Why Boiler Drum level transmitter (TX) or level transmitter
rang always put -600 to 0 other -900 to 0. Mines range why
useā¦.?
Answer Posted / radha
this is called wet leg system,so you are telling range -600
to 0 means your drum distance between HP & LP 600 mm and HP
and LP legs both are filled with condensate(water)
continueosly but LP leg distance higher than the HP leg,so
LP side pressure will acting 600mmWC extra, compare with HP
leg pressure,so we have to eliminate that pressure LP
pressure 600mmWC
thats why -600mmWC = 4mA
0 mmWC = 20mA
| Is This Answer Correct ? | 23 Yes | 7 No |
Post New Answer View All Answers
How you calibrate absolute pressure with the calibration range of 0 to 1000 0C Absolute. Please explain the procedure for calibration.
use of split range ? where it is used ? in which control loop it is used ?
POSSITIVE PULSE IS APPLIED TO AN INVERTER INPUT.THE TIME FROM THE LEADING EDGE OF THE INPUT TO THE LEADING EDGE OF THE OUTPUT IS 10 ns. THE TIME FROM THE TRAILING EDGE OF THE INPUT TO THE TRYLING EDGE OF THE OUTPUT IS 8 ns. WHAT ARE THE VALUES OF tPLH and tPHL?
How to calibrate capillary type level transmitter
How the sizing of the analog signal cable is calculate?
Isometric drawings are generated during _________________ phase of a project
Working principle of magnetic flow meter ......and calibration procedure of e+h magnetic flowmeter...
Which types of quections asked in interview for FORMULATION PLANT (PHARMA)
How to calibrate Field bus transmitter? procedure ?
What are different types of cable?
For crude application in floating roof tank, how to calibrate a DP Transmitter? How is the floating roof weight considered?
Sir, I am working as a Instrument Engineer in Grasim Industries. Can any body provide question answer for interview purpose
How hart protocol can be connected with control valves?
What inherent design and operating principles are included in a modern control system to use predictive maintenance practices to increase overall system reliability?
what is controlling card in dcs? how u measure dcs memory?what is bus in dcs?how u know dcs speed n ehternet speed?