Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / nilesh66in
The power supply is a low impedance to the hart signal
shorting it out. Adding the resistor raises the impedance
so that the signal can be detected by the calibrator. The
HART protocol uses 1200 baud Frequency Shift Keying (FSK)
based on the Bell 202 standard to superimpose digital
information on the conventional 4 to 2OmA analog signal.
Nilesh Bhagwat ( Sr. Inst Tech)
| Is This Answer Correct ? | 2 Yes | 4 No |
Post New Answer View All Answers
What pressure results for a flow transmitter of range 0- 180t/h in the dcs and 0-301mbar in the field using square root extraction. Kindly also suggest formulae for the percentages 0,25,50,75,100?
1.what is the effect of vapour presuure in orifice plate flow measurement 2.which is more effective 2 pressure sensors or one single differential pressure sensor in orifice plate measurement 3.how to design a v/i converter and i/v converter 4.how many type of thermocouple are there 5.how many leads are there in thermocouple measurement 6.how pressure sensors are connected in level measurement in differential pressure method 7.what is the output of capacitive pressure sensor (ac or dc),how its o/p is signal charactarized 8.what is the physical meaning of discharge coeeficient,why it is calculated,orifice plate what is its value,why it is less than 1,Q at upstream is equal to or not equal to Q at downstream of orifice plate why?what is vena contracta in orifice plate 9.why rotameter is called variable area flowmeter,it can measure flow even if area is not varying,why it is made tapered 10.design a 10 bit counter ,which counter you will prefer 11.how to remove self heating error in RTD 12.which is more sensitive pt100 or pt50 13.why thermocouple are connected in parallel 14.what is lead contact error in RTD,how to avoid 15.what is P,PI,PID,PD controller,why there is no ID controller 16.what is override,split range,sequential,ratio,feedforward,cascade controller 17.why we moved from SR to JK and then JK to master slave JK flipflop,give correct reason 18.how to measure level of a closed container which contains vapour and liquid,remember no vapour gas should be leaked,so ultrasonic and capacitive is not an option,design another method 19.how to design horse race counter including sensors and signal conditioning element 20.what is bevelling
What is mean by analytical instrumentation?
ORP sensor working principle?
what is the reset offset and control system in instrumentation
What is the PLC configuration in Cement industry?
In turbine, what does term CDP, NI, NH, HSSOC, means
What is difference between Ionization heat and bimetallic heat
Hello to all....I am an Instrumentation Graduate and i am passed out in this year only.. I am unable to find the job in my core instrumentation.. so any boby tell me how to and where to search the job....please...and also tell me i there are any courses offered in the instrumentation stream so i can do it... you can send your suggestions to my mail-id i.e Ganesh20084u@gmail.com ... please..
detail of mass flow meter pricipal
what is a half wave, full wave, and bridge rectifer.
Why grounding is necessary? Give example with diagram.
Why the ammonia and Nitric Acid level indicators is with millimeter ? and What is the conversion form millimeters that level indicator indicate to weight ?
䑰ҕ䔈ҕ䖠ҕ䘰ҕ䛀ҕ䝐ҕ䟐ҕ䢐ҕ䥐ҕŹ
can any one explain in which term we are flow flow is it volumetric r is it mass? and y
