DS-TACHO-2
TECHNICAL REFERENCE MANUAL
IEC 61326-1 applies to this part of IEC 61326 but is limited to systems and equipment for industrial
applications intended to perform safety functions as defined in IEC 61508 with SIL 1-3.
The electromagnetic environments encompassed by this product family standard are industrial, both
indoor and outdoor, as described for industrial locations in IEC 61000-6-2 or defined in 3.7 of IEC 61326-1.
Equipment and systems intended for use in other electromagnetic environments, for example, in the
process industry or in environments with potentially explosive atmospheres, are excluded from the
scope of this product family standard, IEC 61326-3-1.
Devices and systems according to IEC 61508 or IEC 61511 which are considered as “operationally
well-tried”, are excluded from the scope of IEC 61326-3-1.
Fire-alarm and safety-alarm systems, intended for the protection of buildings, are excluded from the
scope of IEC 61326-3-1.
DS-TACHO-2 V20-1 14/15
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