Answer / nestor

Read the manual for specific positioner but the basic is to set it within the angle travel range from 0-100 opening otherwise you cannot calibrate it, let say at 50% (12mA) signal it will be at the midway of the travel angle of the positioner and lot to set like (linear/rotary/open clockwise or CCW etc.) so you need the manual user.

What is the use of +/- 20ma in analog measurement,and which instrument gives +/-20ma output

1 Answers  

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why we use cascade control and feed forward control in 3 element drum level control measurement of steam drum .what is cascade and feed forward control system ?give example .

0 Answers   Visa Steel,

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What is super thermocoupal?

0 Answers   Emco,

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how to calibrate an error for pressure transmitter, make it easy to understand

2 Answers   Descon,

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how to make temperature closed loop

1 Answers  

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Why we use 250 ohm resister in series hart communicator?

3 Answers   Thermax,

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What are the different types of thermistors used in industries? How to the operation of typical thermistor?

0 Answers  

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how to measure flow with dp

1 Answers  

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How to derive IO Count (AI, AO, DI and DO ) from a Field instrument (FI) Bill of Quantities (BOQ) given by client.

1 Answers  

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how can we measure the pressure in underground cooling water pipeline by using pressure transmitter?what about the tapping position?

2 Answers  

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can any one give me the cost price of yokogawa & rosemount transmitters

4 Answers  

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how to do loop checking pls email to shanavaska2000@yahoo.com

2 Answers   Kentz,

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