MTLCertificate Number Baseefa09ATEX0155 Issue 6

ED - TYPE EXAMINATION CERTIFICATE

2 Safety Device, Controlling Device or Regulating Device intended for use outside a potentially explosive atmosphere

but required for or contributing to the safe functioning of Equipment and Protective Systems with respect to the

risks of explosion

Directive 2014/34/EU

3 EU - Type Examination Certificate

Number:

Baseefa09ATEX0155 - Issue 6

3.1 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 of2014/34/EU (20 April 2016) may be referenced as if they were issued in accordance

with Directive 2014/34/EU. Supplementary Certificates to such EC-Type Examination Certificates, and new issues of such

certificates, may continue to bear the original certificate number issued prior to 20 April 2016.

4

5

6

Product:

Manufacturer:

Address:

MTL4541S, MTL4541T, MTL4544S & MTL4544D Repeater Power Supplies,

4!20mA

Eaton Electric Limited

Great Marlings, Butterfield, Luton, Bedfordshire, LU2 8DL

7 This re-issued certificate extends EC Type Examination Certificate No. Baseefa09ATEX0155 to apply to product designed and

constructed in accordance with the specification set out in the Schedule ofthe said certificate but having any variations specified

in the Schedule attached to this certificate and the documents therein referred to.

8 SGS Baseefa, Notified Body number 1180, in accordance with Article 17 of Directive 2014/34/EU of the European Parliament

and of the Council, dated 26 February 2014, certifies that this product has been found to comply with the Essential Health and

Safety Requirements relating to the design and construction of products intended for use in potentially explosive atmospheres

given in Annex II to the Directive.

The examination and test results are recorded in confidential Report No. See Certificate History

9 Compliance with the Essential Health and Safety Requirements has been assured by compliance with:

EN 60079-0: 2012 + All: 2013 EN 60079-11: 2012

except in respect ofthose requirements listed at item 18 ofthe Schedule.

10 If the sign "X" is placed after the certificate number, it indicates that the product is subject to the Specific Conditions of Use

specified in the schedule to this certificate.

11 This EU - TYPE EXAMINATION CERTIFICATE relates only to the design and construction of the specified product. Further

requirements of the Directive apply to the manufacturing process and supply of this product. These are not covered by this

certificate.

12 The marking ofthe product shall include the following:

® II (1) GD [Ex ia Gal IIC (-20°C Ta +60 0C)

[Ex ia Da] IIIC (-20°C Ta +60°C)

® I (M1) [Ex ia Ma] I (-20°C Ta +60°C)

SGS Baseefa Customer Reference No. 0703 Project File No. 16/0371

This document is issued by the Company subject to its General Conditions for Certification Services accessible at http://www.sgs.com/enrrerms-andConditions.aspx and the Supplementary Terms and Conditions accessible at http://www.sgs.com/SGSBaseefaiTerms-and-Conditions.aspx Attention is drawn to

the limitation of liability, indemnification and jurisdiction issues defined therein. Any holder of this document is advised that information contained herein

reflects the Company's findings at the time of its intervention only and within the limits ofClient's instructions, if any. It does not necessarily indicate that the

equipment may be used in particular industries or circumstances. The Company's sole responsibility is to its Client and this document does not exonerate

parties to a transaction from exercising all their rights and obligations under the transaction documents. This document cannot be reproduced except in full,

schedule included, without prior written approval of the Company. Any unauthorized alteration, forgery or falsification of the content or appearance of this

document is unlawful and offenders may be prosecuted to the fullest extent ofthe law.

SGS Baseefa Limited

Rockhead Business Park, Staden Lane,

Buxton, Derbyshire SK17 9RZ

Telephone +44 (0) 1298766600 Fax +44 (0) 1298766601

e-mail baseefa@sgs.com web site www.sgs.co.uk/baseefa

Registered in England No. 4305578.

