Agilent Technologies 55B AA User Manual

Troubleshooting/Errors
Agilent 55B AA Spectrometer User’s Guide 149
 D
2
lamp misaligned.
 The wavelength selected is inappropriate for D
2
background correction.
 The light path has been obstructed in the sample compartment.
 Faulty D
2
lamp.
9525 High BC lamp energy
High Background Corrector (D
2
) lamp energy.
Possible causes include:
 D
2
lamp misaligned.
 The hollow cathode lamp energy is too low.
 Faulty D
2
lamp.
 Faulty EHT circuit.
9527 Instrument fault: EHT failed
Instrument Fault. The instrument detected a problem with the EHT supply. Restart
the instrument. If the problem persists a service call may be required.
9528 Background lamp failed
Instrument Fault. The instrument detected a problem with the Background
Corrector (D
2
) lamp. No lamp current has been detected and the D
2
lamp has been
presumed faulty. Change the D
2
lamp as described in Chapter 6. If the problem
persists a service call may be required.
9529 Background lamp interlock
Instrument Fault. The instrument detected a problem with the Background
Corrector (D
2
) lamp. The safety interlock switch suggests that the D
2
lamp is not
safely installed in the instrument. The lamp will not light in this position. Remove
and re-install the D
2
lamp bracket as described in Chapter 6. If the problem
persists a service call may be required.
9530 Instrument fault: signal diagnostics
Instrument Fault. The instrument detected a problem with the signal electronics
on the control board. Restart the instrument. If the problem persists a service call
will be required.

Agilent Technologies 55B AA Specifications

General

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