Products for Open Channel Flow Measurement: Teledyne ISCO 2100 Series Modular Flow Systems

Teledyne ISCO is a leading manufacturer and supplier of rugged, reliable instruments for water and wastewater sampling and monitoring. Teledyne ISCO's flowmeter and level measuring instruments are the first choice for use in demanding applications.

LaserFlow® and LaserFlow® EX Non-Contact, Sub-Surface Sensors


  • Remotely measure flow in open channels with non-contact Laser Doppler Velocity technology and non-contact Ultrasonic Level technology.
  • Non-contact velocity and level measurement
  • Single or multipoint velocity measurement below the liquid’s surface
  • No dead band from measurement point
  • The non-contact sensor avoids the need of unsafe and time consuming confined space entry for preventive maintenance
  • LaserFlow EX for intrinsically safe applications in Class 1, Division 1, ATEX Zone 0 areas

2160 LaserFlow Module

    2160 LaserFlow Module
  • 2100 Series modularity with advanced non-contacting laser
  • Doppler technology
  • Rugged, submersible enclosure fulfills IP68 enclosure requirements
  • The quick-connect sensor can be easily removed and interchanged in the field without requiring recalibration
  • Up to four 2100 Series flow modules can be networked by stacking and/or extension cables
  • Modbus output interface

2110 Ultrasonic Flow Module Accurate, non-contact liquid level measurement with built-in flow conversion software.

    2110 Ultrasonic Flow Module
  • Measurement technology: Ultrasonic
  • Microprocessor-based digital sensor
  • Self-tuned power control
  • Unique sensor design minimizes “deadband”
  • Vertical sensor face avoids condensation problems 
  • Variable rate data storage

2150 Area Velocity Flow Module Advanced area velocity technology in modular form.

    2150 Area Velocity Flow Module
  • Measurement technology: Continuous Wave Doppler 
  • Microprocessor-based low profile sensor
  • Span calibration not required
  • No temperature drift
  • Automatic gain control
  • No “draw down” effect
  • Variable rate data storage

2150 EX Area Velocity Flow Module BASEEFA and CSA approved for use in potentially explosive atmospheres.

    2150 EX Area Velocity Flow Module
  • Measurement technology: Continuous Wave Doppler

Contact Instrument Specialties for all your Teledyne ISCO needs. They can be reached by calling 407-324-7800 or visit their web site at

Remote Actuator Controls Provide Safer, More Efficient Wastewater Treatment Application

Above ground wastewater valve controls
Above ground wastewater actuator controls.
A wastewater treatment plant installed six new AUMA SAR electric actuators for modulating duty to control the dosing of chemical additives. These actuators are used for modulating duty to handle the high-precision dosing of short-chain fatty acids, used to support the growth of microorganisms and help to remove phosphorus from the wastewater. 

The actuators are situated below ground, with their AC actuator control systems mounted above the ground. This is done for both for both safety and convenience. This arrangement is made easy thanks to the modular design of AUMA actuators. AUMA actuator controls can be mounted up to 325 feet from the actual actuator (motor and gearbox).

When workers have to access equipment underground, it requires special safety needs and procedures. These include the use of qualified personnel and gas detection tests to ensure sufficient oxygen as well as to rule out flammable of explosive potentials. Locating the actuator controls above ground level, in combination with non-intrusive actuator versions, reduces underground work to a minimum, thus helping to save time and cost.

Below ground wastewater valve controls
Below ground motors and gearboxes.
The split-level installation also provides diagnostic and local control from a more comfortable position. The graphical interface and all operational, data logging and diagnostic features provided by the intelligent AC actuator controls are easily accessible. These actuators also use Profibus DP-V1 to communicate with the plant’s main distributed control system. Local AUMA Service took care of installation and commissioning on site.

For more information, contact Instrument Specialties, Inc. by calling 407-324-7800 or visit their web site at