Hach PAT700 DS, Basic User Manual

Page: 12 / 192

Table 2 4–20 mA terminal designations
Connector Terminal Description Variable Designation
1 4–20 mA source output for analog
output 1 (+) TOC from Stream
1 (configurable) AO1+
2 4–20 mA sink output for analog
output 1 (–) TOC from Stream
1 (configurable) AO1–
3 4–20 mA source output for analog
output 2 (+) Conductivity or resistivity from
Stream 1 (configurable) AO2+
4 4–20 mA sink output for analog
output 2 (–) Conductivity or resistivity from
Stream 1 (configurable) AO2–
5 4–20 mA source output for analog
output 3 (+) Temperature from Stream
1 (configurable) AO3+
6 4–20 mA sink output for analog
output 3 (–) Temperature from Stream
1 (configurable) AO3–
7 —
8 —
Connect the discrete inputs
Table 3 shows the discrete input designations for the quick-connect connector.
Table 3 Discrete input designations
Connector Terminal Description Variable Designation
1 Common connection for external source
(+) Common DI1/2+
2 Digital input 1 (–) Start a single TOC analysis DI1–
3 Digital input 2 (–) Stream selection DI2–
4
1
12 VDC power Output power supply +12 V
5 12 VDC power supply – Output power supply GND
1
Connect terminals 4 and 5 only if the input device requires a power supply.
Connect the discrete outputs
The terminal designations for the discrete output quick connections are shown in Table 4 and
Table 5 .
12 English