Plumbing Connections - Hach Lange CL17 User Manual

Installation
1 Overflow drain, recommended .50 I.D. tubing
2 .50 I.D. drain tube sample
3.4

Plumbing connections

12
Figure 4 CL17 instrument dimensions (3 of 3)
Note: The sample drain contains analysis wastes, which include both sample and chemical
reagents. The enclosure drain produces no waste under normal use. However, in the event of spills
or leaks, some waste may be produced. Although the chemicals used are of low concentration, it is
best to check with local authorities concerning proper disposal of waste from this product.
Sample inlet and drain connections are made on the bottom of the instrument using a
quick connect fitting for ¼-inch OD tubing. Refer to
poly tubing by pushing it into the fitting. Two distinct "stops" will be felt as the tubing is
correctly attached. If the tubing is not properly seated, it will come loose when water
pressure is applied. The sample drain fitting is sized for ½-inch ID flexible tubing (not
supplied).
CAUTION
Fire hazard. This analyzer is intended to be used for water samples only.
Note: The ½-inch enclosure drain must have at least 3 feet of tubing installed to ensure the analyzer
remains dust-tight. Never plug the drain. The drain must remain open to remove sample water in the
event of a leak.
3 Sample inlet quick connect .25 O.D. Polyethylene tubing
(4743800)
Figure 5. Connect the ¼-inch O.D.