can anyone tell free downloads website for fundamentals and principle of basic pressur,temperature,level and flow

2 Answers  

---

In RTU Panel we are having several Analogue & Digital Inputs /Outputs. We are recently facing some problems over Analog inputs , which are not updating properly (But Digital Input are updating normally) Can any one tell me from where the problem is creating , we have checked PLC CPU card, Analog Input card & we reconfigured ,But still the issue is there. Issue : 1. Sometimes Analog values are updating & sometimes not. 2. Analog values are not updating normally , showing some wrong Values 3. Total dead (0 value) Analog values are Level & flow measurement from the field instruments. (But in field the instruments are working normally & Displaying the values normally in local display unit) This problem we are facing in our Water Plant. If any one experienced this same problem or having any ideas related to our issue PLS send your valuable Answers/Replies...

6 Answers   L&T,

---

what is mean by live zero and dead zero

3 Answers  

---

i have been asked by QAFCO to appear for interview for thy post of Instrument Designer(INTOOLS)..i m engineering graduate with 5 years exp. in design engineering.Will this job profile suit me??i need all ur help n suggestions for thy same?

0 Answers   QAFCO,

---

what is the meaing of calibration curve?

3 Answers   HCL, Honeywell,

---

plz tell me clearly about PID.."when v have to change I value,D value,GAIN??

0 Answers  

---

Can anyone explain about ELectropneumatics principle?

1 Answers   Forbes Marshall, Step,

---

In vortex flow meter how can measure the frequency of vortex generated by vortex flow meter

4 Answers   Cadila,

---

Explain about 4 wire instrument concept & tell about its wiring fron sensor in Field to PLC panel.Explain with an example?

3 Answers   IOCL,

---

field bus transmitter calibration procedure tell me

0 Answers   BAP,

---

if drum level is low what is interlock? i mean we put interlock to fd fan or id fan ?

4 Answers  

---

what is zero trim and span trim?. at which problem we need to use this?

3 Answers  

---