ATEX certficatoin

[amshah]

Can any one hemp me to understand process of ATEX certifications,

1) Atex certification is Type approval type.

2) Then after for each instrument production, it is not required to be sent for certfication but involving a approved body who will check your internal reports and confirm for ATEX ?

Does it mean that after taking initial Type Approval for ATEX, each instrument (Product) is required to be certified for Atex approval by notified body or notiry body will only Audit the test reports of Each instrument or some thing extra !!!.

If some one can elaborate or provide documentation for the same !!!!!!!!

[aseptman]

me too need to know pl explain

[explosion]

Can any one hemp me to understand process of ATEX certifications,

1) Atex certification is Type approval type.

2) Then after for each instrument production, it is not required to be sent for certfication but involving a approved body who will check your internal reports and confirm for ATEX ?

Does it mean that after taking initial Type Approval for ATEX, each instrument (Product) is required to be certified for Atex approval by notified body or notiry body will only Audit the test reports of Each instrument or some thing extra !!!.

If some one can elaborate or provide documentation for the same !!!!!!!!

I am new here but I am working for a manufacturer of ATEX related devices - is help still needed, please answer or send me a message, as the matter is difficult and several different levels are possible.

[amshah]

Dear if u can explain in dewtail will be very helpful to me.

[explosion]

Trying to explain what ATEX means:
First of all, there are two European directives: 94/9/EG and 99/92/EG; often the first is mentioned as ATEX but this is not an official definition, it comes from the French word Atmosphere explosive.
This directives deal with dust as well as gas explosions; the first and older one is important for the manufacturer, the second one for the user.
The first one here:

[link Point to another website Only the registered members can access] In this directive there is a grouping of devices into classes, 1, 2 or 3, which are meant to be used in zones 0, 1 or 2. So if you have a zone 0 in field (this according to the probability of the presence of explosive atmosphere) only class 1 devices are allowed. In any case the device must be CE marked and have a CE declaration of confomity, both done by the manufacturer. Besides thís system of devices there are also protective systems which are foreseen to be used in any zone.
Depending on the intended use = class of device the ATEX defines modules which apply to each class of devices. These must be fulfilled or done by the manufacturer to allow him to put the CE mark on his product and issue the CE declaration of conformicy.
For example for protective systems and class 1 devices the manufacturer needs
- an additional regulary quality system check which is related to explosion protection; ISO 9001 is not sufficient but necessary as with that you are allowed to make mistakes if that is reproducable. EX-QS does not allow such mistakes; only very few institutes are accepted to do this QS check;
- prototype testing by a Notified Body (Third Party test house which is registered, certififed etc. to do that tests) with a EC type approval as result. This testing can be done according to certain standards (e.g. EN ISO 16852 for flame arrester = protective systems) if this standard is recognized to fulfill the ATEX requirements. I am working in a standardization group so I am involved in creating this standard. If there is a special problem or situation which is not covered by a standard but falls into ATEX the test house may set up the rules for testing, issue a type approval for this special situation and grant the manufacturer the use of the CE mark.
With these two elements, EX-QS certificate and EC type approval, the manufacturer is free to produce without further control, as long as there are no deviations to the prototype once tested.
For products of classes 2 or 3 the requirements are less stringent but this is again a lengthy discussion.
If you need more information just come back and I will try to help you further.
Regards,
explosion

[explosion]

Dear if u can explain in dewtail will be very helpful to me.

My reply was caught by Mods; no idea if it will be published ever

[amshah]

My reply was caught by Mods; no idea if it will be published ever

Moderator please help!!!!!!!!!!1

[ummux]

My new products are cert the ATEX 'Ex ia' marking. In simple, your critical product design/manufacturing/installation manual documents and your protection method are assessed by NB, if they approved your design with assessment and/or testing, they inform you for an auditing in order to file you ATEX QAN. If your manufacturer passed the Quality audit (ISO 9001-2008 cert perferred), they file you both ATEX QAN and ATEX EC-type Examination.--In this EX-type, they grant your product legal marking and you are OK to produce your products with legal mark label. For complete product they also issue you with a CE mark, or if component, CE are not marked. For ATEX QAN renewal, every three years you appoint your NB for audit (normally two days, in our case). If you also apply IECEx the renewal is required for 18 month. If you are applying UL or CSA, the auditing is again all different. Another thing you need to be carefully, after you obtained your marking, all the listed ("controled") documents must be followed--no modification on design or manufacturing procedure can be made unless NB is informed and assessed. Good Luck!