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PIDA (Proportional-Integral-Derivative with Anti-windup) The PIDA block in the diagram represents a control function that adjusts the cooling signal to maintain the desired temperature. It is a part of a feedback control loop. Inputs: 1. MV (Measured Value): This is the measured supply temperature (from the "RA Temp" input). It represents the current temperature the system is trying to control. 2. SP (Setpoint):- This is the desired supply temperature (from the "TempSetpt" input). The PIDA block calculates the error as SP - MV. 3. Mod (Mode):- Represents a configuration or scaling factor for the controller. For example, 10 may indicate a proportional scaling factor. 4. G (Gain):- Proportional gain (P). This determines how aggressively the controller reacts to the error. 5. Ti (Integral Time):- Determines how the controller integrates past errors over time to reduce steady-state error. A value of 0 typically disables the integral action. 6. Td (Derivative Time):- Represents how the controller reacts to the rate of change of the error. It adds stability by predicting future errors. A value of 100 indicates derivative tuning. 7. DZ (Dead Zone):- A range around the setpoint where no action is taken to avoid unnecessary control oscillations. Here, it seems to be 0, meaning the controller reacts to any error. 8. Tsg (Stroke Time):- This parameter affects how the output signal is adjusted over time, likely for actuators or valves. A value of 0 implies no delay or stroke effect. Output:- Cooling Control Signal, % (Real): The calculated output signal from the PIDA controller is sent to an analog output block (HFAO), which drives the cooling equipment (e.g., valves, dampers, or compressors). Functionality of the PIDA Block: 1. Error Calculation: Error = SP (desired temperature) - MV (current temperature). 2. Control Actions: The P component responds to the magnitude of the error. The I component adjusts based on cumulative error over time. The D component reacts to the rate of change of the error. 3. Output Signal: The output signal is adjusted in percentage terms and sent to the cooling actuator via the HFAO block. Other Supporting Parameters: Cooling Proportional Action (Kp): This appears to have a scaling factor of 5 based on the "Cooling Pba..." block. Cooling Time (Ti): Set to 2 seconds, which affects the integral action. These settings work together to ensure the system achieves and maintains the set temperature efficiently.

Understanding Level Measurement: FMCW RADAR vs. GWR Level Transmitters Level measurement is a critical aspect of various industrial processes. Among the technologies used for this purpose, Frequency Modulated Continuous Wave (FMCW) RADAR and Guided Wave Radar (GWR) level transmitters are prominent. Let's delve into the differences between these two types of transmitters and explore their pros and cons. FMCW RADAR Level Transmitters FMCW RADAR operates by emitting a high-frequency signal whose frequency increases linearly during the measurement phase. This signal is reflected off the product surface and received with a time delay. The difference in frequency between the transmitted and received signals is directly proportional to the distance, which is then used to calculate the level. Advantages: - High Sensitivity: FMCW RADAR can measure very small ranges to the target with high accuracy. - Simultaneous Measurement: It can measure both the target range and its relative velocity. - Low Power Consumption: Uses low power for transmission, which can be supplied by solid-state devices. Disadvantages: - Short Range: More suitable for targets at short ranges due to lower peak output power. - Signal Attenuation: The signal can get attenuated and affected by the atmosphere before it is received by the receiver. - Cost: Generally more expensive compared to pulsed radar systems. GWR Level Transmitters GWR uses Time Domain Reflectometry (TDR) principle, where low power nanosecond-pulses are guided along a probe submerged in the process media. The time difference between the generated and reflected pulse is used to calculate the level. Advantages: - Accurate Measurements: Provides high accuracy level measurements, even in challenging conditions. - Versatility: Can be used for a wide range of applications, including liquids with varying dielectric constants. - Independent of Density: Direct level measurement that is not affected by density changes. Disadvantages: - Installation Complexity: Requires careful installation and proper calibration. - Contacting: The probe is in contact with the medium, which can lead to issues with corrosive or sticky substances. - Maintenance: May require periodic cleaning and maintenance due to buildup. Conclusion Both FMCW RADAR and GWR level transmitters have their unique advantages and are suited for different applications. The choice between them depends on the specific requirements of the process, such as the range, the type of medium being measured, and environmental factors. Understanding these differences can help in selecting the right technology for accurate and reliable level measurement.

