LIMA-Z-PRC-1013 Rev 1 Habitat Operation n Dismantling Procedure

7/22/2019 LIMA-Z-PRC-1013 Rev 1 Habitat Operation n Dismantling Procedure

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Project TitleLIMA Subsidence

Remediation Project

Contract No. : STC-0677

Document Number

LIMA-Z-PRC-1013

Authors OrganizationConstruction

PT. Timas Suplindo

Validation2 Years

Expired Date31-05-2015

Pressurized Habitat Operation and Dismantling Procedure

Approval Sheet

Name Title Date Signature

Oto Gurnita Project Manager

Asning Suryo Project Engineer

Akhmad Haryadi Operation Project Representative

Dimas Sasongko Project HSSE Lead

Toni Hadiastono Project Construction Lead

Revision Status

Rev Issue Date By Chk App Issue PurposeOwner

Signature

1 31-May-2013 CAY FW JB Approved For Construction


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PT. PHE ONWJ Pressurized Habitat Operation and Dismantl ing Procedure

LIMA-Z-PRC-1013, Rev 1 Page 1

Revision Log Register

Document Number : LIMA-Z-PRC-1013Document Title : Pressurized Habitat Operation and Dismantling ProcedureRevision : 1

Page Date Revision/Respond PHE ONWJ Reviewer


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PT. PHE ONWJ Pressurized Habitat Operation and Dismantl ing Procedure


Table of Contents

Revision Log Register....................................................................................................................... 1Table of Contents ............................................................................................................................. 21. Introduction ................................................................................................................................... 3

1.1. Background ........................................................................................................................... 31.2. Objectives .............................................................................................................................. 31.3. Scope .................................................................................................................................... 31.4. Reference Document ............................................................................................................ 41.5. Definition ............................................................................................................................... 41.6. Site Adjustment ..................................................................................................................... 4

2. Habitat Operation Procedure ........................................................................................................ 52.1. Habitat Monitoring ................................................................................................................. 5

2.1.1. Habitat External Conditions ........................................................................................... 72.1.2. Air Supply and Exhaust System .................................................................................... 82.1.3. Habitat Internal Conditions ............................................................................................ 8

2.2. Personnel Management ........................................................................................................ 82.3. Communication ..................................................................................................................... 92.4. Rescue Plan .......................................................................................................................... 9

3. Habitat Dismantling Procedure ................................................................................................... 103.1. Partial Dismantling .............................................................................................................. 103.2. Complete Dismantling ......................................................................................................... 11

Appendix A. SafehouseTM

Standard Habitat Checklist and Handover/Release Certificate ........... 12Appendix B. GSM Manual .............................................................................................................. 13Appendix C. Manometer Specification ........................................................................................... 14Appendix D. GDU/GSM Certificates ............................................................................................... 15


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PT. PHE ONWJ Pressurized Habitat Operation and Dismantling Procedure


1. Introduction

1.1. Background

The LIMA Flow Station and associated NUIs are located above the Parigi, Main Massive andTalang Akar formations. The Parigi formation is beneficially owned by Pertamina EP, whereas

Main Massive and Talang Akar are beneficially owned by PHE ONWJ until 2017. The facilitieswere installed in 1973-1974, and significant subsidence has occurred with the Parigi reservoirconsidered to be the primary contributor.

The Current subsidence study indicates that the future of the LIMA Flow station will not bereliable for safety operation and consequently a permanent long term solution is planned byraising the most critical platforms and facilities to ensure continued and safe operation of theLIMA Flow station to the end of the PHE-ONWJ PSC in 2026 and beyond.

The LIMA Flow Station consists of four (4) bridges linked platforms as shown in Figure:

1.1 LIMA Flow Station

PT. Timas Suplindo has been nominated by PHE-ONWJ to perform onshore and offshoreworks including Detailed Engineering, Procurement, Construction, Installation andCommissioning of the Lima Subsidence Remediation Project to remedy the subsidenceproblem by the sue and implementation of a Simultaneous Jacking Deck Raising System toraise the LIMA Compression (LCOM), LIMA Service (LSER) and LIMA Process (LPRO)Platforms as well as the associated bridges and Flare Tower by 4 meters.

To install the deck raising system and the consequential demolition and/or modification workof existing structure, piping and other platform appurtenances, various hot work activities willbe happening when the flow station still in live condition. Pressurized habitat will be utilizedto mitigate the risk of performing hot work in live platform.

1.2. Objectives

This procedure is intended to define the guidelines for the operation and dismantling ofpressurized habitat, for safe and effective operation offshore.

1.3. Scope

This procedure covers the operation of the habitat, after it is approved to use until it finishes.

Also the partial dismantling during the use of the habitat and the complete dismantling afterthe work complete.


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This procedure is not covering the details about the erection/installation of the habitat. It canbe found in Habitat Installation Procedure, Doc. No. LIMA-Z-PRC-1012.

1.4. Reference Document

This procedure is to be read in conjunction/referenced with the following documents :

PHEONWJ-Z-SPE-0102 Specification for General Offshore Construction

PHEONWJ-G-SOP-034 Standard Operating Procedure(SOP) PemasanganSafe House Chamber

PHEONWJ-Q-PRC-0604 Confined Space Entry Procedure

LIMA-Q-PRC-1008 Emergency Response Plan for LSUB OffshoreActivities

LIMA-Q-PRC-1011 Project Hot Work Procedure

LIMA-Z-PRC-1012 Pressurize Habitat Installation Procedure

LIMA-Q-PRC-1012 Confined Space Entry Rescue Plan for Hot WorkActivity Using Pressurized Habitat at LIMA

1.5. Defini tion

Project LIMA Subsidence Remediation Project

Company PT.PHE ONWJ

Contractor or TIMAS PT.Timas Suplindo

CAR Company Authorized Representative

L2RA Level 2 Risk Assessment

ICC Isolation Confirmation Certification

PTW Permit To Work

AA Area Authority

IA Isolation Authority

CSE Confined Space Entry

PGD Personal/Portable Gas Detector

PA Performing Authority

GDU Gas Detection Unit

GSM Gas Sensing Module

1.6. Site Adjustment

This procedure is to give the guidelines for the actual operation on site. However siteconditions may be differ from what has been considered in the writing of this procedure.Therefore, work steps, details, requirements, etc. as stated in this procedure may be changedin accordance with prevailing site condition, as per Superintendent discretion, with the

consultation with CAR and/or OIM. Management of change as per the Companyrequirements will be followed.


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2. Habitat Operation Procedure

After the habitat been constructed completely, it will be pressurized and then the Technicianwill call the AA and PA to carry out joint inspection and after everything is found acceptable,the habitat will be handed over to the PA/AA to be used for performing the hot work. Thefollowing procedure will be followed subsequently.

