What is difference between reset and initialization in industrial automation?

1 Answers   Marafiq,

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what are the sensor types of vibration&speed?n what is proximity sensor?

3 Answers  

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i have level transmitter -400 to 0 range for steam drum application but i am unable to calibrate if installation of lt below lower tap what will be the effect ? and as per std wht is location of lt ,above lower tapping or below

1 Answers  

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What is the formula to convert mv to temperature in k type thermocouple?pls simply elaborate? I got one ans.it is Temp=mv×25°+atmospheric temp,but here what is 25°,i confusef ,so pls????

2 Answers   HPCL,

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can i calibrate DP transmitter online (while Tx in Service) if yes ,how?

1 Answers   CEPC,

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How 2 calibrate level tank having large height..?

2 Answers  

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why we are using pnp npn for sensors is there any other type?

1 Answers   CGL,

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Why ues 250 ohms Resistor during hart type instruments calibration with hart protocol in details ?

5 Answers  

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how to overhaul control valves.what are the proper procedures.

1 Answers   Jindal, QAFCO,

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thru which signal does µP communicate with memory

3 Answers  

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I work on a electronic positioner transmitter 4211 at the field.I connect my multimeter in series to get the current output then I calibrate it to 4ma in 0% of position of the valve and 20ma in 100% position of the valve.My problem is in the field I get the correct output current based on my multimeter but in the dcs they only receive 40% in a output 20ma of this positioner.Then I try to simulate in this analog card and they receive the equivalent percent on the value that I simulated.Is ther any possibility to reset the zero and span of this positioner 4211 fisher.And what other possibility I can do to fixed this.This is my email add ( landicho_randy@yahoo.com )

4 Answers  

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what is diffrence between analog card and digital card in plc.how analog card work,Please explain in detail.Please send it on abhi_vyas@sify.com

6 Answers  

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