IISCO 2110 ultrasonic non contact level sensor for weirs and flumes

Isco 2110 Ultrasonic Level Module

  • Accurate Non-Contact Measurement Non-contact flow and level measurement in weirs, flumes and streams
  • Applications Flow measurement in streams containing suspended solids, grease or harsh chemicals
  • PVDF Packaging Condensation resistant sensor package
Product Options


The 2110 Ultrasonic Module utilises an ultrasonic sensor mounted above the flow stream and built in software, to provide accurate non-contact flow and level measurement in weirs, flumes and streams. The elapsed time between transmission of sound waves from the sensor and receiving the reflected signal determines the level of the liquid. Built in conversions for the specified primary device or natural stream boundaries are then used to calculate flow rate.

The 2110 can be used in conjunction with Isco's Flowlink software to produce advanced graphing and reports from the data, and it can also be used for redundant level measurement to complement Isco's 2150 Area Velocity Flow Module

Standard Features

  • Zero deadband in level measurement
  • Chemically resistant sensor package(PVDF)
  • Condensation resistant sensor deflector plate
  • Digital comms. between sensor and module make 2110 immune to RF interference.
  • Stacks with other 2110 modules to create applications specific solutions.
  • Software Features:
    - 38.4k baud communications for speedy setup and data retrieval.
    - Variable data storage rates can be set to change automatically when conditions change.
    - Easy downloadable upgrades that don't affect stored data.
    - Records input voltage information to let operator know when to change batteries.
    - Secure data storage with flash memory. Data will not be lost during power outages.

Manufactured by: Teledyne ISCO
Model: Isco 2110 Ultrasonic Level Module

Services offered for this product

  • Sales
  • Rental
  • Installation
  • Calibration
  • Maintenance


Open-channel flow measurement
CSO, SSO, l&l, cMOM, SSEs, sewer flow monitoring
Redundant level measurement in combination with ISCO 2150 (or other devices)
Flow measurement in streams containing suspended solids, grease or harsh chemicals


2110 Ultrasonic Module
Size (H x W x D) 2.9 x 11.3 x 7.5 in. (7.4 x 28.7 x 19.1 cm)
Weight 2.4 lbs. (1.08 kg)
Material High-impact molded polystyrene, stainless steel
Enclosure (self-certified) NEMA 4X, 6P (IP68)
Power Required 7 to 15V DC, typical operating current 60 mA at 12V DC, 0.3 mA standby
Typical Battery Life *15 months (Level, temperature, and flow rate at 15-minute intervals; input voltage and total flow at 24 hour storage interval.) *Note: Using Energizer 529 alkaline batteries, discharged to a no load voltage of 4.2V DC per battery or 8.4V DC combined from the 2191 Battery Module.
Program Memory Non-volatile, programmable flash; can be updated using PC without opening enclosure;retains user program after updating
Number of Modules Connected Together Up to 4, field interchangeable
Maximum Distance Between Modules 3300 ft. (1000 m)
Wiring Between Remote Modules Twisted pair for communication, pair for power, gauge dependent on distance
Level-to-Flow Rate Conversions
Weirs V-notch, rectangular, Cipolletti, Isco Flow Metering Inserts, Thel-Mar
Flumes Parshall, Palmer-Bowlus, Leopold-Lagco, trapezoidal, H, HS, HL
Manning Formula Round, U-shaped, rectangular, trapezoidal
Data Points Up to 50 level-flow rate points
Equation 2-term polynomial
Total Flow Calculations 1 independent, net positive or net negative, based on flow rate conversion
Data Storage Memory Non-volatile flash; retains stored data during program updates
Capacity 395,000 bytes (up to 79,000 readings, equal to over 270 days of level readings at 15 minute intervals, plus total flow and input voltage readings at 24 hour intervals)
Data Types Level, flow rate, total flow, temperature, input voltage
Storage Mode Rollover with variable rate data storage based on level, flow rate, total flow, or input voltage
Storage Interval 15 or 30 seconds; 1, 2, 5, 15, or 30 minutes; or 1, 2, 4, 12, or 24 hours
Level-to-Flow Rate Conversions (continued)
Bytes Per Reading 5
Setup and Data Retrieval Serial connection to IBM PC or compatible computer with Isco Flowlink Software (Version 5.1 or newer recommended)
Baud Rate 38,400
Operating Temperature 0° to 140°F (-18° to 60°C)
Storage Temperature -40° to 140°F (-40° to 60°C)
Ultrasonic Sensor
Enclosure NEMA 4X 6P (IP68)
Length x Diameter 3.08 x 1.9 in (7.8 x 4.8 cm)
Cable 32.8 ft x 0.3 in (10 m x 0.8 cm)
Weight (incl cable) 2.0 lbs (0.9 kg)
Level Measurement (@ 20-25°C, 30-70% RH, stable, non-stratified air)
Frequency 150 KHz, 95KHz
Cone Angle ±8°
Range *150 kHz - 4 to 72 in (0.1 to 1.8 m), 95 kHz - 12 to 144 in (0.3 to 3.6 m). *Note: Zero deadband possible for 150 kHz sensor only, when installed with horizontal mounting bracket. Minimum range specifications not guaranteed at maximum operating temperature.
Accuracy The greater of ±0.013 ft. (3.96 mm) or ±0.0084 ft. (2.56 mm) per foot (0.305 m) from calibration point
Typical Temperature Error ± the sum of 0.0042 ft. + 0.00012 ft. per degree from 68°F
2191 Battery Module
Size (H x W x D) 6.0 x 9.6 x 7.6 in. (15.2 x 24.4 x 19.3 cm)
Weight (without batteries) 3.2 lbs. (1.4 kg)
Material High-impact molded polystyrene
Enclosure (self-certified) NEMA 4X, 6P (IP68)
Batteries 6V alkaline lantern or lead-acid lantern, quantity 2
Capacity 25 Ahrs