2.1. Habitat Monitoring

Habitat will be monitored at all times by Habitat Technician and Firewatcher(s) Anyproblems which makes the habitat cannot function safely will be reported to theSuperintendent/CAR immediately and the work stopped.

a) The air inlet line is equipped with GDU (Gas Detection Unit), with capability toautomatically shut off the air inlet when it detects the presence of flammable gasand/or H2S. When this happens, the Habitat Tech and the Firewatcher shallensure the workers stop the work their doing inside the habitat immediately andget out from the habitat.

Gas Detection Unit at Air Inlet LineSubsequently with coordination with PA and AA, the Habitat Tech willtroubleshoot the problem, by checking with gas detector, the air intake point andcontinue checking along the inlet air line, till the GDU location.

If no gas as indicated earlier by the GDU found, the GDU will be replaced with thespare unit while the first GDU being checked for faults, and the habitat operationwill be resumed.

If the gas as indicated by the GDU is found, Habitat Tech will coordinate with PAand AA to move the air intake point and/or re-route the air inlet line to prevent therecurring of the gas into the line. If relocating or rerouting is still not solve theproblem/not possible, the Habitat Tech will inform PA and AA, and they will

coordinate with Superintendent and SC for other course of action.


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b) The pressure inside the habitat shall be maintained higher by at least 25 Pa thanthe ambient pressure. Habitat Tech will monitor that by looking at the physicalcondition of the habitat, which visually looks inflated, and as well as by checkingthe pressure through the manometer.

Habitat in Inflated Condition

Manometer

If the habitat looks deflated or loosing pressure, Habitat Tech and Firewatchershall ensure the work inside the habitat is stopped immediately and the workersto go out from the habitat.

Habitat Tech will check the integrity of the habitat and the inlet line ducting, andalso the condition of the inlet fan (s). If the integrity and the fan(s) condition aregood, additional booster fan may be added to ensure adequate pressure ismaintained in the habitat.

c) PGD which is carried by the Firewatcher inside the Habitat will detect thepresence of flammable gas, toxic gas and the Oxygen concentration inside thehabitat. If the PGD alarm set off, the Firewatcher shall ensure the workers stoptheir work immediately and go out of the Habitat.

AGT will be called to confirm what the Firewatcher found. If it is confirmed,similar procedure as mentioned in Point (a) above will be followed. The GDU will

be replaced with the spare unit, as it shown failed to detect the gas when it still onthe inlet line.


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If AGT checks show totally different result, the PGD which is carried by theFirewatcher will be replaced with the spare one, while the main one is beingchecked for faults.

If the problem is the Oxygen concentration, LEV (Local Extract Ventilator) and/orbooster fan added in the inlet line may be added. After the modification, the

Oxygen concentration will be checked again prior to the resuming of the workinside the Habitat.

LEV sucking the welding fumed) Habitat Tech will continuously checking the condition of the inlet fan(s). If a

certain fan is found not in prime condition, it will be replaced with the spare fanwhile it being serviced. The work inside the habitat will be stopped temporarily for

this change of fan. Therefore, the change will take place in the time which willcause least effect on the progress of the work eg. Shift change time.

Standard checklists below shall be used to inspect the Habitat at the beginning of the shiftand/or after modification/partial dismantling & reinstate have been carried out :

2.1.1. Habitat External Conditions

No. Checklist Description Responsible Check Comments1 Has the worksite been checked for any new hazards? Habitat Tech

2 Have all combustible materials been removed from the area? Habitat Tech

3 Is the habitat large enough to segregate any hot work from the sides,roof and deck of the habitat? Is there pre or post heat treatmentequipment in use?

Habitat Tech

4 Has the habitat been adequately protected from any potentialdropped objects?

Performing Authority

5 Are all compressed gas bottles, welding plant etc. sited in a safearea, away from the habitat?


6 Are all cables protected from potential damage and do not presenttrip hazards

Habitat Tech

7 All electrical supplies into the habitat to be isolated out side of thehabitat

Habitat Tech

8 Are hot work controls in place? (fire watcher, water/foam hoses laidout, portable extinguishers, radios, portable gas monitors)


9 If designated as a Confined Space, are the appropriate controls inplace

Performing authority

10 Are worksite safety barriers and restriction notices in place? Performing Authority

11 Are all other work parties in the vicinity aware of hot work activity? Performing Authority

12 Has adequate escape provision been made? Are habitat escaperoutes clearly marked and linked to platform escape routes?


13 Does the habitat require additional protection temporary (wind wall,

watersheds etc)

Habitat Tech


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2.1.2. Air Supply and Exhaust System

No. Checklist Description Responsible Check Comments1 Is the safe air supply taken from a safe area, supplying clean air? Area Authority

2 Does the extract ducting exhaust any fumes into a safe area? Area Authority

3 Are the air supply sources and extract outlet ducts at least 5 metersapart?

Habitat Tech

4 Is all ducting intact, and clear of all access ways and unlikely to be

affected or damaged by other activities?

Habitat Tech

5 Is ducting secured to the dampers to prevent accidental separation? Habitat Tech

6 Is the exhaust ducting suitable for the task? If LEV is required, is thislocated close to the hot work area?

Habitat Tech

7 Has the Gas Detection Unit been installed in the most suitablelocation and function tested.

Habitat Tech

8 Check supply and extract ducts are clear of obstructions Habitat Tech

2.1.3. Habitat Internal Conditions

No. Checklist Description Responsible Check Comments1 Is the floor of the habitat protected with fire blanket and/or fire proof

panels?Habitat Tech

2 Are escape panels highlighted with fluorescent tape? Are emergencyexit signs in place?

Habitat Tech

3 Can the product of welding, burning and grinding be contained andprevented from contacting habitat surfaces. Galvanised sand bucketif required.

Habitat Tech

4 Are heating and welding cables segregated? Performing Authority

5 Is the temporary and emergency lighting adequate and functioning? Performing Authority

6 Have all combustible materials been removed or protected with fireblanket/silica?

Habitat Tech

7 Has radio contact with the control room been established? Performing Authority

8 Has the Habitat Entry Tag been updated and put into place? Habitat Tech

9 Habitat pressurisation has been checked and manometer functioningcorrectly (min. 25 Pa above ambient)

Habitat Tech Pressure =

10 Has the habitat been checked for potential dead spaces? gasmonitoring equipment in place


11 All earth-bonding (fan, door frame) has been secured in placeAnd continuity checks completed

Habitat Tech

12 The permit to work and other supporting documents have been

authorised and a copy is available at the worksite

Habitat Tech/

Performing Authority13 Does all ancillary electrical equipment have suitable certification? Habitat Tech/


14 Have the habitat and any non-IS enclosure within the habitat such asa welding control unit been tested for gas by an Authorised GasTester and are confirmed as gas-free.

