Waste And Sample Line Installation - Hach QC8500 Series 2 User Manual

1 To waste

3.1.5 Waste and sample line installation

3.1.5.1 Sample line
1 Scalpel
1 From probe
Figure 6 Flow cell connectors
A sample line consists of a union connector, 130 or 190 cm of Teflon
(0.032 in.) ID, two pump tube adapters, a green-green pump tube with its ends trimmed
to 2 cm past both green tabs and 30 cm of Teflon tubing 0.8 mm (0.032 in.) ID.
To install the sample line:
1. Trim the ends of a green-green pump tube to 2 cm past both green tabs
This procedure only applies to the green-green pump tube used in a sample line. All
other pump tubes do not need to be trimmed.
Note: Refer to the QuikChem method to find the pump tube color to be used as a sample line.
Most manifolds will use a green-green pump tube, but there are some exceptions.
1
20 mm
[0.79 in]
Figure 7 Trimming the green-green pump tube
2 Green-green pump tube
2. Attach the sample line pump tube on a pump tube cartridge
down the cartridge on the pump. Refer to
Figure 8 Sample line pump tube and cartridge
3. Connect the 30 cm Teflon tubing to port 6 of the injection valve.
4. Connect the 130 or 190 cm Teflon tubing to the probe on the sampler.
2 Inlet (from manifold)
2 3
20 mm
[0.79 in]
3 Green tab (2x)
Section 4 on page 29
2 To injection valve
Installation
®
tubing 0.8 mm
(Figure 7).
(Figure 8). Do not clamp
for further details.
13