Maintenance & Troubleshooting 5.0 - Teledyne 514 Instruction Manual

5.0 Maintenance & Troubleshooting
Under normal operating conditions, little or no maintenance is required.
When, after prolonged use, the sample cell builds up an accumulation of dirt
or particulate deposits that take the instrument out of range of the ZERO
controls, then the sample cell must be removed (see Figure 5-2) and the
optics cleaned.
The filters should also be checked to see if any deposits have accumu-
lated on their surfaces, requiring cleaning. Also, carefully inspect the filters
for any signs of deterioration. If necessary, remove and replace filter(s) (see
Figure 5-1). If optics/filters require cleaning, proceed as follows:
1. Windows are synthetic sapphire and lenses are quartz. They can
be cleaned, if necessary, with mild detergent and water, or with a
solvent such as ethanol.
2. The filters are sensitive to moisture and can be damaged by
water. They are held in place with epoxy cement which may be
attacked by solvents. Therefore, if filters must be cleaned beyond
the removal of dust with a brush, they may be cleaned by
application of ethanol with a cotton-tipped swab, being careful
not to wet the epoxy cement.
CAUTION: Extreme care must be observed when cleaning the optics of the
analyzer, particularly the reference and measuring filter elements,
which are critical, coated interference-type filters. Do not use
abrasive cleaners of any type. Dust or dirt can be removed with a
camel's hair brush.
Periodic lamp replacement may be necessary. This is performed by
disconnecting the old lamp, removing it, and reconnecting the leads of a
replacement lamp.
With the exception of the items noted above, the analyzer system is
virtually maintenance-free and should perform satisfactorily almost indefi-
nitely.
Teledyne Analytical Instruments
A Business Unit of Teledyne Electronic Technologies
Maintenance & Troubleshooting 5.0
5–1