Registered address: Rossmore Business Park, Ellesmere Port, Cheshire, CH65 3EN

R S SINCLAIR

TECHNICAL MANAGER

On behalf of SGS Baseefa Limited

Schedule

Issued 26 September 2016

Page 2 of7

14 Certificate Number Baseefa09ATEX0155 - Issue 6

15 Description of Product

The MTL4544S Two Channel Repeater Power Supply, 4/20mA for 'Smart' Transmitters is designed to provide floating

d.c. supplies for energising two 'Smart' 4/20mA Transmitters located in the hazardous area and repeat these currents in the

non-hazardous area, whilst restricting the transfer of energy from the unspecified non-hazardous area apparatus to the

intrinsically safe circuits by means of limitation of current and voltage. The apparatus also allows bi-directional signal

communication between the hazardous and non-hazardous area by the connection of a hand-held communicator (HHC).

The MTL4544S Two Channel Repeater Power Supply, 4/20mA for 'Smart' Transmitters comprises four isolating

transformers that provide galvanic isolation between the hazardous and non-hazardous area circuitry, zener diode chains

and resistors providing voltage and current limitation. The above, together with other electronic components are mounted

on a single printed circuit board (PCB) and housed in a moulded plastic enclosure. Polarised plugs and sockets are

provided for hazardous and non-hazardous area connections. LED indication is fitted to indicate power-on.

The MTL454IS Single Channel Repeater Power Supply, 4/20mA for 'Smart' Transmitters is a depopulated version ofthe

MTL4544S and has only one channel populated.

The MTL4544D Repeater Power Supply, 4/20mA for 2 or 3 Wire Transmitters with two outputs is designed to provide a

floating d.c. supplies for energising a 2 or 3-Wire 4/20mA Transmitter located in the hazardous area and repeat the current

on two channels in the non-hazardous area, whilst restricting the transfer of energy from the unspecified non-hazardous

area apparatus to the intrinsically safe circuits by means of limitation of current and voltage. The apparatus also allows bidirectional signal communication between the hazardous and non-hazardous area by the connection of a hand-held

communicator (HHC). The apparatus uses the same printed circuit board and enclosure as the MTL4544S but is populated

with only one hazardous area transmitter connection and two non-hazardous area outputs fitted.

The MTL454IT Single Channel Repeater Power Supply, 4/20mA for 2 or 3-Wire Transmitters is similar to the

MTL454I S but is fitted with different voltage and current limitation components and therefore has different output

parameters.

MTL4541S, MTL4544S & MTL4544D Input / Output Parameters

Non-hazardous Area Terminals 8, 9, 11, 12, 13 & 14

Urn 253V Lm.S.

The apparatus is designed to operate on non-hazardous area terminals 8, 9, 11, 12, 13 & 14 from a d.c. supply voltage of

up to 35V.

Hazardous Area Terminals 2 W.r.t. 1 (Channel 1)

Or

Hazardous Area Terminals 5 W.r.t. 4 (Channel 2 - MTL4544S model)

28V

93mA

O.65W

o

o

Hazardous Area Terminals 3 W.r.t. 1 (Channel 1)

Or

Hazardous Area Terminals 6 w.r.t. 4 (Channel 2 - MTL4544S model)

1.1V

53mA

15mW

UI

I 1

30V

121mA

C1

L1

o

o

Although the apparatus does not comply with the simple apparatus requirements of Clause 5.7 of EN 60079-11: 2012,

when terminals 3 W.r.t. 1 or terminals 6 W.r.t 4 (MTL4544S model only) are connected in an intrinsically safe circuit the

internal stored energy, voltage and current of the interface will not add more than the values specified in Clause 5.7 of

EN 60079-11: 2012 to the parameters ofthe circuit into which it is connected.

When an external intrinsically safe source is connected to these terminals it should have a source resistance of Uj / Ii and

the capacitance and either the inductance or inductance to resistance ratio (L/R) ofthe hazardous area connections must not

exceed the values detailed in the certificate of the intrinsically safe source. Hazardous area terminals 2 and 5 must not be

used when the source is connected.

Hazardous Area Terminals 2 W.r.t. 3 (Channel 1)

Or

Hazardous Area Terminals 5 W.r.t. 6 (Channel 2 - MTL4544S model)

28V

87mA

0.61W

o

o

Each channel must be considered as a separate intrinsically safe circuit.

