Ultramarine & Pigments Senior Instrument Engineer Interview Questions, Process, and Tips

New IOs can be added in existing PLC/DCS system by following these steps:

• Identify the type and number of IOs required

• Check the compatibility of the new IOs with the existing system

• Configure the IOs in the PLC/DCS software

• Install the new IO modules and connect them to the system

• Test the new IOs to ensure proper functioning

A pressure transmitter hook up diagram shows how to connect the transmitter to the process piping and control system.

• The transmitter should be installed at the point where pressure is to be measured.

• The process piping should be connected to the high and low pressure ports of the transmitter.

• The transmitter should be connected to the control system using appropriate wiring.

• Proper grounding and shielding techniques shoul...read more

Field instruments are selected based on process requirements, accuracy, reliability, and cost.

• Understand the process requirements and select instruments accordingly

• Consider accuracy and reliability of the instruments

• Evaluate the cost of the instruments and select the most cost-effective option

• Ensure compatibility with the control system

• Consider environmental factors such as temperature and pressure

• Examples of field ins...read more

Coriolis mass flowmeter measures mass flow rate by detecting the Coriolis force. Electromagnetic flowmeter measures volumetric flow rate by using Faraday's law of electromagnetic induction.

• Coriolis mass flowmeter measures the mass flow rate directly

• It works on the principle of Coriolis force

• The fluid is forced to oscillate by a vibrating tube and the Coriolis force is measured

• Electromagnetic flowmeter measures the volu...read more