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Chapter 6: Cautions regarding Explosion-Proof Models
[8. IECEx flameproof]
IECEx Flameproof Certifications
1. Marking information
IECEx KEM 06.0015X
Ex db IIC T6 Gb −40°C ≤ Tamb ≤ +75°C IP66
2. Applicable standards
-IEC 60079-0: 2011 Electrical apparatus for explosive atmospheres - Part 0:
General requirements
-IEC 60079-1: 2014 Electrical apparatus for explosive atmospheres - Part1:
Flameproof enclosure “d”
3. Special conditions for safe use
- The gap between the rotary shaft and bearing is 0.055mm max. and the width is 14.1mm min..
- The gap between the enclosure and the sensor housing is 0.113mm max. and the width is 19.9mm
min..
- The terminal cover has at least 7.5 engaged threads.
- The screw used to assemble the flange to the Ex d housing shall be of class A2-50.
4. Instruction for safe use
4.1 Do not open when an explosive atmosphere is present.
4.2 Use supply wires and cable glands suitable for 5°C above surrounding ambient temperature.
4.3 Cables glands or conduit sealing devices used must be certified for the IECEx.
4.4 Explosion protection mentioned above in item 1 and suitable for the application temperature.
4.5 Blanking element devices used must be certified for the IECEx explosion protection mentioned
above in item1 and suitable for the application temperature.
4.6 While this product is shipped with the IECEx certified blanking element only to avoid ingress of
solid foreign objects and water during transportation, the certification of this product does not
include the banking element.
4.7 If thread adapters are used these must be certified for IECEx protection mentioned above in item 1
and suitable for the application temperature.
4.8 External grounding connection facility:
- The cable lug should be used so that the conductor with a cross-sectional area of at least 4mm
2
is
secured against loosing and twisting and that the contact pressure is permanently secured.
- The cable lug should be between the flat washers.
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