Ideal For Commercial and Industrial Boilers, Including Facility HVAC, Electric Power Generation, Food/Beverage, Chemical, Oil Refineries and More.

With an intelligent controller design featuring PID output, the Model 61 Boiler Blowdown System from Electro-Chemical Devices, Inc., modulates the blowdown control valve to allow the maximum level of dissolved solids regardless of load conditions for greater maintenance efficiency at lower cost.

During routine boiler operation, dissolved solids become concentrated in the tank water. As the solids increase in concentration, they may cause damage to piping, steam traps and other process equipment. Sludge also can form in the boiler, which impairs its operational efficiency by reducing its heat transfer capabilities.

To avoid these problems, the boiler water must be periodically sampled, tested and then discharged or blown down with either automated equipment, such as the Model 61 BBS, or by manual techniques. The boiler is replenished with fresh feedwater commensurate with the blowdown rate. Conductivity (TDS) sensors are utilized to determine when the boiler water must be replaced.

To avoid these problems, the boiler water must be periodically sampled, tested and then discharged or blown down with either automated equipment, such as the Model 61 BBS, or by manual techniques. The boiler is replenished with fresh feedwater commensurate with the blowdown rate. Conductivity (TDS) sensors are utilized to determine when the boiler water must be replaced.

The Model 61 BBS sample conditioner reduces water temperature prior to sample measurement. By cooling the sample, the accuracy of the conductivity (TDS) measurement improves. The conductivity measurement is made with the controller or optional two-wire transmitters (ECD’s Model T23 or T28) and the ECD Model CS10.

The Model 61 BBS features ECD’s Model C22 Controller. The C22 includes an easy-to-read local display and XY graphical plot capability. It is a line powered instrument with PID control functions, logic functions and timers. The standard Model 61 is supplied with one 4-20 mA output and two alarm relays. Up to 4 outputs and 8 relays are available as an additional option.

The C22 Controller’s 4-20 mA output can be configured as a PID control output. The proportional/integral signal is assigned to modulate the control valve to keep the surface blowdown rate uniformly close to the maximum allowable dissolved solids level, regardless of load conditions. This automated approach to blowdown lowers the operating costs of the boiler when compared to manual blowdown techniques by minimizing the blowdown rate, which lowers fuel consumption and make-up water consumption.

The C22’s timers also can be configured to periodically trigger a relay for bottom blowdown, which may only be needed on a weekly or monthly basis. The Model 61 BBS also can be connected directly to a distributed control system or programmable logic controller via the Model T23 or T28, 4-20 mA, two wire transmitters.

The standard conductivity (TDS) range of the Model 61 BBS CS10 sensor is 0 to 10,000 µS. It operates over a temperature range from 0 to 100°C under pressures from 0 to 75 psig.

Ideal For Surface Water, Wastewater Treatment, Industrial Water, Mixing/Dilution, Boiler Water, Cooling Water, Water Recycling, Phase Separation Processes

Designed with an innovative multi-beam optical sensor, highly intelligent electronics and self-cleaning technology, the new Triton TR8 Turbidity Analyzer from Electro-Chemical Devices, Inc., sets a new standard for precise, highly reliable water quality monitoring with virtually no maintenance.

The Triton TR8 TA’s sensor measures turbidity with a unique multi-beam optical assembly. The first light beam is a reference detector that compensates for changes in the LED light source caused by aging or other variables. The second light beam detects the short path length, which is best of high concentration measurement. The third light beam measures the longer path length, which is best for lower concentrations.

With its highly intelligent microprocessor-based design, the Triton TR8 TA’s sensor electronics constantly adjusts turbidity signal readings versus the reference detector for superior measurement accuracy. A built-in digital filter helps to suppress potentially interfering signals while self-monitoring diagnostics assure high reliability.

The Triton TR8 TA’s sensor assembly relies on a long-life near infrared LED light source (880 nm), and the 90-degree scattered light method in accordance with ISO 7027 / EN 27027. The sensor is factory calibrated in formazine, FNU (Formazine Nephelometric Units), and is plug-and-play ready for applications. Two nonvolatile memory banks are also available onboard to store user-initiated calibration data.

The highly accurate Triton TR8 TA operates over wide measurement range with output available in multiple units: 0.000 to 9999 FNU, or 0.00 to 3000 ppm, or 0.0 to 3.0 g/l, or 0 to 20 percent. The TR8 TA sensor features an error rate of less than 5 percent of reading with repeatability greater than 1% percent of reading.

The rugged Triton TR8 TA’s sensor assembly features an inclined face that is oriented into the liquid flow for optimum self-cleaning, which greatly reduces plant maintenance requirements to the occasional manual sensor swiping with a soft cloth. An optional automated mechanical wiper also is available for heavy-duty service environments or for difficult-to-reach sensor locations.

