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Introduction In this session we are gonna discuss about Difference between AS-I and DeviceNet .before reading this just go through An overview of industrial communication network so you will get a brief idea about other communication protocols AS-i Actuator Sensor-interface is an open system network developed…
Introduction Aspirating smoke detection ensures reliable fire detection in demanding application areas, where very early fire detection is required and business continuity is paramount. Aspirating smoke detectors continually draw samples of air from the areas requiring protection and evaluate these samples for…
Introduction Mass spectrometry is a powerful analytical technique used to quantify known materials, identify unknown compounds within a sample and to elucidate the structure and chemical properties of different molecules. The complete process involves the conversion of the sample into gaseous ions,…
Introduction Laser Smoke Detector senses the earliest particles of combustion. And that provides early warning of fire. Its high sensitivity is balanced with high stability to minimise false alarms. Like an ionization detector,Laser technology gives you fast response detection in high sensitivity…
Introduction Network topologies connect individual devices. Such connections allow the devices to share and exchange information. The most frequently used in the process industries are the star, the bus, and the ring network systems.But we need a transmission media for that lets…
Introduction In this session we are gonna discuss about some protective devices and accessories ie used in transformers 1.Double-float Buchholz relay For sudden pressure rise and gas detection in oil-immersed transformer tanks with conservator. Installed in the connecting pipe between tank and…
What are the dryers? Compressed air dryers remove moisture that might otherwise condense in airlines, air tools, and pneumatic instruments. This condensate can cause damage to equipment from corrosion, freezing, and water hammer, and can cause malfunctioning of instruments and controls. Three…
What is a Stepper Motor? Stepper motors are DC motors that move in discrete steps. They have multiple coils that are organised in groups called “phases”. By energizing each phase in sequence, the motor will rotate, one step at a time. With…
Introduction Commercial and industrial distribution systems use various methods to conduct electric power. These methods often include heavy conductors that work in trays or ducts. The cable and conduit assemblies are expensive and their installation requires a lot of time. Once installed,…
The HVAC system discussed here is a variable-air-volume (VAV) system with an economizer. The economizer allows outdoor air to be used for cooling when conditions permit. The system shown below is a normal HVAC operating mode. This mode includes the return gate, the exhaust…