Answer / rajesh

the distance between Lp and Hp taps. and position of transmitter above or below from its Lp tap level.

Answer / devang vaghela

Check Tank details where tank height and its safe filling height provided.
And accordingly select your transmitter which suits your tank height.

Answer / rawjaw

Simply, tank height, tank dia, tank fluid to be considered

Answer / anu

closed tank -ve to +ve transmitter 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.

0 Answers   MNC,

---

What is the difference b/w EMF, voltage & potential difference?

1 Answers  

---

What is the working principle of Bentley Nevada 3300

1 Answers   SMIT,

---

What is the purpose of LO Overhead tank in turbines.

0 Answers   ADMA OPCO,

---

the output of the common trasmitter protocol in qatar gas are the following

0 Answers  

---

Can any body give detail about orifice sizing?

5 Answers   Essar,

---

Dear all, I'm manikandan I have done by DIPLOMA EEE from 2011 , I have 5 years of experience from Power plants instrumentation field , which one field is give long life & which one field is best ,I confused a lot And also I'm studying AMIE, can I choose which field from Section B examination?

1 Answers  

---

How to calibrate radar type level transmitter for interface level? Total liquid(liq.1 and liq.2), level both the liq individually? For. Both the liquid levels how the signal will go from transmitter to dcs? How to calibrate. Single radar 9:26:55 AM for 2 different liquids in a tank?

0 Answers   Almeer Technical Services,

---

Why even multiple power supplu r used in instrumentation system?

1 Answers   Honeywell,

---

why micro controller 8051/52's clock frequency is internally divide by 12 ?? and why it is further divide by 32 in UART serial communication ??

1 Answers  

---

What is the purpose of RS Networks

2 Answers  

---

what is difference between 3 wire and 4 wire RTD sensor?

12 Answers   HTA Instrumentation,

---