Is there any temperature compenasation for the air flow from FD fan & SA fans which supplies air to the Boiler?

2 Answers  

---

which are types of orifice tap ?

2 Answers  

---

generally for transmitter we are giving supply 24vlts?but we are getting output 4-20ma ? how it is possible? is there any operation inside the tx?pls give complete information?

3 Answers  

---

How comparison of objects is done in PHP5?

1 Answers   TIS,

---

we have a s-5 simense plc having op7 .recently on op7 showing error 1.plc not present 2. DB error frequently. can u have any solution . please send me.

0 Answers  

---

What is difference between scada and virtual instrumentation?

1 Answers  

---

what is actual drum level and compensated drum level?

0 Answers   APGenco,

---

how to define the P,I,D value in tuning pid loops in online.

1 Answers   Thermax,

---

How much flow is passing through 6 inch line? There are no gauge, no any transmitters in line.

3 Answers  

---

how far the two wire transmission (loop power) maximum distance suitable?

2 Answers   PCIL,

---

if we mount flow tube in arrow direction then flow comes in negative & if we mount it another direction then flow comes positive,So what will be the problem

2 Answers  

---

what is the difference between plc and pc?

5 Answers   ADI, NFCL, Wipro,

---