why we connect digital multimeter in series for dc current measurement and parallel for dc voltage measurement.

4 Answers  

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any body pl suggest me the best type of transmitter for level monitoring of a distillation still which consists of highly corrosive and inflammable liquid.closed vessel height=5000mm especially in petrochemical industries

1 Answers  

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capillary type tranmitter using remote seals and capillary tubes filled with liquid of known of known density so if you wanna callibrate it just close block valve just before capilary @ high side & connect druck apply it's calibrated range pressure as normal calibration ensure low side block valve must be closed & if you asking commissioning so this is not a DP type pressure tx so simple if you wanna put in servie this tx just open high side block valve & than low side block same way i do it but still transmitter showing -13 ma.just tell me what i want to do ?

1 Answers   Gasco,

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There are many type of control cable like pair,core,tried, What are defination each one

0 Answers   Birla,

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y v r connecting 250 ohms resistor in series when u cummunicate with BT in bench calibration?

5 Answers  

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any thing about plcs?

4 Answers  

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what is positive feedback and negative feedback?

2 Answers   CEPC,

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How we select the range of level transmitter in closed vessel ?

4 Answers   Rosemount,

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What is the difference between DCS and SCADA?

1 Answers  

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What is surge in compressors? How to detect and control it?

1 Answers   DEWA,

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Punj lloyd is coming in our Jadavpur Universtiy campus for campus placement. Please send me some hints about the writtend exam. My email id is subratafriends@gmail.com

0 Answers   IGL, Punj Lloyd Ltd, Shapoorji Pallonji Group(SPCL),

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What should be hight of CONTROL panel for access & OPERATION What is BIS & INDIAN STD for SAME?

3 Answers  

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