Hach QC8500 Series 2 User Manual page 36

Operation
Coil support (inches)
Alternating
1
The alternating coil support has 6 holes. When wrapping the tubing on the coil support, change the tubing direction (to the right
or left) every time the tubing is passed through a hole.
4.2.1.3 Injection valve symbols
34
Table 6 Coil support tubing lengths
1
2
2.5
4
8
1
Note: Refer to the QuikChem method to obtain the correct length of tubing needed for the analysis.
Some manifold diagrams have all dimensions in the metric system.
The injection valve (Figure
System Unit. The numbers around the hexagon represent the six ports on the valve. The
zig-zag or coil symbols represent sample loops. This is the tubing connected between
ports 1 and 4. The length of this tubing is specified on the manifold diagram. Read the
notes for the QuikChem FIA System in the method. The lines coming out of the hexagon
represent the Teflon tubing connected to the valve ports.
2 3
1
6 5
Figure 31 Injection valve symbols
31) will be located on the left side of every channel of the
2 3
4 1
6 5
Tubing (cm)
70
135
168
255
550
255
4