Mining And Surface Certification (Pty) Ltd IA Certificate
Certificate Number: MASC M/25-8217X
Issue Date: 28 May 2025
Expiry Date: 28 May 2028
Certificate Details
IA Certificate Number: MASC M/25-8217X
Issue: 0
Expiry Date: 28 May 2028
Based on Certificate No: Sira 99ATEX2152X
Requested by: Trolex Limited
Manufacturer: Trolex Limited
Address: 10a Newby Road, Hazel Grove, Stockport SK7 5DY, United Kingdom
Equipment Description
The TX6831 Audio/Visual Alarm provides a visual and audible indication of a malfunction in an associated sensor to which it is connected. When the sensor output signal is at a normal level, the equipment emits a light pulse every 15 seconds, verifying that the unit is working. If the output exceeds a pre-set limit, the flash rate increases to once per second, indicating that an alarm condition has occurred. There is an optional integral sounder to provide an audible warning.
The equipment is housed in an enclosure comprising a base moulding and a lens moulding. The base is manufactured from stainless-steel filled polycarbonate or stainless-steel filled Nylon 6 and the lens from anti-static polycarbonate or polycarbonate impregnated with an anti-static coating.
The equipment mounts directly on top of the sensor, with a gasket seal to ensure an ingress protection of at least IP54. A labyrinth seal around the sounder maintains the ingress rating.
Four wires exit the equipment: two for connection to a suitable power supply and two for connection to the output signal terminals of the sensor.
Equipment Marking
Type: TX6831
Ex Marking: Ex ia I Ma, Ta = -20°C to + 60°C
IA Number: MASC M/25-8217X (To be additionally marked on equipment)
Warnings: See Base Certificate ** (original marking must be applied)
Quality Assurance Report (QAR) / Notification (QAN)
It is a requirement under ATEX that all equipment for category 1 and 2 areas must have 3rd party quality assurance from a notified body. This is accepted to cover the equipment's quality requirements.
Compliance
The equipment as described above has been allocated the rating Explosion Protected 'as above' utilizing the SANS/IEC Standards:
- SANS (IEC) 60079-0: 2019 Equipment - General requirements
- SANS (IEC) 60079-11: 2012 Equipment protection by intrinsic safety “i”
Note: This certificate covers only the listed standards and does not imply compliance to any other standard, related or inferred. It is up to the manufacturer to ensure that the product complies to all relevant standards for the application.
Specific Conditions of Use "X"
Refer to Annex A below for more details.
Conditions of Manufacture
Refer to Annex A below for more details.
Technical Signatures
S. JORDAAN
TECHNICAL SPECIALIST
N. VILOJEN
TECHNICAL OFFICER
General Provisions
This certificate covers all units sold as long as the QAR/QAN remains valid.
According to the relevant requirements of the MHS Act and the OHS Act, production units of explosion protected equipment are required to comply with third party quality assurance (an approved mark scheme or batch testing by an accredited test laboratory).
Apparatus in hazardous locations is subject to the following provisions as applicable, which shall be adhered to:
- SANS 10086 requirements;
- Any conditions mentioned in the above certificate;
- Any relevant requirements of the MHS Act;
- Any restrictions and conditions enforced by the chief inspector of mines, principal inspector (Group I equipment) or chief inspector of factories (Group II equipment).
This certificate may only be reproduced in full.
The certificate is not transferable and remains the property of the issuing body.
Mining And Surface Certification (Pty) Ltd
Unit 5 Lelyta Park, 45 Jurg Avenue, Hennopspark, Ext 87
Centurion 0157
Annex A: Specific Conditions of Use
Under normal or fault conditions, the internal temperature of this equipment may rise above 150°C; therefore, care shall be taken when the enclosure is opened to ensure that no dust enters the equipment.
The anti-static coating can be adversely affected by contact with acid or damage to the lens. Suitable precautions shall be taken to avoid such instances, and the lens shall be inspected periodically for any damage.
Annex A: Conditions of Manufacture
The use of this certificate is subject to the Regulations Applicable to Holders of CSA Group Netherlands B.V. certificates.
Holders of EU-Type Examination Certificates are required to comply with the conformity to type requirements defined in Article 13 of Directive 2014/34/EU.
The TX6831 Audio/Visual Alarm incorporates a previously certified fuse BASEEFA 02ATEX0071U. It is therefore the responsibility of the manufacturer to continually monitor the status of the certification associated with this device. The manufacturer shall inform Sira of any modifications to the device that may impinge upon the explosion safety design of the TX6831 Audio/Visual Alarm.
Annex A: Conditions of Certification
This IA Certificate covers all units sold from the date of this document to the expiry date of this certificate.
As per ARP 0108: 2018 / NCoP 2398: 2022 (as applicable) a maximum three yearly review is required on this IA Certificate (expiry is determined as per the QAR/QAN/QMS expiry date).
The apparatus must be additionally marked with the MASC marking details above.
