XgardIQ IECEx Certificate

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10. IECEx Certificate of Conform ity Certificate No.: Date of Issue: IECEx BAS 14.0001X 2015-10-28 Issue No.: 3 Page 5 of 5 DETAILS OF CERTIFICATE CHANGES (for issues 1 and above): ,variatIOn 3.1 To permit minor circuit and PCB layout changes to the XgardlQ Terminal Board not affecting the original assessment. ExTR: GB/BAS/ExTR15.0292/00 File Reference: 15/0699

15. Certificate No .: IECEx Certificate of Conform ity IECEx BAS 14 .0001X Date of Issue : 2015-09-22 Issue No.: 2 Page 5 of 5 DETAILS OF CERTIFICATE CHANGES (for issues 1 and above): I v a-riat i o n 2 ~ 1 I I To permit the fitt ing of vents in the I.S compartment of the ma in enclosure and the optional remote sensor housing not l affecting the original assessment. I I Variat io n 2.2 I , To permit minor circuit and PCB layout changes to one of the boards fitted i n the XgardlQ Pellistor Sensor not affecting the original assessment. ExTR: GB/BAS/ExTR15.0242/00 File Reference: 15/0576

11. IECEx Certificate of Conform ity INTERNATIONAL ELECTROTECHNICAL COMMISSION IEC Certification Scheme for Explosive Atmospheres for r ules and deta ils o f th e I ECEx Scheme vi sit www . iecex . com Certificate No. : Status: Date of Issue: IECEx BAS 14 .0001X Current 2015-09-22 issue NO . :2 Page 1 of 5 Certlficate history : I ssue N O . 2 ( 2015- 9-22) I ssue N O .1 ( 2015-7 -28) I ssue N o . 0 ( 2015- 5-28) Applicant: Electrical Apparatus: Optional accessory : Type of Protec tion : Marking: Crowcon Detection Instruments Limited 172 Brook Drive Milton Park Abingdon Oxfordshire OX144SD United Kingdom XgardlQ Fixed Gas Detector Flameproof & Intrinsic Safety Ex d ia IIC T4 Gb (-40°C s Ta s +75°C) Approved for issue on behalf of the IECEx Certification Body : Position : Signature: (for printed version) Date : R S Sinclair Technical Manager ' r ( ' ( ~' L1 '-'1 ' ~ ( '( 1. This certificate and schedule may only be reproduced in full. 2. This cert ificate is not transferable and rema ins the property of the i ssuing body. 3. The Status and authenticity of this certificate may be verified by v isiting the Offic ial I ECEx Webs ite . Certificate issued by : SGS Baseefa Limited Rockhead Business Park Staden Lane Buxton Derbyshire SK179RZ United Kingdom • • • •

6. IECEx Certificate of Conform ity INTERNATIONAL ELECTROTECHNICAL COMMISSION IEC Certification Scheme for Explosive Atmospheres for rules and details of the IECEx Scheme visit www.iecex.com Certificate No.: Status: Date of Issue: IECEx BAS 14.0001X Current 2015-10-28 issue No.:3 Page 1 of 5 Certificate history: Issue No.3 (2015-10- 28) Issue No.2 (2015-9-22) Issue No.1 (2015-7-28) Issue No. 0 (2015-5-28) Applicant: Electrical Apparatus: Optional accessory: Type of Protection: Marking: Crowcon Detection Instruments Limited 172 Brook Drive Milton Park Abingdon Oxfordshire OX144SD United Kingdom XgardlQ Fixed Gas Detector Flameproof & Intrinsic Safety Ex d ia IIC T4 Gb (-40°C ~ Ta ~ +75°C) Approved for issue on behalf of the IECEx Certification Body: Position: Signature: (for printed version) Date: R S Sinclair Technical Manager 1. This certificate and schedule may only be reproduced in full. 2. This certificate is not transferable and remains the property of the issuing body. 3. The Status and authenticity of this certificate may be verified by visiting the Official IECEx Website. Certificate issued by: SGS Baseefa Limited Rockhead Business Park Staden Lane Buxton Derbyshire SK179RZ United Kingdom

