Electrical connections, 3 electrical schematics – KROHNE DW 181-182-183-184 ATEX EN User Manual

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ELECTRICAL CONNECTIONS

DW 18 SERIES

www.krohne.com

11/2011 - 4001528201 - AD ATEX DW181-184 R01 en

3.3.3 Electrical schematics

Figure 3-1: Electrical schematics for Ex ia-approved equipment (switch options)

1 K1: 1 × N/O (normally open) switch
2 K1: 1 × N/C (normally closed) switch
3 K2: 2 × N/O switches
4 K2: 2 × N/C switches
5 K2: 1 × N/O and 1 × N/C switches
6 K2: 1 × N/C and 1 × N/0 switches
7 K1 changeover: 1 × 3-wire SPDT switch
8 K2 changeover: 2 × 3-wire SPDT switches