Component hardware troubleshooting 11-7
Scroll pump not operating correctly. Contact Waters for advice.
See also: Contacting Waters on
page 11-14.
Leak in a vacuum backing line. Inspect the vacuum hoses for cracks
or vacuum leaks.
Restriction in the vacuum pump
exhaust tubing.
Inspect the exhaust lines for
restrictions.
Turbomolecular pump not operating
correctly.
Contact Waters for advice.
See also: Contacting Waters on
page 11-14.
Penning gauge is dirty. Clean or replace the gauge.
Contact Waters for advice.
See also: Contacting Waters on
page 11-14.
Pneumatic gas pressure too low and
valves not opening.
Check the pneumatic gas connec-
tion and ensure the pressure setting
is correct.
See also: Table titled “Gas pres-
sures:” on page 3-2.
Leak in the vacuum housing. Ensure the O-rings are correctly
positioned in the groove, that they
are in good condition, and clean and
free from dust.
See also: Changing the EI/CI inner
source assembly on page 2-2.
CI gas is switched on Switch off the CI gas in the Tune
window CI Tune tab CI pane, set the
CI Gas Flow (%) to 0.
See also: Turning off CI gas on
page 3-30.
Insufficient vacuum: (Continued)
Possible cause Corrective action
To Next Page