Introduction Current to pressure converter (I/P) converts an analog signal (4 to 20 mA) to a proportional pneumatic output (3 to 15 psi).It is one of the main pneumatic instruments used in industries. The most common application of I/P converter is to receive an electrical signal from a controller and provide proportional pneumatic output to control a …
Introduction Flow is an important physical quantity that needs to be controlled,monitored. There are so many flow measuring devices. lets discuss about Turbine flow meter. Working principle Turbine flow meter is used for translates the mechanical action of the turbine rotating in the liquid flow around an axis into a user readable rate of flow. …
Introduction pressure is an important physical quantity.In industries it should be maintained ,controlled,monitored at specific readings so that’s why pressure transmitters are so important in industries . so calibration of pressure transmitter is what we are going to discuss now. Equipments required for calibration of pressure transmitter Pressure transmitter, multimeter, HART communicator Basic procedure for …
Introduction For proper working of control valves there are some tests .they are commonly called as control valve pressure test.There are 3 types of Control valve pressure tests Body test For body test blind the output of control valve using blind flange Valve should be fully opened position either control valve is NO or NC. …
What is control loop? A Control loop is the fundamental building block of the industrial control system or industrial automation. It is a group of components working together as a system to achieve and maintain the desired value of a system variable by manipulating the value of another variable in the control loop. An instrumentation …
Capacitance type Level Transmitter principle There are different kinds of level measuring techniques .one of the simplest method is capacitance type method. A capacitor is formed when a level sensing electrode is installed in a vessel. The metal rod of the electrode acts as one plate of the capacitor and the tank wall acts as the …
Calibration of capacitance type level transmitter Read More »
Introduction A thermocouple is a sensor used to convert temperature into an electric signal. It consists of 2 dissimilar metals joined together to form junctions. In this session we are going to discuss about Thermocouple transmitter calibration Working principle  Seebeck effect: the emf produced in the thermocouple is proportional to the temperature difference between 2 junctions …
Introduction Leveltroll is a combination of torque chamber, torque arm, torque tube, displacer and with this mechanism we can measure the level.A Leveltroll in and instrument used for measuring the liquid level between two known points. The Leveltroll works on the buoyancy principal. Leveltroll has a float, which submerses proportionately with liquid level raise in …
Displacer type level transmitter calibration / Leveltroll Calibration Read More »
RTD transmitter Calibrating In industries temperature is a major physical quantity that has to be monitored and controlled.In this session we are discussing about calibration of RTD transmitter. Both RTDs and thermocouples are used for process temperature measurements. Equipments needed Transmitter 24VDC supply Decade box(resistance) Multimeter Theory RTD has no polarity There are different kinds …
Introduction Pressure gauge calibration is one of the simplest calibration procedures.Pressure gauges are pressure indicating instruments. Normally pressure gauges consist of bourdon tubes as pressure sensing elements. There are different types of pressure gauges based on different manufactures so the calibration methods will          also change let’s …