Temperature control for cooling systems with a heat exchanger

This is a common application for cooling with a heat exchanger. 

The Bürkert system solution uses a proportional valve Type 6023 and its controller Type1094 with temperature transmitter. The controller is an external device. Instead of this the cable plug temperature controller Type 8625-2 could be used with the Burkert proportional valve.

This system solution guarantees accurate temperature control of the fluid and needs less mounting space due to compact system.

Process Control

Online Automation Course: Water Quality Monitoring

Online Automation Course: Water Quality Monitoring

Water Quality Monitoring

 Monitoring water quality levels including Total Dissolved Solids (TDS) and Total Suspended Solids (TSS) to ensure that your drinking water remains inside accepted safe levels. Total Dissolved Solids refer to any minerals, metals, salts, cations or anions dissolved in water. This includes anything present in water other that the pure water (H2O) molecule and suspended solids (suspended solids are any particles / substances that are neither dissolved nor settled in the water, such as wood pulp). PH and Turbidity levels are monitored and measured as well.In general, the total dissolved solids concentration is the sum of the cations (positively charged) and anioins (negatively charged) ions in the water. Parts per million (ppm) is the weight-to-weight ratio of any ion to water.

Flow meter Automation

Advanced Process Controls

Lean Times Demand Faster Returns

Centurion Controls can help sustain the life of your assets and maximize the operational performance of your plant, factory, or mill. Learn more about how Centurion Controls can help you reduce costs and increase efficiency during these challenging economic times.

Optimize the Process with Advanced Process Control

Centurion Controls  Advanced Process Control and Optimization applications address all aspects of 
process optimization, from improving regulatory loop control to globally optimizing the entire 
process based on a unique layered approach. Centurion Controls is unique in the industry with its 
multi-faceted optimization approach. This approach provides a scalable, benefits-driven approach 
for the deployment and long-term sustainability of the solution leveraging a common skill set from 
base Advanced Process Control technology to multi-unit and multi-plant optimization. Centurion 
Controls technologies are designed to be flexible and applicable to a wide range of industrial 
processes, are more easily implemented than competing products, and provide leading edge 
technologies for the maintenance and long-term sustainability of the solutions. As the foundation of 
Centurion Controls multi-faceted optimization approach, APC provides the base for increasing 
economic benefits of your process in a user-friendly environment. Project payback periods of less 
than a year are typical with sustained benefits lasting indefinitely.

Benefits of Centurion Controls APC application:

        Increase profitability through increased production, reduced operating costs and improved 
product quality.

        Improve plant safety with more flexible operations and early detection of abnormal events.

        Increase employee productivity through improved operator effectiveness and lower 
engineering requirements.

        Achieve the highest return on investment and continue to deliver sustainable results 
throughout the entire application lifecycle.

        Improve profitability by increasing production and decreasing costs with Centurion Controls  
     modeling and multivariable advanced control and optimization products.

        Ongoing advanced control and optimization of plant operations ensures responsiveness to 
inevitable changes in business demands through close linkages with planning, scheduling, and 
management functions. Our unique solutions improve profitability by increasing throughput, 
reducing costs, increasing yields, and improving product quality.

        Advanced Control and Optimization products address all aspects of advanced process 
control and optimization—from improving regulatory loop control—to globally optimizing the entire 
process based on a unique layered approach. This model allows new technologies to be easily 
added at any time to a common platform that meets optimization objectives without compromising 
future opportunities to improve business performance.

Drinking Water Contamination Warning Systems & Water Quality Monitoring / Testing

We have developed drinking water contamination monitoring system (Water Quality Monitoring). Our turn-key systems (including valves, meters, sensors, pumps, automated remote software, etc.) and processes monitor water quality levels online and real-time to ensure that your drinking water remains inside accepted safe levels. These water quality testing systems may be strategically place throughout municipal water systems at key points and may be programmed to alarm and communicate directly to the municipality officials by cell phone when contaminants are detected.

Our systems are able to measure:  • Dissolved oxygen  • pH • ORP • Conductivity • Harmful Chemicals  • Temperature • Turbidity • TSS (total suspended solids) • Ammonium • Nitrate • Potassium • COD (chemical oxygen demand) • TOC (total organic carbon) • DOC (dissolved organic carbon share of TOC) • SAC (spectral absorption coefficient) • BOD (biochemical oxygen demand)

Key Benefits:    • Ensure safe drinking water for city residents  • Streamline the water monitoring process

• Increase water quality monitoring efficiency and control   • Monitor data in real-time 24/7/365 from any computer

• Effective tool against contamination and bio-terrorism   • Save money by cutting employee time and labor

Water Treatment Processes

Effluent and Waste Water Treatment

Improving the performance of your water treatment systems can reduce operating costs and reduce environmental pollution. Most companies operate effluent treatment plants to reduce the potential for pollution of receiving waters and to comply with discharge consent conditions. Effective management and control of the processes used for effluent treatment will help you to reduce operating costs and increase profits.

Improving the performance of your water treatment systems will reduce your operating costs and make it easier for your site to comply with its discharge consent conditions. A thorough understanding of the properties of your company's water treatment controls and systems is essential for cost-effective and environmental friendly output.

