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1
Sample loop (per QuikChem method)
2
30 cm
1
3
20 cm
1
Suggested length. Port 3 tubing needs to be long enough to reach from the valve to the manifold. No minimum length is
required.
4.7.1.1 Injection valve tubing FAQs
4.8 Inert probe
All Teflon tubing is 0.8 mm ID. The 130 cm piece of Teflon tubing is connected to the
probe on the sampler. Connect the 20 cm piece of tubing to port 6 of the valve.
5
5
4
Figure 46 Tubing length requirements
Is the length of tubing critical?
The tubing length is critical for the sample path. Run the dye as a sample to determine
the sample path. The length of the reagent lines is not critical.
What is the permissible error when measuring tubing?
±2 mm for every 50 cm of tubing.
Allowed error (mm) = (Tubing length 50) X 2
The probe supplied with the system is made of stainless steel. This probe is used to run
with most of the methods. However, some methods require an inert probe made out of
Teflon or other inert materials. Refer to the system notes in the QuikChem method for this
information.
1
1
6
2
4
3
3
4
15 cm
5
30 cm
Operation
2
45
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Troubleshooting
