Answer / kashif

Isolate the Tx from process and fully depressurized it and checked if it reads 4 Ma then calibration is OK and carried out flushing of both impulse lines and gain take it in service it should read zero or 4 Ma.

Answer / bala

if the transmitter shows 4.5ma at zero pressure. we need to trim the tx by using hart communicator. there is an option in hart digital to analog trim. go to that option and make a trim and so if not D/A trim not proper then last need to replace the new transmitter.

Answer / rajesh

After the transmitter calibration they already fix the
transmitter on the prosces line. that time u check the
process line how mach pressure and check the 5 way manifold
condition and check the LP side impulseline chook. if its
ok manifold and impules line; open 5 way manifold equlizer
valve close any one hp or lp isolation valve that time tx
should be show zero 4ma. not showing 4ma. trim it zero.
zero not trimed cheange the transmitter.
Importent.
check the LRV how much its Zero Or not.
and check the wich type of transmitter.
if it is level transimtter that one different type of
callibration. check the where using the prossce line.
thank you
rajesh

Answer / balakrishnan

no. it wont affect the pocess.

how can leve transmetter calibate in feild .and also put cv and flow plz .....

0 Answers   IBM,

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The DCS stand for________________________. it is composed of the following major components: a:______________ b:______________ c:______________ d:______________

2 Answers  

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Programmable Logic control.

0 Answers   CCIE, NCVT,

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Q- Control problem are mainly classified in _____ types. a-)4 b-)3 c-)6 d-)nono of these Few of them i know is 1- regulator type problem (eg- Air conditioner) 2- tracking problem (eg missile trcking problem) 3- sybernatics 4- optimal control problem

0 Answers   Sail,

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[ MITUTOYO / TESA / KUMAUN / MAHR / BRITOOL / TOHNICHY / DIATEST-GERMANY / IMADA / TECKLOK / SYLVAC /ADITYA=ACCURATE / BAKER/ CRYSTAL / FLUKE-RAYTEK ETC. 5.=SUPPLY= VERNIER CALIPERS / MICROMETERS / HEIGHTGAUGES / SLIPGAGE / BORE DIAL GAUGES / MEASURING PINS / TORQUE WRENCHES / GAUGES.. PLUGGAUGES / RINGGAUGES / SHORE A / D HARDNESS TESTERS / DIAL THICKNESS GAUGE / FEELER GAUGES / ELECTRONIC COMPARATORS WITH PROBES / DFTMETERS / SURFACE ROUGHNESS TESTERS / DIGITAL= COATING THICKNESS METERS / PROFILE PROJECTORS /.. WE ARE ALSO DEAL IN == DIGITAL TACHOMETERS / =MULTIMETERS! / VIBRATION METERS / MEGERS- INSULATION METERS / =TE! MPRATURE INDICATORS / SOUND-LEVEL METERS / ETC... =AGENCY- FLUKE- RAYTEK.. MECO....LUTRON...KYORITSU....RION

0 Answers  

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what is the difference between E/P positioner and I/P positioner in control valve , in which application the respective positioner are used in.

1 Answers   ABB,

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For an Instrumentation Engineer, is there any effect on Instruments of safety zones like zone0, zone1, zone2. As an instrumentation Engineer, what we have to consider or remember while working in these areas.( zones 0,1,2).

1 Answers  

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what is "smart" in smart transmitter ?

4 Answers  

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What is the use of temprature compensation?

0 Answers  

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in which principle pressure tx,level tx ,flow tx,temp tx ,control valve works?

0 Answers   IOCL, JSW,

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How find CGPA? when marks are 515/850 & 2559/3350. Plz any one tell me.

1 Answers  

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what do u mean by compensation n pid tunning?in pid tunning what you tunned?is it possible 2 tune p i d

2 Answers  

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