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IECEx Certificate
of Conformity
 
INTERNATIONAL ELECTROTECHNICAL COMMISSION
IEC Certification Scheme for Explosive Atmospheres
for rules and details of the IECEx Scheme visit www.iecex.com
 
Certificate No.:
IECEx SIR 07.0013X issue No.:8
 
Status:
Current
 
Date of Issue:2011-05-10 Page 1 of 5


    
Applicant:
Technolog Limited
Technolog House
Ravenstor Road
Wirksworth
Derbyshire DE4 4FY
United Kingdom


 
Electrical Apparatus:Cello 6 V2 Meter Readers
Optional accessory:


 
Type of Protection:Intrinsic Safety


 
Marking: Cello 6 V2 Meter Reader
Ga Ex ia IIB T4
(Ga) [Ex ia] IIB
Cello 6 V2 LPG Meter Reader
Ga Ex ia IIB T4
 
Approved for issue on behalf of the IECEx
Certification Body:		C Ellaby

 
Position:Deputy Certification Manager


 
Signature:
(for printed version)
 
Date:
 
 
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:
SIRA Certification Service
Rake Lane
Eccleston
Chester
CH4 9JN
United Kingdom


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IECEx Certificate
of Conformity
 
Certificate No.:IECEx SIR 07.0013X
 
Date of Issue:2011-05-10Issue No.: 8
 
Page 2 of 5
 
 Manufacturer:
Technolog Limited
Technolog House
Ravenstor Road
Wirksworth
Derbyshire DE4 4FY
United Kingdom


 
 Additional Manufacturing location(s):
 

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 : 2004
Edition: 4.0		Electrical apparatus for explosive gas atmospheres - Part 0: General requirements
IEC 60079-11 : 2006
Edition: 5		Explosive atmospheres - Part 11: Equipment protection by intrinsic safety "i"
IEC 60079-26 : 2006
Edition: 2		Explosive atmospheres - Part 26: Equipment with equipment protection level (EPL) Ga
 
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/SIR/ExTR07.0033/00GB/SIR/ExTR08.0040/00GB/SIR/ExTR08.0113/00GB/SIR/ExTR09.0055/00GB/SIR/ExTR10.0010/00GB/SIR/ExTR10.0024/00GB/SIR/ExTR11.0102/00


Quality Assessment Report:

GB/SIR/QAR06.0017/00GB/SIR/QAR06.0017/01GB/SIR/QAR06.0017/02


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IECEx Certificate
of Conformity
 
Certificate No.:IECEx SIR 07.0013X
 
Date of Issue:2011-05-10Issue No.: 8
 
Page 3 of 5
 
 
Schedule
 
EQUIPMENT:
Equipment and systems covered by this certificate are as follows:
 

The Cello 6 V2 Meter Reader is powered from a single Tadiran TL-6930 lithium cell and is primarily designed for connection to a gas meter, gas volume corrector or flow computer.  Communication with the Cello 6 is achieved either locally using an infrared link when in the non-hazardous area or remotely in either the non-hazardous or hazardous areas using the built in GSM communications for connection to the mobile phone network.  The equipment comprises:

 
* A partially encapsulated, processor printed circuit board (PCB) that incorporates a GSM Modem Module, a SIM card and connection for a remote antenna
* An interface PCB
 
CONDITIONS OF CERTIFICATION: YES as shown below:
 

1.

Under certain extreme circumstances, the non-metallic parts incorporated in the enclosure of this equipment may generate an ignition-capable level of electrostatic charge. Therefore, particularly when used in zone 0, the equipment shall not be subjected to external conditions that are conducive to the build-up of electrostatic charge on such surfaces. Additionally the equipment shall only be cleaned with a damp cloth.
 


