Global Flow Probe (FP101/FP201)
Digital Water Velocity Meter
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Probe Handle: True Velocity Averaging: Flow Measurement:
FP101/201 Manual
FP101/201 Quick Reference
FP101 Brochure
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Product Description
Specifications
Photo Gallery
Calibration Numbers
Prices
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 velocity in ditches and
canals.
Turbo-Prop
Sensor:
The Flow Probe incorporates the
unique Turbo-Prop propeller sensor that 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 streambeds 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 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 is
maximum velocity, time-of-day and stopwatch functions.
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 low bridges. A 3 ft. 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.
The Flow Probe uses true velocity averaging. A running average is started
once both buttons are simultaneously pressed, this zeroes the display, and when
the water flow rate sensor is placed into flowing water. As long as the
water velocity sensor remains in the flow, the averaging continues. Once
the average reading becomes steady, the true average velocity has been obtained.
When you pull one of Global Water's environmental flow meters from the water,
the average value is frozen on the display until reset.
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 monitor offers two unique
methods for determining the Average Velocity: 1) For small streams and pipes,
the flow velocity 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 water flow
meters 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'
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.
Calibration
Numbers STANDARD: FEET/SECOND METRIC: METERS/SECOND METRIC - 2538 DOUBLE
MAGNET CONVERSION FACTORS:
See the product
manual for futher instructions.
ENGLISH - 33.31 SINGLE MAGNET
METRIC - 1603 SINGLE
MAGNET
Move the decimal point one place to the left
Move the decimal point one place to the left
1 Mile = 1.609 km
1 Meter = 3.281 Feet
1 Inch = 25.4 mm
Options and
Price List Flow Probe Replacement Parts:
BA0400 Digital Flow
Computer..................................$200
FP101
Flow Probe (3' to 6' handle)..............$695
FP201 Flow Probe (5' to 15'
handle)............$745
BA0300 Computer
Holder..........................................$85
BA0501 3' to 6' Gold 2-
Section Rod..........................$325
BB0501 5' to 15' Blue 3-
Section Rod........................$365
BG0000 Prop/Bushing/Screw
Kit.................................$30
00-155 FP101
Case..................................................$60
00-082 FP201
Case..................................................$80
