Certificate history:
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.
This Unit verification certificate is issued as verification that the Apparatus identified on page 1, was assessed and tested and found to comply with the IEC Standard list below. 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:
As this is a Unit Verification Certificate, no QAR is applicable as this certificate is specific to the items listed by serial number or other unique identification.
The heaters type DHF … and DHG … are designed for direct or indirect heating liquids or gas/air in hazardous areas of zone 1 and 2 respectively zone 21 and 22.The heater type DHK … is designed for indirect heating of liquids or gases in hazardous areas of zone 1 and 2 respectively zone 21 and 22. The heating elements are encapsulated with a solid body.
The heater consists of a flameproof enclosure and optional of a terminal connection box in type of protection increased safety.
The used empty enclosures type sizes A, B and C are separately certified by "U" signed CoC's.
Remarks for marking
Enclosure type A, B: Ex de IIC or Ex d IICEnclosure type C: Ex de IIB+H2 or Ex d IIB+H2
Conditions of Certification see attachment.
