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New: ATEX certification of RHEINTACHO mechanical tachometer family

23 August 2018

After an intensive period of 12 months, the RHEINTACHO family of eddy current tachometers 
including an optional gearbox, has now been approved by our notifying body CML according to Annex II of the Potentially Explosive Atmospheres Directive 2014/34/EU for all EU countries and the UK. 

ATEX approved Eddy current tachometer
ATEX approved Eddy current tachometer

The project was initiated by market requests of potential customers requiring an intrinsically safe tachometer for special applications. At first, the decision had to be made as to which products would be submitted for certification. After initial discussion, the decision was made to certify the complete range of products to provide our customers with maximum flexibility in their selection of the specific products in connection with their applications. 

An initial preliminary check at the notifying body led RHEINTACHO to believe that the effort involved in the preparation of the products for approval would be almost negligable.

However, this soon proved to be quite an inaccurate estimate. As the products are well-proven in design and function, they have been available for years now. Unfortunately, all products within the range had to be redrawn digitally, new bills of materials had to be created which included detailed information about the materials used. 

Much of this information had to be asked for at suppliers, some of whom are often reluctant to disclose the information. But after all the material information had been collected and the products redrawn, we were ready to submit the documents along with some sample products to our notifying body for thermal testing.

It had to be proven that the operation of our tachometers and gearboxes did not create any hazardous sparks or heated up to a temperature considered hazardous. These tests were passed and with only some slight reformulation of operating and installation instructions and information, the product range was certified. 

Eddy current tachometer
Eddy current tachometer

Now the product groups M, MF, ML and MLF are available in ATEX versions. And another big  advantage for RHEINTACHO customers is the possible intrinsically safe use of our gearboxes in connection with our tachometers. 

There are now 12 different models in 4 different product type categories which RHEINTACHO customers can choose from with or without the integration of various gearboxes. 

These mechanical tachometers are used in various industries including fueling and refueling of aircraft, paint production as well as paper and pulp production. 

For further information, please contact RHEINTACHO at sales@rheintacho.co.uk or call us at +44 (0)113 287 3311. 


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