Hach AS950 Grundlegende Installation Und Wartung Seite 14

5.3 Plumb the sampler
Install the intake tube in the middle of the sample stream (not near the surface or bottom) to make
sure that a representative sample is collected.
1. For a sampler with the standard liquid detector, connect the tubing to the sampler as shown in
Figure 7.
Note: When Teflon-lined tubing is used, use the tubing connection kit for Teflon-lined PE tubing.
2. For a sampler with the optional non-contacting liquid detector, connect the tubing to the sampler
as shown in Figure
Note: When Teflon-lined tubing is used, use the tubing connection kit for Teflon-lined PE tubing.
3. Install the intake tube and strainer in the main stream of the sample source where the water is
turbulent and well-mixed. Refer to
• Make the intake tube as short as possible. Refer to
intake tubing length.
• Keep the intake tube at a maximum vertical slope so that the tube drains completely between
samples.
Note: If a vertical slope is not possible or if the tube is pressurized, disable the liquid detector. Calibrate the
sample volume manually.
• Make sure that the intake tube is not pinched.
Figure 7 Plumbing—Standard liquid detector
14 English
8.
Figure 9.
Specifications on page 3 for the minimum