I/O Wiring - Hach Anatel PAT700 User Manual

Installation

2.5.2 I/O wiring

Table 3
J17 Block Terminal
1
2
3
4
5
6
Page 24
The analyzer has three 4-20 mA outputs, two discrete inputs, and four discrete outputs.
Connect wiring to the connector blocks located on the I/O circuit board.
• The connector blocks are a 2-part assembly.
• The terminal block connector can be unplugged from the analyzer for easier
installation of wiring.
• Install twisted-pair unshielded wiring, 18 to 14 AWG (1.0 to 2.5 mm
4-20 mA outputs
The analyzer has three 4-20 mA outputs. Wiring connects to terminals on connector
block J17, as listed in Table
• Analog output 1 represents TOC (total organic carbon).
• Analog output 2 represents conductivity or resistivity (user selected).
• Analog output 3 represents temperature in °F or °C (user selected).
J17 connector block
Description
4-20 mA source output for analog output 1 (+)
4-20 mA sink output for analog output 1 (–)
4-20 mA source output for analog output 2 (+)
4-20 mA sink output for analog output 2 (–)
4-20 mA source output for analog output 3 (+)
4-20 mA sink output for analog output 3 (–)
3.
: 4-20 mA output wiring terminal designations
2
).
Variable
TOC
TOC
Conductivity or resistivity
Conductivity or resistivity
Temperature
Temperature
Designation
AO1+
AO1-
AO2+
AO2-
AO3+
AO3-