6.2.2 Installation of Hardware
Warning: Before installing any new hardware, turn off all power supplies to the HydroGuard.
6.2.2.1 Installing new Colorimeter Cap
1. Remove the existing colorimeter cap by lifting up
2. Remove the tubes from the DPD1 and buffer from the existing cap
3. Insert the DPD1 and Buffer tubes into two of the needles on the new cap
4. Press the new cap into place
6.2.2.2 Installing the Peristaltic Pump
1.
Attach the mounting plate of the pump to the mounting holes on the support board to the right of the
other two pumps, using the 4 supplied screws
2.
Route the pump wires to the main electronics box by following the wires from the existing pumps.
3.
Loosen or remove the screws holding the top of the conduit cover in place
4.
Push the wires into the conduit and feed through to the opening on the right
5.
Push the wires through an available opening in the rubber gasket (make sure to push through near the
final connection)
6.
Connect the wires to the Colorimeter board
7.
Find the section labeled "Buffer DPD Pumps"
8.
Connect the red and blue wires at the top two terminal connections (the connections are marked red
and blue)
6.2.2.3 Installing the Pump Tubing
1.
Remove the screws on the cover plate to the peristaltic pump
2.
Feed the pump tubing through the wheels on the pump, starting at the bottom
3.
Feed the bottom pump tube into the hole at the top of the reagent holder
4.
Connect the end of the top tube to one of the needles on the colorimeter cap by pushing firmly
6.2.2.4 Installing Reagent Holder and Float Switch
1.
Attach the Reagent Holder on the mounting board to the right of the other reagent bottle caps, using the
supplied screws
2.
Route the wires for the float switch through the conduit and to the electrical box by following the wires
from the existing float switches.
3.
Loosen or remove the screws holding the conduit cover in place
4.
Feed the wires through the conduit, following the path of the existing float switches
5.
Push the wires through an available opening in the rubber gasket (make sure to push through near the
final connection)
6.
Connect the wires to the Colorimeter board
7.
Find the section labeled "Reagent DPD Level"
8.
Connect the wires to the top two terminal connections (it doesn't matter which red wire goes into which
connector).
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