Answer / sarath

yes..you can use DPT as PT by keeping LP line open to atmosphere.connect the supply in HP line.

Answer / ravi vaya

If the pressure range is low we can use DPT as PT.

Answer / uttam dutta

Normally differential pressure switch have low range, If
the max. pressure of the line is more than the max. range
of pressure switch and if pressure of high pressure line
crosses the limit of diff. pressure switch then the diff.
pressure switch will be damaged and could not be used.

By opening the low line of diff. pressure switch it can be
use to measure the pressure theoretically but practically
it is not used, more over sufficient precaution to be taken
before connecting the high pressure line to the diff.
pressure switch, and this thing is mentioned with each
diff. pressure switch catalog.

how to know the URL and LRL for steam drum level and why the calibration range is in negative ?

1 Answers   JSW, Samsung,

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1 Answers   CCC,

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EXPLAIN SOME IMP QUESTIONS AND ANSWERS ON TOPIC ELECTRONICS,INSTRUMENTATION.........

1 Answers   ONGC,

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how can calibrate pressure transmeeter in the feild ?

1 Answers  

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What is Alpha & Beta fctors related to Orifice Plate & its relation with flow?

0 Answers  

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what is the current pay package for an instrumentation engineer having 2 years of experience in cryogenic technology???????

1 Answers  

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May I have a brief note above the voltage barriers? Whats is the purpose? Please mail me if you've operational details, mail id: rajkumar.diice@gmail.com

0 Answers  

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1. How many output signals do wew have in process control? 2. Could you write down the names of the pre-commissioning and commissioning stage test instruments and explain them (more than 5 items)? 3. What is the first step to commission a transmitter on service? 4. What is RTD? 5. Find the output value in MA of a temperature transmitter (RTD Type) at 120degree celius? 6. What is the O/P signal of a pneumatic transmitter? 7. What is the O/P signal of an elctronic transmitter? 8. What is the close loop and open loon?

4 Answers  

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What will the new flow factor if D/P Transmitter is RE-RANGED from 25" WC to 50" WC

3 Answers   ADMA OPCO,

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what is the function of 3 way manifold valve in a closed loop system?

1 Answers   Emerson,

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what is the principle of vibration

3 Answers  

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How can we check Zero of DP type Level Transmitter onside?

7 Answers   Birla,

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