Developed for rugged water treatment environments, the tough Triton TR8 TA sensor is designed to operate at ambient temperatures from -5 to 50°C (20-120°F). It withstands pressures up to a maximum of 6 bar at 25°C and 1 bar at 50°C.

The TR8 TA’s transmitter digitally communicates with the turbidity sensor and provides a 4-20 mA output and alarm relay. The TR8 TA’s controller features ECD’s multi-bus architecture, with up to 2 outputs and 4 SPDT relays. It includes a configurable display and HART protocol communication is available as well. The turbidity sensor can be located up to 200 m away from the controller.

Accurate measurement of turbidity with the Triton TR8 TA is important in a wide range of surface water, municipal water and industrial water treatment applications. Turbidity is the cloudiness or haziness of a water sample, which is caused by suspended particles in the water that are typically clay and silt. Viruses and bacteria attach themselves to the particles and are a critical indicator of overall water quality.

Municipal water engineers and plant technicians treating water for sulfates and hydrogen sulfide (H2S) will find the new S10 and S17 Sulfide Sensors from Electro-Chemical Devices (ECD) provide advanced instrumentation to help plants and processes operate smoothly and efficiently with lower operating costs.

Sulfates and H2S are often present naturally in ground water in areas near oil fields, coal mines, peat deposits and areas where geothermal activity occurs. They give the water a bitter taste and the odor of rotten eggs that if left untreated makes it unsuitable as a source of municipal drinking water. With proper analysis of sulfide levels and treatment, however, the water can then be made available to the public.

ECD’s advanced S10 and S17 Sulfide Analytical Sensors provide accurate, reliable analysis of sulfide levels that helps ensure proper water treatment. The S10 Sensor is an immersion or an insertion style sensor, and the S17 is a valve retractable style sensor. They are fully re-buildable and feature a 316 stainless steel body that incorporates the sensing element, a temperature module and a signal conditioner with cabling.

Sulfides are also commonly present in sewage and wastewater treatment plants. The S10 and S17’s pIon electrode cartridge measures the activity of “free” Sulfide ions in solution in concentrations from 0.01 to 32,000 ppm over a pH range from 11-14 pH. The pIon can measure Sulfide ions over a wide temperature range of 0 to 80º C.

Both the S10 and S17 Sulfide Sensors utilize ECD’s replaceable electrode cartridges, which can be selected to measure pH, ORP, dissolved oxygen, conductivity and resistivity. These cartridges provide specific solutions for the most demanding measurement requirements, and they are constructed in a variety of configurations and materials to support diverse industries. The application specific sensor cartridges utilize field proven construction materials that are selected for long life and accuracy.

The S10 and S17 Sensors can be integrated with ECD’s C22 Analyzer to provide automatic pH compensation for a total Sulfide measurement system. The C22 Analyzer features ECD’s advanced Multi-Bus architecture. The Multi-Bus design enables customization of up to four inputs and six outputs in a convenient 1/2 DIN NEMA 4X enclosure. Channel comparisons or measurement compensation, configurable conductivity concentration curves, the graphical display of data and PID control on the outputs or up to 8 optional SPDT relays are just a few of the powerful features in this easy to use instrument.

S10 Immersion or Insertion Sensor
The S10 Sensor is designed with a 0.75-inch MNPT compression fitting as the process connection. This construction feature allows a variable insertion length to accommodate installation in pipe tees, flow cells or through tank walls. If the trunk fitting is reversed, the sensor can be installed in a pipe for submersion in a tank.

S17 Retractable Sensor
The S17 Sensor is designed with a 1-inch MNPT ball valve, a 1-x-0.75 inch reducer and a 0.75 inch MNPT compression fitting to provide the process connection. Loosening the compression fitting allows the sensor to side freely through the ball valve for insertion either into the process or retraction from the process. Once the sensor is retracted, the ball valve can be closed and the sensor can be removed for maintenance or replacement without shutting down the process line.

Links of Interest
S10 & S17 Analytical Sensors Brochure
pH Sensor Series product overview

Ideal For Oil/Gas Refineries, Chemical Plants, Electric Power Generation, Food/Beverage, Institutional Facilities and Semiconductor Fabs

Plant operators with Cooling Towers who struggle with the twin demands of continuously reliable operation versus maintenance costs will find the new rack-mounted Model 2122 Cooling Tower Control System from Electro-Chemical Devices, Inc., reduces waste and cost by eliminating expensive excess chemical feeds.

