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SERIES 3000 MKII TECHNICAL MANUAL
S3KMKIIMAN MAN0878 issue 13 04/23
22. Certification
The Series 3000 MkII main unit is available in 6 versions: ATEX/UKEX/IECEx approved version (Aluminium
version part number S3KAL2, Stainless Steel version part number S3KAS2) and UL/CSA approved
version (Aluminium version part number S3KUL2, Stainless Steel version part number S3KUS2) and
Inmetro approved version (Aluminium version part number S3KNL2, Stainless Steel version part number
S3KNS2). The remote sensor accessory has both ATEX/UKEX and UL/CSA approval on the same part
(part number S3KRMK). The following sections detail the approvals and certification nameplates.
ATEX/UKEX/IECEx Special Conditions of Use
S3KX***** Series EC Cartridges
When installed in the Series 3000 MkII Transmitter, the Transmitter's Tamb rating of -20°C to +55°C must
be observed. When the Cartridge is installed remotely using the S3KRMK, a Tamb of -40°C to +55°C is
permissible however "W03 Sensor Operating Limits Exceeded" will be issued when temperatures are
outside limits published in Sec 17. General Specifications.
S3KRMK Remote Mount Sensor Kit
The enclosure of the S3KRMK contains aluminium. Care must be taken to avoid ignition hazards due to
impact or friction when installed in Zone 1 locations.
Intrinsic Safe Information for Capacitance and Inductance
For installations in which both the Ci and Li of the intrinsically safe apparatus exceeds 1% of the Co and
Lo parameters of the associated apparatus (excluding the cable), then 50% of Co and Lo parameters are
applicable and shall not be exceeded. The reduced capacitance of the external circuit (including cable)
shall not be greater than 600 nF for Group IIC. Be aware that the sensors and S3K-RMK Remote Sensor
Accessory listed in this manual meet these requirements.
Flameproof Joints
The flameproof joints are not intended to be repaired.
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