What is the benefit of process Automation/Instrumentation?

Process Automation is now often applied primarily to increase quality in the manufacturing process, where automation can increase quality substantially. The main focus of INDUS AUTOMATION & ENGINEERING SERVICES (Process Automation) business is to provide customers with products and solutions for instrumentation, automation and optimization of industrial processes. The industries served include oil and gas, fertilizers, chemicals, pharmaceuticals, power, textile, pulp & paper, metals & minerals and marine. Key customer benefits include reliable & efficient productivity.

What is the difference between a single-stage gas pressure regulator and a two-stage gas pressure regulator?

Single-stage gas pressure regulators reduce the cylinder pressure to the delivery pressure in one step, where a two-stage gas pressure regulator accomplishes the same thing with two stages of pressure reduction. This means that a single-stage regulator has to be adjusted to maintain a constant pressure as the gas in the cylinder is used, but a two-stage regulator does not. Two-stage regulators are typically used when more stability of operation is required and are often used in specialty gas applications, like gas chromatography.


On the other hand, if gas is being used for a short duration instrument calibration, a single-stage gas regulator with a wide accuracy envelope (supply pressure effect) but a comparatively flat droop should be chosen. This will eliminate the need to allow the gas to flow at a constant rate before the calibration can be done.

Please describe PLC (Programmable Logic Control) Advantages?

One single Programmable Logic Controller can easily run many machines.


Correcting Errors:
In old days, with wired relay-type panels, any program alterations required time for rewiring of panels and devices. With PLC control any change in circuit design or sequence is as simple as retyping the logic. Correcting errors in PLC is extremely short and cost effective.


Space Efficient:
Today’s Programmable Logic Control memory is getting bigger and bigger this means that we can generate more and more contacts, coils, timers, sequencers, counters and so on. We can have thousands of contact timers and counters in a single PLC. Imagine what it would be like to have so many things in one panel.


Low Cost:
Prices of Programmable Logic Controllers vary from few hundreds to few thousands. This is nothing compared to the prices of the contact and coils and timers that you would pay to match the same things. Add to that the installation cost, the shipping cost and so on.


A Programmable Logic Control program can be tested and evaluated in a lab. The program can be tested, validated and corrected saving very valuable time.


Visual observation:
When running a PLC program a visual operation can be seen on the screen. Hence troubleshooting a circuit is really quick, easy and simple.