Chat to our customer service

Enquire Now

Complete your details below and we will be in touch as soon as possible.

*
*
*
*

Brand Info

View ISCO (Teledyne) website

4120 Flow Logger with submerged probe with 10 foot level measurement range and 25 foot cable

Part Number: 68-4120-001Product Details

Overview

Submerged probe mounts at bottom of stream. Best for sites with wind, steam, foam or turbulence.
The 4120 Flow Logger measures liquid level using a differential pressure transducer, and calculates flow using built-in level-to-flow conversions. The probe's venting system automatically compensates for changes in atmospheric pressure to maintain accuracy. This technology provides accurate measurement at sites where wind, steam, foam, turbulence or air temperature fluctuations exist. The probe accurately senses pressure even when covered with silt and sand.

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. In addition, most flumes are available with an integral recess for mounting an Isco Submerged Probe.

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.
• Choice of standard (10 ft) and extended (30 ft) level measurement range.
• Venting system automatically compensates for atmospheric pressure changes

Benefits

Accurate Under Tough Conditions
The Isco 4120 probe uses an integral differential pressure transducer to measure the depth of the liquid. The probe features a streamlined, low-profile design to minimise flow stream obstruction. Its venting system automatically compensates for changes in atmospheric pressure to maintain measurement accuracy. The probe accurately senses pressure even when covered with silt and sand.

Safe for Hazardous Locations
Isco Submerged Probes are UL Classified for use in Class I, Division 1, Groups A, B, C, & D hazardous locations when installed using the new Intrinsically Safe Barrier and Quick Disconnect Box. This makes the 4120 safe to use in locations where flammable gases or vapors may be present.

Fast and Easy Installation
Isco mounting rings and straps make it easy to install the probe in round pipes, manhole inverts, and other open channels. In addition, most flumes are available with an integral recess for mounting an Isco Submerged Probe.

Applications

• Flow measurement where wind, steam, foam, or turbulence exist.
• 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: 68-4120-001
0.03m to 1.22m (0.1 ft to 4.0 ft) ±0.005ft/°F (±0.0027m/°C)
0.03m to 1.52m (0.1 ft to 5.0 ft) ±0.003m (±0.01 ft)
0.03m to 2.13m (0.1 ft to 7.0 ft) ±0.009m (±0.03 ft)
0.03m to 3.05m (0.1 ft to 10 ft) ±0.03m (±0.10 ft)
1.22m to 3.05m (4.0 ft to 10 ft) ±0.007ft/°F (±0.0038m/°C)
Baud Rate 300, 1200, 2400, 4800 or 9600
Cable Standard range probe - 7.6m × 0.8cm (25 ft × 0.3")
Extended range probe - 15.2m × 0.8cm (50 ft × 0.3")
Compensated Temperature 0° to 38°C (32° to 100°F)
Data Partitions Maximum of 6
Data Points 50 level-flow rate points.
Data Types Level, flow rate, rainfall or sample data
Dimensions 24.1cm × 2.2cm (9.5" × 0.875")
Enclosure NEMA 4X, 6 (IP67)
Equations Two-term polynomial of the form K^1H^N1 ±K^2H^N2
Flumes Parshall, Palmer-Bowlus, Leopold-Lagco, trapezoidal, H
Hazardous location rating UL Classified for Class I, Division 1, Groups A, B, C, & D locations, when installed with Isco Intrinsically Safe Barrier and Quick Disconnect Box per control drawing 60-3403-131
Level Measurement Method Submerged pressure transducer mounted in the flow stream
Level Measurement Range 0.03 to 3.05m (0.1 to 10 ft)
Manning Formula Round, U-channel, rectangular, trapezoidal
Material Body and battery end are structural foam molded polystyrene. Connector end is Ryton® (polyphenylene sulfide).
Materials Probe is Type 316 stainless steel and chlorinated polyvinyl chloride (CPVC); cable is Polyvinyl chloride (PVC)
Maximum Allowable Level 6.1m (20 ft)
Memory Capacity 230000 bytes; equal to over 700 days of level and rainfall readings at 15 minute intervals, plus 5000 sample events.
Operating Temperature -18°C to 60°C (0°F to 140°F)
Operating Temperature 0°C to 71°C (32°F to 160°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")
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
Transducer Type Differential linear integrated circuit pressure transducer
Typical Battery Life (1 hour data storage interval) With alkaline lantern batteries - 2 years
With Isco 947 Lead Acid Battery - 8 months (between recharges)
Battery life is proportionately less with more frequent data storage, eg, 6 months for 15 minute storage inteval with alkaline batteries.
Weight (without batteries) 3.6kg (8.0 lbs)
Weirs V-notch, rectangular, Cipolletti

Related Items

  • 2110 Ultrasonic Flow Module, with 1.5 meter level sensor, 2191 battery module and in-pipe mount
  • 2110 Ultrasonic Flow Module, with 1.5 meter level sensor
  • 4250 Area Velocity Flow Meter, with Standard Area Velocity Sensor with 10 foot level measurement range and 25 foot cable
  • 3010 Ultrasonic Flow Transmitter
  • 4210 Ultrasonic Level Measurement Flow Meter
  • 2110 Ultrasonic Flow Module, with 1.5 meter level sensor and 2191 battery module
  • 4250 Area Velocity Flow Meter, with Low Profile Area Velocity Sensor with 10 foot level measurement range and 25 foot cable
  • 4220 Submerged Probe Flow Meter, with submerged probe with 10 foot cable
  • 2110 Ultrasonic Flow Module, with 1.5 meter sensor and in-pipe mount
  • 4230 Bubbler Level Sensing Flow Meter with 1/16" × 25 foot Teflon bubble line
  • 4230 Bubbler Level Sensing Flow Meter with 1/8" × 50 foot vinyl bubble line
  • 10 inch Metering Insert with Pump and Poles
  • 12 inch Metering Insert with Pump and Poles
  • 2150 Area Velocity Flow Module, includes Area Velocity Sensor with 3m (10 ft) level measurement range and 10m (33 ft) cable
  • 2150 Area Velocity Flow Module, with 2191 Battery Module
  • 2150 Area Velocity Flow Module, with 2191 Battery Module, includes 2 battery holders, and carrying handle with suspension strap
  • 2151 Intrinsically Safe Area Velocity Flow Meter, with two 6V alkaline batteries
  • 2151 Intrinsically Safe Area Velocity Flow Meter, with two 6V alkaline batteries and RS232 Barrier Communication Cable
  • 2151P Intrinsically Safe, Permanent Flow System, includes 2100 Series Connect Cable and Area Velocity Sensor with 3m (10 ft) level measurement range and 7.6m (25 ft) cable
  • 2150EX Flow Meter for Zone 0 locations, module only, ATEX approved
  • 2150EX Flow Meter for Zone 0 locations, with 2191EX Battery Module and AV probe, ATEX approved
  • 2150EX Flow Meter for Zone 0 locations, with 2196EX Battery Module and carrying handle, includes AV2150EX sensor with 3m (10 ft) level measurement range and 7.6m (25 ft) cable, ATEX approved
  • 2150EX Flow Meter for Zone 0 locations, with AV probe, ATEX approved