Ex db IIC T5 Gb
Ex tb III C T100°C Db
* -50°C applicable to magnetic version only
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.
The 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 Incremental Encoder types SCA86EX, SCH86BEX, SCH86FEX are small enclosures manufactured from stainless steel or aluminium available in a “U”-shape with removable end or in a “drop-shape” with non-removable end cap version with approximate dimensions of 70mm x 86mm x 130mm. These enclosures are populated with electronics and have a shaft passing through the main body. The shaft may be solid or hollow and with one or two ends free. The encoder designations detail the type of shaft used as follows; SCA86EX – Solid Shaft, SCH86BEX – Hollow Shaft, SCH86FEX – Hollow Shaft. The enclosures comprise of cylindrical flamepaths between the Housing & End Cap, End Cap & Cover (when “U”-shaped enclosure used). The rotating shaft also forms a cylindrical flamepath through the housing controlled by k & m factors and is held in place with 2 precision roller element bearings. The enclosure is provided with either one or two threaded cable entries which are fitted with either a certified M20 or M25 cable gland. Alternatively the equipment can have either one or two holes in NPT size ≤ 3/4”. Both internal and external earthing is provided.
Note: Optionally the encoder can be fitted with an optical transmitter - the optical radiation output of the apparatus with respect to explosion protection is covered in this certificate based on Exception 3) to the scope of IEC 60079-28:2015.
Warning label amendment.Removal of reference to pcb types from ordering code.
Change of addresss from "Tranevang 1, 3450 Alleroed, Denmark" to "Huginsvej 8, DK-3400, Hilleroed, Denmark".An additional material for the label has been added and a new PCB layout option for the terminal block PCB.Rationalisation and improvement of Conditions of Certification.Clarification of equipment description.
Reduction of wall thickness for through shaft.Addition of NPT threaded option.Minor changes to drawings.
Inclusion of new type of rotary seal.Inclusion of an optical transmitter version of the encoder.Update of IEC 60079-1 from Ed. 6 to Ed. 7.Update of IEC 60079-31 from Ed. 1 to Ed.2.Minor drawing changes not compromising the IECEx certification.
Addition of new magnetic version of the encoder.Reduction of lower ambient from -40°C to -50°C (SC86EX magnetic version only). Update from IEC 60079-0:2011 Ed 7 to IEC 60079-0:2017 Ed 7.Minor drawing changes not compromising the IECEx certification.