MAINTENANCE SERVICE

CONTRACT

REVISION DETAILS

A Issued for Review 11/02/14 Tanya Janjua Paul Andrews Hammad / John Bryce

REV DESCRIPTION DATE PRPD CHKD APPD

Electronic File Name: Doc Size: A4

DOCUMENT DETAILS

EMPLOYER CONTRACT NO. :

PROJECT TITLE :MAINTENANCE SERVICE CONTRACT

EMPLOYER :

CONTRACTOR : Petrofac International (UAE) LLC

CONTRACTOR JOB NO. :

PROJECT DOCUMENT NO. :

CATEGORY : X REVISION NO.: A No. of pages (Incl. Cover Sheet) : 5

DOCUMENT DESCRIPTION : CTR 3 - I01-010A - PRESSURE SWITCH

FUNCTION TEST

Title : I01-010A - PRESSURE SWITCH FUNCTION TEST

Rev : A

Date : 11/02/14

Page : 2 of 5

REVISION DESCRIPTION SHEET

Rev. Para. Revision Description

A Issued for review

Hold No.

Para. Description of Hold

Title : I01-010A - PRESSURE SWITCH FUNCTION TEST

Rev : A

Date : 11/02/14

Page : 3 of 5

1.0 SCOPE

The purpose/scope of this maintenance task is to conduct a function test of the device in order

to assure its accuracy and verify the correct operation of the device and its loop components.

The performance and condition of the device and its loop components will determine whether

further maintenance or calibration is required.

This task should be undertaken by trained personnel only.

2.0 PRE-ROUTINE CHECKS

Check the historical records, any repairs performed since the last maintenance and note any

outstanding repair work.

Check and ensure that the tag / equipment identification is in place, secure, correct and legible

for the equipment under review and that it corresponds with the data in SAP.

If the PM content is incorrect or changes to the frequency, technical content, resources and

scheduling is required, raise SAP change request in accordance with procedures.

Obtain applicable permit to work and carry out a tool box talk prior to commencement of work.

3.0 EQUIPMENT REQUIRED

Pressure calibrator of type appropriate to the instrument under test.

Pressure switch operation and maintenance manual (O&M manual).

4.0 FUNCTION TEST

Notify the operations control centre (OCC) and/or other authorities of the activities to be

performed.

Precautions

Where this instrument forms part of safety or trip system, refer to the appropriate cause and

effect drawings prior to inhibiting all relevant trips. Initiate all relevant inhibits/overrides and

confirm the correct input inhibits/overrides have been applied and logs updated prior to

commencing work.

Title : I01-010A - PRESSURE SWITCH FUNCTION TEST

Rev : A

Date : 11/02/14

Page : 4 of 5

Inspection

Inspect the device for evidence of damage, corrosion and contamination. Check cables and

glands for security / damage and ensure identification is in place, secure, correct and legible.

If equipment is Ex carry out Ex Close Inspection as per work instruction Ex-004A.

Function Test

As-found

a. Isolate the switch from the process medium and depressurise through the vent / drain

point, prior to carrying out calibration.

b. Apply test pressure and verify that the switch trip point operates at the correct setting.

c. On completion of calibration remove pressure test source and close calibration point,

and any vent / drain isolation points.

d. During Switch Calibration verify that the trip and alarm points operate at the correct

settings and that any remote indications of alarms on the control system are correct.

Note: Any differences found on tag number, range, set points etc, between field,

control system and associated documentation needs to be resolved.

e. If the error is within the range tolerance for the instrument then this test has passed

and shall be recorded in SAP as OK.

As-left

f. If the error is outside the range tolerance then this test has failed. The instrument

should then be adjusted and an as-left calibration recorded.

g. Reset alarms, remove any inhibits and confirm that indication have returned to the

healthy state.

h. Ensure that the relevant personnel are informed that the test is complete.

After Test

Ensure equipment is left in a safe condition and cleanup worksite.

Return all equipment to normal operating state, verify operation & notify the OCC and/or other

authorities when tasks are complete.

Close out any permits raised for the work.

Title : I01-010A - PRESSURE SWITCH FUNCTION TEST

Rev : A

Date : 11/02/14

Page : 5 of 5

5.0 REPORTING

Complete the PM Work Order in SAP; raise a Notification for any follow up corrective work and

flag the SAP Review for any proposed changes to the maintenance tasks or data all in

accordance with the SAP process.

Any serious defects must be reported to Line Management and the Instruments Support

Engineer.