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IECEx Certificate
of Conformity
 
Certificate No.:IECEx SIR 07.0013X
 
Date of Issue:2011-05-10Issue No.: 8
 
Page 4 of 5
 
 
EQUIPMENT(continued):
 

Connectors are provided to enable connection to simple apparatus and other, externally located, intrinsically safe equipment.  The Cello 6 V2 Meter Reader has the following safety description:

 
Port J3 & Port J4 combinedIsolated Ports J5 and J6
 Hazardous area installationNon-hazardous area installation
Ui = 7.9 VUo = 0Um = 250 V
Uo = 5.88 VUi = 30 VUo = 0
Io = 0.014 APi = 1.2 W 
Po = 0.020 WCi = 0Ci = 0
Co = 7.5 μFLi = 0Li = 0
Lo = 322 mH  
   
When the equipment is located in a non-hazardous area, the isolated output ports J5 and J6 permit connection to external unspecified apparatus, which may be intrinsically safe or non-intrinsically safe.  They also allow connection to intrinsically safe or simple apparatus when located in the hazardous area
   
The Cello 6 V2 LPG Meter Reader is similar to the Cello 6 V2 Meter Reader but has an additional board and only one user connection port.  Like the Cello 6 V2 Meter Reader, it is powered from a single Tadiran TL-6930 lithium cell, which is its only source of power
   
The single user connection port of the Cello 6 V2 LPG Meter Reader may only be connected to external equipment with no other source of power.  This port has the following safety description:
   
Port 7Port 7 (Issue 7) 
Ui = 0Ui = 0 
Uo = 5.88 VUo = 3.9 V 
Io = 0.167 AIo = 0.281 A 
Co = 900 μFCo = 400 μF 
Lo = 5 mHLo = 895 μH 
 
 
 


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IECEx Certificate
of Conformity
 
Certificate No.:IECEx SIR 07.0013X
 
Date of Issue:2011-05-10Issue No.: 8
 
Page 5 of 5
 
 
DETAILS OF CERTIFICATE CHANGES (for issues 1 and above):
 
Issue 1 - this Issue introduced the following change:
1The safety parameters were clarified.
Issue 2 - this Issue introduced the following change:
1The second edition of IEC 60079-26 was used for assessment, thereby introducing additions to themarking.
Issue 3 - this Issue introduced the following changes:
1The name of the original product was changed from the ‘Cello 6 Meter Reader’ to the ‘Cello 6 V2Meter Reader’, although this model has not been technically modified, the description was amendedfor clarity.
2The addition of an LPG interface board, the resulting model to be known as the ‘Cello 6 V2 LPG Meter Reader’.
3The value of C4 and C5 on the microprocessor board parts list C5Q7000 was clarified.
Issue 4 - this Issue introduced the following changes:
1The specification of Cinterion Wireless Modules TC65 GSM module as an alternative to the identical Siemens TC65.
Issue 5 - this Issue introduced the following change:
1The introduction of the Cinterion TC65i GSM module as an alternative to the Cinterion TC65.
Issue 6 - this Issue introduced the following change:
1To permit an increase in the Ui value at ports J3 & J4 to 7.9 V, with corresponding changes to related parameters, the previous values are listed below:
 Port J3 & Port J4 combined
 Ui = 5.88 V, Uo = 5.88 V, Io = 3 mA, Po = 4 mW, Co = 900 mF, Lo = 322 mH
 This change  does not affect the LPG version.  The marking and product description have been amended accordingly.
Issue 7 – this Issue introduced the following changes:
1The removal of the zener diodes, from the list of safety components, used for clamping the modem output lines, along with the associated fuses and Siemens TC65 modem option.
2The recognition of a change in the safety descriptions of the LPG version.
 Port 7
 Ui = 0Uo = 3.9 VIo = 0.281 APo = 0.261 WCo = 400 μFLo = 895 μH
3The introduction of alternative marking methods to include tamp printing and laser etching.
4To allow the use of Tadiran HLC1550A or HLC1550B hybrid layer capacitors as alternatives to the existing device.
Issue 8 – this Issue introduced the following change:
1The addition of a MAX8881 Adapter board, fitted as a replacement to U1 and C12 on the LPG add-on board C8E1000 was approved.
 
 








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