Interested to Buy Any Domain ? << Click Here >> for more details...
how to measure temperature from resistance of rtd?and how to
measure temp from voltage of thermocouple?is there any formulas?
- 3 Answers
- 10652 Views
- I also Faced
- E-Mail Answers
Answer Posted / amit
Temperature measurement.
With RTD:
The Material used Is Platinum Which is very Sensitive to
the temperature as the temperature Changes the Resistance
changes.Which is next connected to form a Weatstone bridge
in the transmitter then According to the formula
R1/R2=R3/R4 since R2,R3,R4 are Constant So Change in RTD
Resistance R1 The Corresponding mA Signal is Obtained
through the transmitter to the system in control room.
With T/C:
Were As T/C is the Formation of two diffrent Material
Combined to form a T/C(SEEBACK EFFECT)As they r two
different materials Change in temperature Causes the change
in EMF generation between the two materials,This mV Signal
is then Transmitted to Marshelling cabinet to Convert it
into V because all Digital Signal read minimum 5V,it is
Converted by OP-Amp with 250ohm Resistance Across it whict
is convinient to DCS to read it.
| Is This Answer Correct ? | 7 Yes | 5 No |
Post New Answer View All Answers
use of split range ? where it is used ? in which control loop it is used ?
Basically iam Instruemntation Engineer, but Iam interested in Instruments design engineering, so plz guide, is there any course, training or Softwres to become Instrument design engineer??.
What is wet leg condition and why is it used?
what is the difference between scaler and vector drive
CONTROL VALVE OPERATING IN MANUAL BUT NOT IN MANUAL. WHAT SHOULD BE THE PROBLEM ?
plz tell me clearly about PID.."when v have to change I value,D value,GAIN??
what is the different between deflection type measurement and null type measurement in RTD?
Difference between ultra sonic flow meter
Somebody can explain me about >Critical Loops, calibrations, ESD critical Loop checks, Logic Diagram / Cause & Effect checks for ESD loops,
what is droop in governer ,type of droop ,how it work
sir i m preparing for BARC but i am not getting any papers to prepare for this exam so please send me some sample papers to my i.d for the preparation of barc.
installation process of orifice,a question asked for confusion creation in interview by BARC 1.if orifice is tightly fitted with pipe ,it will act like venturi 2.if orifice is left hanging in between liquid it will not create the pressure difference exactly,
In Safe Guarding test what means by "Failed to Danger" ?
What is the use of GMV in turbine?
In my company plc based winders are operated. one day there was a data transmission failure alarm shown on pc. as per sir instruction we have reset master plc but winders were not triped and alarm gone. so what master plc do?