Load Parameters

The capacitance and either the inductance or inductance to resistance ratio (L/R) of the hazardous area load connected

must not exceed the following values for either channel:

GROUP CAPACITANCE INDUCTANCE OR LIRRATIO

(J1F) (mH) (J1H/ohm)

Hazardous Area Terminals 2 w.r.t. 1 or 5 W.r.t. 4 (MTL4544S only)

IIC 0.083 4.2 56

IIB* 0.65 12.6 210

IIA 2.15 33.6 444

I 3.76 53.7 668

Hazardous Area Terminals 3 W.r.t. 1 or 6 W.r.t 4 (MTL4544S only)

IIC 100 12.8 2,438

IIB* 1,000 47.8 8,932

IIA 1,000 104.7 18,140

I 1,000 156.2 28,229

Hazardous Area Terminals 2 W.r.t. 3 or 5 W.r.t. 6 (MTL4544S only)

IIC 0.083 4.9 59

lIB* 0.65 20.0 222

IIA 2.15 40.9 469

I 3.76 59.1 710

* Group lIB parameters also applicable for associated apparatus [Ex ia Da] IIIC

Notes:

1) The above load parameters apply when one ofthe two conditions below is given:

- the total Lj ofthe external circuit (excluding the cable) is < 1% ofthe Lovalue or

- the total Ci ofthe external circuit (excluding the cable) is < 1% ofthe Co value.

The above parameters are reduced to 50% when both ofthe two conditions below are given:

- the total Lj ofthe external circuit (excluding the cable) is 1% ofthe Lovalue and

- the total Cj ofthe external circuit (excluding the cable) is 1% ofthe Co value.

The reduced capacitance ofthe external circuit (including cable) shall not be greater than I/-lF for Groups IIB, IIA

& I and 600nF for Group IIC.

MTL4541T Input / Output Parameters

Non-hazardous Area Terminals 8, 9, 11, 13 & 14

Urn 253V r.m.s.

The apparatus is designed to operate on non-hazardous area terminals 8, 9, 11, 13 & 14 from a d.c. supply voltage of up to

35V.

Hazardous Area Terminals 2 W.r.t. 1

22V

167mA

0.92W

o

o

Hazardous Area Terminals 3 W.r.t. 1

1.0V

53mA

14mW

30V

121mA

o

o

Although the apparatus does not comply with the simple apparatus requirements of Clause 5.7 of EN 60079-11: 2012,

when terminals 3 W.r.t. 1 are connected in an intrinsically safe circuit the internal stored energy, voltage and current ofthe

interface will not add more than the values specified in Clause 5.7 of EN 60079-11: 2012 to the parameters of the circuit

into which it is connected.

When an external intrinsically safe source is connected to these terminals it should have a source resistance of Ui / Ii and

the capacitance and either the inductance or inductance to resistance ratio (L/R) ofthe hazardous area connections must not

exceed the values detailed in the certificate of the intrinsically safe source. Hazardous area terminal 2 must not be used

when the source is connected.

Hazardous Area Terminals 2 W.r.t. 3

22V

145mA

0.80W

o

o

Load Parameters

The capacitance and either the inductance or inductance to resistance ratio (L/R) ofthe hazardous area load connected

must not exceed the following values:

GROUP CAPACITANCE INDUCTANCE OR L/RRATIO

(J.lF) (mH) (J.lH/ohm)

Hazardous Area Terminals 2 w.r.t. 1

IIC 0.165 0.91 39

lIB* 1.14 5.5 147

IIA 4.20 10.7 322

I 6.00 16.4 517

* Group IIB parameters also applicable for associated apparatus [Ex ia Da] lIIC

Notes:

1) The above load parameters apply when one ofthe two conditions below is given:

- the total Li ofthe external circuit (excluding the cable) is < 1% ofthe Lo value or

- the total Cj ofthe external circuit (excluding the cable) is < 1% ofthe Co value.