Water-based wet Cooling Towers are commonly made of concrete, steel, or fiberglass and operate based on the evaporative principle of cooling. They are widely utilized in the process industries as well as in HVAC systems supporting large institutional or commercial buildings. Various types of corrosion from common rust to scaling and fouling are a constant maintenance concern, which requires expensive chemical treatment with biocides and corrosion inhibitors that also create pollutants.

ECD’s new plug-and-play Model 2122 Cooling Tower Control System (CTCS) is designed to apply the various chemicals utilized to prevent corrosion, scaling and fouling. A biocide timer is built into the system for ease of maintenance. It is simple to install, set-up and operate right out of the box. The Model 2122 is an integrated system, which controls acid feed, blowdown and inhibitor feed in cooling processes. Acid feed is controlled via pH monitoring, blowdown is controlled via conductivity (TDS) and the inhibitor is fed on a user selected time basis.

The highly advanced Model 2122 CTCS features a unique timer-based overfeed function that locks out the blowdown cycle or the acid/base feed function. It triggers a process alarm if the acid feed or blowdown cycle proceeds longer than the operator’s predetermined cycle time. The overfeed alarm function allows plant operators to prevent excessive harsh chemical treatments, which are costly and also over time can affect the life of the tower, piping, pumps and other ancillary cooling system equipment.

The advanced Model 2122 CTCS consists of ECD’s Model 22 Controller, a Model PHS10 pH sensor and a Model CS10 conductivity sensor. The C22 Controller is an intelligent analyzer with control logic and failsafe interlocks, which are utilized to inhibit excess chemical feed. Both the period and dose time are easily controlled by the system operator via a backlit LCD graphical display with membrane switch touch control. The C22 features four SPDT relays and is rated NEMA 4X for rugged environments. An optional digital input card also can be added to alarm no-flow conditions for extra safety.

The PHS10 pH sensor and the CS10 conductivity sensor are easily installed and serviceable insertion style devices. Their signal conditioned outputs provide a reliable noise-free signal to the C22 Controller’s analyzer for precise measurement and control. The PHS10 measures pH from 0 to 14 pH at 80C and withstands pressures from 0 to 100 psig. The CS10 measures conductivity from 500 us to 20 ms at 80C and withstands pressures from 0 to 100 psig.

Ideal for Drinking Water, Surface Water Monitoring, AquaCulture Municipal Wastewater Treatment, Industrial Water Treatment.

With a state-of-the-art fluorescence quenching (FQ) sensing element, the breakthrough Triton DO8 Dissolved Oxygen Sensor from Electro-Chemical Devices (ECD) delivers exceptionally accurate DO measurement with greatly reduced maintenance requirements for a low cost of ownership over a long service life in a wide range of municipal and industrial water treatment applications.

The trouble-free Triton DO8 Sensor is designed with precision FQ optical technology coupled with intelligent microprocessor-based electronics. The self-monitoring DO8 stores calibration data within the sensor, which minimizes maintenance over long service intervals while providing stable, dependable DO measurement.

The highly accurate Triton DO8 Sensor features a maximum error rate of less than 2 percent, repeatability of ±0.5 percent and resolution of 0.01 ppm or 0.01 percent saturation. It operates over a wide measurement range with three different outputs from 0 to 20 mg/l (0-20 ppm), 0-200 percent saturation or 0-500 hPa (0-6 psi).

Developed for rugged municipal and industrial water treatment environments, the tough Triton DO8 Sensor is designed to withstand ambient temperatures from -20 to 60°C (0-140°F) and records measurements at temperatures from -5 to 50°C (20-120°F). It withstands pressures up to a maximum of 10 bar (145 psi).

The Triton DO8 Sensor relies on a proven fluorescence quenching method to determine the oxygen concentration in water. A circular layer of optically-active, oxygen-sensitive molecules is integrated into an easily replaceable cap. This durable layer is highly permeable to oxygen and rapidly equilibrates to its surroundings. The cap aligns the optically-active fluorescence layer above two optical components inside the sensor—an emitter and a detector.

The sensor’s emitter flashes a green light at the layer and the layer fluoresces back a red light. The duration and intensity of the fluorescence are directly dependent on the amount of oxygen in the layer. With little to no oxygen in the layer, the response is longer and more intense. The presence of more oxygen, however, quenches (reduces) the fluorescence effect.

The Triton DO8 Sensor continuously analyzes the oxygen level, water temperature and air pressure to calculate dissolved oxygen values. Via digital communications, the DO8 sends DO data to ECD’s C-22 Controller, which provides a 4-20mA output signal to a water treatment plant’s control room. The RS-485 digital signal is nearly immune to common EMI/RFI noise that is typically a problem in many plant environments.

Unlike amperometric sensors, the Triton DO8 has no membranes to replace, no electrolytes to refill and no anode/cathode assemblies to service or replace. The only service required is the simple replacement of the DO8’s sensor cap, which lasts two years or longer, and the occasional wiping of the sensor head with a damp rag.

