ABN2ZA
User Manual
Page 17
Peak Scientific – Rev 9A – 16/09/15
Connecting to the Mass Spectrometer
Once the initial purge run of 30 minutes has completed, attach the three 1/4”
compression fittings supplied in the fitting kit to the Curtain, Source and
Exhaust outlets on the output panel (see Figure 6). Using the Teflon tubing
supplied connect each outlet of the Generator to the corresponding inlet on
the Mass Spectrometer.
If you require more tubing than is supplied please refer to the
Tubing Lengths
section.
It should be noted that the gas pressures and flows are
factory set. The pressures shown on the Generator front
panel are in excess of the maximum inlet pressure of the Mass
Spectrometer. This is to allow for known pressure drops.
These settings have been approved by AB Sciex.
Once the tubing is connected to the Mass Spectrometer,
please ensure that they are thoroughly checked for being
leak-tight. Even the slightest leak in the gas supply between
the Generator and the Mass Spectrometer can lead to a
reduction in efficiency, or possible alarm of the Generator.
Tubing lengths
The diameter of the tubing which will be connected to the
gas outlets are important and is determined by the length of
tubing required. Failure to follow these recommendations
could lead to accelerated compressor wear.
< 10 meters:
Use 6/4 (6mm O/D, 4mm I/D) P.T.F.E. tubing.
> 10 - 40 meters:
Use 10/8 (10mm O/D, 8mm I/D). Tubing and fittings not
supplied in the fittings kit.
> 40 metres:
Please contact Peak with the relevant distance and we
will calculate the flow resistance and the tubing size
required.
A combination of 6/4 and 10/8 tubing may be used to ensure that there is no
large diameter tubing within the lab (i.e. for the first 20 meters from the
Generator use 10/8 and the final 10 meters to the Mass Spectrometer use 6/4
tubing). Keep the connections and bends to a minimum.
The imperial equivalents are: 6/4 = 1/4” O/D, 3/16” I/D.
10/8 = 3/8” O/D, 5/16” I/D.