This approval only covers the equipment as certified above and does not include any scheduled additions or variations / amendments / new issues to the certificate(s), made after the above date.
The equipment does not need to be re-tested when used on the conditions and with such restrictions as prescribed by the certificate on which this IA Certificate is based and any other conditions in this IA Certificate.
The certification on which this IA Certificate is based must remain valid.
The extent of the requirements in the ARP 0108:2018 / NCoP 2398: 2022 (as applicable), SANS 10108 and any other applicable regulations on the certification of the equipment must remain unchanged.
The Ex-quality assurance notification/report for the equipment must remain valid.
The routine tests for production units according to the Base Certificate ** must be complied with (if applicable).
Annex A: Conclusion
From the above and the selective examination of the documentation, nothing contrary to the requirements of the applicable standards was found, provided that the equipment / component is used as described in the above document / certificate and according to the MASC conditions below. A MASC IA certificate is issued based on the work done as per the Base Certificate **.
EU-Type Examination Certificate
Certificate Number: Sira 99ATEX2152X
Issue: 5
Equipment: TX6831 Audio/Visual Alarm
Applicant: Trolex Limited
Address: Newby Road, Hazel Grove, Stockport SK7 5DY, UK
This equipment and any acceptable variation thereto is specified in the schedule to this certificate and the documents therein referred to.
CSA Group Netherlands B.V., notified body number 2813 in accordance with Articles 17 and 21 of Directive 2014/34/EU of the European Parliament and of the Council, dated 26 February 2014, certifies that this equipment has been found to comply with the Essential Health and Safety Requirements relating to the design and construction of equipment intended for use in potentially explosive atmospheres given in Annex II to the Directive.
The examination and test results are recorded in the confidential reports listed in Section 14.2.
Compliance with the Essential Health and Safety Requirements, with the exception of those listed in the schedule to this certificate, has been assured by compliance with the following documents:
- EN IEC 60079-0:2018
- EN 60079-11:2012
If the sign 'X' is placed after the certificate number, it indicates that the equipment is subject to Specific Conditions of Use identified in the schedule to this certificate.
This EU-Type Examination Certificate relates only to the design and construction of the specified equipment. If applicable, further requirements of this Directive apply to the manufacture and supply of this equipment.
The marking of the equipment shall include the following:
Ex I M1
Ex ia I Ma
Ta = -20°C to + 60°C
Descriptive Documents
Drawings
Refer to Certificate Annexe.
Associated Reports and Certificate History
| Issue | Date | Report number | Comment |
|---|---|---|---|
| 0 | 08 May 2000 | R52X6355A | The release of the prime certificate. |
| 1 | 06 July 2001 | N/A | The introduction of Variation 1. |
| 2 | 24 March 2003 | R52A9400A | The introduction of Variation 2. |
| 3 | 02 July 2015 | R70028015A | This Issue covers the following changes: • All previously issued certification was rationalised into a single certificate, Issue 3, Issues 0 to 2 referenced above are only intended to reflect the history of the previous certification and have not been issued as documents in this format. • The introduction of Variation 3. • Transfer of certificate Sira 99ATEX2152X from Sira Certification Service to CSA Group Netherlands B.V. • EC Type-Examination Certificate in accordance with 94/9/EC updated to EU Type-Examination Certificate in accordance with Directive 2014/34/EU. (In accordance with Article 41 of Directive 2014/34/EU, EC Type-Examination Certificates referring to 94/9/EC that were in existence prior to the date of application of 2014/34/EU (20 April 2016) may be referenced as if they were issued in accordance with Directive 2014/34/EU. Variations to such EC Type-Examination Certificates may continue to bear the original certificate number issued prior to 20 April 2016.) |
| 4 | 31 October 2019 | 1590 | The introduction of Variation 4. |
| 5 | 21 March 2024 | R80196425A | The introduction of Variation 4. |
Specific Conditions of Use (denoted by X after the certificate number)
Under normal or fault conditions, the internal temperature of this equipment may rise above 150°C; therefore, care shall be taken when the enclosure is opened to ensure that no dust enters the equipment.
The antistatic coating can be adversely affected by contact with acid or damage to the lens. Suitable precautions shall be taken to avoid such instances and the lens shall be inspected periodically for any damage.
Essential Health and Safety Requirements of Annex II (EHSRs)
The relevant EHSRs that are not addressed by the standards listed in this certificate have been identified and individually assessed in the reports listed in Section 14.2.
Conditions of Manufacture
The use of this certificate is subject to the Regulations Applicable to Holders of CSA Group Netherlands B.V. certificates.
Holders of EU-Type Examination Certificates are required to comply with the conformity to type requirements defined in Article 13 of Directive 2014/34/EU.
The TX6831 Audio/Visual Alarm incorporates a previously certified fuse BASEEFA 02ATEX0071U. It is therefore the responsibility of the manufacturer to continually monitor the status of the certification associated with this device. The manufacturer shall inform Sira of any modifications to the device that may impinge upon the explosion safety design of the TX6831 Audio/Visual Alarm.
