Municipal water system and industrial process engineers in search of an analyzer that accurately measures near zero levels of chlorine will want to learn more about the plug & play, long-life DC80 De-Chlorination Analyzer from Electro-Chemical Devices (ECD), which utilizes a zero-shift methodology to ensure stable and reliable chlorine measurement prior to effluent discharge.
When measuring near zero amounts of chlorine, conventional amperometric chlorine sensors are unstable, and this leads to inaccurate or inconsistent readings. In comparison, the DC80 De-Chlorination Analyzer utilizes a “zero-shift” methodology to provide accurate measurement and to protect total chlorine sensors from damage, which occurs when the water samples measured contains near zero or zero levels of chlorine.
Automatic compensation
The DC-80 De-Chlorination Analyzer monitors chlorine in drinking water, wastewater, cooling water and other de-chlorination applications from 0.05 – 20 ppm. Its mounted system includes built-in flow control, which eliminates the need for complicated plug-and-play design installs quickly right out of the box. The DC80 features advanced panel pressure regulators and rotameters. Built-in automatic pH compensation for samples between 4 and 12 pH also eliminates the need for expensive reagents to reduce maintenance and life-cycle costs.
The analyzer’s total chlorine sensor is a three electrode amperometric sensor with a gold cathode, silver halide anode and 304 stainless steel counter electrode. The counter electrode provides a stable base potential that minimizes drift for superior accuracy. The total chlorine sensor has a micro-porous membrane that allows ions to diffuse in and out of the sensor.
The analyzer’s pH sensor provides accurate compensation for samples between 4 and 12 pH, which eliminates the need for a sample conditioning system. The total chlorine sensor graphically displays both the total chlorine and pH levels for easy trend analysis. The DC80 Analyzer is available with either 110-240 VAC or 24 VDC power. The standard configuration features dual measurements, two 4-20 mA outputs and three alarm relays. The user friendly DC80 also is available with an auto clean option that includes a solenoid actuated spray cleaner using either 30 psi process water or air. An easily adjusted timer controls the period and duration of the cleaning cycle.
