Kobold DON -2/4, Operating Instructions Manual

Page: 41 / 65

DON
DON K36/1222 page 41
16.1.5 Troubleshooting
No changes may be made to products that are operated in connection with
potentially explosive areas. Repairs to the product may only be carried out by
specially trained and authorized specialists.
16.1.6 Disposal
The packaging and used parts must be disposed of in accordance with the
regulations of the country in which the product is installed.
16.2 ATEX version Exi (electronics options xA)
While evaluating the product, following Norms were considered:
a) EN IEC 60079-0: 2018 Ed. 7 Hazardous areas - Part 0: Equipment - General
requirements
b) IEC 60079-11: 2011 Ed. 6 + Corr. 2012 / EN 60079-11: 2012 Hazardous
areas - Part 11: Equipment protection by intrinsic safety "i"
c) EN ISO 80079-36 2016 Explosive atmospheres - Part 36: Non-electrical
devices for use in explosive atmospheres - Basics and requirements.
d) EN ISO 80079-37 2016 Explosive atmospheres - Part 37: Non-electrical
equipment for explosive atmospheres – Non electrical type of protection
constructional safety "c", control of ignition source "b", liquid immersion "k"
16.2.1 General information on explosion protection
The electrical connection is made via a plug in a separate inductively coupled
electronics compartment - exclusively in intrinsically safe systems. The electronics
option HA is combined with the electronics models ZOK-E * M (compact version)
or ZOK-E * K (remote electronics) in accordance with LOM 16 ATEX 2062 to form
the electronics options 1A, 2A, 3A and 5A.
Permitted use
The intrinsically safe flow meter can be used as follows:

In Zone 2 (Gas-Ex, Category 3G, EPL Gc) in explosion groups IIA, IIB and IIC.

The requirements for simple electrical equipment in intrinsically safe circuits in
Zone 1 according to EN 60079-11 are met for various versions.

The qualification with regard to the surface temperature is T4 / T3; for all gases,
vapours and fog with an ignition temperature ≥ 135 ° C / ≥ 200 ° C, the products
are not an ignition source.

The permissible ambient temperature range is from -20 ° C ≤ Ta ≤ 80 ° C.
In accordance with the installation regulations, housing must be grounded using
the earthing clamps. The maximum connection cross-section is 4 mm
2
.