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4150 Flow Logger with Low Profile Area Velocity Sensor with 10 foot level measurement range and 25 foot cable

Part Number: 68-4150-003Product Details

Overview

Area Velocity - no weir or flume needed! Handles submerged, surcharged, and reverse flow.
The sensor on the Isco 4150 uses patented Doppler technology to directly measure average velocity in the flow stream. An integral pressure transducer measures liquid depth to determine flow area. The 4150 then calculates flow rate by multiplying the area of the flow stream by its average velocity.

The 4150 gives you greater accuracy in applications where weirs or flumes are not practical, or where submerged, full pipe, surcharged and reverse flow conditions may occur. With area velocity you don’t have to estimate the slope and roughness of the channel. The Doppler system continuously profiles the flow stream, eliminating profiling and calibration required by electromagnetic systems.

Isco mounting rings make it easy to install the probe in round pipes, manhole inverts and other open channels. With the Isco Street Level Installation Tool, you can install your monitoring system from ground level, eliminating the costs and hazards of entering manholes.

You can retrieve stored data on-site with a laptop PC or an Isco 581 Rapid Transfer Device. Isco Flowlink Software produces a variety of informative graphs and reports from stored data.
Features

• Large, versatile memory - stores over 100000 readings of flow, rainfall and sample data.
• Easy setup using Flowlink software (required)
• Easy to upgrade - nonvolatile "flash" memory makes it easy to upgrade firmware without opening the enclosure.
• Rugged, submersible enclosure (NEMA 4X, 6 and IP67)
• Up to one year battery life using standard alkaline lantern batteries.
• Sealed Area-Velocity sensor resists fouling by oil and grease. Streamlined shape sheds debris.
• Choice of standard (10 ft) and extended (30 ft) level measurement range.

Benefits

Maximum Accuracy
The 4150 calculates flow rate by multiplying the area of the flow stream by its average velocity. The Isco Doppler sensor directly measures average velocity throughout the flow stream, while an integral pressure transducer measures liquid depth to determine flow area.This new technology gives you maximum accuracy, and eliminates profiling and calibration required by electromagnetic probes.

Maintenance-Free
The streamlined, low-profile 4150 sensor sheds debris and withstands corrosive flow stream chemicals. And, unlike electromagnetic probes, the sealed Isco sensor does not have exposed electrical contacts. These contacts are easily fouled by oil and grease, and require frequent cleaning. You can count on the Isco 4150 for long-term, dependable operation.

Applications

• Accurate open channel flow measurement without a weir or flume
• Sampler Pacing and Activation - a 4100 Series Flow Logger signals a sampler to collect flow proportioned samples, and can also trigger a sampler based on flow, rainfall, or time.
• Treatment capacity analysis
• Inflow and infiltration studies
• Combined sewer overflow studies
• Long-term river and stream gauging

Specifications

Part Number: 68-4150-003
0.015m to 1.52m (0.05 ft to 5 ft) ±0.003m (±0.01 ft)
0.015m to 2.13m (0.05 ft to 7 ft) ±0.009m (±0.03 ft)
0.015m to 3.05m (0.05 ft to 10 ft) ±0.03m (±0.1 ft)
0.015m to 4.57m (0.05 ft to 15 ft) ±0.009m (±0.03 ft)
0.015m to 6.4m (0.05 to 21 ft) ±0.027m (±0.09 ft)
0.015m to 9.14m (0.05 to 30 ft) ±0.09m (±0.3 ft)
Ambient Operating Temperature Range -18°C to 60°C (0°F to 140°F)

Compensated Temperature Range: 0°C to 60°C (32°F to 140°F)
Baud Rate 300, 1200, 2400, 4800 or 9600
Channel Shapes Round, U-shaped, rectangular, trapezoidal
Data Partitions Maximum of 6
Data Points 50 level-area points
Data Points 50 level-flow rate points
Data Types Level, flow rate, rainfall or sample data
Enclosure NEMA 4X, 6 (IP67)
Equations Two-term polynomial of the form K^1H^N1 ±K^2H^N2
Extended Range Probe Measurement range 0.015m to 9.1m (0.05 ft to 30 ft)
Maximum level 12.2m (40 ft)
Flumes Parshall, Palmer-Bowlus, Leopold-Lagco, trapezoidal, H
Manning Formula Round, U-channel, rectangular, trapezoidal
Material Body and battery end are structural foam molded polystyrene. Connector end is Ryton® (polyphenylene sulfide).
Materials Polybutadiene-based polyurethane, stainless steel
PVC and CPVC cable
Memory Capacity 230000 bytes; equal to over 700 days of level and rainfall readings at 15 minute intervals, plus 5000 sample events
Method Doppler Ultrasonic, 500 kHz
Method Submerged pressure transducer
Operating Temperature -18°C to 60°C (0°F to 140°F)
Power Two 6 volt lantern batteries (alkaline recommended) or one rechargeable 12 volt Isco 947 Lead Acid Battery
Program Memory Non-volatile, programmable flash; can be updated via Interrogator port without opening enclosure
Sampler Activation Conditions Enabled, disabled, level, flow rate, rainfall and time; AND and OR combinations of any two of level, flow rate, rainfall and time; values may be above or below a set-point, inside or outside a range, or a rate of change
Sampler Pacing Output 12 volt pulse
Serial Connection to IBM PC® or compatible computer with Isco Flowlink Software
Size 26.7cm × 22.9cm × 15.2cm (10.5" × 9.0" × 6.0")
Size (L × W × H) 16.8cm × 4.1cm × 3.0cm (6.6" × 1.6" × 1.2")
Standard Range Probe Measurement range 0.015m to 3.05m (0.05 ft to 10 ft)
Maximum level 6.1m (20 ft)
Storage Interval 1, 2, 5, 10, 15, 30, 60 or 120 minutes
Storage Modes Rollover, slate or triggered slate
Storage Temperature -40°C to 60°C (-40°F to 140°F)
Time Base Accuracy ±1 second per day
Typical Battery Life (1 hour data storage interval) With alkaline lantern batteries - 12 months
With Isco 947 Lead Acid Battery - 4 months (between recharges)
Battery life is proportionately less with more frequent data storage, eg, 3 months for 15 minute storage inteval with alkaline batteries.
Velocity Range -1.5 to 6.1 m/s (-5 to +20 ft/s)
Weight (without batteries) 3.6kg (8.0 lbs)
Weight, including cable 0.96kg (2.1 lbs) for standard probe with 25 foot cable
1.8kg (3.9 lbs) for extended range probe with 50 ft cable.
Weirs V-notch, rectangular, Cipolletti

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