Agilent Technologies 55B AA User Manual

Troubleshooting/Errors
Agilent 55B AA Spectrometer User’s Guide 137
Common problems
The following troubleshooting chart provides solutions to some common
problems you may encounter during routine AA analysis.
Please note that this list is not exhaustive.
Table 10. Common faults
Fault
Check
1 Oxidant pressure low
a) Check gas supply pressure.
2 Burner fault
a) Check the burner type is correct for the selected
flame type and it is correctly installed.
3 Liquid trap fault
a) Check liquid trap is full and float is free to move.
b) Check the operation of the liquid trap interlock in the
burner adjuster.
4 Spray chamber bung
fault
a) Check pressure relief bung is correctly installed in the
spray chamber.
b) Check operation of pressure relief bung interlock.
5 Lack of control of
gas flows
a) Check as for 1a).
b) Check for blockages in gas supply lines.
6 High oxidant flow
a) Check O-rings in nebulizer block.
b) Check nebulizer is correctly assembled and adjusted.
c) Check for leaks.
7 Flame sensed with
no flame
a) Too much light in the sample compartment. Ensure
chimney and flame shields are fitted. Turn off nearby
lights.
b) Flame sensor faulty.
8 Igniter flame too
short
a) Low acetylene pressure, check supply.
b) Check that igniter solenoid operates correctly.
c) Check for blockage or carbon in igniter capillary.

Agilent Technologies 55B AA Specifications

General

Brand	Agilent Technologies
Model	55B AA
Category	Measuring Instruments
Language	English