New

Dissolved Ozone Monitor

On-line, 0-2 ppm, Low Cost, Rugged
Model DOM-1

Price $1950.00 USD

This is a brief applications note to go along with the announcement of our exciting new DOM-1 on-line dissolved ozone monitor. Its range is 0-2 ppm, and its outputs are a digital readout, 4-20 mA loop, and set-point controlled relay. Using proprietary technology, our instrument strips the ozone from the water stream and reads it as the concentration of ozone released into a measuring chamber. This has advantages over conventional methods for measuring dissolved ozone: 1 - ORP (Oxidation reduction potential): Low cost and fairly maintenance free, but ORP reacts to any oxidizing influences in the water such as chlorine. 2 - Electrochemical cell (polaragraphic) such as Orbisphere, ATI and Rosemount: They work very well for a while and then the probes need expensive maintenance. 3 - Indigo test such as the Hach colorimeter. No on-line version. Our DOM-1 has a provision for drawing samples for a Hach colorimeter or similar instrument for convenient calibration checking and recalibration. 4 - UV absorption analyzer. Works well in ultra pure water. The Eco Sensors instrument strips ozone from a .15 L/min (3 gal/H) sidestream using a proprietary process. To do this, the stripper section requires 14 psi (1 bar) water pressure. The connection to our instrument is a 1/4" NPT female port or a hose barb. The DOM-1 instrumentation package includes a water strainer, pressure regulator, and hardware to mount everything to the plant wall. Our instrument is very easy to calibrate to a laboratory reference. We have a tap to draw a lab sample, and a calibration adjustment that is easy to use. Our replacement parts are very low cost and easily replaceable by plant personnel. They are filters, pressure regulator and stripping cartridge.

 

TYPICAL APPLICATIONS Bottled water plants, food treatment systems, equipment sterilizing systems, wastewater treatment treatment monitoring, factory pure water process and control.

Features Specific to ozone Insensitive to most interfering chemicals such as salt and chlorine Low cost and easily replaceable parts User can easily calibrate the instrument to any in-house standard Set-point relay for alarm or system control 4-20 mA output to PLC or other remote readouts and controllers

Requirements Water feed at > 14 psi (1 bar) .15 liter/minute (3 gallons/hour) flow to drain or reclaim 12 VDC 800 mA power supply Specifications Accuracy: better than 20%. 10% typical Readout: 0-2 ppm in .01 ppm increments Lowest reading: .03 ppm