Answer / mohammed emaaduddin

I donno the exact number of methods of temperature
measurement. But the different measuring devices for
temperature measurement are,
Thermometers, Pyrometers, Resistance Temperature
Detectors(RTD), Thermistors, Thermocouples and Thermowells

Answer / sudhansu

temperature can be measured my basically two ways...
a)by direct contact method in which we
have-rtds,tc,thermometers etc. where we have to make direct
contact of transducer with the mesurend.
& b)non contact type like pyrometer

Answer / sandip patel

same with the addition bimettalic strip is also one of the measuring device for the temperature

Answer / imam

rtd.tc .termistor

Answer / abbas

1.mechanical methods(expansion of materials,pyrometers)
2.electrical methods( rtd,tc,thermistors)

Answer / abhay raj

exactly the same answer as stated in ans. no- 4.

non contact method used to measure temperature is- RADIATION
PYROMETER

I want to measure level under vaccum by using DP Tx and vaccum vary between -500 to -670 mmHg and process fluid is accetic anhydride if consider process fluid density 1 kg/cm2. how to calibrate Tx ? consider level is 0 to 100 Cm.

1 Answers   CCC,

What is the working principle of the magnetic meter?

0 Answers  

what is "smart" in smart transmitter ?

4 Answers  

how u calibrate pneumatic n motorized c/v?

0 Answers  

i saw in my company drawing seat cable size as mensioned like this 12p*15 sqmm,12t*1.5sqmm, 9c*1.5sqmm. now what my que is what is mean by p , t , c.

3 Answers  

Why do we have earthing cable in branch cable and shield in the same cable?

0 Answers   Process Control Technologies,

what's meanning of 1250KVA and how to calculate with Volttage and Current. answer give with example.

3 Answers  

Generally in which location ( JB or IO card or DCS) the thermocouple compensation is done.Also where they measure the atmosphere temp ( for compensation) in JB OR DCS panel? How they compensating that atmosphere temp? is any circuit for that ( like in rtd wheatstone bridge)?

3 Answers  

Hi buddies! my name is sachin and i am working as a electrical and instrumentation engineer in a paper plant. right now i am facing a problem and if someone could help me it will be an immense pleasure to me. i am using AC 800M to synchronise DCS500 drives on paper machine and rewinder.communication is on PROFIBUS and we are using NPBA-01 module to link profibus to DC drives.But these days two of these drives are showing a error named FIELDBUS COMM.TIMED OUT and the drives get tripped.I have changed the NPBA module and PROFIBUS cable.So if anyone can do please help me out with this problem.I'll be highly grateful.

0 Answers  

What is force balance principle?

0 Answers  

what is the difference between Feedback controller and Feed forward controller. and when it is to be used.

3 Answers  

line up procedure for dp type flow transmitter?

0 Answers