Answer / deepak munjal

shield is not connected both sides to avoid ground loop
error. Ground Loop error is occur dueto difference in
ground potential at the Shield Connection. It is best to
ground shield at only one end.

Answer / muthu s

shield is generally connected at panel(DCS or PLC panels)
side only to avoid the circulation of current which is
produced by stray pick up.Normally current can flow through
closed loop only, and by keeping transmitter end left
opened, there is no possible of current flowing.

Answer / s. mitra

To drain out the stray current from the loop. If we connect
both end of shield then the induction of circulating
current will create error in main signal.

Answer / bharathi

To avoid stray current in the loop

Answer / giridharan

shielding is first of all resist the melting of temperature ,
the temp to sense has to be inserted in high temp region

1)why we are using mostly Ultrasonic Flow meters to measure flow, rather than Radar waves? 2)why we are using Ultrasonic waves and Radar waves to measure the Level?

1 Answers   NTPC,

---

What is instrumentation amplifier?

3 Answers  

---

what is the primary sensing element in flow or pressureand level transmitter?

5 Answers   Power Grid,

---

what is the essential difference between DIODE and SCR in term of application.

2 Answers   ADMA OPCO,

---

Q- Ordinary Water Tap is which kind of controller ? P , PI or PID i chose the option of ON - OFF type controller but ambiguity is that for different positioning of tap we get different flow

1 Answers  

---

---

How to gennerate earth leakage monitoring alarm for solenoid valves in control system?

2 Answers  

---

i install a DP transmitter of Faugi on drum level of boiler but i face a problem in it when i engergize the transmitter the meter shows 0 or 100% no variation in it.the distance of two points is 19.5 inches, i am in trouble please suggest me what can i do it's very urgent Please reply me as soon as possible Best regards ikraam haider

5 Answers  

---

Punj lloyd is coming in our Jadavpur Universtiy campus for campus placement. Please send me some hints about the writtend exam. My email id is subratafriends@gmail.com

0 Answers   IGL, Punj Lloyd Ltd, Shapoorji Pallonji Group(SPCL),

---

why are set -10vdc in bently neveda vibration system.

4 Answers  

---

what is instrument termination

1 Answers  

---

whats diffeence between dcs & scada operation.

3 Answers   Orchid, Reliance,

---

can any one tell me when ongc placement test and its forms is available????/ pls tell me if u know

0 Answers  

---