Instruction manual

2.3 Connecting Peripherals

2.3.1 Connection Terminals

Remove Back Cover:

Remove the screws from the four corners at the back of the conductivity

controller. Remove the back cover. The connectors are exposed on the

back PCBA as shown in the Figure 1 below.

Connectors:

• J11 – 24V DC power connector

• J8 – 9V DC power connector (1.2mm diameter)

• J9 – Relay connections

• J10 - Conductivity electrode & Temperature probe connections (wiring

has to be done in the detachable connector

J10

REL 1

REL 2

9V DC Power

Screw

Figure 1: Outer Side of Back PCBA

J11 Connections

1. +ve

2. Gnd

J10 Connections

1. CON Low Current

2. CON Low Voltage

3. CON High Voltage

4. CON High Current

5. Pt 100 Compensate

6. Pt 100 Sense

7. Pt 100 GND

8. (No connection)

J9 Connections

Relay 1 & 2

1)+ve

2)Gnd

24V DC

J11