Installation and commissioning
PlasmaQuant MS product family
50
4.3.5
Installation of the peristaltic pump tubing
CAUTION
Risk of injury!
Always switch off the peristaltic pump before installing or removing the pump tubing.
Take care to keep loose clothing, jewelry, etc. clear of the pump while it is running.
1.
Select pump tubing for the sample, drain, and Internal Standard (if required).
2.
Assemble the sample pump tubing as follows:
Connect the sample and drain tubing supplied with the instrument.
The pump tubing is color-coded according to its size (internal diameter). The
sample tubing used is typically ‘black-black’ (0.76 mm ID). The drain tubing is
normally ‘blue-blue’ (1.65 mm ID).
Attach one end of the capillary tubing to the sample pump tubing. Insert the other
end directly into the sample or to the autosampler probe.
Insert the nebulizer capillary tubing into the free end of the sample pump tubing as
shown in the figure below.
1 Nebulizer tubing with tubing
connector
2 Pump tubing for sample with
color coding ‘black-black‘
3 Capillary tubing - to be placed
in the sample or the
autosampler probe tubing
Fig. 21 Sample tubing
3.
Assemble the drain tubing as follows:
Fit the smaller end of a 1.6 to 3.2 mm (1/16" to 1/8") barb to one end of the drain
pump tubing.
Cut a piece of Nalgene tubing long enough to extend between the peristaltic pump
and the drain vessel and fit one end over the larger end of the barb.
Connect the drain tubing extending from the spray chamber to the other end of the
drain pump tubing.
Always ensure that the drain pump tubing pumps liquid away at a faster rate than
the sample/internal standard pump tubing can supply it. The drain pump tubing
should be at least two sizes “larger” than the supply pump tubing to ensure
sufficient drainage.
4.
Stretch the tubing around the pump rollers.
Use the plastic stoppers on the tubing to hold the tubing in the grooves below the
pump rotor.
5.
Close the pressure bars.