Instrument index

The instrument index, with measured variable, function, mounting and range.

Demonstration project - no figure here describes a real facilityChanges are not saved

Why

The rows, the counts, the confidence and the refusal to verify a disputed value are all computed from the project's documents and their evidence.

Writes are validated against the engineering rules and then refused, because no database has been configured for this environment.

Instrument index

Verified by a person

Not yet verified

Nothing machine-read is verified

Blocked by a conflict

Instrument index (13)
	Tagascending	Description	Unit	Measured variable	Function	Signal	Assurance
Select AT-1105	AT-1105	Inlet gas H2S analyser	U-11	Not stated	Not stated	4-20 mA	Unverified60%
Select FT-1204	FT-1204	Condensate export flow	U-12	Not stated	Not stated	4-20 mA	Unverified80%
Select LIC-1210	LIC-1210	Surge drum level controller	U-12	Not stated	Not stated	Not stated	Unverified80%
Select LT-1110	LT-1110	Inlet separator level	U-11	Not stated	Not stated	4-20 mA	Unverified60%
Select LT-1210	LT-1210	Surge drum level	U-12	Not stated	Not stated	4-20 mA	Unverified80%
Select PSH-1201	PSH-1201	Condensate export high pressure switch	U-12	Not stated	Not stated	Not stated	Unverified80%
Select PT-1101	PT-1101	Inlet separator pressure	U-11	Not stated	Not stated	4-20 mA	Unverified60%
Select PT-1201	PT-1201	Condensate export discharge pressure	U-12	Not stated	Not stated	4-20 mA	Blocked50%
Select PT-1202	PT-1202	Condensate export header pressure	U-12	Not stated	Not stated	4-20 mA	Unverified80%
Select PT-3101	PT-3101	Cooling water header pressure	U-31	Not stated	Not stated	4-20 mA	Unverified70%
Select PT-3201	PT-3201	Instrument air header pressure	U-32	Not stated	Not stated	4-20 mA	Unverified80%
Select TT-1203	TT-1203	Condensate export temperature	U-12	Not stated	Not stated	4-20 mA	Unverified80%
Select TT-3102	TT-3102	Cooling water supply temperature	U-31	Not stated	Not stated	4-20 mA	Unverified70%

Showing 1 to 13 of 13 instruments

Per page10 25 50 100

Page 1 of 1

Nothing machine-read is verified

A person has to check each row against its source.

Verify one

Where a value comes from

A register row is only as good as the reading behind it. The confidence shown is the weakest link in that chain, not an average: a value read from three documents is as trustworthy as the worst of the three readings, and averaging would let two confident readings hide one bad one.