Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / seshu
The connecting wires long,resistance of wire changes as ambient temp fluccuates.to eleminate this problem we use 3 wire rtd
| Is This Answer Correct ? | 9 Yes | 10 No |
Post New Answer View All Answers
we want to control pump in let pressure and tank (for exp) our inlet line if water cam and pump will on and when our tank will full pump will off also if our inlet pressure low pump will off even tank not full.this pump i want to uses on our water supply line.
what is temperature compensation?
What are the error values can accepted in flow transmitter calibration?could u give any formula for this?
define feed forward control loop with example and drawing?
Name different parts of a pressure gauge. Explain the use of hair spring in the pressure gauge.
when the instrument tapping on pipe line is located below and transmitter is located above the tapping point for liquid service transmitter, what should we do, is there any additional drain valve is required??
Regarding , there is an air cooler which control the fans(50% of AV FANS) by temperature in outlet , and the louver of Air cooler is controlled by HIC from control system , So if on Air cooler we will consider 2 individual I/P converter or positioner?
What are the different types of thermistors used in industries? How to the operation of typical thermistor?
what do u mean by compensation n pid tunning?in pid tunning what you tunned?is it possible 2 tune p i d
How to convert mmWc(mili meter water colam) to tph(ton per hour)?
A PLC is programmed to drive three motors A, B and C as follows : After running motor A for an hour, motor B should get ON and motor A should get OFF. And after running motor B for an hour, motor C should get ON and motor B should get OFF. And after running motor C for an hour, motor A should get ON and motor C should get OFF. (That is, a cyclic repetition with time period one hour) Now, the second condition is: If any motor gone faulty and is tripped, the consecutive motor should get ON and the faulty (tripped) motor should be eliminated from cyclic repetition. The remaining two motors should bear the cyclic repetition of one hour each. (For healthy motor take logic as high and for tripped motor take logic as low) Now, the third condition is: When motor A load(Amps) exceeds 60% of its rated load, motor B should get ON in parallel to motor A. And when both motors A & B are running in parallel, and if their load exceeds 60% of their rated load, motor C should also start in parallel to A & B. [Here the cyclic repetition is eliminated, until their loads become normal(40%)] [Take logic high(1) for load at 60% and logic low(0) for load at 40%] Now draw a flow chart or a ladder diagram to fulfill the above condition.
typical loop drawing of a simple feedback control comprising of one transmitter and one control
all questions related to instrument technician in any offshore oil and gas company.
In power plant to measure vibration of a turbine we install sensors. Before install this sensor we have to set gap voltage. What is meant by gap voltage and its use?
What is the difference between ff transmitter and non ff transmitter
