Ex db IIC T5 GbEx tb IIIC T100°C Db
-40°C ≤ Tamb ≤ +70 °C
IECEx ITS 10.0016X
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 Optical Encoders EXAG are small flameproof enclosures containing electronics. The encoder housing is manufactured from stainless steel, acid proof stainless steel or aluminium with a drive shaft in one end shield. The shaft can be either solid type shaft (EXAG-A) or hollow type shaft (EXAG-H). The body makes one cylindrical joint with the drive end shield on another side. Each end shield (the drive end and the non-drive end) is secured to the body with six M4 counter bored socket head cap screws. O-rings are fitted to each cylindrical joint. There is a shaft seal on drive end seal, where two ball bearings are mounted to the cylindrical joint between the shaft and the drive end shield.The encoder housing can be provided with up to four M20x1.5, M25x1.5, 1/2"NPT or 3/4"NPT threaded entries on the non-drive end shield. These threaded entries are closed with the suitable separately IECEx certified cable glands. All unused entries must be closed with suitable separately IECEx certified blanking elements.The apparatus is rated at 300 mA maximum current and voltage range from 10 V dc to 30 V dc.
Rated speed for type variants with seal max 3000 rpm, without seal max. 6000 rpm.
Max. permissible load on the shaft: axial 60 N and 80 N radial.
Additionally the encoders meet IP64/65/66/67 in accordance with EN 60529.
It is a condition of certification that the flame paths have to comply with the manufacturers drawings and can only be repaired by the manufacturer.
It is a condition of certification that the precautions must be taken to avoid dust from forming layers on the encoder. The fasteners used to secure enclosure body to end shields shall have a minimum yield stress of 450 MPa.
Use only suitably certified Ex db IIC Gb and Ex tb III C Db cable glands, thread adapters and blanking elements.
Change of address from "Tranevang 1, 3450 Alleroed, Denmark" to "Huginsvej 8, DK-3400, Hilleroed, Denmark".
Extend the ambient temperature range to -40°C.
Upgrade to IEC 60079-0 Edition 6, IEC 60079-1 Edition 7 & IEC 60079-31 Edition 2.
1. Inclusion of new type of rotary seal.2. Increase in maximum gap of both end cover cylindrical joints from 0.08mm to 0.1mm.3. Minor drawing changes not compromising the IECEx certification.
Change of QAR from DE/TUN/QAR12.0002/02 to GB/EXV/QAR17.0015/00.