Describe how to calibrate various types of instruments and
transmitters using ISA industrial consensus standard
techniques.
- 4 Answers
- 14219 Views
- Reliance, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / amith.patil17@gmail.com
Calibration Can be Carried out By Calibration Instruments
such As For Pressure Transmitter,level transmitter the
pressure pumps with mA in Series or Can be used simply
HEART with a Pressure pump,By increasing the pump pressure
the master guage shows the indication of the Standared
pressure Corresponing to which mA reading canbe Obtained
check for incrasing and decreasing Valus for 4,8,12,16mA If
Error Occurs then Set a Zero or Span Adjustment,Simillarly
For RTD,T/C in Furnace is Carried out.
| Is This Answer Correct ? | 16 Yes | 1 No |
Answer / ram
Calibrate to any instruments like pressure transmitter by using the druk calibrator to build the pressure depends on transmitter range and measure the 4-20 ma it's increase or decrease have a span and zero settings .0_30bar like initially 4ma,8ma,12ma,16,20ma.and using hart communicator also
| Is This Answer Correct ? | 3 Yes | 0 No |
Calibration of instruments are carried out under master equipment,they are calibrated under the "National Instrumentation Laboratory".
I can not tell u about the detail because it is under rule But i will explain it with example:
To calibrate a temperature Gauge-
The master equipment use is "Fluidless temperature Calibrate".
it work With out fuel so it is called Fluidless Temperature Calibrator the only thing u have to do is Put the End nod into the master equipment and initially set the temp. to 0degree cent. and step up to 30degree cent. with this see the reading proportionally in the Gauge no need to calibrate if it give +-0.2 reading. if it give deviation of +-5 then adjust the span and zero to set point result we been seen these is the method of calibration of temperature gauge.
Other example of master equipment are microprocessor based pressure calibrator,Macloid gauge etc.
| Is This Answer Correct ? | 0 Yes | 3 No |
What is mean by ATEX?
what is the difference between two wire transmitter and 4- wire transmitter
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)?
Why flow/pressure transmitter before control valve?
what is a boiler tube leakage detector? ... what is the working principle ?
differentiate different units of pressure like US & UK standards
what is span adjusment of transmitter? what is the function of positioner/
what is difference between fork type and capacitance type level switch. where it is using
Can anybody tell which type of quections are asked in interview for projects? plz give its urgent.....!
What is the purpose of LO Overhead tank in turbines.
Can please tell mi about SIOS, PRM, SERVER, and what is the diference between PIN LAN, PCS LAN,APC Server, and please send the Doc if possible for referance,mail id patil_amit17@yahoo.com
where using the 0-20ma in feiled instrumentation? why its using?
-
Civil Engineering (5085) - Mechanical Engineering (4451)
- Electrical Engineering (16632)
- Electronics Communications (3918)
- Chemical Engineering (1095)
- Aeronautical Engineering (239)
- Bio Engineering (96)
- Metallurgy (361)
- Industrial Engineering (259)
- Instrumentation (3014)
- Automobile Engineering (332)
- Mechatronics Engineering (97)
- Marine Engineering (124)
- Power Plant Engineering (172)
- Textile Engineering (575)
- Production Engineering (25)
- Satellite Systems Engineering (106)
- Engineering AllOther (1379)
