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

what is AWG?

2 Answers   NTPC,

Why we not use 2-20Ma or 1-20Ma

5 Answers  

how u measure dp in dp tx? how u calibrate a dp tx?

3 Answers   Invensys,

what is thermo coupler and how it works

2 Answers   Tisco,

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,

how manys ways dp transmitter can be calibrated having range of -150 to 400mmwc,what side pressure u will apply?

3 Answers  

Why mixer nd grinder Is example of constant torque load not variable torque load ???

0 Answers  

how can be connected thermocouple in series?what is the need?

2 Answers   Hindalco,

Why only negative 24 vdc supply give in vibration measuring system.

6 Answers  

what is difference between pressure,flow and level control valve.

3 Answers  

Why DP level transmitter preferred for closed vessels and Radar level transmitter for open tanks??

2 Answers  

How Many Slave Can be used in one slave ?

2 Answers