Habitat Tech/PerformingAuthority/ AGT

2.2. Personnel Management

1 Fire watcher equipped with PGD will be stationed inside the habitat.

1 Habitat Tech will be stationed outside the habitat, to monitor the functionality of thehabitat and as well as fire watching outside. 1 Technician may oversee several habitats,depending on the proximity of the habitat locations and the ease of access from onehabitat to the other. The habitat head tech/supervisor with agreement from CAR will

determine the assignment of the habitat tech, on case by case basis. Maximum number of personnel working inside the habitat shall be limited based on the

following :

o Obstructing structure or equipment inside the habitat which affecting the availablespace inside the habitat for safe and effective working.PA and Fitter Foreman/Welder Foreman/Senior Welder/Fitter will decide on sitehow many people allowed to work inside the habitat. Firewatcher inside thehabitat and the Habitat Technician will assist to monitor/ensure the number ofpeople inside the habitat is not exceeded.

If the personnel inside the habitat already at maximum limit, while additionalpersonnel is required to do a certain work/inspection inside the habitat for shortperiod of time, the personnel who already inside the habitat, will be swapped with

this additional personnel, so that the total number of personnel inside is not


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exceed the maximum limit. In any case, the Firewatcher shall remain inside thehabitat.

Should the additional personnel is required to do work inside the habitat forprolong duration, the habitat will be modified to accommodate the addition.

o Quality of air inside the habitat.

The concentration of oxygen inside the habitat will be continuously monitored bythe Firewatcher who is stationed inside the habitat, with PGD. The detectoralarm will be set at the level as per the Confined Space Entry practice. When thealarm set off, the Firewatcher inside the habitat will reduce the number of peoplein the habitat and/or habitat will be modified to have more LEVs (Local ExtractionVentilator) and/or booster fan.

2.3. Communication

PA who will in charge with the work will be equipped with the handheld radio. He will bepresent at all times to oversee the work. He will keep close communication with the AWBradio room and also LIMA flow station radio room. He will be the main point of contact forthe Superintendent/OIM in regards of the work.

As the Habitat Tech will be in proximity of the work location with PA, the communicationwill be via direct verbal communication.

Even though habitat have some characteristics of confined space, to get in/out of thehabitat is way less difficult/risky compare to common confined spaces case (eg. Insidetank, vessel, etc.). Therefore the communication between the Firewatcher inside thehabitat with PA/Habitat Tech, will be via direct verbal communication.

2.4. Rescue Plan

Each habitat will have escape panel, which will be used for emergency exit. The escapepanel will be placed closest to the access which goes to the platforms escape route.

Escape Panel Further details on the Rescue Plan can be found in.Document No LIMA-Q-PRC-1012.


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3. Habitat Dismantling Procedure

3.1. Partial Dismantling

The required material (structural, piping, Versabar items, etc.) may not be able to put insidethe habitat from the beginning. Therefore, the habitat may require to be partially dismantled

to bring in the material. The top and/or side panels of the habitat can be opened partially. Firstly, the sealing

Velcro of the seam zip at the particular panels will be opened, and then the zip.

Sealing Velcro

After the opening made, then the item will be brought in into the habitat with the craneand/or chain blocks. The following is the illustration :

Sample Steps Bring in Beam Inside the Habitat from The Roof Panel

After the sealing around the rigging installed, the opened panels will be closed back.Then the habitat will be pressurized again and will be checked prior to use as perStandard Checklist in Section 2.

AGT wi ll need to check no flammable gas presence on the non-IS equipmentenclosed by the habitat, prior to the hot work commencing.


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3.2. Complete Dismantling

After the work complete, the workers will take their equipment out from the habitat andmake the habitat location safe for dismantling work. PA and Habitat Tech will inspect toensure this has been done.

AA, PA and Habitat Tech will sign off the Release of Habitat Certificate.

Dismantling work will be as per the Habitat Installation Procedure, Document No. LIMA-Z-PRC-1012, with the work steps in reversed sequence.

Once dismantled, the materials/equipments will be moved to the next location of use orgathered nearby the crane loading area, for easy transferring back to the barge.


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Appendix A. SafehouseTM

Standard Habitat Checkl ist andHandover/Release Certi ficate


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Appendix 2: Standard habitat checklist.

The integrity ofhabitats is crucial to segregate hot work from hazardous areas. The habitat is essential to ensure safety for the persoplatform. This checklist and the guidance notes must be used to ensure that the habitat is proven fit for its intended purpose.

Definitions:

Area Authority: Operators Authority for Issuing Permit to work e.g. Production Supervisor

Performing Authority: The Person who is responsible for accepting the Permit to Work e.g. Construction ForemanSafehouse: The Safehouse Habitats Technician or accredited sub-contractor

1. Habitat external conditions

No. Checklist Description Responsible Check Comments

1 Has the worksite been checked for any new hazards? Safehouse

2 Have all combustible materials been removed from the area?

Safehouse

3 Is the habitat large enough to segregate any hot work from the sides, roofand deck of the habitat? Is there pre or post heat treatment equipment inuse?

Safehouse

4 Has the habitat been adequately protected from any potential dropped

objects?

Performing

Authority5 Are all compressed gas bottles, welding plant etc. sited in a safe area, away

from the habitat?Performing

Authority

6 Are all cables protected from potential damage and do not present trip

hazardsSafehouse

7 All electrical supplies into the habitat to be isolated out side of the habitat Safehouse

8 Are hot work controls in place? (fire watcher, water/foam hoses laid out,portable extinguishers, radios, portable gas monitors)

Performing

Authority

9 If designated as a Confined Space, are the appropriate controls in place Performing

authority

10 Are worksite safety barriers and restriction notices in place? PerformingAuthority

11 Are all other work parties in the vicinity aware of hot work activity? PerformingAuthority

12 Has adequate escape provision been made? Are habitat escape routes clearlymarked and linked to platform escape routes?

Performing

Authority

13 Does the habitat require additional protection temporary (wind wall,watersheds etc)

Safehouse


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Part 2, Air Supply and Exhaust System

The ventilation is essential as a pressurization barrier and to maintain suitable working conditions.


1 Is the safe air supply taken from a safe area, supplying clean air? Area

Authority

2 Does the extract ducting exhaust any fumes into a safe area? AreaAuthority

3 Are the air supply sources and extract outlet ducts at least 5 metersapart? Safehouse

4 Is all ducting intact, and clear of all access ways and unlikely to beaffected or damaged by other activities? Safehouse

5 Is ducting secured to the dampers to prevent accidental separation? Safehouse

6 Is the exhaust ducting suitable for the task? If LEV is required, is thislocated close to the hot work area?

Safehouse

7 Has the Gas Detection Unit been installed in the most suitable locationand function tested.

Safehouse

8 Check supply and extract ducts are clear of obstructions Safehouse

Part 3,Habitat internal conditions

Monitoring of hot work within habitats with combustible construction materials requires vigilance and specific precautions, thisdocument, the particular application may require a specific checklist applicable to identifying the hazards and risks for that task.


