User manual

PAT700 Total Organic Carbon Analyzer – Installation Page 19
Anatel Operator Manual
2.5 Wiring connections for PAT700 with conduit openings
Refer to this section if the PAT700 has three 3/4-inch female NPT conduit openings.
• One opening accommodates power supply wiring.
• The other two openings accommodate 4-20 mA and/or discrete I/O wiring.
• Power supply and I/O wiring connects to terminals in the compartment behind the
analyzer’s display unit. Figure 2-9 illustrates power supply and I/O wiring terminals. To
access the terminals:
1) Use a 5/16-inch Allen wrench to unlatch the door that contains the display.
2) Unlatch the door and swing it open on its hinges.
Figure 2-8 Using Allen wrench to access wiring connections
Figure 2-9 PAT700 power supply and I/O wiring terminals
Power supply wiring
compartment (terminals are
behind door)
4-20 mA output wiring terminals
(connector block J17)
Discrete input wiring terminals
(connector block J24)
Discrete output wiring terminals
(connector block J22)
I/O circuit board