FW_F133P_v1702_02_EN
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Label information pulse input type
– F1xx-..-..-XI (inside and outside the enclosure)
Fig. 23: Label information - Intrinsically safe application (typical)
5.2.
TERMINAL CONNECTORS INTRINSICALLY SAFE APPLICATIONS
The unit is classified as group IIB/IIIC by default.
Classification of the unit as group IIC is only possible under the following conditions:
The indicator is either supplied by
the internal supply (option -PC);
the external supply connected to terminals 0 and 1 (option -PD);
the circuit supply connected to terminals 7 and 8 (option -AP);
The maximum values for any of those circuits are those as defined for group IIB/IIIC;
No other active external Intrinsically safe circuits may be connected to the indicator, with
exception of circuits connected to terminals 3 and 4 and/or terminals 5 and 6; the maximum
values for any of those circuits are those as defined for group IIB/IIIC.
