Answer / guest

-200DEGREE C TO +650DEGREE C

Answer / amit

TEMP RANGE OF PT100 IS -250 TO 850 DEGREE C

Answer / george mathews

PT 100 RTD can sense the temperature and can work good in a
temperature range between 0 degree c to 300 degree c.

Answer / s.mohanty

-200 to 850 deg

Answer / g.venkat narayanan

PLATINUM RESISTANCE THERMOMETER RANGE IS -200 DEG C (17.08
OHMS) TO 660 DEG C (337.03 OHMS)

Answer / aatif alvi

PT 100 is From 200 to 850 degree cent

Answer / bhag singh

390.48 ohms

how flame detectors sense the flame.

3 Answers  

Control valve question what is the meaning of cauge.?what is the use of cauge?

1 Answers  

What is the relationship between GAIN and PROPORTIONAL BAND.

1 Answers   Kharafi National, Sabic,

Qatar fertilizer call me for interview as Instrumentation Project Engineer. Please let me know what kind of question they asked ? ALso they said they will take Written test, any idea about this written test ?

1 Answers   QAFCO,

If we interchange HP and LP tapping in drum level measurement and reverse LRV & URV correspondingly.What is the difference between the normal tapping(HP,LP) and reversed tapping(LP,HP)?

2 Answers  

In field side transmitter voltage droping here no loose connection then what will happen?

2 Answers   Edac,

what is Automation?

3 Answers  

Hi friends, from Aug 4th onwards iam getting spikes for analog inputs in our DCS for a period of 800ms. I throughly checked every thing, finally i found that the DI, DO's from MCC panels shields are terminated in the Signal Earth where Analog Input signals shields are terminated. Is there any problem with this type of termination?. i checked the induction voltage from MCC and getting around 25VAC, please suggest me in this concern. Our plant is 8months old only. DCS is Siemens Make Simatic PCS7, and the transmitters are Yokogawa make.

1 Answers  

Convert a pressure, level, flow, or temperature process variable value into the appropriate pneumatic or electrical value given different types of instruments.

6 Answers   Jindal, MCL, Thermax,

A pressure differential gauge type of instrument has a manifold with 2 isolation valves (hp and lp),2 vents(1 each for hp and lp) and 1 equalizing valve. Determine the position of each valve(either fully closed or fully open) when troboulshooting to: 1. zero the transmitter. 2. determine if there is a block in the impulse line. 3. determine if the gauge is functioning properly. The process fluid is water.

1 Answers  

In control valve there are two type of valve seat we can use metal to metal seat & soft seat.On this valve seat i have following doubt. 1)I have never seen practically the internal assembly of valve so my doubt is that basically weather the seat is soft seat or metal its basic MOC is same as valve body(SS or CS) only in soft seat we are using PTFE ring & place on valve seat & in metal this PTFE ring is not threr am i correct??????? 2)what are the common general rule for using metal to metal seat & soft seat,means its depend on process parameter like liquid,gas, steam & on valve leakage class.

1 Answers  

Explain Gas Turbine startup and shutdown sequences

0 Answers