List of Equipment and Instrumentation Documentation

Here we are listing of necessary Instrumentation Documentation for construction engineering and field maintenace.

List of Equipment and Instrumentation Documentation

a) The Contractor/company shall provide the following instrumentation documentation as a minimum:

ii) Proposed maintenance schedule of all major components, for the design life of the system, and their replacement requirements.
iii) Equipment specifications
iv) Catalogues
v) Data sheets
vi) Test certificates
vii) Deviation schedule
viii) System layout drawings
ix) Functional schematic
x) Bill of material / material take off
xi) Instrument layout & cable tray routing drawings
xii) Instrument calibration procedures
xiii) Cable schedule
xiv) Level Sketches
xv) Instrument & Junction box location plans / layouts
xvi) Loop schematics
xvii) Interconnection diagrams
xviii) Cable termination details
xix) Installation standards / drawings
xx) Pneumatic ESD loop and pneumatic FSD (Fusible Plug) layouts
xxi) Servo / air supply header and distribution drawings
xxii) Redundant cables list
xxiii) Junction box wiring scheme
xxiv) Field calibration and loop checking report
xxv) MCT block sizing and arrangement drawing
xxvi) As-built drawings

Please check also: INSTRUMENT SIGNAL CATEGORIES & INSTRUMENT WIRING COLOR CODING ARAMCO STANDARD

b) The Purchase Specification (PS) submitted for Company‘s review /approval, shall have the following documents as a minimum:

i) Top sheet identifying the document number, and duly signed by the Contractor.
ii) Form B – Deviation schedule – duly signed by the Vendor and Contractor. (Typical, blank Form B is given in Annexure IV)
iii) Form C – List of Commissioning Spares – duly signed by the Vendor and Contractor (Typical, blank Form C is given in Annexure V)
iv) Form D – List of One year spares – duly signed by the Vendor and Contractor (Typical, blank Form D is given in Annexure VI)
v) Form E – Inspection Requirement Table – duly signed by the
Vendor and Contractor (Typical, blank Form E is given in Annexure VII)
vi) Instrument / Equipment specifications
vii) Catalogues
viii) Duly filled data sheets, signed by the Vendor and Contractor
ix) Test certificates
x) Functional schematic (as applicable)
xi) Bill of material / material take off
xii) Instrument calibration procedures
xiii) QA / AC Plan
xiv) The Contractor shall provide a dossier of all hazardous area equipment, containing all information pertinent to the hazardous area work. The dossier shall include all necessary certificates, drawings, calculations, catalogue information, data and specification sheets, etc.
c) Minimum 4 (four) sets of Dossier shall be provided to the Company.
d) The contractor shall be responsible for the authenticity of the drawings & dataprovided by the vendor as sell as sub-vendor(s).
e) Each vendor data items requested above must be identified by the Purchase Order number and equipment tag number located on the cover sheet or first page of said item and in the case of engineering drawings on each and every drawing.
f) Any additional data/drawings required as a result of issuing supplements to a purchase order or during detailed engineering shall be furnished by Vendor and handled in the same manner as the original order.
g) All drawings and literatures shall be in English language and in the Metric Measurement System.
The reproducible drawings, 279mm X 432mm (11‖ x 17‖) size and full size are to be of such quality that clear legible prints can be made with Solid type reproduction facilities.

Instrumentation Documentation Index:

The contractor shall provide an Instrument Index.
The index shall include the information listed below:
• Instrument Tag Number
• Service Description
• Vessel / Line details
• Process fluid
• Operating pressure / temperature / flow / level parameters
• Manufacturer / Model
• Range / Calibrated Range
• Reference Piping And Instrument Diagram Drawing Number
• Data Sheet Number, With Latest Revision
• Location Of Instrument (i.e. Field, Control Panel)
• Remarks Column
The instrument index shall form the basis for documenting all instrumentation and shall be listed in alphanumeric order of instrument tag number and shall contain all relevant information for each instrument. The index shall be based on Microsoft Access.

Please check also: Instrumentation Level Measurement with Calculation Examples

Instrument Data Sheet:

A duly filled data sheet shall be provided for every item of instrumentation equipment, including those which are part of equipment packages, except those items which form part of the bulk material take-off. These specification sheets shall be according to relevant ISA standards and shall contain all information pertaining to a particular instrument including:
• Manufacturer
• Model
• Mechanical Details
• Electrical Details
• Materials
• Process Data (where required)
• Range
Hazardous area classification and certificate details (type of protection, certifying
authority)
• Line or Vessel Number
When a number of items are identical in their requirements, these can be covered by a single specification sheet, provided all tag numbers are clearly listed. The Contractor shall submit his proposed data sheet for Company approval. Data sheets shall be generated using Microsoft Excel.

Instrument Calculations:

The Contractor shall provide certified calculations for instruments, including those listed below:
• Control valve sizing
• Regulator sizing
• Relief valve and rupture disc sizing
• Shutdown valve stroking time
• Flow element sizing
• Restriction orifice sizing and stress analysis
• Thermo well wade frequency
• DP level transmitter ranging
• Intrinsically safe loop calculations, including cable, isolator and field device
parameters
• Cable voltage drop
• Diaphragm seal selection
• Analyzer fast loop time
These shall form part of the relevant Purchase Specification to be submitted during
Detailed Engineering.

Flow Metering Report:

The Contractor shall evaluate the flow metering requirements for the project and shall submit a report describing the selected metering methods, with supporting arguments
and calculations.