how to calibrate TT transmitter
Answers were Sorted based on User's Feedback
Disconnect the field sensor.
Connect a calibrated/traceable temperature signal calibrator.
Apply LRV value.
Trim the 4.0mA output.
Apply the URV value.
Trim the 20.0mA output.
Check as many interim points as the calibration protocol requires and note the output and the deviation from the expected value.
Determine whether the transmitter is within spec from the deviation values seen.
If transmitter passes, reconnect the field sensor to the input.
Fill in the paperwork.
Carl Ellis
Measure First
Is This Answer Correct ? | 9 Yes | 3 No |
Answer / eid elatawy
First i have to know the connected element
1. RTD :using resistance box and divide the range into 4 quarters for example the range 0 to 100 deg we have 0,25,50,75,100 will find the related resistance from the table and see the transmitter output and if any deviation will make trim zero and span trim.
2. TC the same idea but we use MV supply and by using TC tables.
Is This Answer Correct ? | 4 Yes | 0 No |
Answer / karishma
First do span and zero adjustment of a temperature transmitter. Then when the input signal is zero the output is 4mA if not readjust the span and zero again provide 25% 50% 75% 100% Signal and see the output it should give 20 mA for 100% signal input.
Is This Answer Correct ? | 1 Yes | 0 No |
In your own words, would you expect an ultrasonic level device to work better in a pressure vessel with a high pressure or a strong vacuum, and why?
what's the minimum level required of SIL (safety integrity level)to use fire and gas system?
what is reason behind boiler drum level transmitter range put -450 to 0 mmh2o.
I need circuit for RTD senser?
How much Resistance Show by RTD(PT100) when it is installed in process(Consider Process Fluid temp 29 Deg C)?
what is the difference between dcs & plc
sir, give me placement papers and interview quistion of birla group company of copper.
what is the difference between PLC & DCS
Sir, I want junior executive, Instrumentation question papaer for IOCL, Plz send to arabinda.ghosh83@gmail.com
Explain the working of rota meter.
what is difference b/w the solinoid volve and autodrain?
What's the difference between cold loop test and hot loop test?