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In control valve proximity inductive sensor is taken as digital feedback for full open and full close.Normally its volts 24v when the sensor acts the feed back voltage 14v so that our relay not indicating in plc panel . kindly give the solution.
1911(1) In turbine, what does term CDP, NI, NH, HSSOC, means. (2) What is the purpose of LO overhead tank in turbines.(3) An equipment is certified for EEX, IA, IIC,T6, what do you under stand by this.(4) what is SURGE, and how it is prevented, what is the purpose of bypass valve across AS valve.(5) Give 2 application of quartz crystal used for process parameter measurement.(6) what is meant by cold float of compressor shaft. (7) state four different types of flow measurement. For gas flow measurement mmscfd is the common unit. Expand the unit and specify significance of word S in the unit.(8) what is meant by Gap voltage, in vibration measurement. Normally how much Gap voltage is set and state the reason.(9) what will the new flow factor if D/P transmitter is Re-Ranged from 25” wc to 50” wc.(10) what is the usage of QDV & Volume booster.
3998Post New Instrumentation Questions
PT RTD Range: -200 to 500 degree celsius If I configured in DCS Lower range and Upper range . In face plate it shows red colour due to overa range how was the characteristics look If the temperature is more than operating range. how was the characteristics look . whether its in Resistance vs Temperature curve is Linear or Non linear
how u calibrate sox nox co2 co in cemps?what is opacity n HPm?tell the standard parameters of cems?
my data card only does run in my mobile so how can change it that it run other mobile & computer and i can stor data in my data card
Meaning of the following a. IOP- Manimum; b. IOP- Maximu,;
What is three element drum level control system why its better than single element?
Name different types of bourdon tubes.
Describe the typical instrumentation used in monitoring the performance of a shell and tube heat exchanger.
what is the reason while warning lamp is on while the engine is cranking?
flow transmeter accuracy 0.075% of full scale & find ucertainty is 0.025 % so what is maximum limit band of uncertainty
What is ultrasonic flowmeter?
In which principles tx ,pressure gauge,Temp gauge,control valve works?
Explain pH, Conductivity.
Programmable Logic control.
What types of Instrumentation Related Questions can an Interviewer ask in a Telephonic Interview ?
Which language of programing is popular? how can i learn it ?
