MODEL TCL

SECTION 10

 

MAINTENANCE

10.3 SAMPLE CONDITIONING SYSTEM

10.3.1 Reagent

The sample conditioning reagent lasts about 2 months. Before putting fresh reagent in the carboy, discard any small amount of remaining reagent. To prepare the reagent refer to the procedure in Section 5.1. See Table 10-2 for ordering information.

10.3.2 Sample and reagent tubing.

Periodically inspect sample and reagent tubing for cracks and leaks. Replace tubing if it is damaged.

After a period of time, the sample tubing may become plugged with suspended matter. The tubing is flexible and difficult to clean mechanically. Plugged sample tubing is best replaced.

Replacement tubing kits are available. See Table 10-2 for part numbers.

To replace reagent tubing:

1.Reagent tubing is shown in Figure 10-2.

2.Turn off sample and reagent pumps.

3.Luer fittings connect the reagent tubing to the pump. Disconnect the tubing by turning the fitting in the direc- tion of the arrows shown in Figure 10-5.

4.Disconnect the other end of the suction tubing from the barb on the reagent inlet fitting in the bottom of the enclosure. Disconnect the other end of discharge tubing from the reagent injection tee.

5.Install the replacement tubing. Note that the discharge tubing is longer than the suction tubing.

FIGURE 10-3. Replacing Reagent Tubing

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Emerson TCL instruction manual Reagent, Sample and reagent tubing
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TCL specifications

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