What is difference between reset and initialization in system.

1 Answers   Marafiq,

---

what is pt100 RTD, and does 100 stands for

8 Answers   Tata Power,

---

regarding level tx i would like to know how to select the range of the level transmitter in a closed drum(steam drum or deaerator)?

1 Answers  

---

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

0 Answers   BARC,

---

How to carry out hot loop checking of closed loop pf temperature control valve & temperature transmitter?

2 Answers  

---

Why any transmitter signal is 4-20 mA only Why is started from lower range 4 mA and upper range is 20mA.

5 Answers   Edac,

---

Can we use PLC in Hazardous Area?

2 Answers   MNHG,

---

What is the relationship between GAIN and PROPORTIONAL BAND.

1 Answers   Kharafi National, Sabic,

---

Instrument QA/Qc what is the project quality plan?conduit inspection RFI. which documents attache with package?

0 Answers  

---

How flow control valve is working with pnuematic positioner and I/P convreter from command is given from remote

1 Answers   Ecil, GAIL,

---

how to work static pressure sensore how to work dpt

0 Answers  

---

In case of Transmitter's(e.g.Ultrasonic Flow meter ) we have an normal practise of selction of upstream and downstream distance such as (20D and 5D ).can anyone please let me know whow to calculate "D" ?? i guess it refers to pipe thickness is t right ?

2 Answers  

---