How to measure the current sensor (current sensor test method) 5. In-depth analysis of accuracy and resolution: Based on the linearity test results, the response ability of the sensor to small current changes is further measured. This step is a detailed analysis of the sensor's performance to ensure its accuracy in practical applications. 6, temperature impact and environmental adaptability test: After determining the accuracy and resolution of the sensor, its performance at different temperatures is tested. This step is to evaluate the adaptability and stability of the sensor under different environmental conditions. 7. Long-term stability and reliability evaluation: Based on the temperature test, the sensor is run for a long time to monitor the stability of its output. This step is to evaluate the long-term operation capability of the sensor to ensure its reliability in practical applications. 8, professional equipment assisted comprehensive performance test: Finally, a comprehensive performance test is performed using professional equipment such as current calibrators, oscilloscopes and multi-purpose meters. This step is the final validation of the overall performance of the sensor, ensuring that it meets the high performance requirements under a variety of conditions. The correct test method is essential to ensure the performance of the current sensor. Through the above test methods and guidelines, users and engineers can quickly and accurately evaluate the performance of current sensors to ensure the safety and efficiency of electrical systems. CHIPSENSE is a national high-tech enterprise that focuses on the research and development, production, and application of high-end current and voltage sensors, as well as forward research on sensor chips and cutting-edge sensor technologies. CHIPSENSE is committed to providing customers with independently developed sensors, as well as diversified customized products and solutions. "CHIPSENSE makes magnetic world charming!”

How to measure the current sensor (current sensor test method) 5. In-depth analysis of accuracy and resolution: Based on the linearity test results, the response ability of the sensor to small current changes is further measured. This step is a detailed analysis of the sensor's performance to ensure its accuracy in practical applications. 6, temperature impact and environmental adaptability test: After determining the accuracy and resolution of the sensor, its performance at different temperatures is tested. This step is to evaluate the adaptability and stability of the sensor under different environmental conditions. 7. Long-term stability and reliability evaluation: Based on the temperature test, the sensor is run for a long time to monitor the stability of its output. This step is to evaluate the long-term operation capability of the sensor to ensure its reliability in practical applications. 8, professional equipment assisted comprehensive performance test: Finally, a comprehensive performance test is performed using professional equipment such as current calibrators, oscilloscopes and multi-purpose meters. This step is the final validation of the overall performance of the sensor, ensuring that it meets the high performance requirements under a variety of conditions. The correct test method is essential to ensure the performance of the current sensor. Through the above test methods and guidelines, users and engineers can quickly and accurately evaluate the performance of current sensors to ensure the safety and efficiency of electrical systems. CHIPSENSE is a national high-tech enterprise that focuses on the research and development, production, and application of high-end current and voltage sensors, as well as forward research on sensor chips and cutting-edge sensor technologies. CHIPSENSE is committed to providing customers with independently developed sensors, as well as diversified customized products and solutions. "CHIPSENSE makes magnetic world charming!”

🎙ProseraPod: Ask Greg McMillan - What role do you see dynamic simulation playing in the future of best temperature measurement selection? 🎙Greg's Response: Temperature is often the most important of the common measurements because it is an indicator of process stream composition and product quality. Temperature measurements are also essential for equipment protection and performance monitoring. In the process industry 99% or more of the temperature loops use thermocouples (TCs) or resistance temperature detectors (RTD). The RTD provides sensitivity (minimum detectable change in temperature), repeatability, and drift that are an order of magnitude better than the thermocouple (Table 1). Sensitivity and repeatability are 2 of the 3 most important components of accuracy. The other most important component, resolution, is set by the transmitter. Drift is important for controlling at the proper setpoint and extending the time between calibrations. Operators often adjust setpoints to account for the unknown drift. When the TC is calibrated or replaced, the modified set point no longer works. The RTD is also more linear and much less susceptible to electro-magnetic interference. The supposed issue of a slightly slower sensor response will be addressed in the next post on how to get the best installation. Thermistors have seen only limited use in the process industry despite their extreme sensitivity and fast (millisecond) response, primarily because of their lack of chemical and electrical stability. Thermistors are also highly nonlinear but this may be addressed by smart instrumentation. Optical pyrometers are used when contact with the process is not possible or extreme process conditions cause chemical attack, physical damage, or an excessive decalibration, dynamic, velocity, or radiation error of a TC or RTD. Simulations that include sensitivity, repeatability, drift, and EMF noise can show the advantage offered by the RTD. For much more knowledge, see the ISA book Advanced Temperature Measurement and Control Second Edition (use promo code ISAGM10 for a 10% discount on Greg’s International Society of Automation (ISA) books). 📖 https://lnkd.in/gx8mAaVB Learn more on the ProseraPod - https://lnkd.in/ej2K3U8r #Prosera #ProseraPod #InnovateAtProsera #ProcessControl #DynamicSimulation #AskGregMcMillan #DigitalTwins

