9032X
15
2.4.3
AUTOMATIC KCL REFILL SYSTEM (OPTIONAL)
Figure 7.
Layout of the Automatic KCl Refill System.
Directions for installing and using the KCl refill system:
1.
Feed inner (smaller diameter) tubing through outer (larger diameter) tubing.
2.
Feed inner tubing through the side-arm of the reference electrode and connect
the outer tubing over the side-arm.
3.
Clip nozzle of KCl bottle, making sure the hole is large enough for inner tubing to
pass through and that KCl solution can flow freely around it.
4.
Insert inner tubing through nozzle of bottle and connect outer tubing over the
nozzle of bottle. Make sure the inner tubing reaches the top of the bottle while
the other end remains inside the reference electrode.
5.
Install KCl bottle into the bottle clamp and finger-tighten wing nut to hold the
bottle in place.
6.
Poke a small hole in the top of the bottle so KCl flows freely and vacuum does
not form.
7.
Rinse off any spilled KCl with DI water before installing probe in the flowcell.
(KCl will interfere with sample reading if it gets in the flowcell.)
KCL Solution
Reservoir Bottle
KCL Transfer
Tubing (outer)
Refillable
Reference
Electrode with
Side-arm
Connection for
Tubing
Bottle Clamp
End of internal air
tubing
Internal air tubing
(inner)
