Hach QuikChem 8500 2 Series Operations page 7

Figure 4 Pump and pump flow symbols
1 Sample (green or purple)
2 Carrier
3 From water pump tube
Reagent line representation
The reagents and sample lines are shown by a straight line that goes across the rectangle. Refer to
Figure 5. The specified color is the color of the pump tube tabs to use for that line. All pump tubes
have different color tabs on each side to show the inner diameter of that tubing. The reagent tubing
has a label that shows the solution that goes through them. The carrier tubing is always connected to
port 2 of the valve. The sample tubing is always connected to port 6 of the valve.
Figure 5 Reagent line representation
1 Sample (green)
2 Carrier
Tee connector symbol
Every intersection of two reagent tubes shows a tee connector. Refer to
mix two reagents. The tee has three ports. Two side ports (inlets) are connected to two reagent
tubes. The top port (outlet) can be connected to a mixing coil or an item shown in the manifold
diagram.
4 To wash bath fill
5 Color reagent
6 Pump tube (color)
3 Pump tube (color)
4 Color reagent
Figure 6. Tee connectors
English 7