measurement

[aeacfm]

simply , what is the difference between on-line , in-line and in situ measurement ?

[saiedmehdipour]

Dear Friend;

As i know it is referred to Instrument location; by means of:

Field (on-line) => Process wetted via isolation valve
Field (in-line) => Mounted in the process line
Field (off-line) => Not process wetted
Field (equip.) => Equipment mounted
In situ measurement => Measurement made in place in the field without collecting a sample for laboratory analysis

I hope above mentioned would be suitable for you.

B.R

[aeacfm]

Dear Friend;

As i know it is referred to Instrument location; by means of:

Field (on-line) => Process wetted via isolation valve

Field (off-line) => Not process wetted
Field (equip.) => Equipment mounted

thank you friend but pls what is the meaning of process wetted and process not process wetted

[saiedmehdipour]

Dear Buddy;

Process wetted refer to process wetted part, by means of a part of instrument which have contact process flouid.

B.R

[aeacfm]

thank you again but still some thing make me confused a little bit :
both in-line and on-line are process wet(am i right ) so what is the difference between them .
thank you again

[saiedmehdipour]

On-Line such as Pressure Gauge (PG) which isolated from process by manifold and
In-Line such as Control Valve anf Orifice Plate which have direct contact with process flouid.

[aeacfm]

thank you very much friend