flow Probe is a highly accurate water velocity instrument for measuring
flows in open channels and partially filled pipes. The water velocity probe consists of a protected water turbo prop positive
displacement sensor coupled with an expandable probe handle ending in a digital readout display. The water flow meter
incorporates true velocity averaging for the most accurate flow measurements. The Flow Probe is ideal for storm water
runoff studies, sewer flow measurements, measuring flows in rivers and streams, and monitoring water velocity in ditches and canals.
Turbo-Prop Sensor
The Flow Probe incorporates the unique Turbo-Prop propeller sensor, which uses the most accurate positive displacement
technique available for velocity sensing. The Turbo-Prop is designed to shed debris and is protected inside a 2"
diameter housing. The probe housing may be placed directly on the bottom of a pipe or streambed for measuring low
flows down to 2" in depth. The flow meter propeller rotates freely on its bearing shaft with no mechanical
interconnections for minimal friction. Magnetic material in the propeller tip passes a pickup point in the water velocity
meter handle producing electrical impulses that are carried to the readout display by an internal cable. The Turbo-Prop
is easily removed for cleaning or replacement. NOTE: Global Water recommends recalibrating the water velocity computer
every time the Turbo-Prob sensor is replaced. Contact our Technical Support department for
more details.
Water Velocity Computer
The water velocity computer receives an electrical signal from the propeller, amplifies the signal, and converts the reading
to feet per second (or meters per second, depending on programming). The large LCD screen displays average, minimum, and
maximum water velocity readings. Up to 30 sets of minimum, maximum, and average data readings can be stored in the water
velocity computer. These data points can be reviewed on the computer screen for later analysis. The water velocity
computer has a water-resistant housing and incorporates a unique four-button operation for changing functions and resetting the
display. The water velocity computer is powered by a non-replaceable battery that will last approximately five years with
normal use. Low battery warnings will also display as appropriate.
Flow Probe Handle
The Flow Probe handle can telescope from 3.7 feet to 6 feet in length (FP111), 5.5 feet to 15 feet (FP211), or 2.5 feet to 5.5
feet (FP311). The handle is constructed of anodized aluminum for light weight and long life. The 15 foot length of
the FP211, Flow Probe, allows for measuring sewer flows from street level and measuring stream flows from low bridges. While
the 2.5 foot collapsed length of the FP311, Flow Probe is ideal for carrying into remote flow monitoring areas. A 3-foot (1.7-feet
for the FP311) mylar coated staff gauge (graduated in hundredths of a foot and centimeters) is attached to the lower section of the
water velocity probe for instant water depth measurements and accurate propeller positioning.
True Velocity Averaging
The Flow Probe can be used to measure the true average water velocity of a channel’s flow. As long as the turbo-prop sensor
is in the water flow, the computer will average the water velocity. One reading is taken per second, and a continuous average
water velocity is displayed. To obtain the true average velocity the flow probe should be slowly moved throughout the cross
sectional area being measured. Once the reading becomes steady, the true average water velocity of the cross sectional area
is obtained. This allows for highly accurate flow measurements, which average the differences in velocities that occur
throughout a flow’s cross-section and with water surges over time. The average water velocity can be saved by pressing the
SAVE button and reviewed later.
Optional Swivel Head
The Flow Probe Swivel Head option allows you to rotate the flow probe's turbo prop to + 90 degrees from it's standard position. This
option lets the flow probe take water velocity measurements in hard to measure areas such as vertical pipes on water tanks or swimming pool
drainage systems.
Optional Alignment Fin
Significant errors can occur when measuring water flow other than directly parallel to the direction of flow. The Global Water Flow
Probe Alignment Fin is designed to help orient the flow probe parallel to flow when the end of the probe can’t be seen well due to the
depth or cloudiness of the water. To use this accessory, immerse the flow probe and rotate it back and forth until the least amount
of resistance is felt due to the water flowing past the alignment fin.
Flow Probe Specifications
Range: 0.3-19.9 FPS (0.1-6.1 MPS)
Accuracy: 0.1 FPS
Averaging: True digital running average. Updated once per second.
Display: LCD, Glare and UV Protected
Control: 4 button
Datalogger: 30 sets, MIN, MAX, and AVG
Features: Timer, Low battery warning
Sensor Type: Protected Turbo-Prop propeller with magnetic pickup.
Weight:
Instrument: 2 lbs. (0.9 kg) (FP111), 3 lbs. (1.4 kg) (FP211), 2.8 lbs. (1.3 kg) (FP311)
Shipping: 13 lbs. (5.9 kg) (FP111), 23 lbs. (10.4 kg) ((FP211), 19 lbs. (8.6 kg) ((FP311)
Expandable Length: 3.7 to 6 ft (1.1 to 1.8 m) (FP111); 5.5 to 15 ft (1.7 to 4.6 m) (FP211); 2.5 to 5.5 ft (0.76 to 1.7 m) (FP311)
Materials:
Probe: PVC and anodized aluminum with stainless steel water bearing
Computer: ABS/Polycarbonate housing with polyester overlay
Power: Internal Lithium Battery, Approx 5 year life with typical use, Non-Replaceable
Operating Temperature: -4° to 158° F (-20° to 70° C)
Storage Temperature: -22° to 176° F (-30° to 80° C)
Carrying Case: The Flow Probe is shipped in a padded carrying case.
Approvals: CE
Flow Probe Options & Prices
Prices listed are for United States and Canada only. Call or e-mail us for pricing in other countries.
Terms and Conditions
ORDER NOW
FP111 Flow Probe (PN# BA1100)
(3.7' to 6' handle) including carrying case. Note pole color of shipped instrument may be different than shown.
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$815 |
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FP211 Flow Probe (PN# BB1100)
(5.5' to 15' handle) including carrying case. Note pole color of shipped instrument may be different than shown.
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$875
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FP311 Flow Probe (PN# BC1100)
(2.5' to 5.5' handle) including carrying case. Note pole color of shipped instrument may be different than shown.
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$875
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FP111-S Flow Probe (PN# BA1110)
(3.7' to 6' handle w/swivel) including carrying case. Note pole color of shipped instrument may be different than shown.
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$1,080 |
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FP211-S Flow Probe (PN# BB1110)
(5.5' to 15' handle w/swivel) including carrying case. Note pole color of shipped instrument may be different than shown.
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$1,135
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REPLACEMENT FLOW PROBE PARTS
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Digital Flow Computer (PN# BA2000)
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$250
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Turbo-Prop Replacement Kit (PN# BG0000)
Includes propeller, mounting shaft, and instructions. NOTE: Global Water recommends recalibrating the Digital Flow Computer
after replacing the Turbo-Prop.
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$35
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FP 111 Case (PN# 00-155)
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$65
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FP 211 Case (PN# 00-082)
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$87
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FP 311 Case (PN# BC1150)
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$79
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FLOW PROBE ACCESSORIES
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FP-FIN Flow Probe Alignment Fin Kit (PN# BA2010)
Includes alignment fin and mounting hardware.
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$55
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