Thermo Scientific DCT6088, User Manual

Page: 39 / 121

Wiring
Relay Terminals
2. Refer to the self-powered or loop powered configuration figure below
for wiring.
Figure 3–3. Self-powered current loop configuration
Figure 3–4. Loop powered current loop configuration
Relay Terminals
Up to four relays may be installed in the instrument. The relays are rated at
5 A, 250 Vac. Each relay contains a normally open and normally closed dry
contact accessible at the terminal blocks. The terminals for the relay are
labeled on the module as NO (normally open), C (common), and NC
(normally closed). When the relay is energized, the C terminal is shorted to
the NO terminal (refer to Figure 3–5). When the relay is at rest, the C
terminal is shorted to the NC terminal.
Figure 3–5. Relay schematic
Thermo Fisher Scientific DCT6088 User Guide 3-5