Answer / narendra mishra

Yes u can do zero trimming. You might be familiar with zero and span.zero trimming means setting zero(lower range value) for transmitter. U will get -5kpa reading in transmitter.

Answer / ilaiyaraja_s

yes, we can actually zero trim means atmosphere pressure zero(gauge pressure) so our range is LRV -20 and URV -5

Answer / ab

Simulate -20kpa before doing zero adjust......

why we use -ve voltage in vibration monitoring system.generally we use 4 to 20 mA as output of instrument then why we use voltage in vibration

2 Answers  

---

why thermocouple called thermocouple?

4 Answers  

---

How to control flow variations in magnetic flow maters..... When i will provide proper earthing?

0 Answers   ABB, L&T,

---

Why do we floating DC in DC system.

0 Answers  

---

I want to measure level under vaccum by using DP Tx and vaccum vary between -500 to -670 mmHg and process fluid is accetic anhydride if consider process fluid density 1 kg/cm2. how to calibrate Tx ? consider level is 0 to 100 Cm.

1 Answers   CCC,

---

Explain an adaptive / self-tuning controller’s major draw card.

0 Answers  

---

i am preparing for BARC ,so plz mail me how to prepare for BARC. ALSO IF POSIBLE SOME RELATED QUESTIONS. MY MAIL ID IS khushi_4uall2003@yahoo.co.in

0 Answers  

---

what is the difference between servo valve & proportional valve

1 Answers  

---

Sir,I am going to sit for IOCL written test exam. recently.Can anyone tell me the name of 'Objective type Question Book on Instrumentation Engineering ' which will help me. Pl. mail to bidyut_71@rediffmail.com / bidyut.saha2008@indiatimes.com / bidyut.saha09@yahoo.in

0 Answers  

---

How to calibrate radar lt type transmitter

1 Answers   NTPC,

---

describe flow nozzel principle?

0 Answers   SEWA,

---

Tell about your IFFCO plant visit.

0 Answers   L&T,

---