Grundfos Conex DIA-2 Installation And Operating Instructions Manual page 25

Peculiarities for the connection at the control
panel enclosure of Conex
1. First connect the measuring cells, the single-rod
measuring chains and the water sensor (if present)
to the separate sensor interface.
2. Secondly, connect the sensor interface to the
®
Conex DIA-2 control panel enclosure.
Connecting the sensor interface to the Conex
DIA-2 (see back side of device)
• Measuring cells
AQC-D1/-D11/AQC-D2/-D12/AQC-D3/-D13/ HP
(peroxide)
Connect terminals 4/1 to 4/14 of the sensor
interface to the corresponding terminals of the
®
Conex DIA-2.
• Measuring cells HP (peroxide)
In addition, connect terminal A to terminal 1/1
and terminal B to terminal 1/2 of the Conex
DIA-2.
• Single-rod measuring chains (pH)
Connect terminals 3/1 to 3/4 of the sensor
interface to the corresponding terminals of the
®
Conex DIA-2.
• Sample-water deficiency sensor
Connect terminal A to terminal 2/3 and terminal B
to terminal 2/4 of the Conex
When using measuring cell AQC-D2/-D12,
Note
the water sensor must always be
connected and activated!
DIP switch
• If necessary, set the DIP switch for the desired
measured value to "On" (move the switch to the
right, top switch 1 is not used).
DIP
On
OFF
1
ClO , O
2
2
3
4 Cl
2
Fig. 24 DIP switch
®
DIA-2
®
®
®
DIA-2.
3
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