Answer / mahesh

Before start up a plant need to cheek instrument range, connection, parameter, soars. different cheeking only help of p&id.

Answer / raja2016

In addition to above ans w. r.t an instrument...

w.r.t to a system consists of PLC panel
Earthing should be done properly and proper earth resistance value...
Electronic earthing and body earthing..

UPS supply availability, all the cables.,
PLC-MCC
PLC- field
ensuring laid,terminated and loop checked okay...

PLC- SCADA PCs all Ethernet cables laid and terminated as per system architecture...

Answer / s93381

before the plant startup check all system instrument parameter that is Pre- commissioning.

Answer / faiyaz

before start up the plant we check all the instrument and parameter with the water in process line that is called pre commissioning

Answer / faiyaz

pre commissioning is the process of providing the ability of a pipe line and piping system to contain product without leaking

What is difference between loop and zone ?

5 Answers   Adgas, Bilt,

What is the purpose of RS Networks

2 Answers  

Lists Different types of Tappings.

4 Answers   TCS,

can a control valve works without positioner?why need tunning of c/v?

4 Answers  

What is the expansion of RADAR? How it works?

7 Answers   RasGas,

If a warning lamp will operate with the ground circuit is bypassed with a jumper wire to ground, what should you check?

0 Answers  

when the operation engineer told you that he gives the control valve order to open but there is no response ! what will you do ? and if you found that there is astuck , what will you do ? (note : it is apanumatic valve )

5 Answers  

differentiate different units of pressure like US & UK standards

1 Answers  

How to derive IO Count (AI, AO, DI and DO ) from a Field instrument (FI) Bill of Quantities (BOQ) given by client.

1 Answers  

PLZ explain to me massflow

4 Answers  

What are the difference between mass flow meter, magnetic flow meter and vortex flow meter.

1 Answers  

how many types 0f thermocouples?

6 Answers   HZL,