9. ---- ---- --- -- - Certificate No.: IECEx C.ertificate of Conform ity IECEx BAS 14.0001X Date of Issue: EQUIPMENT(continued): Output Parameters IHART communicator contacts: I Uo 5V 10 12.3mA , Po 15.3mW 2015-10-28 Ci Li 1.1 nF o Issue No.: 3 Page 4 of 5 !The I.S. compartment of the enclosure features a cylindrical entry machined to house one of three plastic XgardlQ sensor assemblies: Oxygen Toxic Pellistor The model number of the equipment indicates the Gas Sensor fitted to the sensor assembly. The various types are listed in the User Manual provided by the manufacturer. The equipment is not designed for use in oxygen enriched atmospheres. Alternatively the entire sensor assembly may be replaced with a remote sensor assembly comprising a metallic remote sensor housing to which one of the above mentioned XgardlQ Sensor assemblies can be fitted. This is connected to the main unit via a cable to up to 15 metres in length. IThe XgardlQ has a range of available accessories, which includes: Splash guard assembly Calibration cap Flow adaptor Dust filter Pipe mounting kit Sun shade IThe calibration cap and flow adaptor are intended to be used for maintenance purposes, whilst the remainder are optional and dependent on the conditions which the equipment is intended to be used in. :The main enclosure is fully labelled with the requisite marking and warnings, whilst the sensors and remote sensor housing are labelled as 'Part Of the equipment

14. Certificate No .: IECEx Certificate of Conform ity IECEx BAS 14.0001X Date of Issue : EQUIPMENT(continued): ' Out put Parameters I : HA RT communicator contacts : I Uo 5V 10 12 .3mA Po 15 .3mW 2015-09-22 Ci Li 1 .1 nF o Issue No. : 2 Page 4 of 5 I I I T he I.S. compartment of the enclosure features a cylindrical entry machined to house one of three plastic XgardlQ sensor assembl ies : Oxygen Toxic Pellisto r I T he model number of the equipment indicates the Gas Sensor fitted to the sensor assembly. The various types are listed in : ' the User Manual provided by the manufacturer. The equipment is not designed for use in oxygen enriched atmospheres . I : Alternative l y the ent ire sensor assemb ly may be replaced with a remote sensor assembly comprising a metall ic remote ' sensor housing to which one of the above ment ioned XgardlQ Sensor assemblies can be fitted. This is connected to the ' main unit via a cable to up to 15 metres in length . I I T he XgardlQ has a range of available accessories, which includes: ! - Splash guard assembly '- Calibration cap l - Flow adapto r Dust fi lter : - Pipe mount ing k it i - Sun shade , T he calibration cap and flow adaptor are intended to be used for maintenance purposes , whilst the remainder are optional and dependent on the cond itions which the equipment is i ntended to be used in . I I i T he main enclosure is fully l abelled with the requisite marking and warnings , whilst the sensors and remote sensor housing are labelled as ' Part Of the equipment I I I