🔄 This week on the ProseraPod - Greg McMillan shares how simulation is transforming operator training and process understanding by providing insights into WHY certain phenomena occur, rather than just showing WHAT happens. This approach helps operators build a more comprehensive mental model of the process, allowing them to: 1️⃣ Develop a deeper understanding of process dynamics – By seeing the impact of factors like sensitivity, repeatability, drift, and interference, operators gain clearer insights into the underlying causes of process changes. 2️⃣ Enhance critical decision-making skills – Dynamic simulation empowers operators to anticipate and respond to process deviations more effectively, bridging the gap between theory and practice. 3️⃣ Strengthen process reliability and safety – With a robust mental model, operators are better equipped to maintain optimal conditions, reducing the risk of unplanned downtime or safety incidents. Follow the ProseraPod series for more insights on how innovations in process control are shaping the future! 👉 https://lnkd.in/gBhzqWqv

Which temperature sensor measures the most accurate temperature reading? The accuracy of temperature measurement depends on various factors, including the type of temperature sensor used, the calibration process, environmental conditions, and the application requirements. Different temperature sensors have their own advantages and limitations in terms of accuracy, precision, response time, and cost. However, some commonly used temperature sensors known for providing accurate temperature readings include: 1. Resistance Temperature Detectors (RTDs): RTDs are based on the principle of electrical resistance change with temperature. They typically use platinum, nickel, or copper as the sensing element. Platinum RTDs (PT100, PT1000) are known for their high accuracy, stability, and linearity over a wide temperature range. RTDs offer high precision and are often used in industrial and scientific applications where accuracy is critical. 2. Thermocouples: Thermocouples consist of two different metal wires joined at one end, generating a voltage proportional to the temperature difference between the junction and the reference junction. While thermocouples are widely used due to their ruggedness, fast response time, and wide temperature range, their accuracy can vary depending on the type of metals used, calibration, and environmental conditions. Certain thermocouple types, such as Type S, Type R, and Type B, offer higher accuracy compared to others. 3. Thermistors: Thermistors are semiconductor devices whose resistance changes significantly with temperature. They offer high sensitivity and accuracy, especially over a narrow temperature range. Precision thermistors (such as NTC thermistors) can provide accurate temperature readings with high resolution, making them suitable for applications requiring precise temperature control, such as medical devices and laboratory equipment. 4. Platinum Resistance Thermometers (PRTs): PRTs are similar to RTDs but use platinum as the sensing element. They offer excellent accuracy, stability, and repeatability, particularly at cryogenic temperatures and in metrology applications. PRTs are often used as reference standards for calibration due to their high precision and linearity. Ultimately, the choice of temperature sensor depends on factors such as the required accuracy, temperature range, environmental conditions, cost considerations, and application-specific requirements. Calibration, proper installation, and regular maintenance are essential for ensuring accurate temperature measurements regardless of the sensor type used.

Squeeze more from your available data!!! New article proposes a soft sensor methodology for Intelligent Fault Detection for centrifugal pumps that only considers information available in PROFINET networks. #profinet #Intelligentfaultdetection #machinelearning #pipingsystems The full article is available at: https://lnkd.in/ddETuB2d

Danisense offers high-accuracy current sense transducers for demanding applications, designed to streamline workflow for engineers using data acquisition (DAQ) systems. These devices integrate the burden resistor directly into the current transducer, mitigating the risk of miscalculations. With a single datasheet, users can promptly commence precise and reliable current measurements in their specific applications. For data acquisition users usually employ a variety of instruments, extending beyond traditional oscilloscopes. These instruments often lack a direct current sensor. Consequently, when users require a precision current sensor, they must also use a burden resistor to facilitate the connection. However, this often poses a significant challenge: users need to align the specifications of the current sensor with those of the burden resistor. The complexity of these specifications leaves considerable room for error. The DS, DM and DL series current transducers with voltage output

Danisense offers high-accuracy current sense transducers for demanding applications, designed to streamline workflow for engineers using data acquisition (DAQ) systems. These devices integrate the burden resistor directly into the current transducer, mitigating the risk of miscalculations. With a single datasheet, users can promptly commence precise and reliable current measurements in their specific applications. For data acquisition users usually employ a variety of instruments, extending beyond traditional oscilloscopes. These instruments often lack a direct current sensor. Consequently, when users require a precision current sensor, they must also use a burden resistor to facilitate the connection. However, this often poses a significant challenge: users need to align the specifications of the current sensor with those of the burden resistor. The complexity of these specifications leaves considerable room for error. The DS, DM and DL series current transducers with voltage output