Quality assurance is a term covering all matters relating to the quality of a product or service, separately or collectively. ISO 9000 describes quality control as part of quality management that is geared towards quality requirements. Difference between QA and QC: QA is a collection of operations in the procedures through which products are created to …
What is output tracking? In a controller manual and automatic operating modes creates a set of potential problems for the PID controller. A human operator switches the PID controller from automatic to manual mode and then manually adjusts the output to a fresh value. The result would be an immediate “jump” back to the output …
What is cooling tower? A cooling tower is an essential equipment in any industry which is used to remove heat while minimizing water usage. Where water is most efficient way to dissipating unwanted heat. Commercial buildings and industries use water to cool their HVAC and process machinery. Where do we need cooling tower? Cooling tower …
A mimic panel shall be provided integral to the Fire & Alarm Control Panel (FACP) for continuous monitoring of the Fire & Alarm System (FAS). The mimic shall contain a simplified layout of the buildings, which are to be monitored. The indications on the mimic panel shall be driven through hard wired signals from the …
Reliability Centered Maintenance (RCM) is a process used to determine what must be done to ensure that a physical asset can continue to fulfil the expected function in the context of its current operation. RCM is the maintenance approach that combines the practices and strategies of preventive maintenance (pm) and corrective maintenance (cm) to maximize …
All instrument piping system or tubing runs should be routed to meet the following requirements: They should be kept as short as possible. They should not cause any obstruction that would prohibit personnel or traffic access. They should not interfere with other equipment items ‘ accessibility for maintenance. They should avoid potential fire risk areas …
One of the very largest problems facing the automation professional is the security of the Industrial control systems in plants and the SCADA systems that tie together decentralized facilities such as power, oil, and gas pipelines and water distribution and wastewater collection systems. All those above-mentioned examples are designed to be open, robust, and easily …
There are several techniques used for the process control system that are useful in the analysis and design of the modern process control system. The feedback control system is a type used in this type of control system. Feedback control system: In the feedback, the output of the control system is measured and compared to …
What is a deaerator? And deaerators are used for: The deaerators are normally used in any chemical process industry or in power plants where the boiler is used for the production of steam from the boiler feed water. The heating deaeration process is the separation process done by using mechanical equipment that has been designed …
Deaerator- What are deaerators?, working, construction. Read More »
Why use Cascade control loop? In the process industry, many process requirements cannot be solved by simple loops, which rely solely on feedback control or feedforward control. Several types of processes that have very large time constants. Although the derivative unit has been installed in the controller, due to the slow process, the process reaction …
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