8. ------- ----- Certificate No.: IECEx Certificate of Conform ity IECEx BAS 14.0001X Date of Issue: 2015-10-28 Schedule Issue No.: 3 Page 3 of 5 EQUIPMENT: Equipment and systems covered by this certificate are as follows: The XgardlQ Fixed Ga-s Detector comprises a stainless steel or aluminium housing, which is divided into a cylindrical flameproof enclosure and a crescent shaped I.S. enclosure. An Ex d certified bushing is used to provide cable access between the two compartments. ,Three cable entry holes are provided in the main flameproof enclosure as specified on the certified drawings for the accommodation of flameproof cable entry devices, with or without the interposition of flameproof thread adapters. Any unused cable entry holes must be fitted with a suitable flameproof stopping plug certified as Equipment (not a Component) under an IECEx Certificate of Conformity, or a stopping plug provided by the manufacturer. The cable entries may be M20 or %" NPT, and are identified on the body of the XgardlQ by markings cast into the enclosure. The enclosure also featu res an M115 threaded aluminium or stainless steel lid. An M3 grub screw is used to secure the lid against unintentional removal. The flameproof enclosure houses a stacked PCB sub assembly comprises a main board and terminal board that provides the intrinsic safe connections to the display sub assembly and sensor housed in the I.S. compartment. In addition to these boards, the stacked assembly can be fitted with an optional Relay Board providing three 230V, 5A rated volt-free contacts for lhe switching of external alarm devices, and / or a Fieldbus Module providing Foundation Fieldbus communications. The model number of the equipment indicates the fitting of the optional boards and whether HART communications is enabled. The intrinsically safe display sub assembly comprises an OLEO display with three push buttons on the front of the compartment used to interrogate and monitor the XgardlQ in service. Two contacts are additionally provided on the front of the display for the connection of a suitably certified HART Communicator, such as the Emerson Type 375 Communicator. The contacts on the front of the display are exposed and the possible output has a FOS of at least 400 so does not pose a -hazard. 'See _~ditional sheet for furth~r equJpment details. CONDITIONS OF CERTIFICATION: YES as shown below: - - -- ,1. This equipment constitutes a potential electro-static charging hazard which could provide a source of ignition. The 'instructions for use provided with this equipment contain guidance for the end user to minimize the risk from electro- static discharge which must be followed. 2. Cable entry holes are provided as specified on the certified drawings for the accommodation of flameproof cable entry devices, with or without the interposition of a flameproof thread adapter. Unused entries are to be fitted with certified ,flameproof stopping plugs. The cable entry devices, thread adapters and stopping plugs shall be suitable for the equipment, the cable and the conditions of use and shall be certified as Ex Equipment and not an Ex Component. -3. No part of this equipment or its accessories covered by this certificate shall be used outside the pressure range 80kPa ·to 11 OkPa, as defined by IEC 60079-0.

12. - - - - - ------ ----------- ------- ---- Certificate No .: IECEx Certificate of Conform ity IECEx BAS 14.0001X Date of Issue: Manufacturer: Additional Manufacturing location (s) : 2015-09-22 Crowcon Detection Instruments Limited 172 Brook Drive Milton Park Abingdon Oxfordshire OX144SD United Kingdom Issue No .: 2 Page 2 of 5 This certificate is issued as verification that a sample(s) , representative of production, was assessed and tested and found to comply with the IEC Standard list below and that the manufacturer's quality system, relating to the Ex products covered by this certificate, was assessed and found to comply with the IECEx Quality system requirements. This certificate is granted subject to the conditions as set out in IECEx Scheme Rules , IECEx 02 and Operational Documents as amended . STANDARDS: The electrical apparatus and any acceptable variations to it specified in the schedule of this certificate and the identified documents , was found to comply with the following standards: IEC 60079-0 : 2011 Edition : 6 .0 IEC 60079-1 : 2007-04 Edition : 6 IEC 60079-11 : 2011 Edition: 6.0 Explosive atmospheres - Part 0 : General requirements Explosive atmospheres - Part 1: Equipment protection by flameproof enclosures "d" Explosive atmospheres - Part 11: Equ ipment protection by intrinsic safety "i" This Certificate does not indicate compliance with electrical safety and performance requirements other than those expressly included in the Standards listed above. TEST & ASSESSMENT REPORTS: A sample(s) of the equipment listed has successfully met the examination and test requirements as recorded in Test Report : GB/BAS/ExTR 14 .0009/00 GB/BAS/ExTR 15.0242/00 Quality Assessment Report : GB/BAS/QAR06 .0070/04 G B/BAS/Ex TR 15 .0080/00 GB/BAS/ExTR15 .0193/00

