Metrohm 748 DH Sample Changer - Manual (Page 9)

2.2 Sample Changer setup
748 DH Sample Changer
7
2.2.2 Installation of rinsing accessories
1. Screw 6.1808.050 tubing nozzle for the rinsing tubing
onto the rear panel of the Sample Changer (fold-out
page, Position 16).
2. Attach the rinsing tubing (thin 6.1801.120 PVC tubing)
to the tubing nozzle. Use tubing clamps to attach
tubing firmly.
3. Pull the nut of the small opening of the canister over
the rinsing tubing.
4. Push the other end of the rinsing tubing onto
6.1828.000 connection nipple and screw it tight.
5. Push 6.1812.010 PTFE tubing onto the other end of
the connection nipple (heat up tubing end, hold tub-
ing firmly with abrasive paper) and screw it tight.
6. Screw rinsing tubing onto the rinsing canister and fill
the rinsing canister with rinsing solution (water).
7. Push 6.1801.130 PVC tubing onto the right-hand side
of the Sample Changer (fold-out page, Position 7).
8. Attach other end of tubing to 6.1828.010 tubing noz-
zle.
9. Screw tubing nozzle onto the waste canister.
Important
• The waste tubing must not sag.
• Do not seal the canister hermetically (pressure com-
pensation, backwater in the wash beaker!).
• Regularly check the filling levels of the rinsing and
waste canisters!
• The rinsing device is only suitable for use with aque-
ous solutions.
If you have to rinse with organic solvents then you can
clean the inserts by "immersion in a rinsing beaker".