1 Is the floor of the habitat protected with fire blanket and/orfire proof panels?

Safehouse

2 Are escape panels highlighted with fluorescent tape? Are

emergency exit signs in place?

Safehouse

3 Can the product of welding, burning and grinding becontained and prevented from contacting habitat surfaces.Galvanised sand bucket if required.

Safehouse

4 Are heating and welding cables segregated? PerformingAuthority


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5 Is the temporary and emergency lighting adequate and

functioning?Performing

Authority

6 Have all combustible materials been removed or protected

with fire blanket/silica? Safehouse

7 Has radio contact with the control room been established? Performing

Authority

8 Has the Habitat Entry Tag been updated and put intoplace?

Safehouse

9 Habitat pressurisation has been checked and manometer isfunctioning correctly

Safehouse Pressure =

10 Has the habitat been checked for potential dead spaces? isgas monitoring equipment in place

Performing

Authority

11 All earth-bonding (fan, door frame) has been secured inplaceAnd continuity checks completed

Safehouse

12 The permit to work and other supporting documents have

been authorised and a copy is available at the worksiteSafehouse/

Performing

Authority

13 Does all ancillary electrical equipment have suitable

certification?Safehouse/

Performing

Authority

14 Have the habitat and any non-IS enclosure within thehabitat such as a welding control unit been tested for gasby an Authorised Gas Tester and are confirmed as gas-free.

Safehouse/

Performing

Authority/ AGT

This standard checklist is for use where hot work is being performed. It is to be used as a checklist after initial construction and checklist and handover certificate must be completed prior to hot work and the checklist should be repeated at the beginning of each The Area Authority, Performing Authority and Habitat Technician will jointly inspect and authorise the use of the habitat prior to

after any modification. NB. If there are a number of identical habitat applications these procedures must be followed on each It is the responsibility of the Habitat Technician or other authorised, trained person to monitor the habitat integrity on a continuous b

It is the clients responsibility to ensure that the integrity of the habitat cannot be compromised due to the proximity of chemmaterial. Controls should be put in place following a suitable and sufficient risk assessment.


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Habitat Handover Certificate.

The pressurised habitat is now ready for the task as described below.

Warning:no unauthorised modifications may be carried to the habitat out after the habitat has been signed as

Activity Job Card

Reference

Area / Module

Name Signed Date Time

Area Authority


Habitat Technician or designated

person responsible

Release of Habitat Certificate.

The task for which the habitat was installed is now complete and the habitat may be dismantled.

Activity Job Card

Reference

Area / Module

Name Signed Date Time

Area Authority


Habitat Technician or designated

person responsible


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Appendix B. GSM Manual


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SafeHouse

Gas Sensing Module

(GSM) ManualVersion 1.0 for Model 1.1

Safe-Ex

4/16/2010


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ContentsIntroduction ............................................................................................................................................ 2

Company ............................................................................................................................................. 2

Gas Sensing Module ............................................................................................................................ 2

Methane Gas Sensor ........................................................................................................................... 2

H2S Sensor .......................................................................................................................................... 3

Remote Flasher Unit ........................................................................................................................... 3

Remote Gas Sensor ............................................................................................................................. 3

Certificates: ............................................................................................................................................. 4

Manufacturer's Release for Use Form .................................................................................................... 5

GSM Label ............................................................................................................................................... 6

Guidance Checklist .................................................................................................................................. 7

Installation and Start-up Procedure........................................................................................................ 8

Fault Indication and Diagnosis ................................................................................................................ 9

Flammable Atmosphere Detected by Internal Detector .................................................................... 9

Flammable Atmosphere Detected by Remote Gas Sensor ................................................................. 9

Fault Condition .................................................................................................................................... 9

Maintenance ......................................................................................................................................... 10

Guidance for Emergency Maintenance ............................................................................................ 10

Cleaning Optics (Methane Sensor) ............................................................................................... 10

Checking Cables and Bulb/Fuse Replacement inside the Exd Enclosure ...................................... 10

Regular Visual Inspection Sheet ........................................................................................................ 11

GSM Annual Maintenance Checklist ................................................................................................. 12

Appendix A - Completed Regular Inspection Sheets ............................................................................ 16Appendix B - Completed Annual Maintenance Checklists .................................................................... 17


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Introduction

CompanyThe GSM is a product commissioned by Safehouse and designed and manufactured by Safe-Ex. Safehouse can be

contacted using the details below if any assistance or maintenance is required for the GSM or related products.

Safehouse Ltd

Units 2 & 3

Bowbridge Works

Dundee

DD3 7RF

Tel: 01382 814122

Email: [email protected]

Safe-Ex Ltd

Unit 1 Manor Park

Windsor Road

Bedford

MK42 9HW

Tel: 01234-345676

Email: [email protected]

Gas Sensing Module

The SafeHouse Gas Sensing Module (GSM) is designed to ensure that ambient air being ducted into a pressurised

enclosure is free of flammable gases and that it is hence safe to start / continue operation within the welding

enclosure. The GSM is a dual voltage system that consists of an air ducting assembly equipped with a damper which

can automatically close the duct if a gaseous hazard is detected. Two gas sensors are sited in front of the damper

which detect the level of flammable gas in the ducted air as well as Hydrogen Sulphide (H2S). If the flammable gas

level rises above 10% of the lower explosion limit (LEL) of methane then the GSM automatically stops the

throughput of air, illuminates a red flashing beacon and sets off a sounder alarm to warn of a concentration of a

potentially dangerous gas. Once the damper is closed it cannot be re-set until the flammable gas concentration has

been dispelled.

Sensing of the presence of H2S in the ducted air flow is provided by locating a second gas sensor upstream of the

damper and adjacent to the methane gas detector. Again this will set off the alarm system and close the damper if

an H2S gas concentration of greater that 5ppm is detected. The system cannot be reset until the toxic gas

concentration has been dispelled.

Although sold as a dual frequency, dual voltage unit, the device can actually take any voltage from 88-264VAC and

any frequency from 47-63Hz.

The GSM has three sockets on board, S1, S2 and S3. S1 connects to Remote Flasher Units, S2 connects to Remote

Gas Sensors and S3 connects Welding Control Unit. An optional fourth socket S4 can also be fitted to provide a

power supply to tools or other equipment. The socket will match the voltage and frequency of the supply used to

power the GSM.

Methane Gas Sensor

The GSM uses a Simrad infra-red (IR) methane gas sensor for detection and can operate from -40oC to +65

oC in up

to 100% humidity. The device is set to alarm at 10% LEL of methane and has an accuracy of 3% between -20oC and

+45oC. The sensor was chosen for its stability, low maintenance, its dual wavelength dual path optics and its fast

response rate.


