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Catalog:Environmental Flow Monitoring 
Global Water Flow Probe (FP101 & FP201) AccessoriesGlobal Water Flow Probe (FP101 & FP201) Digital Water Velocity Meter For measuring flow in: Stormwater Channels, Rivers, Ditches, Flumes, Sewers, Effluents, Canals, Creeks, Pipes, Process Controls Accurate Low-Cost Reliable Easy to use Flow Calibrated Description The Global Flow Probe is a highly accurate water velocity instrument for measuring flows in open channels and partially filled pipes. The Flow Probe consists of the protected Turbo-Prop positive displacement sensor coupled by the expandable probe handle to the digital readout display. The Flow Probe incorporates true velocity averaging for the most accurate flow measurements. The Flow Probe is ideal for storm water runoff studies, measuring flows in rivers and streams, and monitoring velocity in ditches and sewers. Turbo-Prop Sensor: The Flow Probe incorporates the unique Turbo-Prop propeller sensor which uses the most accurate positive displacement technique 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 pipes or stream beds for measuring low flows down to 2" in depth. The Turbo-Prop rotates freely on its bearing shaft with no mechanical interconnections for minimal friction. Magnetic material in the propeller tip passes the pickup coil in the housing producing electrical impulses which are carried to the readout display by an internal cable. The Turbo-Prop, is easily removed for cleaning or replacement. Digital Readout Display: The Digital Readout Display receives an electrical signal from the propeller, amplifies the signal, and converts the reading to feet per second (or meters per second). The Readout displays instantaneous velocity and true average velocity. The Readout unit is water resistant and incorporates a unique two button operation for changing functions and zeroing the display. An internal watch type battery powers the unit continuously for one year and it is easily replaced. Also available on the Readout are maximun velocity, time-of-day and stop watch functions. Probe Handle: The Flow Probe handle is telescoping and is expandable from 3 feet to 6 feet in length (FP101) or 5 feet to 15 feet (FP201). It is constructed of anodized aluminum for light weight and long life. The Flow Probe may be easily extended up to 25 feet in length using standard PVC pipe and an electrical extension cable. This allows for sewer flow measurements from street level and measuring of stream flows from a bridge. A 3 ft. mylar coated staff gauge (graduated in hundredths of a foot and centimeters) is attached to the lower section of the probe for instant water depth measurements and accurate probe positioning. True Velocity Averaging: The Flow Probe uses true velocity averaging. When the Readout is zeroed by pushing both buttons or when the probe is inserted into flowing water, a running average is started. As long as the probe remains in the flow, the averaging continues. Once the average reading becomes steady, the true average velocity has been obtained. When you pull the probe from the water, this average value is frozen on the display until reset. Flow Measurement: Flow is determined by V (average velocity) x A (cross-sectional area)=Q (flow). The Area of a channel is known for pipes, or is determined for streams by measuring the distance from shore and depth at various points across the flow stream to construct the flow profile. The Flow Probe offers two unique methods for determining the Average Velocity: 1) For small streams and pipes, the probe is moved smoothly and uniformly throughout the flow profile. When you see a steady average reading, the true average velocity for the flow stream is obtained. 2) For larger streams, the probe may be used to take a vertical profile of velocity at several points across the stream which then become the average velocities for each of these subsections of the flow stream. Specifications Range: 0.3-25 FPS (0.1-8 MPS) Accuracy: 0.1 FPS Averaging: True digital running average. Readings taken once per second. Display: LCD Sensor Type: Protected Turbo-Prop propeller with electro-magnetic pickup. Weight: 2 pounds (10 lbs. U.S., 14 lbs. international shipping weight) Size: Length: FP101 3' to 6'; FP201 5' to 15' Sensor Housing: 2" diameter x 3" long Materials: PVC, anodized aluminum, stainless steel bearing Power: Internal watch type batteries/1 year life Operating Temperature: 0° to 120° F Carrying Case: The Flow Probe is shipped in a padded carrying case. Top of Page Photo Gallery Calibration Numbers See the product manual for futher instructions. STANDARD: FEET/SECOND ENGLISH - 33.30 SINGLE MAGNET METRIC: METERS/SECOND METRIC - 1603 SINGLE MAGNET MOVE DECIMAL POINT ONE PLACE TO THE LEFT METRIC - 2538 DOUBLE MAGNET MOVE DECIMAL POINT ONE PLACE TO THE LEFT CONVERSION FACTORS: 1 MILE = 1.609 KM 1 METER = 3.281 FEET 1 INCH = 25.4 MM Prices and Replacement Parts FP101 Flow Probe (3' to 6' handle).............$695 FP201 Flow Probe (5' to 15' handle)............$745 Please select from the menu below
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