Hach QuikChem 8500 2 Series Operations page 8

Figure 6 Tee connectors symbols
1 Tee connector fitting
2 Tee connector symbol
Heater block symbol
Figure 7 shows a heater block installed on the system unit. Set the heater at the temperature
specified in the diagram (60 °C (140 °F) in the example). The QuikChem method shows the length of
tubing to wind on the heater block.
Figure 7 Heater block symbols
Injection valve operation
The valve has a stator and a rotor. Refer to
through the pathways. The alignment of the pathways with the ports on the stator control the
direction in which the liquid flows through the valve. Refer to
injection valve. The injection valve has two positions: the inject position and the load position. Refer
to Inject position on page 9 and
between those two positions. When the system is not in operation, the valves stay in the inject
position.
Figure 8 Stator and rotor
1 Stator
8 English
3 Alternate symbol
Figure 8. The rotor has three pathways. The liquid moves
Load position on page 9. The valve moves bi-directionally
2 Rotor
Table 1 for the ports on the six-port