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3

H2S Sensor

The sensor used is a GDS Technologies H2S sensor which has a range of 0-50ppm (parts per million). The device is

set to alarm at 5ppm

Remote Flasher Unit

The remote flasher unit has a flashing lamp with its own housing and 10m length of cable. It is used either within

the enclosure or externally in a location that will allow it to be seen easily in the event of a gas release.

Remote Gas Sensor

The remote gas sensor uses the Simrad methane gas sensor above with its own housing and a 10m length of cable.

The additional sensor is used if there is high risk area within the vicinity of the habitat.


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4

Certificates:

EC Declaration of ConformityWe: Safe-Ex LtdOf: Unit 1 Manor Park

Windsor Road

Bedford

Bedfordshire

MK42 9HW

UK

Declare that the Safe-Ex Gas Sensing Module (GSM)has been assessed and approved by Notified Body

Baseefa 1180 Buxton UK:

Baseefa LtdRockhead Business Park

Staden Lane

Buxton

Derbyshire

SK17 9RZ

for use in hazardous areas in compliance with European ATEX Directive 94/9/EC and has been issued with

EC-Type Examination Certificate Number:

Baseefa10ATEX0087X

The Safe-Ex GSM has been designed and manufactured/assembled under Safe-Ex Ltd Quality

Management System which is approved under Quality Assurance Notification (QAN) number:

Baseefa ATEX 6535

and is in accordance with BS EN 9001:2008; and the Essential Health and Safety Requirements of Annex II

to European ATEX Directive 94/9/EC, and complies with the relevant sections of the following

specifications:

EN60079-0: 2006 EN60079-1: 2004 EN60079-7: 2003 EN60079-11: 2007 EN13463-1: 2006

Compliance of the GSM equipment is indicated by carrying markings which include:

II 2G Ex d e ia m IIB T4 (Tamb = -20C to +50C) 1180

Depending on the configuration, an m Protection Concept indicator may be included in the marking or it

may be obliterated.

Signed: Name: Dr Morley Jones

Position: General Manager of Safe-Ex Ltd


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5

Manufacturer's Release for Use Form

Functional

Testing

1. Ensure Ex JB bolts are correct length and type & torqued up evenly.

2. Check gap between lid and base with 0.2mm feeler gauge (NO GO)

3.

Power up

4. Red Lamp 1sec flash for 1 min after power up

5. Red Lamp goes to continuous after 1 min

6. Press Green RESET Push ButtonCheck Green lamp ON, Red Lamp

OFF and Damper opens.

7. Apply Test GasCheck Gas response/alarm (15% LEL methane &

10ppm H2S):

a. Beacon/Sounder activates

b. Damper closes

c. Socket 1: Remote Beacon activates (24Vdc signal)

d. Socket 2: If fitted - Check GSM goes to alarm when gas tested by

repeating this test

e. Socket 3: If fittedCheck 24Vdc Control signal is removed

f. Purge with Clean Air to clear Test GasPress Green RESET PB -

Check Green Lamp ON , Red Lamp OFF & Damper reopened

H2S/

PAT Test Continuity ( less than 0.1):

Pass/Fail

Insulation (Meter 1. M):

Pass/Fail

Fuse (1 Pass/0.0 Fail):

Pass/Fail

PAT Tested

Label Applied

Marking &

Labelling

1. Attach Quick Start-up Guide to side rails

2. Apply ATEX Label to main body complete with Serial Number

3. Ensure all labels fitted to GSM

4. Ensure m indication on ATEX Label is removed ifBurkert Solenoid

Valvenot fitted

Final approval for Despatch :

Customer SafeHouse

Safe-Ex Order

Despatch Ref. Despatch Note: DN Date:


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6

GSM Label

The GSM label shown above should be displayed on each unit. The label contains information on:

Manufacturer

Manufacturer's address

Unit type

Serial number and year of manufacture

Certificate number

Certification information

Temperature range

Power supply rating

Ex and CE markings


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7

Guidance Checklist


1 Has the GSM had a regular visual inspection since being

returned from last use?

Installation

Technician

2 Is the safe air supply taken from a designated safe zone,supplying clean air?

AreaAuthority

3 Is all ducting intact, and clear of all access ways and unlikely

to be affected or damaged by other activities?

Installation

Technician

4 Is ducting well secured to the GSM to prevent accidental

separation?

Installation

Technician

5 Has the GSM or a Remote Beacon been located within audio

and / or visual range of the work area?

Installation

Technician

6 Check supply and extract ducting are clear of obstructions Installation

Technician

7 Check access to mains supply is unhindered and supply cablerun is suitably protected

InstallationTechnician

8 Check GSM mains supply cable is not damaged and correct

plug is fitted

Installation

Technician

9 Check that the protection flaps on any unused Outlet Socket

(S1, S2, S3, S4 if fitted) are correctly closed and sealed off.

Installation

Technician

10 Is there any obvious visual damage that could impair

function?

Installation

Technician

11 Ensure that the GSM has been properly earthed Electrically

Competent

Person

.


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8

Installation and Start-up Procedure

The GSM is to be installed on the inlet to the

enclosure either upstream or downstream from the

pneumatic fan. The GSM is connected via the spigot

either side to 300mm flexi-ducting. The ducting is then

connected to the pneumatic fan and the volume

control damper (VCD) of the enclosure in the desired

configuration.

If any of the optional remote units are to be used they

should now be placed. Once put in a suitable position

the remote unit's cord should be fully unwound and

connected to the GSM in the corresponding socket.

Remote Flasher Units are connected into socket S1,

Remote Gas Sensors are connected to socket S2 and

the Welding Control Unit is connected into socket S3.

The GSM should then be started as described below:

1. Insert one of the dual voltage power supply plugs into the corresponding power supply outlet.

1.1.

The red "System Active" indicator light on the control box flashes intermittently at one flash per second for

one minute whilst the gas sensor calibrates.

1.2.After one minute the red "System Active" indicator illuminates continuously indicating that the GSM is now

ready to be used.

2. Press the green "RESET" button on control box.

2.1.The red "System Active" indicator light extinguishes.

2.2.Damper winds to open position.

2.3.The green "Damper Open" light on the control box is continuously illuminated.

3. It is now safe to vent air through the GSM ducting into the welding enclosure.

Figure 1 - Suggested configuration


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9

Fault Indication and Diagnosis

Flammable or toxic Atmosphere Detected by Internal Detector

In the event of the gas sensors within the GSM ducting detecting a concentration of gas above 10% LEL of methane

or 5ppm H2S, the following sequence of events occur:

1. The damper springs to the closed position, cutting off the flow of the potentially explosive atmosphere into the

enclosure.

