Owner's manual

M67, M67S Manual
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14. Appendix
14.1 Accessories (electrical)
14.1.1 FM approved model
The model M67 “Infraducer” has been approved by Factory Mutual (FM) for usage in hazardous environments. When used in
conjunction with the optional barriers, the entire system will be rated intrinsically safe. Approvals are for Class I. II or III,
Division 1, Group A, B, C, D, E, F and G. At the time of order please specify that the FM approved version is required. See
Figure 26 for wiring.
Figure 26 - M67FM Wiring.