Emerson Rosemount TCL - Page 56

Figure 12-3: Tubing Layout for Units with Counter-clockwise Flow Reagent and Sample
Pumps
A. Sample pump
B. Reagent pump
C. Reagent injection tee (small barb)
D. Air injection tee (large barb)
E. Air
F. Drain
12.3.3 Replacing reagent tubing
Depending on the TCL configuration and manufacturing date, the reagent pump may have
either clockwise or counter-clockwise flow direction. It is important to use the right reagent
tubing kit for your reagent pump flow direction. Refer to the product datasheet for reagent
tubing kit ordering information.
Procedure
1. Turn off sample and reagent pumps.
2. Luer fittings connect the reagent tubing to the pump. Disconnect the tubing by
turning the fitting in the direction of the arrows shown in Figure 12-4.
3. 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 the discharge
tubing from the reagent injection tee.
4. Install the replacement tubing.
Note that the discharge tubing is longer than the suction tubing.
Maintenance Reference Manual
January2023 00809-0200-3415
56 Emerson.com/Rosemount