Industrial Instrumentation - Science topic

This concept (the Internet of Things - IoT) has become increasingly popular. It is expected to offer promising solutions to transform the operation of existing industrial systems such as manufacturing and transportation. However, no studies/papers seem to be available on how advantageous (or disadvantageous) has been the implementation of IoT in industry. Could you provide me with some real evidence/specific cases on this issue?

What are important things to learn about instruments and controls in industries sector? Especially in gas power plant industries.

I have recently learned the concept of override control in the p&id diagram. I have also learned some typical examples but whenever i come across a new complicated override control I find it difficult to interpret and identify the two selected and de selected controlls.

Would you recommend any process/portable instrument which can be coupled with fibre-optic probes? Would it better to go for longer wavelength excitation laser such as 1064 nm coupled with InGaAs detector or CCD with narrower wavenumber range? Are there some other critical issues to keep in mind?

I want to ask some questions relating to Cleaning Validation in pharmaceutical industy:

 

1) For microbial contamination, does this criterion depend on API or not? If not, suppose that the worst-case product is X and at the moment we do not manufacture it, can I take microbial samples for dirty hold time and clean hold time?

 

2) Suppose that we have produced X01, X02, X03,..., X10 (with 01, 02, 03,...., 10 are the batch no.). Can I perform cleaning validation on nonconsecutive batches, for eg. X01, X03 and X07?

 

3) There are 3 types of cleaning validation: dirty hold time, cleaning procedure validation and clean hold time. Can I perform them separately or they must be performed together on a batch?

 

Thank you for your help.

 

Best regards,

Nguyen

In few recorders we not use transducers and in few of them we use. So, i want to know that what are the advantages or disadvantages.

Please comment related to details of sensors also which is used in a hybrid recorders.

I am testing a radar level measurement instrument but it is not working properly. I used water and fuel for testing but if actual fuel level is 0.2m, 0.4m, 0.6 m,0.8m then the radar level output is showing 1.6m constant.

So, please tell me what i need to do and How can i check the electronic part?

We have a DMLS machine at the company I am working for and every time we build bulky parts the machine will jam. We have tried new re-coater arms (switched from blades to carbon fiber brushes). Has anybody encountered these problems?

Hello. I need a new fume hood for the laboratory and I have two options to choose: Labtech LFH-150 or Biobase FH1500. Could you tell me any experience using any of them? Thank you.

I am trying a simple method to sense liquid level in an open tank using hydro-static principle. Though it resembles bubbler/purge method of level sensing, it avoids the need of external purging thus making it simpler. The setup consist of a hollow SS tube of particular diameter which is running till the bottom of tank. The top end of tube is attached to a U-tube manometer via a narrow pipe. Manometer show zero deflection until the liquid level in the tank touches the bottom tip of SS tube. But once the liquid level crossed the bottom tip, a particular volume of air is trapped between the liquid in the SS tube and the manometric fluid.The pressure of this trapped air increases proportionally with the rise in liquid level of tank, which shows a deflection in manometer. The Δh of manometer can be calibrated to liquid level H and the level can be measured. Now the issue is temperature compensation. The trapped air expands and contracts w.r.t ambient temperature. For a particular liquid level H, the deflection in manometer is constant provided a constant ambient temperature. If the temperature is increased the pressure also increased showing a positive deflection in Δh and vice verse. This variation Δh vs temperature is linear, but the slope is different for different liquid level H, so a direct compensation is not possible. With the change in temperature the volume, pressure and density of trapped air is changing. I am stuck up with this problem, how to compensate level w.r.t. change in temperature and I am not getting the right way to continue.