Explain signal isolator

0 Answers  

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What is the use of double seated valve?

0 Answers  

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how many types of viberation transmitter and how to calibrate and where use of vibration transmitter

0 Answers   Sabic,

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how can i calibrate a smart temperature transmitter used by druck 720 process calibrator?

0 Answers   Texas,

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Single acting ON-OFF valve. it is air to open. when sov energized , valve will be open, so during that if air fail then what will be the condition of valve ( open or close ) ???

4 Answers  

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what are the documents(Construction point of view for a process plant) submitted by contactor initially entering in to new site for client?

0 Answers   NTPC, PSU,

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How to calibration a control valve?

0 Answers  

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when i installed Allen_bradley_RsLogix_500_Pro_V_7.0,after installation it gives the fatal error.it need activation file.from where and how i can find its activation file.

6 Answers  

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what is three element loop

7 Answers  

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We have a Yokogawa Micro-XL DCS, which is having around 300 I/O, but whenever there is any wire gets grounded in field, the 24v supply to all loops gets dipped & all the indications at DCS goes to IOP(shows input open), at present we have fixed 500mA fuses in all the lines but which does not working. Does it required to replace with lower amps fuse, then how much or is there any other solution for this.

2 Answers  

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what is the role of proportional in process control?

6 Answers   OGDCL, Trident,

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why direct mounted pressure transmitters is always installed with DBB ( double bleed block) valve in process line or top of the tanks ?

0 Answers  

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