Instrumentation and Control: Measurement of Pressure and Temperature

State the general function of process instrumentation. List four process variables monitored by process instrumentation. Explain how parallax can affect an instrument reading. Explain how to use a multiplication factor when reading an instrument. Describe how to read gauges indicators recorders and digital meters. Define pressure in terms of solids liquids and gases. Describe three types of scales used to indicate pressure. List basic units of measurement for pressure. Describe three types of manometers. Describe the basic operation of Bourdon tube bellows and diaphragm pressure elements. Describe the basic operation of a pressure transmitter. Explain the general relationship between heat and temperature. List basic units of measurement for temperature. Describe the basic operation of a fluid thermometer bimetallic thermometer thermocouple and Resistance Temperature Detector (RTD).