The new plumb-and-play OZ80 Ozone Analyzer from Electro-Chemical Devices features a reagentless design and offers a choice of three factory calibrated measurement ranges for accurate measurement in a system that can be up and running in less than 15 minutes, according to the company. A technician needs to simply mount the panel and connect the drain lines, plug in the power cord and select the outputs on the display as 0 to 2.0 ppm for water disinfection or 0-20.00 pm for oxidation and bleaching operations.
Dual range measurement of both ozone (O3) parameters is available with the OZ80 Analyzer. The OZ80 Analyzer features amperometric sensors manufactured with a gold cathode, a silver anode and a rugged microporous membrane to detect and monitor O3 levels in water. There are reportedly no reagents required with the OZ80 Analyzer.
The O3 sensors are smart sensors with their identity and calibration information stored internally. Communication between the OZ80 Analyzer’s T80 Transmitter and the O3 sensor is via MODBUS. The sensors are flow sensitive requiring a minimum flow rate of 0.5 ft/sec; above this flow rate, the reading is virtually independent of the flow rate. The OZ80 Analyzer’s constant head flow control device (CFD) maintains the optimum flow rate moving past the sensor for sampling purposes, according to ECD. The CFD’s automatic flow control capability reportedly eliminates the need for pressure regulators and rotameters. The minimum flow rate required by the CFD is 10 gal/hr, and the maximum flow rate is 80 gal/hr with the sample draining at atmospheric pressure.
The OZ80 Analyzer is available with an optional sensor auto clean configuration featuring a solenoid actuated spray cleaner that provides either a 30 psi process water or air. The spray cleaner removes films from the sensor head, which over time can affect measurement accuracy. There is rarely a need for manual wiping of the sensor head by maintenance technicians with the spray clean configuration, according to the company. Designed with ECD’s T80 Universal Transmitter, the OZ80 Analyzer includes a 128-x-64 pixel (2.75-x-1.5-inch) display. The display is black on grey with no backlight or blue on a white background with the LED backlight. The standard configuration features two 4-20 mA outputs, three alarm relays and MODBUS RTU. The enclosure is rated to IP65 and weatherproof.