Our processes can also monitor water quality levels including Total Dissolved Solids (TDS) and Total Suspended Solids (TSS) to ensure that your drinking water remains inside accepted safe levels. Total Dissolved Solids refer to any minerals, metals, salts, cations or anions dissolved in water. This includes anything present in water other that the pure water (H2O) molecule and suspended solids (suspended solids are any particles / substances that are neither dissolved nor settled in the water, such as wood pulp). PH and Turbidity levels are monitored and measured as well.

OLR

Overload Relays

The Siemens solid-state overload relays up to 630 A with internal power supply have been designed for current-dependent protection of loads with normal and heavy starting against excessive temperature rises due to overload, phase unbalance or phase failure.

An overload, phase unbalance or phase failure result in an increase of the motor current beyond the set motor rated current. This current rise is detected by the current transformers integrated into the devices and evaluated by corresponding solid-state circuits which then output a pulse to the auxiliary contacts. The auxiliary contacts then switch off the load by means of a contactor. The break time depends on the ratio between the tripping current and operating current and is stored in the form of a long-term stable tripping characteristic (see Characteristics). The "tripped" status is signaled by means of a switch position indicator (see Functions). The contactor is either reset manually or automatically (see Functions) after the recovery time has elapsed (see Functions).

The devices are manufactured in accordance with environmental guidelines and contain environmentally friendly and recyclable materials. They comply with important worldwide standards and approvals.

D.O.L Starter

Direct On-Line  Starter With power line and Control Circuit.

Star-Delta

                                              Power Circuit of Star-Delta Starter

Level Transmitter

Level Transmitter which is use to measured level.

it is using in a Chemical Industry. 

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Historical background of PLC

Industrial automation in process control and manufacturing plants leads to introduce the era of manufacturing plants leads to introduce the era of programmable logic controller in short we call it PLC. In the early 1960s and 1970s relays, timers, counters, and sequencers were all consisting of electro-mechanical in nature. Many control panel contained hundreds of these electro-mechanical devices and, in some cases, a mile or more of wire.The primary negative aspect of electro-mechanical control was that reliability was low, in contrast to the maintenance costs associated with keeping the maintenance costs associated with keeping these panels operating, which were extremely high.The automation in industry complained that there all cost to purchase and replace a single relay could run as high as fifty dollar or more.

A second major factor was the time, expense, and labor required when a change in control needs dictated a control panel modification.dictated a control panel modification. In fact, during the model year changeovers, the auto industry discarded entire control panels and replaced them with new ones as the quickest and cheapest solution.The programmable controller is a solid-state electronic device designed in the early 1970s to replace electro-mechanical relays, mechanical replace electro-mechanical relays, mechanical timers, counters, and sequencers. Keep in mind that the first PLCs were little more than relay re-placers

Functional description of PLC

lHardware of PLC:

  1. Power supply module

  2. Central Processing Unit (CPU)

  3. Input / Output modules

  4. Programming device or Programmer

lPLC Input module:

lPLC Output module:

lScanning sequence of PLC:

lAdvantages of PLC:

  1. Smaller physical size than hard-wire solutions.

  2. Easier and faster to make changes.

  3. PLC has integrated diagnostics and override                   

        functions.

  4. Diagnostics are centrally available.

  5. Application can be immediately documented.

Sensors & Transducers

lPressure sensing & measuring elements

lLevel sensing & measuring elements

lTemperature sensing & measuring elements

lFlow sensing & measuring elements

Concept of different programming software

lCX-Programmer for Ladder diagram

lCX-Process tool for Function block development

lNS-Designer for Operator station

lCX-Supervisor for SCADA application

lCX-Simulator for Program testing

CX-Programming Environment

CX-Process tool Environment

NS-Designer Environment

CX-Supervisor Environment

Maintenance of PLC

l Preventive Maintenance

l On line Maintenance

l Off line Maintenance

Before maintenance of PLC an Engineer must have:  

l Training

l Proper documentation

l Spares parts

l Practical working experience on PLC

Introduction to PLC

l Control:

By control we mean that the physical variables/process variable are kept constant as the desired value.

l Type of control:

          1. Manual control

          2. Automatic control

l Type of Automatic control:

        1. Open loop control

        2. Close loop control

l Type of Close loop control:

        1. Feed-forward control

        2. Feed-back control

l Advantage of Automatic control:

       1. Increased production

       2. Improve quality

       3. Saving in Raw material, Energy, Manpower.

       4.Increased Safety, etc.

l PLC:

         A Programmable Logic Controller is a special form of microprocessor based controller that uses a programmable memory to store instruction and to implement function such as logic, sequence, timing, counting, comparing and the processing of analog signals in order to control machines and process. 

l Advanced PLC:

        The modern advanced PLC’s can handle various types of analog signals. It can handle Thermocouple (TC), Resistance Temperature Detector (RTD), Pulse, High speed count signal, Voltage, Current, etc.

         So the modern PLC can provide a complete solution for operating and process plant.

l General specification of PLC:

  1. Input output specification

  2. Control specification

  3. Peripheral function

  4. Maintenance function

l SCADA system:

It means Supervisory Control and Data Acquisition. SCADA is graphical software for Human Machine Interface (HMI).