Thermo Scientific iCAP 6000 Series Maintenance Manual page 14

iCAP Customer Training Manual
Pass the drain capillary tubing through the lower holder in the cover and towards the pump.
This holder contains a sensor detecting bubbles produced when the spray chamber is
draining normally.
The plasma and the pump will be switched off after 2 minutes if no bubbles are
detected.
Figure 15 – Pump Tubing
Release the pump tubing clamps and locate the sample and drain pump tubing over the
pump rollers, locking the lugs on the pump tubing into the left and right clamps.
Connect the sample pump tubing to the sample capillary tubing and the drain pump tubing to
the drain capillary tubing; remember to allow for the direction of flow.
Pump tubing should be inspected before each analysis and should be replaced if there are
indications of wear.
Additional lengths of capillary tubing should be used to allow connection to the input of the
sample pump tubing to the sample and the output of the drain pump tubing to a waste
container.
Figure 16 – Pump Tension Adjustment
The pump tension can be adjusted with the plasma running and the pump stopped. Lock the
sample pump tubing and clamp into position. Release the tension adjustment and allow the
nebuliser to free aspirate. Tighten the tension adjustment until the flow just stops then tighten
by one turn. Turn on the pump and, if necessary, tighten the tension until a smooth flow is
produced. Do not over-tighten the pump clamps as it will result in excessive wear and tear of
the pump tubing and require replacement tubing at more frequent intervals.