Water Monitors
Q45D Dissolved Oxygen Monitor ATI Model Q45D Dissolved Oxygen monitor provides reliable oxygen measurement and reduced maintenance costs. The galvanic dissolved oxygen sensor uses a rugged 5 mil Teflon membrane to resist mechanical abrasions and tears. The membrane serves as a barrier to allow molecular oxygen to diffuse into the reaction cell where it is reduced, producing a small current which is proportional to oxygen concentration. [ more ] Q45P/R pH/ORP Monitor ATI's versatile Q45P/R pH/ORP system is designed for use in all industrial and municipal applications. The sensors are engineered to function normally in applications where conventional sensors quickly fail.  Conventional pH/ORP sensors have an “open reference system,” which means the reference element and electrolyte are in contact with the process. This allows chemicals to diffuse into the reference chamber and alter the reference system. As the reference junction becomes contaminated, the reference potential shifts. As chemicals attack the silver reference wire, the reference potential shifts and the sensor no longer functions. When any of these problems occur, cleaning and calibration cycles increase and the sensors fail much faster, all of which costs you time and money.  [ more ] Q22PX Universal pH Sensors Differential-style pH or ORP sensors that can be used with non-ATi monitors. Sensor mounting configurations include 1” NPT Convertible, Hot-tap, and Sanitary-style. Sensor outputs either mV or 4-20 mA signal that can be taken into your existing monitor. [ more ]   Q45CT Toroidal Conductivity Monitor ATI’s Model Q45CT toroidal conductivity system is designed for online monitoring of chemically aggressive process solutions. This sensor consists of two metallic ribbon coils that are fixed in place by the sensor jacket material. The drive coil is used to induce a current in the process solution. The second sensing coil is used to measure the current in the process solution, the magnitude of this current is proportional to the conductivity of the process solution. [ more ]   Q45C4 4-Electrode Conductivity Monitor While simple 2-electrode sensors are inexpensive and can provide accurate data, continuous monitoring of even relatively clean water can foul the electrodes and degrade the measurement. Maintaining accuracy is made more difficult when the amount of solids dissolved in the process varies over a wide concentration range. In this case, a simple 2-electrode sensor is limited by its cell constant, which means it cannot measure the process accurately. [ more ]   Q45C2 2-Electrode Conductivity Monitor Low-level conductivity measurements are essential for monitoring a variety of high purity water systems. The proper operation of deionizers, reverse osmosis membranes, ion exchange systems, and heat exchangers require constant monitoring to ensure high quality production  [ more ]     Q40CT Blind Toroidal Conductivity Monitor ATI’s Model Q40CT blind toroidal conductivity system is designed for online monitoring of chemically aggressive process solutions.  This blind, analog version is ideally suited for applications where reliable instrumentation is critical and economy of installation is essential. [ more ]   C10/77 Particle Counter ATI’s Model C10/77 Particle Sensor is designed to provide valuable particle data by continuously monitoring particle counts in raw water, filter influent, or filter effluent. Based on a laser light blocking principle, this sensor will provide particle count data over size ranges from 2 to 400 microns, with three 4-20 mA analog outputs and an RS-232/485 digital output supplied as standard. The scaling of the three 4-20 mA outputs is selectable by use of DIP switches mounted on the counter circuit board, and can be set from 0-127 up to 0-32,000 counts per ml., with one channel proportional to total particles, one channel proportional to particles in the range of 3-5 microns, and one channel proportional to particles in the range of 7-10 microns. The digital output provides actual particle counts for particle sizes 2, 3, 5, 7, 10, 15, 20, and 200 microns. This data can be used for computerized calculations of filter removal efficiencies as well as trending of particle data. [ more ] B10/77 Particle Alarm ATI’s Model B10/77 is a simplified particle sensor providing only one channel of particle measurement. The sensor operates from  unregulated 12 VDC power supplies and provides a single isolated 4-20 mA output proportional to particle counts for all particles 2 microns and above. The span of this output is operator selectable for ranges from 0-100 counts/ml up to 0-10,000 counts per ml. In addition, a relay output is available to provide a simple alarm when particle concentrations exceed a preset limit. As with the span of the analog output, this alarm setpoint is easily adjustable.  [ more ] Q45WQ Water Quality Panel ATI’s Model Q45WQ Water Quality Panel is a flexible system designed for continuous, on-line monitoring of multiple parameters in municipal water distribution systems and potable water treatment facilities. The instrumentation contained in each Water Quality Panel is selected by the end user and customized to meet your individual monitoring requirements.  [ more ]   Q45H/62-63 Residual Chlorine Monitor ATI Models Q45H62 and Q45H63 are reagentless and designed for on-line monitoring and control of chlorination systems. It is available in two versions: a free chlorine monitor for drinking water and cooling water, and a combined chlorine monitor ideally suited for “chloraminated” drinking water.  The combined chlorine system can also be used in wastewater effluents where sufficient ammonia is present prior to chlorination to result in a predominantly monochloramine residual.  Unlike on-line colorimetric and most amperometric monitors, Q45H systems utilize a membrane-covered polarographic sensor that does not require the addition of chemical reagents.  