Varec 4000 - Manual (Page 43)

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4000 Specifications
5.2 Safety Agency Approvals
5.2.1 Explosion Proof
The HART Level Encoder is designed to meet the following safety agency approval requirements for explosion proof
installations:
5.2.2 Intrinsic Safety
The ATT is not an intrinsically safe device and must not be opened or wired while power is applied.
Agency Acronym Agency Requirement
(FM) Factory Manual Approval StandardClass
3600, 3615, 810
(CSA) Canadian Standards Association Standard C22.2No. 0.0, 0.2,
0.4, 0.5, 14, 30, 94, 142
(BASEEFA) CENELEC CENELEC StandardEN50014,
EN50018
(UK) British StandardBS5501, Part
1, 5