Answer / kumar

Mass Flow Rate represents the amount of mass that passes a
specific point over a period of time.

Mass flow rates are used to measure the weight or
mass of a substance flowing through a process
operation. If the volumetric flow rate and density
are known, the calculation is based on the formula

W = Q x r
where
W = mass flow rate
Q = volumetric flow rate
r = density (r = density “rho” )
Megnetic flow meter:
What is a Magnetic Flow Meter?

A magnetic flow meter (mag flowmeter) is a volumetric flow
meter which does not have any moving parts and is ideal for
wastewater applications or any dirty liquid which is
conductive or water based. Magnetic flowmeters will
generally not work with hydrocarbons, distilled water and
many non-aqueous solutions). Magnetic flowmeters are also
ideal for applications where low pressure drop and low
maintenance are required.

Principle of Operation
The operation of a magnetic flowmeter or mag meter is based
upon Faraday's Law, which states that the voltage induced
across any conductor as it moves at right angles through a
magnetic field is proportional to the velocity of that
conductor.

Faraday's Formula:
E is proportional to V x B x D where:

E = The voltage generated in a conductor
V = The velocity of the conductor
B = The magnetic field strength
D = The length of the conduc

without color coding, without nameplate, without multimeter how can you find the type of thermocouple???

1 Answers   Sabic,

---

 why Fahrenheit unit of moistur analyzer transmitter

0 Answers   Infosys, Samsung,

---

i am working in the automation company...i want to just know how actully pid control valves are tune????...

1 Answers  

---

role of electrical engineer in the instrumentation industry

1 Answers  

---

what is mass flow meter, working principle of mass flow meter and its installation.

2 Answers  

---

Operational amplifiers

0 Answers   CCIE,

---

Why do we need to install hook-up line differential pressure type level transmitter when the differential pressure type level transmitter with capillary are available?

2 Answers  

---

What are different types of cable?

0 Answers  

---

why the derivative in PID is always set to zero?

3 Answers  

---

I work on a electronic positioner transmitter 4211 at the field.I connect my multimeter in series to get the current output then I calibrate it to 4ma in 0% of position of the valve and 20ma in 100% position of the valve.My problem is in the field I get the correct output current based on my multimeter but in the dcs they only receive 40% in a output 20ma of this positioner.Then I try to simulate in this analog card and they receive the equivalent percent on the value that I simulated.Is ther any possibility to reset the zero and span of this positioner 4211 fisher.And what other possibility I can do to fixed this.This is my email add ( landicho_randy@yahoo.com )

4 Answers  

---

Calibration procedure for electro magnetic flow meter

0 Answers  

---

list of flame proof certification ?

1 Answers   TATA,

---