Answer Posted / binosh
pressure transmitter:
in bench calibration connect a power supply 24v.give a
250ohms as loop resistance.connect a multimeter in
milliamph mode and connect it in series.and put a
communicator across the loop.the transmitters HP&LP sides
should be in open to atmosphere.this condition the
ammeter shows 4ma and the communicator shows LRV .connect a
pressure calibrator to the HP side and LP keep it open to
atm.apply pressure as the range and go on as 25%,50%,75%and
URV.then the ammeter shows 4,8,12,16,20ma
respectivly.incase you are not getting zero,make zero trim.
Is This Answer Correct ? | 7 Yes | 1 No |
Post New Answer View All Answers
Draw a group of instruments interlocked to a Pump & Motor?
what is the process to make control schematic ?
How can we test a bently nevda 3500/42M accelerometer monitor card by simulating it with test equipment?. what king od of signal (milli volts or volts or or resistance ) we should feed in the terminals of the card?
principle of dead weight tester ?
what is the field bus calble ? what are diffrences in orang colur cable and black coular calble ?
Define the terms Accuracy, precission, Spam, process tolerance while doing calibration of an instrument? Explaini with an example?
Give an example where you had aproblem on the job, and tell me how you solved the problem. and the finalvoutcome.
What is zener diode? What is voltage regulator?
hi,i am doing 3 year in electronic and instrumentation engineering. what type of aptitude questions will be asked in a core industries and how can i improve my skills in instrumentation?
can you send remote seal interface level transmitter calculation steps for oil water saperator.
why we should maintain neutral earth voltage below 1V while calibration? why cant it be 1.2V or 2V
What is profibus?
WHY THE DEGREE OF VALVE PLUG AND VALVE SEAT IS SLIGTLY DIFFERENT I CONTROL VALVE TRIM DESIGN
Can anyone convert a 5/2 way or 3/2 way valve into an ISO valve?
Specify for Cables - Flame Retardant and Fire Resistant?