2. The sounder/beacon is activated to give a visual and audible warning that an unsafe situation pertains. Any

attached Remote Flasher Units are also activated.

3. If connected the signal to the Welding Control Unit is stopped, automatically terminating power to all

connected equipment.

4. The green "Damper Open" indicator on the control box is extinguished.

5. The red "System Active" light on the control box is constantly illuminated.

If this event occurs then gas has been detected and corrective action should be taken.

Flammable Atmosphere Detected by Remote Gas Sensor

In the event of a Remote Gas Sensor detecting a concentration of gas above 10% LEL of methane the following

sequence of events occur:

1. The damper springs to the closed position, cutting off the flow of the potentially explosive atmosphere into the

enclosure.

2. The sounder/beacon is activated to give a visual and audible warning that an unsafe situation pertains. Any

attached Remote Flasher Units are also activated.

3. If connected the signal to the Welding Control Unit is stopped, automatically terminating power to all

connected equipment.


5. The red "System Active" light on the control box is constantly illuminated

If this event occurs then gas has been detected and corrective action should be taken.

Fault Condition

In the unlikely event of the IR gas sensor developing an internal fault which results in discrepancies between the

two sensor readings then a fault condition is signalled to the control box with the following events occurring:

1. The damper springs to the closed position, cutting off the airflow into the welding enclosure


3. The red "System Active" light on the control box rapidly flashes.

If the red "System Active" light flashes at any time after the initial one minute start-up period then a sensor fault is

indicated.The GSM should not be used until the fault is rectified.


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10

4.

Maintenance

This section of the manual gives advice on maintaining the GSM and contains forms to complete upon completion

of regular inspection and annual maintenance

The regular visual inspection form should be photocopied and completed each time the device is returned from

site. The completed form should be stored in Appendix A.

The annual maintenance form will be completed after each annual maintenance, and a copy will be kept in

Appendix B.

Guidance for Emergency Maintenance

The following guide covers areas of emergency maintenance. Cleaning the optical sensor in the gas detector can be

carried out by any technician. Replacing bulbs, fuses or checking connections should only be carried out by qualified

personnel with experience of opening explosion proof enclosures. Any maintenance beyond this should be done

offsite at SafeHouse.

Cleaning Optics (Methane Sensor)

The only emergency maintenance advised for technicians is the cleaning of the optical sensor of the methane gas

sensor if a fault signal occurs. In this situation the optics can be accessed by removing the 13mm bolts on the GSM

ducting then unscrewing the black plastic cover attached to the Sensor housing. Once accessed the optics should be

cleaned using a lint free cloth until all contaminants are removed. Refit the cover and remount the gas detector

onto the GSM ducting after optics cleaning has been completed.

Checking Cables and Bulb/Fuse Replacement inside the Exd Enclosure

To check the bulbs, fuse or cables the explosion proof enclosure must be opened. This must only be carried out by

qualified personnel in a designated safe zone.

When opening the enclosure care must be taken not to damage any internal cables and to protect the faces of the

lid and box. The enclosure should never be prised opened with a tool, the lid should just lift, in the event that it

does not, the lid should be gently nudged in a sidewards/lateral direction with a rubber mallet to loosen it.

Damaging any of the faces will interfere with the flame path causing the box to not function safely. If this happens

the GSM must not be used again until the box has been replaced. Care should be taken to protect the mating facesof the lid and base of the enclosure when open.

When closing the explosion proof enclosure care should be taken to ensure that none of the cables are trapped, the

faces of the box and lid are clean and have been re-greased (silicon grease) and that all bolts have been replaced

and tightened evenly by hand in an opposing manner and finally torqued up to 16Nm with a suitable torque

wrench. Once sealed the box should be checked with a feeler gauge to ensure that the gap is less than 0.2mm

between the faces.


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11

Regular Visual Inspection Sheet

GSM Serial No. Date of Inspection Inspected By Details Logged on

Maintenance

Register

I tem Description Pass Fail Comments

Unit internals are free from any accumulation

of dust/debris and clean

Trolley Wheels are in good condition

Wheel split pins are in good condition

GSM body is securely mounted on trolley

frameGSM frame is in good condition : no sharp

edges

Upstand protection lugs are in good

condition.

Certification plate is intact and legible

PAT Test label is in place and in date

(minimum 2 months before re-test)

All external earth cables are in place and

securely attached and the earthing point label

is attached and legible

Power cables are in good condition

Plugs are in good condition

Sounder and beacon are in good condition

Actuator box is in good condition and cover

is in place

Control box is in good condition.

Control box screws are in place.

Red lamp is in good condition

Green lamp is in good condition

Reset button and its cover is in good

condition and undamaged

Manual is attached to unit

Function Test results

Sounder Beacon Green Lamp Red Lamp Actuator Gas sensor

Secs.

Signed by__________________________________ Date____________


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12

GSM Annual Maintenance Checklist

Customer: SafeHouse Habitats Equipment S/N: GSM

Attention: Safe-Ex Order No:

Check

No Inspection DetailsSatisfactory Non-Compliance Not

Checked

Repaired Not

Applicable

General

1 There are no visible unauthorised modifications

2 Apparatus is free from corrosion or physical damage

3 Apparatus carries the correct circuit identification, where

applicable.

Note: Positively identify apparatus with circuit to ensure the

correct isolation.

4 Check there are no solid obstructions or obstacles within

30mm of the flange or opening (for IIB group)

5 Check Certification Label is legible and firmly attached to GSM

6 Does the equipment operate/function correctly:

1. Power up



4. Press Green RESET Push ButtonCheck Green lamp ON,

Red Lamp OFF and Damper opens.

5. Apply Test GasCheck Gas response/alarm (15% LEL

methane & 10ppm H2S if fitted):


b. Damper closes

c.

Socket 1: Remote Beacon activates (24Vdc signal)d. Socket 2: If fitted - Check GSM goes to alarm when

gas tested by repeating this test

e. Socket 3: If fittedCheck 24Vdc Control signal is

removed

f. Purge with Clean Air to clear Test GasPress

Green RESET PB - Check Green Lamp ON , Red

Lamp OFF & Damper reopened

Methane H2S Methane H2S

Equipment

7 All enclosures are securely supported so that no weight is

taken by the cables or conduit connections

8 Check electrical protection and fuses are satisfactory

9 Check push button(s) operate freely without sticking and that

the protective cover is in place and is not damaged or split

10 Check enclosure bolts are all present, of the correct type and

length, and are tightened to the correct torque (M8 = 16Nm)

11 Check all electrical connections are tight and electrical

clearances are satisfactory

12 Check that the flame path between the Exd enclosure lid and

base is free from any damage or corrosion and that here is no

evidence of any indentation, filing marks, scoring, abrasion or

paint on these mating surfaces.

NOTE:

1. Ensure these faces are protected whilst the

enclosure is open.

