what is the formula for calculating milliampere at different
pressure points for eg 4-20 ma = 3-15 psi but if i have to
check the ma at 4.6 ma?
Answer Posted / gunasekaran
4~20mA=3~15psi
4.6mA=?psi
psi =(mA -mA Zero)/(mA Span)×Range Span+Range Zero
4.6-4
psi = ------ x 12+3
16
0.6
psi = ---- x 12+3
16
psi = 0.0375 x 12+3
psi = 3.45
4.6mA = 3.45psi
| Is This Answer Correct ? | 19 Yes | 4 No |
Post New Answer View All Answers
1.what is controller proportional gain 2.what is the controller intergral action time. 3.A proportional plus derivative controller that has a proportional band of 20% and a derivative action time of 0.1 minutes. Construct the shape of the output waveform for the triangular input if the input rises and falls at the rate of 4 units per minute.
the whole paper was based on Transducers..questions like define repeatability, error,accuracy,precision..den there were many q. on the conversion of Pa to mmHg and other units.. also..der wer few Q. on some level sensors(with diagram)
What is force balance principle? State some of its’ advantages.
what is the input of digital counter during the the calibration time?
Explain how thw analog to digital converter works with the circuit diagram
How it the difference between force balance system and dispalacement balance system?
How to calibrate Toxic gas detector?
Instrument QA/Qc what is the project quality plan?conduit inspection RFI. which documents attache with package?
Can any body tell me about SAP MAINTINANCE MODULE. WHAT IS its function and application. And study material Source about it. I shall be very thankful.
what is the criteria to decide conductor size of a cable ?
Hi Friends i am going to write BARC written test by this month 20th (20-5-2008). So please if any body knows the details about this or having previous question papers pls mail me to kkumarei@gmail.com. For Suggestions give one message to 9962122264
why we use impulse line of flow transmitter at 45 deg. angle both side of orifice plate.
how will you check torque value during Factory acceptance Test for control valve/ESD ON/OFF VALE how will you confirm this torque value is being correct, Which document will you be refer.
any body who gone thru recent iocl interview.INSTRUMENTATION questions. I need.
Identification of control valve parts.