Ohaus DEFENDER 5000 BENCH SCALES Relay Option Kit Manual multi - Manual (Page 5)

Relay Option Kit EN-3
Figure 2.1 Wire Preparation
• The relay connections provide a switch closure only. AC or DC power must be
supplied externally.
• Each relay output has a terminal block with two connections. See Figure 2.2, for
the relay contact diagram.
- The AC relay pc board can only be used with AC circuits.
- The DC relay pc board can only be used with DC circuits.
Figure 2.2 Relay Contact Diagram.
• Connect each wire pair to the appropriate set of terminal block connections.
• For the DC relay pc board, make sure the polarity is correct.