7. Certificate No.: IECEx Certificate of Conform ity IECEx BAS 14.0001X Date of Issue: Manufacturer: Additional Manufacturing location (s): 2015-10-28 Crowcon Detection Instruments Limited 172 Brook Drive Milton Park Abingdon Oxfordshire OX144SD United Kingdom Issue No.: 3 Page 2 of 5 This certificate is issued as verification that a sample(s), representative of production, was assessed and tested and found to comply with the IEC Standard list below and that the manufacturer's quality system, relating to the Ex products covered by this certificate, was assessed and found to comply with the IECEx Quality system requirements. This certificate is granted subject to the conditions as set out in IECEx Scheme Rules, IECEx 02 and Operational Documents as amended. STANDARDS: The electrical apparatus and any acceptable variations to it specified in the schedule of this certificate and the identified documents, was found to comply with the following standards: IEC 60079-0 : 2011 Edition: 6.0 IEC 60079-1 : 2007-04 Edition: 6 IEC 60079-11 : 2011 Edition: 6.0 Explosive atmospheres - Part 0: General requirements Explosive atmospheres - Part 1: Equipment protection by flameproof enclosures "d" Explosive atmospheres - Part 11: Equipment protection by intrinsic safety "i" This Certificate does not indicate compliance with electrical safety and performance requirements other than those expressly included in the Standards listed above. TEST & ASSESSMENT REPORTS: A sample(s) of the equipment listed has successfully met the examination and test requirements as recorded in Test Report: GB/BAS/ExTR 14.0009/00 GB/BAS/ExTR 15.0242/00 Quality Assessment Report: GB/BAS/QAR06.0070104 GB/BAS/ExTR15.0080100 GB/BAS/ExTR 15. 0292/00 GB/BAS/ExTR 15. 0193/00

13. Certificate No .: IECEx Certificate of Conform ity IECEx BAS 14 .0001X Date of Issue: 2015-09-22 Schedule Issue No.: 2 Page 3 of 5 EQUIPMENT: Equipment and systems covered by this certificate are as follows: i T- he igardl -Q - Fixed Gas Detector comprises a stainless steel or aluminiurn housing ~ whlC il is divided into a -cy 'lfii -drical flameproof enclosure and a crescent shaped I.S . enclosure . An Ex d certified bushing is used to provide cable access between the two compartments. j [I hree cable entry holes are provided in the main flameproof enclosure as specified on the certified drawings for the . accommodation of flameproof cable entry devices, with or without the interposition of flameproof thread adapters. Any unused cable entry holes must be fitted with a suitable flameproof stopping plug certified as Equipment (not a Component) , unde r an IECEx Certificate of Conformity, or a stopping plug provided by the manufacturer. The cable entries may be M20 or , ! ~ " NPT, and are identified on the body of the XgardlQ by markings cast into the enclosure . The enclosure also features an ' ~ M 1 1 5 threaded a luminium or stainless steel lid . An M3 grub screw is used to secure the lid against unintentional removal. , ; T he flameproof enclosure houses a stacked PCB sub assembly comprises a main board and terminal board that provides the intrinsic safe connections to the display sub assembly and sensor housed in the I.S . compartment. In addition to these boards, the stacked assembly can be fitted with an optional Relay Board providing three 230V , 5A rated volt-free contacts for the switching of external alarm devices, and / or a Fieldbus Module providing Foundation Fieldbus communications . The ' model number of the equipment indicates the fitting of the optional boards and whether HART communications is enabled . I I i T he intrinsically safe display sub assembly comprises an OLEO display with three push buttons on the front of the ' compartme nt used to interrogate and monitor the XgardlQ in service. Two contacts are additionally provided on the front of the display for the connection of a suitably certified HART Commun icator , such as the Emerson Type 375 Communicator. [I he contacts on the front of the display are exposed and the possible output has a FOS of at least 400 so does not pose a ' hazard . i I ?e~ , ag Q i t ! 0 l'! ~ 1 sheet for furt ~r ~.9~iJ:?ment details , CONDITIONS OF CERTIFICATION: YES as shown below: i 1 . - =r ' hi s e quf p ment constitutes apote ntial electro-static charging hazard which co ul d pro v id ' e - a ' so urce of ig nition. The : ' instructio ns for use provided with this equipment contain guidance for the end user to minimize the risk from electro- ' static discharge which must be followed. ' 2 . Cable entry holes are provided as specified on the certified drawings for the accommodation of flameproof cable entry ' devices , with or without the interposition of a flameproof thread adapter. Unused entries are to be fitted with certified ' flameproof stopping plugs. The cable entry devices , thread adapters and stopping plugs shall be suitable for the equipment, ! the cable and the conditions of use and shall be certified as Ex Equipment and not an Ex Component. I ' 3 . No part of this equipment or its accessories covered by this certificate shall be used outside the pressure range 80kPa : to 11 OkPa , as defined by IEC 60079-0 .

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