2. Use only non-corrosive cleaning fluids such as IPA

(isopropyl alcohol) for cleaning these surfaces

13 When re-closing the enclosure, ensure that the flanges are

coated thinly with DC4, or equivalent, silicone grease.

This grease should also be used on any threaded items such


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13

as glands where they are screwed into the mating Ex housing

or enclosure.

Check

No Inspection DetailsSatisfactory Non-Compliance Not Checked Repaired Not

Applicable

14 Have the correct terminals been used (Approved terminals

carry an Exe or Exn marking)

15 Has only one wire per terminal clamp been adhered to?

16 Are all unused cores terminated into spare terminals?

17 Are all unused terminal screws tightened down?

18 Are the terminal mouldings free from cracks, breakages and

damage?

19 Has the conductor insulation been maintained right up to the

terminal clamp and has the correct size of conductor been

used for each terminal? (In accordance with the Certificate,

drawing and current rating)

20 If flexible conductors have been used, is there any whiskering

of the conductors?

21 Have steps been taken to ensure that the conductors are not

cleated together in such a way as to increase the temperatureof an individual conductor?

22 Check Lamps and bulbs/LEDs for firm fixing and location in

housings and check sealing of Lamp Cover to enclosure is

intact and sound with no evidence of erosion or softening of

any epoxy/cement/ sealant used.

23 Check the condition of any gaskets used for weatherproofing

where they form part of a certified enclosure.

24 Check lamp rating and type are correct

Cables Glands and Accessories

25 Make certain there is no damage to the cables, cable sheaths,

inner insulation/core insulation.

NB: Check that cable core insulation has not been cut during

installation

26 Check cables are certified to BS6883/ BS7917 Marine

Specification

27 Ensure that cables and cores are correctly identified at both

control box/enclosure and equipment ends.

NB: Make sure allelectrical connections are secure.

28 Check that all glands/adaptors/reducers/blanking

plugs/accessories are complete and undamaged

29 Check that all glands/adaptors/reducers/blanking

plugs/accessories are of the correct type and certified.

Make sure all cable cores conductors have crimped

connections fitted and they are the correct size for the

application.

30 Check all cable are adequately cleated and protected to

prevent damage and/or snagging.

Earthing

31 Check that earthing is satisfactory and earth points clearly

labelled

NB: All earth points should be cleaned, secured and

lubricated

32 Has a maximum of 2 cables per earth been adhered to?

Protective Covers and Guards

33 Check that any guards used are correctly fitted and without

damage and secured.

Push Button Protective Cover


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14

Actuator Cover


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15

Check

No Inspection DetailsSatisfactory Non-Compliance Not Checked Repaired Not

Applicable

Environmental / Ingress Protection

34 Check that equipment is adequately protected against

corrosion, weather, vibration and other adverse factors.

35 1.

Check that there is no undue accumulation of dust, dirtor rust. (NB: Accumulations reduce heat dissipation and

can result in higher than permitted surface

temperatures.)

2. Check and clean Gas Detector Optics

Post Maintenance Final Assembly and Test

36 Ensure all GSM equipment is correctly located and fixed in

place, all plugs, sockets, cables & glands are correctly

fitted/refitted, and all earthing leads are in place and

connected to the earthing point.

37 Perform GSM Start-Up Procedure and check response to test

gas:

1. Power up



4. Press Green RESET Push ButtonCheck Green lamp

ON, Red Lamp OFF and Damper opens.

5. Apply Test GasCheck Gas response/alarm (15% LEL

methane & 10ppm H2S if fitted):


b. Damper closes

c. Socket 1: Remote Beacon activates (24Vdc signal)

d. Socket 2: If fitted - Check GSM goes to alarm when

gas tested by repeating this test

e. Socket 3: If fittedCheck 24Vdc Control signal is

removed

f.

Purge with Clean Air to clear Test GasPressGreen RESET PB - Check Green Lamp ON , Red

Lamp OFF & Damper reopened

Methane H2S Methane H2S

Cable Test

Type of Cable Installed: Marine Specification BS6883 / BS7917 Other:

Insulation Resistance & Continuity Test Results

Cable ID Cable

Lenght (m)

Cable Size

(mm2)

No. of

Cores

Insulation

Resistance

(Meg )

Test

Voltage

Applied

Continuity

Resistance

()

Point to

Point Check

Pass / Fail

001 (Mains Supply)

002 (Sounder/Beacon)

003 (Damper Actuator)

004 (Gas Detector)

005 (Socket 1)

General Comments:

Inspected by (Print name): Signature: Date:


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Appendix A - Completed Regular Inspection SheetsThis section contains a full collection of completed regular inspection sheets.


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Appendix B - Completed Annual Maintenance ChecklistsThis section contains a copy of the documentation from this GSM's annual maintenance.


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Appendix C. Manometer Specification


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Dwyer M ark II M anometers come in a vari-

ety of ranges. M ake sure the oil being used

is for the correct manometer.

M ark II #25, 27, M M -80 and M -700 Pa use

red gage oil (specific gravity 0.826).

M ark II #26, 28 and M M 180 use blue gage

oil (specific gravity 1.9).

If additional oil is required, call or fax nearest

Dwyer office listed at bottom of page.

INSTALLATIONPosition manometer on a vertical surface.

Drill two 1/8 or 9/64 holes on a vertical line

315/16 apart. Loosely mount manometer

with self-tapping screws provided. Adjust

gage until level bubble is centered in level

vial, then secure the manometer tightly.

For portable use, order optional A-612Portable Stand.

FILLINGTurn the zero set knob counterclockwise until

it stops, then turn clockwise 3 full turns. This

puts zero in approximately the middle of the

travel adjustment in either direction. R emove

the fill plug and fill with gage fluid until fluid

reaches zero on scale. M inor adjustments

can be made to adjust zero by adjusting zero

knob. Replace fill plug. If gage is overfilled,

remove excess by inserting pipe cleaner

through the fill port to blot up excess oil.

MAINTENANCEC heck oil level regularly and adjust zero withzero adjust knob. Be sure tubing connec-

tions are disconnected and gage is open to

atmosphere before adjusting zero.

C lean with mild soap and water. Avoid any

cleaning fluids which may result in damaging

the gage.

ACCESSORIESEach M ark II manometer includes two tubingconnectors for 1/8 pipe or sheet metal

ducts, two mounting screws, 3/4 oz. bottle

of indicating fluid, red and green pointer

flags 8 of double column tubing and instruc

Mark II Series Molded Plastic Manometers

Specifications - Instructions and Operation

Bulletin D-58

M ark II M odel No. 25

inclined-vertical manometer,

(shown with optional A-612 portable stand)


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FLOW

PsPt

PITOT TUBE

(SECTION

ENLARGED

TO SHOW

DETAIL)

AIR FILTER GAGEM ount gage within 3 ft. of filter bank. Install

tubing adapters on each side of filter. R un

tubing from clean side of filter to positive

pressure side of gage (left fitting). Run

downstream side to low pressure side of

gage (right fitting). Install green and red

arrows adjacent to indicating tube to indi-

cate filter condition.