2) The above parameters are reduced to 50% when both ofthe two conditions below are given:

- the total Li ofthe external circuit (excluding the cable) is 1% ofthe Lovalue and

- the total Cj ofthe external circuit (excluding the cable) is 1% ofthe Co value.

The reduced capacitance ofthe external circuit (including cable) shall not be greater than 11lF for Groups IIB, IIA

& I and 600nF for Group IIC.

16 Report Number

GB/BAS/ExTR16.0237/00

17 Specific Conditions of Use

None

18 Essential Health and Safety Requirements

In addition to the Essential Health and Safety Requirements (EHSRs) covered by the standards listed at item 9, the

following are considered relevant to this product, and conformity is demonstrated in the report:

Clause

1.2.7

1.2.8

1.4.1

1.4.2

Subject

Protection against other hazards (LVD type requirements, etc.)

Overloading of equipment (protection relays, etc.)

External effects

Aggressive substances, etc.

Compliance

Manufacturer responsibility

User/Installer responsibility

User/Installer responsibility

User/Installer responsibility

19 Drawings and Documents

New drawings submitted for this issue of certificate:

Number

CI4541-3

Sheet

80f8

Issue

4

Date

7.16

Description

MTL45541S, MTL4541T, MTL4544S, MTL4544D

Certification Label Details - Baseefa

The above drawing is associated and held with IECEx BAS 09.0070 Iss. 6

Current drawings which remain unaffected by this issue:

Certificate No.

Baseefa09ATEX0155/2

Baseefa09ATEXO155/3

Baseefa09ATEX0155/4

Baseefa09ATEXO 155/5

Date

31 January 2011

6 August 2012

4 March 2013

27 January 2014

Comments

i) To permit the alternative fitting of ISMB3EZ** zener diodes in

place of 15MB59**BT3 components currently fitted.

ii) An alternative method of applying the conformal coating to the

PCB fitted 10 the equipment not affecting the original

assessment.

The associated test and assessment is documented in Certification

Report No. GB/BAS/ExTR10.0298/00.

To confirm the current designs of the MTL4541S, MTL4544S &

MTL4544D Repeater Power Supplies, 4/20mA have been reviewed

against the requirements of IEC 60079-0: 2011 and

EN 60079-11: 2012 10 respect of the differences from

EN 60079-0: 2009, EN 60079-11: 2007 and EN 61241-11: 2006 and

none ofthe differences affect the equipment. In accordance with EN

60079-11: 2012, the Group I capacitive load parameters were

corrected and the associated load parameter notes were updated.

The associated assessment is documented in Certification Report

No. GB/BAS/ExTR12.0181/00.

i) To permit minor component changes to the current design to

form the MTL4541T Single Channel Repeater Power Supply,

4/20mA for 2 or 3-Wire Transmitters.

ii) To confirm the current designs ofthe MTL4541S, MTL4541T,

MTL4544S & MTL4544D Repeater Power Supplies, 4/20mA

have been reviewed against the requirements of EN 60079-0:

2012 in respect ofthe differences from IEC 60079-0: 2011 and

none ofthe differences affect the equipment.

The associated assessment is documented in Certification Report

No. GB/BAS/ExTR13.0022/00.

i) To permit minor component changes to the MTL4541 T Single

Channel Repeater Power Supply, 4/20mA for 2 or 3-Wire

Transmitters not affect the original assessment.

ii) To permit minor drawing changes not affecting the original

assessment.

The associated assessment is documented in Certification Report

No. GB/BAS/ExTR14.0019/00.

Baseefa09ATEXO 155 Issue 6 26

2016

September This issue of the certificate incorporates previously issued primary

& supplementary certificates into one certificate and confirms the

current designs meet the requirements of

EN 60079-0: 2012 + All: 2013 & EN 60079-11: 2012.

The certificate also permits the manufacturer's name to be changed

on page 1 ofthe certificate and on the equipment marking.

The associated assessment is documented in Certification Report

No. GB/BAS/ExTR16.0237/00.

For drawings applicable to each issue, see original ofthat issue