Piping & Instrumentation Diagram

•Process flow diagrams (PFDs) are used in chemical and process engineering. These diagrams show the flow of chemicals and the equipment involved in the process. Generally, a Process Flow Diagram shows only the major equipment and doesn't show details. PFDs are used for visitor information and new employee training.

•A Process and Instrument Drawing (P&ID) includes more details than a PFD. It includes major and minor flows, control loops and instrumentation. P&ID is sometimes referred to as a Piping and Instrumentation Drawing. These diagrams are also called flowsheets. P&IDs are used by process technicians and instrument and electrical, mechanical, safety, and engineering personnel.

•Piping and instrumentation diagram (P&ID): A diagram which shows the interconnection of process equipment and the instrumentation used to control the process.

•In both diagrams arrows show the flow of material and symbols show tanks, valves, and other equipment. The symbols used vary somewhat from organization to organization. So you may see several different symbols that all represent a motor.

P&ID symbols is  provided below:

TK3 Calibration Instrument

The TK3 Calibration instrument simulates shaft vibration and position for calibrating Bently Nevada monitors. It verifies the operating condition of the monitor readouts as well as the condition of the proximity transducer system. A properly calibrated system means that the monitor readings and transducer inputs are accurate. A spindle micrometer is used to check the transducer system and position monitor calibration. A probe mounting adapter provided with the TK3 holds the probe while the targt is moved toward or away from the probe tip in calibrated increments. The output from the proximitor sensor is recorded using a voltmeter.
Vibration monitors are calibrated using the motor-driven wobble plate to hold the proximity probe in place. The holder is located over the wobble plate to hold the proximity probe in place. The holder and probe are adjusted to a position where the desired amount of mechanical vibration is found. The vibration is then measured using a dial micrometer that is supplied with the unit (no oscilloscope is needed).
A vibration monitor's reading can then be compared to the known mechanical vibration signal input. The mechanical vibration signal from the TK3 can range from 50 to 254 micro meter (2 to 10 mils) peak-to-peak.

For details: http://www.ge-mcs.com/download/sensors-and-transducers/141580.pdf