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what is controlling card in dcs? how u measure dcs memory?what is bus in dcs?how u know dcs speed n ehternet speed?
2039how u calibrate sox nox co2 co in cemps?what is opacity n HPm?tell the standard parameters of cems?
3673I was working on calibrating turbidity transmitters endress+hauser at effluent polishing plant.We calibrated using NTU buffers.What happened is that when we immersed the sensor, everytime we raise and lower the sensor gradually, the reading will vary.my question is that is there any specifications on what is the required distance from the bottom of the container with buffer to the face of the sensor?Is it ok to install the sensor in a medium which has turbulence specially if bubbles are present?
2214Why DP transmitters are subjected to high static pressure test of 100 bar. Though they will be used for very small pressure range
HPCL,
4 9885How to measure density of oil in your kitchen. i.e indirectly to verify the quality of oil using min. gadgets available in the kitchen/house.
HPCL,
1 4359Post New Instrumentation Questions
what is the responsibility of an instrument commissioning supervisor
why is not useing in boiler skin thermocople
What is zero elevation and zero suppression?
what is a vortex flow meter,mass flow meter and electromagnetic flow meter.particular use of this.means in which condition particular meter is used.
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.
Differentiate between ultrasonic flowmeter and radar type flow meter
how to calculate control valve bonnet size?? or how to select its material?
Type of level transmitter commnly used in Procees area are the following. a.________________This type of level transmitter works as follows
Exothermic reaction./ endothermic reaction
How can test or measure the probe and extension cable to identify if the problem at the probe or cable or at the driver it self? (pleast notify the measuring method)
what happen if i increase height of displacer type LT.accuracy or sensitivity are affected.why?
hye SAM acn u send your e mail id, so that i can solve my query through e mail?
steps for installing orifice plate?
what is droop in governer ,type of droop ,how it work
What is the start up procedure of desalter
