how manys ways dp transmitter can be calibrated having
range of -150 to 400mmwc,what side pressure u will apply?
Answer Posted / basil
TWO WAYS.WE WANT TO GIVE 150 MMWC ON THE LOWER SIDE AND
ZERO PRESSURE ON HIGHER SIDE AND SHOULD GET THE OUT PUT OF
4 mA.AND ZERO PRESSURE ON THE SIDE OF LOWER AND 400 mmWC ON
THE HIGHER SIDE AND SHOULD GET THE OUT PUT OF 20mA.
IF NO PRESSURE ON BOTH SIDES THE OUTPUT SHOULD BE 8.36 mA
(IF IT IS A 4-20mA TRANSMITTER)
| Is This Answer Correct ? | 21 Yes | 2 No |
Post New Answer View All Answers
Draw a P& ID showing – orifice flange, plate, dp transmitter, isolation & bypass valves and tubing.
Define the terms Accuracy, precission, Spam, process tolerance while doing calibration of an instrument? Explaini with an example?
What is the reason PT speed not incresed in gas turbine?
pls suggest suitable MOC of diaphragm for pressure measurement of UREA grade solution service fluid.
What is instrumentation control?
if my flow is 20000 m3/h than which range of DPT i have to use????
in which principle pressure tx,level tx ,flow tx,temp tx ,control valve works?
What is the main difference between Cavitation and Flashing?
plz send me general of ongc
i need some objective type questions in instrumentation
what is the electrical operation procedure for switching on 27.6MVA electric furnace.
Q- Control problem are mainly classified in _____ types. a-)4 b-)3 c-)6 d-)nono of these Few of them i know is 1- regulator type problem (eg- Air conditioner) 2- tracking problem (eg missile trcking problem) 3- sybernatics 4- optimal control problem
Can I calibrate the Electromagnetic Flow Meter on line and How.
Q1]IF THE RANGE FOR FLOW IS -35 TO 125 WHAT WILL BE THE SPAN FOR ABSOLUTE AND FOR NORMAL? Q2]HOW TO CALIBRATE CAPILLARY TYPE LT? Q3]HOW MANY ERROR CALCULATIONS ARE THERE USED IN PROCESS INDUSTRIES? Q4]HOW TO CALIBRATE TEMPERATURE TRANSMITTER? Q5] HOW TO CALIBRATE LEVEL TROLL AND HOW TO CONNECT? Q6]PLEASE TELL ME THE BASIC FOR INSTRUMENTATION WHICH IS APPLIED FOR CALIBRATION AND FOR ALL? PLEASE MAIL THE ANSWER TO honest_yes@yahoo.in
Sir, I want junior executive, Instrumentation question papaer for IOCL, Plz send to arabinda.ghosh83@gmail.com