EMEC ECL6 and ECL12 Chlorine Open Amperometric Cells

The ECL Range of EMEC Open Amperometric Cells offer simple operation for Chlorine measurement and control for dirty water applications. The EMEC ECL6 and ECL12 Open Amperometric Cells are used for fresh, and salt water Chlorine measurement respectively. To be used with the EMEC LDPHCL4-MA Controller, they offer ease of use, accuracy and reliability where readings are continuous, and updated every second. Built-in temperature and pH compensation are incorporated.

The example system below consists of the controller, filter, and flow cell Chlorine 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 Chlorine 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 LDPHCL4-MA

Dual Channel pH and Chlorine Controller for Open Amperometric Cells

EMEC Dual Channel pH and Chlorine Controller - Open Amperometric Cells

Description

The EMEC Model LDPHCL4-MA controller offers dual control of both pH and Chlorine measurements. It accommodates the EMEC ECL range of Open Amperometric sensors, pH, ORP, and temperature sensors. 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.

  • Dual Channel pH and Chlorine Control
  • Various Models of Chlorine Open Amperometric Cells available to suit
  • Programmable for dosing Acid/Base and Chlorine
  • Proportional or On/Off Control for pH and Chlorine
  • Outputs: 1 x pH 240Vac Relay, 2 x pH Pulse, 1 x Cl2 240Vac Relay, 1 x Cl2 Pulse
  • 3 x mA Outputs for pH, Chlorine & Temperature
  • Tanks level inputs: 2 x pH, 1 x Cl2
  • Inputs for Stand-by, and Flow
  • Alarm Relay Output and RS485 Port
  • LCD display shows measured pH and Chlorine (mg/L)
  • Manual/Automatic Temperature Compensation (for pH only)
  • Max dosing alarms
  • Compatible pH Probe required, and the EMEC Range of Open Chlorine Amperometric Sensors and Flow Cells
  • Optional GSM/GPRS modem or Ethernet/LAN card for remote connectivity via webserver and alarming via SMS/e-mail
  • Dirty Water Applications – Fresh or Salt Water
  • Cooling Towers
  • Swimming Pools
  • Nursery and Greenhouse
  • Agriculture
  • Waste Water Treatment

Model: EMEC ECL6

Open Amerometric Cell – Fresh Water

Model: EMEC ECL12

Open Amerometric Cell – Salt Water

EMEC ECL6 and ECL12 Chlorine Open Amerometric Cells

Description

The EMEC Range of ECL Open Amperometric Cells are ideal for use in dirty water applications. Different models are available for Fresh or Salt Water applications, with a built in flow sensor as standard. The flow cell also incorporates place holders for pH and Temperature Sensors for pH and Temperature Compensation. An ORP Sensor slot is also available.

  • Organic & Inorganic, Free Chlorine Measurment for Hypochlorous Acid
  • Operating pH range of 6-8
  • Measuring range 0-10.00 ppm
  • 0.05 ppm Resolution
  • Temperature Range 5-40°C.  NOTE: 1% increase in CL2 reading per 1°C increase
  • 10 Bar Max Pressure
  • pH Temperature compensation of pH with optional EMEC ETEPT temperature sensor
  • pH Compensation of CL2 with optional EMEC EPHS pH sensor
  • Use EMEC ECL6 108.1646.1 with EMEC WDPHCL
  • Use EMEC ECL6 108.1365.1 with EMEC LDPHCL4
  • Chlorine and pH Control for Dirty Water Applications
  • Cooling Towers
  • Swimming Pools
  • Nursery and Greenhouse
  • Agriculture
  • Waste Water Treatment

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

Related Products

Chlorine Analyzer

Chlorine Analyzer

Flow Cells and Probe Holders

Probe Holders

EMEC Chemical Dosing Pumps

Chemical Dosing Pumps