No, all of our flowmeters are competitively priced and rental is an ideal option for cutting costs to a fraction of a full priced new flowmeter.
No problem. The quick start guide is designed to make installing the flow meters a simple task. Everything you require for set up will be found in the peli-box supplied with the flowmeter.
Every flow meter is tested upon shipping and return as part of our ISO9001 procedure. Also, as part of this procedure, the flow meter is calibrated once a year. If a copy of the calibration certificate is needed let us know.
The flow meters typically provide an accuracy of ±1 to 2% of rate, so if you are measuring 100l/sec then the accuracy is between 98-102l/sec.
We are here to help. If the self-help and quick start guides do not help, then call one of our technical support engineers on +44 (0) 1527 882060. We have supplied and supported many clamp on rental installations throughout Europe.
First, contact us for a quote. If you are happy with the quote then send us a purchase order. Or alternatively call us with credit card details and fill out and send us a rental agreement form.
If the stock is permitting, and all paperwork is received by 12pm then flow meters can usually be available the next day.
The minimum hire period for flow meters is one week.
Once you have the meter you can rent it for as long as you need it. However, it would help if you can let us know that you wish to extend the rental period. Upon return the meter is off-hired and once checked and tested, an invoice will be issued to you. Also, if you extend your rental past a 4, 8 or 12 week rental threshold, then you are entitled to a discount.
You are only charged for the period of time for which you have the flowmeter. So, if a flowmeter is returned 3 days late you are only charged for 3 extra days, and each of these days is charged at one fifth of the weeks hire cost.
Normally, you will use your own courier but if you have any problems let us know and we can arrange a pick up the day after you notify us, but you will be charged for the carriage and this cost will be added to the invoice.
Without exception, all our flow meters are tested. If you need a 110v plug instead of the standard 230v plug let us know.
All of our standard transducers will do -40degC to +150degC, but this will depend on your application.
  • Liquid: below 50mm CFLP transducers are required, 50-1000mm CRS-402 transducers and 150-8000mm CRS-401 transducers. All the bits you need can be supplied, and delivered with the meter.
  • Gas: below 80mm CRS-402 is required, for 80-300mm the CRS-401/CRV-310 and for above 300mm the CRW-312 transducers are required.
  • High temperatures: For liquid we can measure +450degC for liquid and for gas/steam +250degC. But please consult RS Hydro.
Of course, we make a small surcharge for each set of transducers. Most applications only require one set, but on occasion some people may require two, for more diverse pipe sizes and applications.
An ultrasonic wall thickness gauge, that measures to within 0.05mm, is provided as standard with all flow meter rental packages.
The screendump facility on the integrated dataloggers on all our flow meters, allows you to photograph any screen and download it to your pc.
After the equipment has been shipped, it is the responsibility of the hirer. However, in our experience it is rare that any of our flow meters are damaged. Our flow meters are tough, as well as accurate, and reliable.
We have hired more ultrasonic clamp on flow meters than any other company in Europe. We are now one of the world's largest distributors of GE Panametrics flow meters. We always review your application before hire so no unwanted surprises are encountered. Every effort has been made to make your flow meter hire and enjoyable experience: quick start guides to help you set up with ease, online videos for further help, rugged packaging for extra durability anywhere, and real flow engineers available for online/telephone support.