Ideal For pH, ORP, Specific Ion, Dissolved Oxygen, Conductivity & Resistivity

Engineers and technicians looking for a flexible, cost-effective solution to measuring a wide range of parameters in liquids will find the new S10 & S17 Analytical Sensors Brochure from Electro-Chemical Devices (ECD) provides advanced instrumentation to help them keep their processes operating smoothly and their plants running efficiently.

The ECD S10 & S17 Product Family consists of two unique sensor designs and replaceable electrode cartridges. The S10 Sensor is an immersion or an insertion style sensor, and the S17 is a valve retractable style sensor. They are fully re-buildable and feature a 316 stainless steel body that incorporates the sensing element, a temperature module and a signal conditioner with cabling.

For measurement purposes, the S10 and S17 Sensors both rely on ECD’s replaceable electrode cartridges to measure pH, ORP, specific ion (pION), dissolved oxygen, conductivity and resistivity. These cartridges provide specific solutions for the most demanding measurement requirements, and they are constructed in a variety of configurations and materials to support diverse industries.

The pH and ORP cartridges are available with either Radel (PES) or PEEK construction configurations with full crown, double or single tine style pH bulb protection. The pION cartridges are not limited to laboratory use and some are suitable for continuous online measurement. The DO electrode is a galvanic cell with a lead anode, silver cathode and Teflon® membrane. The conductivity and resistivity electrodes are designed in both contacting and toroidal sensor configurations for application flexibility.

New ECD S10 & S17 Analytical Sensor Brochure

S10 Immersion or Insertion Sensor
The S10 Sensor is designed with a 0.75-inch MNPT compression fitting as the process connection. This construction feature allows a variable insertion length to accommodate installation in pipe tees, flow cells or through tank walls. If the trunk fitting is reversed, the sensor can be installed in a pipe for submersion in a tank.

S17 Valve Retractable Sensors
The S17 Sensor is designed with a 1-inch MNPT ball valve, a 1-x-0.75 inch reducer and a 0.75 inch MNPT compression fitting to provide the process connection. Loosening the compression fitting allows the sensor to side freely through the ball valve for insertion either into the process or retraction from the process. Once the sensor is retracted, the ball valve can be closed and the sensor can be removed for maintenance or replacement without shutting down the process line.

Six Points of Design Flexibility
The ECD S10 & S17 Sensor Product Line features six points of design flexibility. These advanced design features help plant engineers configure the optimum sensor to provide precise measurement with low instrument life-cycle costs.

ECD’s sensors and electrodes measure multiple parameters in harsh fluids and environments with built-in signal conditioning for noise-free (accurate) measurement. The sensors come with various process fittings and insertion lengths, and the replaceable electrodes feature application specific cartridges that offer long life.

Links of Interest
S10 & S17 Analytical Sensors Brochure
pH Sensor Series product overview

The highly intelligent Model T28 Transmitter designed for ECD’s innovative analytical instrumentation product line has received FM and CSA approvals. These approvals allow the Model T28 to be used in hazardous locations where combustible gases and vapors are potentially present and represent a safety hazard to people, equipment and facilities.

ECD’s Model T28 Transmitter is a sophisticated microprocessor-based, two-wire design that is intrinsically safe, explosion-proof and easy to use. The electronics are sealed and meet the requirements of FM Class I, II and III, Div 1, Groups A-G, making it suitable for application in a wide range of hazardous industries, including chemical, petrochemical, pharmaceuticals, and others.

The feature-rich Model T28 in combination with ECD’s popular universal S10 and S17 sensors represents a powerful analytical instrumentation system for the measurement of pH, ORP, specific Ion (pION), dissolved oxygen, conductivity or resistivity. The Model T28 features a versatile digital display with a 24-character supertwist alphanumeric LCD screen that displays operational and diagnostic menus. The LCD module can be rotated to accommodate viewing angles in a variety of installation mounting orientations. Contrast is adjustable for differing ambient light conditions. The main menu displays the process identification, variables (in engineering units), percent output and temperature.

ECD’s T28 transmitter is enclosed in a 300 series stainless steel housing that meets NEMA 7 requirements for rugged outdoor operating conditions. The enclosure incorporates sealed and isolated wiring and electronics compartments. A universal style mounting bracket allows for easy wall or pipe mounting.

Calibration and parameter selections are simply performed using a magnetic screwdriver accessed through the front viewing window. This approach eliminates the need to declassify the hazardous area during routine maintenance.

The 24 VDC loop powered Model T28 transmitter sends an isolated 4-20 mA current signal to a DCS, PLC, controller or recorder. The transmitter can be located up to 3 miles from the power source.