Hach CL17sc User Manual page 9

3.3 Step 2: Mount and plumb the analyzer
Only the tubing specified by Hach Company may be used with the instrument. Other tubing may
absorb chlorine that is in the sample water and have a negative effect on chlorine readings (decrease
the chlorine readings).
1. Attach the analyzer (item 9) to a wall with four screws. Make sure that the analyzer is level.
Note: The user supplies the mounting hardware.
2. Attach the SC Controller (item 7) to a wall, panel or pipe. Refer to the SC Controller
documentation for instructions.
3. Assemble the Y-strainer. Refer to the instructions on the packing list.
4. Use the 1-inch conduit clamp to mount the Y-strainer assembly (item 5 in
5. Do step 6 or 7.
The analyzer is supplied with a standpipe installation kit (refer to
installation kit (refer to
the installation kit at the time of purchase.
6. If a standpipe installation kit was selected at the time of purchase, install the standpipe as follows:
a. Assemble the standpipe. Refer to the instructions on the packing list.
b. Use the smaller conduit clamp to mount the standpipe assembly a minimum of 61 cm (24 in.)
above the top of the analyzer. Refer to item 10 in
c. With the black tubing, install the sample bypass tubing (item 8). Push the tubing behind and
then into the standpipe. Put the tubing 10–13 cm (4–5 in.) in the top of the standpipe.
d. With the clear tubing, plumb the bottom of the standpipe to an open drain (item 11). Refer to
Drain line guidelines
7. If a pressure regulator installation kit was selected at the time of purchase, install the pressure
regulator (item 10 in
8. With the black tubing, connect the Y-strainer inlet (item 5) to the sample source.
Refer to Sample line guidelines
9. With the black tubing, connect the Y-strainer outlet (or the outlet of the pressure regulator) to the
sample inlet fitting (item 1) on the bottom of the analyzer. Make the tubing as short as possible
and a maximum of 2.5 m (8 ft).
10. If a pressure regulator was installed, install the sample bypass tubing (item 8 in
11. Assemble and plumb the grab sample assembly (item 4) as follows:
a. Assemble the grab sample assembly.
b. Plumb the tee fitting between the Y-strainer and the analyzer. Refer to
12. With the clear tubing, connect the sample drain (item 2) and case drain (item 3) to an open drain.
Refer to Drain line guidelines
C A U T I O N
Figure 4) to control the water pressure to the analyzer. The user selects
on page 12.
Figure 4).
on page 12 and
on page 12.
Figure
Figure 3.
Sample requirements
Figure 3 or Figure
3) or a pressure regulator
on page 12.
Figure 4).
Figure 3 or Figure
English 9
4).
4.