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