Revision 5
111
August 2021
number BA7532). Refer to the spectrum displayed on the
Spectrum
page and the lamp
troubleshooting tips shown in Table 33.
Table 33: Lamp Troubleshooting
Spectrum Appearance
Potential Cause
Horizontal line, no peak observed
•
Lamp supply fuse on ACTS burned
out
•
Lamp supply fuse in switch on
bottom of black UV lamp enclosure
burned out
•
Lamp burned out
Peak present, but peak height <20,000 with
integration time 1000ms
•
Anti-solarant degraded and requires
replacement
•
Dirty / broken cell windows
•
Damaged optical fibres
•
Lamp degraded to beyond useful life
Once the lamp has been switched off, it will not restart for a period of time as ignition of a hot
lamp can cause serious problems. If the lamp is turned off or is no longer lit, it may be worthwhile
to wait for 15-20 minutes before restarting it. If the lamp does not start after the cool down period,
and it has been more than six months since the lamp has been replaced, then it should be
replaced. The normal lifespan of a UV Source Lamp
is about six months, but longer life spans
are possible in circumstances where the restart count is low.
If the lamp was replaced <8 months ago (standard lifespan lamp) or <16 months ago (long
lifespan lamp) , it is advisable to investigate the other potential causes listed in Table 33 prior
to replacing the lamp.
The lamp life is inversely proportional to the number of restarts on a particular lamp.
The lamp should ONLY be turned off when absolutely necessary to preserve lamp
lifespan.
An
iris
is installed on the lamp holder between the lamp and the fluid holder. The iris is preset
at the factory with clean optics and a new lamp to obtain 28,000 counts at a <100 ms integration
period. The setting of the iris is only to be changed in extreme situations. Please contact
Galvanic Applied Sciences Inc. prior to making any changes to the iris position.
To change the UV Source Lamp, follow the procedure below.
1. Place the analyzer in Offline mode by toggling the
Online / Offline
control toggle
(Section 4.3.1) on the
Analysis 2
panel to
Offline
(red).
2. Place the analyzer in back purge mode by pressing the PURGE key on the keypad OR
by placing the X in the
Back Purge
check box on the
Analysis 1
panel.
3. Access the purged control cabinet following proper user company and/or regulatory
agency procedure.
The control cabinet door may NOT be opened while the analyzer is
energized UNLESS the area is known to be non-hazardous. Observe all the
warning labels on the analyzer enclosures.
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