AIR VELOCITY METER

A pitot tube should be used for air velocity

readings. Install the pitot tube and gage

carefully to ensure accuracy. Select a loca-

tion for the pitot tube with al least four diam-

eters of smooth straight sections of duct

both upstream and downstream. Install

pitot tube in the center of duct with tip

directed into air stream. C onnect the right

angle (leg parallel to tip) to negative (right fit-

ting) and straight pitot tube connection to

positive (left connection) of gage. The veloc-

ity reading shown on the gage is the center

or maximum velocity. For average velocity

across the full area, multiply by a factor of

0.9.

Nos. 27 and 28 require pitot tube at addi-

tional cost. See Bulletin F-41-F.

The velocity indicated is for dry air at 70F,

29.9 barometric pressure and a resulting

density of 0.075 lb/ft3. For variation from

these standard conditions, corrections may

be based upon the following data.

AIR VELOCITY CALCULATIONS:

Air Velocity = 1096.2

where Pv = velocity pressure in inches of

water

D = A ir density in lb/ft3

Air Density = 1.325 x

where P B = Barometric Pressure in inches

of mercury

T = Absolute Temperature (indicat-

ed temperature F plus 460)

Flow in cu. ft. per min. = Duct area in square

feet x air velocity in ft. per min.

PITOT TUBE SENSES TOTAL AND STATIC PRESSURES. MANO M ETER

M EASURES VELO CITY P RESSURE-(DIFFERENC E BETWEEN TO TAL AND

STATIC P RESSURES).

P B

T

P v

D

APPLICATIONS MARK II MANOMETER


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Appendix D. GDU/GSM Cert ificates


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Safe-Ex Ltd

2010 Safe-Ex Ltd, Unit 1 Manor Park, Windsor Road, Bedford, MK42 9HW, UK

Tel: +44 (0)1234 345676Email: [email protected]

Document Number D10502-01 11/06/2010

EC Declaration of Conformity

We: Safe-Ex Ltd

Of: Unit 1 Manor ParkWindsor RoadBedford

Bedfordshire

MK42 9HW

UK

Declare that the Safe-Ex Gas Sensing Module (GSM)has been assessed and approved by Notified Body

Baseefa 1180 Buxton UK:

Baseefa Ltd

Rockhead Business Park

Staden Lane

BuxtonDerbyshire

SK17 9RZ

for use in hazardous areas in compliance with European ATEX Directive 94/9/EC and has been issued withEC-Type Examination Certificate Number:

Baseefa10ATEX0087X

The Safe-Ex GSM has been designed and manufactured/assembled under Safe-Ex Ltd QualityManagement System which is approved under Quality Assurance Notification (QAN) number:

Baseefa ATEX 6535

and is in accordance with BS EN 9001:2008; and the Essential Health and Safety Requirements of Annex IIto European ATEX Directive 94/9/EC, and complies with the relevant sections of the followingspecifications:

EN60079-0: 2006 EN60079-1: 2004 EN60079-7: 2003 EN60079-11: 2007 EN13463-1: 2006

Compliance of the GSM equipment is indicated by carrying markings which include:

II 2G Ex d e ia m IIB T4 (Tamb = -20C to +50C) 1180

Depending on the configuration, an m Protection Concept indicator may be included in the marking or it

may be obliterated.

Signed: Name: Dr Morley Jones

Position: General Manager of Safe-Ex Ltd


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Certificate NumberBaseefa ATEX 87X

Issued 22 November 2Page of 2

SUPPLEMENTARY EC TYPE EXAMINATION CERTIFICATE2 Equipment or Protective System Intended for use in Potentially Explosive Atmospheres

Directive 94/9/EC Supplementary EC TypeExamination Certificate Number: Baseefal0ATEX0087XJl

56

Equipment or Protective System:Manufacturer:

A GSM Gas Sensing ModuleSafeEx Limited

Address: Unit 1 Manor Park Windsor Road BedfordBedfordshire MK42 9HW

7 This supplementary certificate extends EC Type Examination Certificate No. Baseefal0ATEX0087X to apply toequipment or protective systems designed and constructed in accordance with the specification set out in theSchedule of the said certificate but having any variations specified in the Schedule attached to this certificate andthe documents therein referred to.

This supplementary certificate shall be held with the original certificate.

This certificate may only be reproduced in its entirety without any change schedule included.

Baseefa Customer Reference No. 6535 Project File No. 10/0938

This certificate is granted subject to the general terms and conditions ofBaseefa. It does not necessarily indicate that the equipment may beused in particular industries or circumstances.

BaseefaRockhead Business Park, Staden Lane,Buxton, Derbyshire SK17 9RZ

Telephone +44 0 1298 766600 Fax +44 0 1298766601e-mail [email protected] web site www.baseefa.com

Baseefa is a trading name of Baseefa LtdRegistered in England No. 4305578. Registered address as above.

RS SINCLAIRDIRECTOROn behalf of

Baseefa


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Certif icate NumberBaseefa OATEX 87X Issued 22 November 2Page of

Schedule14 Certificate Number BaseefalOATEX 87X11

15 Description of the variation to the Equipment or Protective SystemVariation 11To permit an additional lamp in the cover of the flameproof control unit together with clarification of alternative wiringcircuits.16 Report NumberNone.17 Special Conditions for Safe UseNone additional to those listed previously18 Essential Health and Safety RequirementsCompliance with the Essential Health and Safety Requirements is not affected by this variation.19 Drawings and DocumentsNumber Sheet Issue Date DescriptionSE0101 01 08.10.10 General AssemblySE0101 2 01 08.10.10 General AssemblySE0103 1 00 16.03.10 Circuit DiagramSEOI03 2 00 16.03.10 Circuit DiagramSEOI03 3 00 16.03.10 Circuit DiagramSEOI03 4 00 16.03.10 Circuit DiagramSE0103 5 00 16.03.10 Circuit DiagramSE0104 1 01 13.10.10 Flameproof Enclosure ContentsSEOI04 2 01 13.10.10 Flameproof Enclosure ContentsSEOI04 3 01 13.10.10 Flameproof Enclosure Contents

Note: Drawing SE0105 Sheets 1 to 3 inclusive are superseded by the above drawings and are no longer considered asdrawings associated with this certificate.

LIMA-Z-PRC-1013 Rev 1 Habitat Operation n Dismantling Procedure

Documents

Transcript of LIMA-Z-PRC-1013 Rev 1 Habitat Operation n Dismantling Procedure