Ozone Analyzer and Control System

The EMEC Ozone Analyzer and Control System offers ease of use, accuracy, and reliability for the monitoring and control of Ozone in water. Using the EMEC LDSCL PLUS Ozone analyzer and controller, and the latest in Amperometric Cell Technology, Ozone ppm readings are continuous and updated every second. Built-in pH, and temperature compensation are standard.
The System below consists of the Controller, Filter, Flow Cell and Ozone Sensor:

Analyzer System on Backboard

EMEC Analyzer System on Backboard

Brief System Explanation

The image on the left shows a typical installation consisting of the following devices:

  • Filter – Typically a 60 micron filter is sufficient to keep particles and debris in the process water from entering the flow cell.
  • Analyzer – The EMEC LDS PLUS series of analyzers are user-friendly, and automatically cater to the different sensors that can be attached.
  • Flow Cell – The acrylic see-through flow cell incorporates the following items:
      • Flow Sensor: on the left of the flow cell is a flow switch, and upon adequate flow the silver bullet shaped float rises and triggers the flow sensor indicating to the system that adequate flow is now present, and control functions can be activated.
      • Temperature Sensor: the RTD sensor is located above the silver bullet float, and is used for temperature readout or compensation if required.
      • Sensor: The larger green and beige probe is the Amperometric sensor for measuring the amount of Ozone in ppm and will be displayed on the Analyzer.
      • The flow cell also contains an inlet pressure and flow regulator, and an easily accessible water sample port.

Individual System Components

Model: EMEC LDSCL PLUS

Ozone Controller

EMEC LDSCL PLUS Ozone Analyzer & Controller

Description

The EMEC Series LDSCL PLUS Analyzer / Controller offers cost-effective, user friendly control of Aqueous Ozone for Industrial Water Treatment applications. This controller accommodates an EMEC Ozone Amperometric Cell, with PID Control as Standard.

The user-friendly interface limits the need for reading the detail in the instruction manuals, and if you are familiar with programming other brands of controllers, you will find this to be the cutting edge, and easiest of set-ups.

  • PID Ozone Control
  • User Friendly Encoder wheel menu, with back-lit LCD Display
  • Control Outputs for PID 4-20mA, 2 x Pulse, & 2 x Relay
  • 4-20mA Outputs for PPM, and Temperature
  • Alarm & Probe Cleaning relays
  • Communication via Ermes Webserver or modbus
  • Optional mA or pulse water meter inputs for Feed-forward control
  • Optional Communication interfaces for Ethernet, GSM, or Modbus
  • Optional Communication interface provides Ermes Web-server access for on-line monitoring and data-logging
  • Use with EMEC Series PEF Flow Cell, and SCL10 Amperometric Ozone Sensor
  • Water Treatment
  • Pharmaceutical
  • Nurseries and Greenhouses

Model: EMEC PEF1R/E/K

Ozone Flow Cell & Probe Holder

EMEC Amperomectric Ozone Flow Cell

Description

The EMEC Series PEF Flow Cells / Probe Holders are made of See-Through Acrylic PMMA Material, for long lasting use.

With the unique, easy flow design, they come standard with Flow Sensor, Flow Adjustment, Built-in Sample Port, and Vent.

  • Includes EMEC SEPR Flow sensor – Flow Indication via a Red LED
  • Standard Tubing and Fittings
  • Includes Pressure & Flow Regulator
  • Flow Adjustment Knob
  • Built-in Sample Port
  • For use with EMEC SCL10/2 or SCL10/20 Ozone Amperometric Cell

Model: EMEC SCL10

Ozone Amperometric Sensors

EMEC Amperomectric Ozone Sensor

Description

The EMEC Series SCL10 Closed Amperometric Sensors offer reliable, repeatable and accurate measurements for Clean Water, Ozone measurements.

With the unique membrane, measurements are almost instantaneous with the controller updating the display every second.

  • Digital interface to controller, for Auto sensor and Range detection
  • pH, and Temperature Compensated
  • 15 PSI (1 Bar) Max Pressure
  • For use with EMEC Model LDSCL PLUS Controller (will auto select for Ozone)
  • For use with EMEC Model PEF1R/E/K Flow Cell
  • Two Probes available:
    • EMEC SCL10/2 Range for 0-2.000PPM
    • EMEC SCL10/20 Range for 0-20.00 PPM

Optional Re-circulation System for Calibration

Re-circulation System

Recirculated Generic Calibration Block Diagram

Re-circulation System Brief Explanation

With water analyzer systems, it may be challenging to accurately calibrate the analyzer due to the process ppm changing from the time the sample is taken, to the time the analyzer is actually calibrated.

For example: the analyzer is reading 1.05 ppm at the time the sample is taken. Then by the time the sample is confirmed by a 3rd party measurement (hand-held or lab test) to be say 1.3 ppm, then by the time the operator comes to calibrate the analyzer, the reading might be lower or higher than 1.05 ppm, so calibrating the controller to 1.3 ppm based on the analyzer initially 1.05 ppm would now be incorrect.

To solve this problem, we can provide a closed-loop water sample to the flow cell which would provide a stable sample to be calibrated correctly. Isolation valves are used to direct the water flow in a recirculated loop to the flow cell, while isolating the incoming process water. The system consists of a re-circulation pump, valves, fittings, and tubing to suit. The container would be supplied by the customer to suit the size and location of the process.

Download the re-circulation block diagram here

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