Process Valve Networking Monitoring and Control




Control Monitors     

Position Transmitters    


Check Valves

High Temperature Butterfly Valves

Product Selector

Product Selector (Check Valves)




Food and beverage

Oil and Gas


Automotive test

Fire protection



ATEX Certificates

IECEx Certificates

cCSAus Certificates

Product Code Selectors


K Controls Ltd

Pit Hey Place,

West Pimbo,


Lancashire WN8 9PG

United Kingdom

INMETRO Certificates

INMETRO certified products are marked with the following information.

  • Product family name i.e. 007 Position Monitor

  • 'Model' number

  • 'INMETRO Certificate' number

  • Certificate 'Type' number

  • Serial number

  • Year of manufacture

  • Certification class - e.g. Ex ia IIC, Ex d IIC and Ex tb IIIC

  • Ambient temperature range

  • Electrical ratings Umax, Imax, Wmax.

The INMETRO certificate for a family of products lists the safety parameters for each product 'Type',e.g.

  • Intrinsically safe products certified Ex ia IIC - Type SS-P-IEC
  • Flameproof Ex d products certified Ex d IIC - Type SC6.1, C4.3 ....
  • Dust certified Ex tb IIIC

The product 'Type' defines the variants of switch, sensor and potentiometerwhich combine to satisfy the certification class and safety parameters detailed on the label and on the certificate.

The 'Model' number noted on the product label defines precisely the options available, not all of which affect certification. These include cable entry type and size, drive format, number and type of switches, sensors etc, material of construction and finish as well as certificate type. Products should be ordered by 'Model' number and not 'Type' number.

NOTE: The 'Model' number is referred to on the product label as shown adjacent.

Typical INMETRO Ex d flameproof product certification label
INMETRO certified Intrinsically safe and Flameproof products

 DVN 13.0010   (007-100 Ex d Position Monitor)

 DVN 13.0011   (007-120 Ex d Position Monitor)

 DVN 13.0012  (007-100 and 007-120 EX ia Position Monitors)