SPECS PHOIBOS 100, User Manual

Page: 61 / 99

Possible Problems
procedure no.
→
incorrect detector preamplifier
threshold
section
→
9.1.1 and section 3.5.3
high noise of the primary source use a second excitation source,
electric interference monitor mains voltage, check ground connec-
tions section
→
4.7
Table 12: Noisy Spectrum
possible cause perform check, test, or troubleshooting
procedure no.
→
malfunction of lenses Check tubus voltages section , ‘Check all ana-
lyzer (HSA 3500) voltages” on page . The
voltage can be measured either at the 12 pin
feedthrough ( figure
→
33 on page 72) or at
the rear of the HSA3500.
Note table 2 on page 16
improper adjustment of the
Slit Orbit mechanism
check proper adjustment section
→
3.4 ,
section 4.4
magnetic fields
→
section 3.3 and section 4.4
Table 13: Incorrect area was analyzed in all lens modes
PHOIBOS 55