Answer / jaffer

J,K TYPE

Answer / mallu byali

k type is an cromal-alumal,range 0 to 1250 degree
j-type is an iron-constant,range 0 to 750 degree

Answer / anoop dwivedi

basically k type tc is mostly used,b'coz its range 0 to 1250 and less cost

Answer / abhijith

j and k type

Answer / greenborhan

As i know K,S,J types are used mostly. But i m giving a list of all types of thermocouple....
K-type is a Chromel-Alumel, Range: -200 to +1200 C
S-type is a Platinum+Rhodium (10%)+Platinum (90%), Range: 0 to +1500 C
J-type is a Iron-Constantan, Range: -150 to +1000 C
R-type is a (Platinum+Rhodium)13%+Platinum, Range: 0 to 1600 C
E-type is a Chromel-Constantan, Range: 0 to +1100 C
T-type is a Copper-Constantan, Range: -150 to +350 C

greenborhan@gmail.com

Answer / arvind

most of the time duplex connection thermocouples are used.

What is input and output of vaiberation transmitter and what is its unit.

4 Answers   SMH,

what is meant by control valve sizing?

3 Answers  

dear sir we have insatlled positioner model no.sipart PS2 make Siemens at our control valves . now problem is if we want to increase the response of valve opening speedy /fast. what parameters do we change for positioner ? any idea. please guide us.

1 Answers   CPL,

1,why we use 4-20 ma output of all instrument qhy not use 0- 20, 2,what is the different between PLC & DCS. 3,how can we meaure maximum span of new flowmeter if not given any information.

4 Answers   Reliance,

i/p converter always for supply pessure from 3~15 psi only !! And from where this converter bleed the air.

2 Answers  

Meaning of the following a. IOP- Manimum; b. IOP- Maximu,;

1 Answers  

Specify ideal accuracy of flow element like orifice plate, Ventury, Annubar. Ultrasonic flow meter etc.

1 Answers  

i have one tank of 500mm height, which is in under vacuum of 735 mmHg, I want measure level of the same using DPT , SO WHAT WILL BE THE URV & LRV, DENSITY OF THE TANK FLUID IS 0.95. is there necessary to fill the LP side with fluid.

7 Answers  

how can we calibrate the differential pressure transmitter by using HART communicator

8 Answers   Hindalco,

why cant we use mV instead of mA?

12 Answers   ABB, Power Grid, Qatar Gas, USW, Visa Steel,

flow transmitter formula?

1 Answers   BEMCO, Siemens, Yokogawa,

why direct mounted pressure transmitters is always installed with DBB ( double bleed block) valve in process line or top of the tanks ?

1 Answers