Answer / ginoop

range =lrv & urv
eg: 50 to100mmwc

span= urv-lrv
eg : span of 50 to 100mmwc
=100-50
ie span=50

Answer / r_vaya

Range is operating units of Instruments from lower to higher 

Span is the gap between range. 

Answer / r_vaya

Suppose Transmiter is calibrated at -100 to + 100.
Determining it's LRV =. -100     And.    URV. =. +100

Thus in above case :

Range is -100 to + 100 
Span is 200 

Because,
Span is the gap between LRV  and  URV 
That'swhy (+100) - (-100) = 200 become a Span 

WHAT ARE THE INSTRUMENTAL DIAGRAMSOF VALVES?

0 Answers   Artikal, ITC Infotech,

---

What is the main difference between Cavitation and Flashing?

1 Answers  

---

define optical temperature detector

1 Answers  

---

what is buoyancy law?

1 Answers  

---

What is SCADA ? WHAT is it role in DCS ?

3 Answers   Honeywell,

---

What is ptw and write 3 types of ptw?

5 Answers   Emco,

---

what is purpose of three way manifold valve using for dp transmitter

1 Answers  

---

SIR MAY I KNOW IF RADAR TYPE LEVEL TRANSMITTER SHOWING IN THE FIELD 0 % LEVEL AND IN DCS SHOWING 100% THEN WHAT IS THE CAUSE I CLEAN THE CHAMBER & TAKEN ONLINE BUT ONLY ONCE ITS BECOME ZERO IN DCS BUT AGAIN 100% SHOWING IN DCS,THEN I REMOVE THE POWER SUPLLY AND CONNECT IT AGAIN .IS IT OK BUT STILL IN THE DCS ITS 100% AND ON THE DISPLAY ITS INITILAZIATION PLEASE HELP ME READRING THIS?

4 Answers  

---

What is trim material . Why it is known as trim.

1 Answers   L&T, LNG,

---

What is Trim?

1 Answers   Gujarat Borosil,

---

for what purpose strain guage is used?

5 Answers  

---

WHAT IS THE DIFFERENCE BETWEEN A TRANSMITTER & A SMART TRANSMITTER.

8 Answers  

---