The Q45H system has no moving parts, so there are no pumps or motors that burn out or tubing breaks that create maintenance nightmares. All normal maintenance items are included with each system.[ more ] A15/79 Total Chlorine Monitor The ATI Model A15/79 Total Chlorine Monitor uses the standard iodometric method for the determination of total chlorine in highly contaminated samples.  A unique sensing technique is used to determine total chlorine concentration, while minimizing system maintenance requirements.  The system takes the reacted sample containing iodine and uses a membraned gas sensor rather than exposed electrodes. The gas permeable membrane allows only iodine to permeate into the sensor. Sample contaminants are eliminated from coming in contact with measuring electrodes, providing better stability and reducing sensor maintenance.  This method is ideal for very low range measurement of dechlorinated wastewater, where biological growth from sulfur reducing bacteria can cause severe fouling problems in contact systems. [ more ] Q45H/79 Total Chlorine Monitor While chlorine has become the most widely used disinfectant in the world, there are still some applications where monitoring chlorine residuals can present a challenge. Multiple forms of chlorine in drinking water, wastewater effluent, and cooling tower water require a Total Chlorine measurement to ensure that all chemical species are quantified. In some cases, the chlorine concentration is quite low and often below the detection limits of conventional monitors. [ more ]   B20 Residual Chlorine Recorder Providing permanent chlorine residual records normally means purchasing a residual chlorine monitor and connecting the output of the monitor to a separate recorder. ATI’s B20 provides an integrated solution to this problem, combining both the analyzer and recorder functions in a single package.  This means simpler installation, easier operation, and lower cost. And best of all, the system uses our direct measuring membraned sensor for reliable measurement with minimal maintenance. [ more ] Q45H/64 Dissolved Ozone Monitor ATI’s Model Q45H/64 Dissolved Ozone Analyzer is the ideal choice for on-line monitoring and control of ozonation systems. Capable of measuring DO3 concentrations as low as 0-200 PPB full scale, the system provides the sensitivity needed for demanding applications such as pharmaceutical grade water or semiconductor wash water. And with the standard 0-2 PPM range, the monitor is ideally suited to water bottling systems or municipal water treatment. Even high range applications requiring 0-20 or 0-200 PPM can be easily accommodated. [ more ] Q45H/65 Chlorine Dioxide Monitor ATI’s Model Q45H/65 Residual Chlorine Dioxide Monitor is designed for on-line monitoring and control of industrial disinfection systems. Chlorine dioxide is a powerful disinfecting agent used for treating potable water, cooling water, and food processing wash water. To ensure proper disinfection while minimizing disinfection by-products, the concentration of chlorine dioxide must be precisely maintained. [ more ] A15/82 Fluoride Monitor Fluoride is widely added to drinking water systems to help prevent tooth decay. It is normally added in the form of liquid hydrofluorosalicic acid, which can be easily handled and applied using standard metering pumps. While the fluoridation process is often controlled by simple flow proportional feed, monitoring of final fluoride concentrations is useful in providing an alarm in the case of overfeed problems. Optimum fluoride levels of around 1 PPM are safe, but control system problems resulting in concentrations above 2 PPM are considered excessive and need to be detected as early as possible. Loss of chemical feed can also be detected quickly and reliably with on-line fluoride monitoring. [ more ] A15/66 Residual Sulfite Monitor Dechlorination of wastewater effluent is common practice in many treatment facilities throughout the US. Strongly reducing sulfur compounds are used to eliminate chlorine residuals that might prove toxic to fish in the receiving stream. Because residual chlorine discharge limits are often very close to zero, monitoring residual values to comply with regulations has become very difficult, and controlling residuals at values between zero and a few hundred parts-per-billion is often not achievable. [ more ] A15/81 Dissolved Sulfide Monitor Sulfides can be found naturally in well water and can build up in wastewater collection systems due to anaerobic conditions that frequently occur. They are also used in mercury removal processes and are frequently found in tanning wastes. In drinking water systems, sulfides cause taste and odor problems. In wastewater systems, they can cause damage to concrete structures in collection systems and contribute to odor problems in treatment facilities. [ more ] A15/76 Turbidity Monitor ATI’s Model A15/76 Turbidity Monitor is designed to meet the needs of both municipal drinking water systems and industrial water treatment for reliable, low-range turbidity measurement. The turbidity sensor is available with either a White Light Source for EPA Method 180.1 compliance monitoring, or an infrared light source for non-reporting applications.  [ more ]   Q45N Dissolved Ammonia Monitor Continuous monitoring of ammonia in water and wastewater streams is becoming increasingly important for plant operations and process control. Unfortunately, on-line ammonia monitors are generally very expensive, complex, and labor intensive instruments. Most are automated versions of ammonia selective ion electrodes methods better suited to laboratory measurements. Others are automated colorimetric devices or instrumental methods that are difficult to justify on a cost basis. [ more ]