PerkinElmer aanalyst 200 User Manual page 312

Troubleshooting
Possible Cause of Problem
Cannot get close
The nebulizer may be clogged.
to suggested
characteristic
concentration
(continued)
Lamp current may be
improperly set (too high).
Too much liquid may be
building up in the burner
chamber.
The burner head may be skewed
in the light path.
The burner position may be
incorrect.
The instrument may have been
autozeroed while a sample was
being aspirated.
Characteristic concentration
Cannot get
suggested may not be within 20% of the
detection limits standard conditions value.
Integration time may be
insufficient.
10-6
Check and/or Remedy
Clean the nebulizer using the procedure
given in this User's Guide.
Reset lamp current.
Check for proper drainage.
Position the burner head so that it is
parallel to the light beam.
Adjust the horizontal, vertical, and
rotational position using the information
in this User's Guide.
Autozero the instrument while aspirating
a blank.
Check to make sure the characteristic
concentration is within 20% of the
specified value. If it is not, refer to the
information on characteristic
concentration above before performing
the following checks.
Try longer integration time.