Hach ANATEL PAT700 - Wiring Connections for PAT700 with Quick-Connect Fittings

WGM - 28 November 2007 - Edition 01
PAT700 Total Organic Carbon Analyzer – Installation Page 21
Anatel Operator Manual
• Discrete output 3 reports a warning or failure condition. A low state indicates an error
condition exists. A high state indicates no error conditions exist.
• Discrete output 4 reports a TOC analysis start (by indicating the state of the sample
inlet valve). A low state indicates the sample valve is closed. A high state indicates the
sample valve is open.
2.5 Wiring connections for PAT700 with quick-connect fittings
Refer to this section if the PAT700 has five quick-connect fittings, as illustrated in Figure 2-10.
• One connector accommodates power supply wiring.
• The other four connectors accommodate 4-20 mA or discrete I/O wiring.
• The analyzer comes with factory-supplied mating connectors and a plug-in cord for
power supply wiring.
Table 2-5
J22 connector block: Discrete output wiring terminal designations
J22 Block Terminal Description Variable Designation
1 Digital output 1 (+) TOC alarm DO1+
2 Digital output 2 (+) Uncompensated
conductivity alarm
DO2+
3 Common return for discrete outputs 1 and 2 (–) TOC alarm,
uncompensated
conductivity alarm
DO1/2–
4 Digital output 3 (+) Warning or failure DO3+
5 Digital output 4 (+) TOC analysis start DO4+
6 Common return for discrete outputs 3 and 4 (–) Warning or failure,
TOC analysis start
DO3/4–
7 • 12 VDC power supply +
• Connect only if input device requires power supply
Input power supply +12V
8 • 12 VDC power supply –
• Connect only if input device requires power supply
Input power supply GND