Pressure Transmitter Re-Range Questions
If a smart (digital) pressure transmitter configured with re-range then does it need to be re-trimmed as well?
Practical Questions
In Practical Instrumentation Questions section, you will get industry related technical questions with problem solving approach,
Identify the Pressure Gauge Error
An operator claims pressure gauge is defective and needs to be replaced. The pressure controller and gauge readings are different.
Steam Eductor Question
A steam eductor is a device used to create a vacuum, by passing steam through a “venturi” tube.
Identify Problem with Oily Water Filter Instrumentation
An operator reports a problem with the oily water filter instrumentation in this process. The PDIR and PG indicate different readings.
PLC Programming Question & Answer
Question & Answer – A PLC has been programming to control the starting and stopping of a three-phase electric motor.
Example PLC Program
A PLC has been programming to control the starting and stopping of a three-phase electric motor.
Baffle Nozzle Assembly Sensitive Mechanism
The baffle nozzle assembly mechanism is certainly not equally sensitive throughout all portions of its operating range.
Air Pressure Regulator Questions
Air Pressure Regulator regulates the fluctuating air pressure from the receiver vessel down to a lower, more constant level.
Determine the Instrument Calibration Error
Determine what kind of calibration error the instrument has (zero shift, span shift, hysteresis, and/or linearity).
Calculate the Transmitter Values
A pneumatic differential pressure transmitter has a calibrated range of −100 to +100 inches of water column and its output signal range is 3 to 15 PSI.