Teledyne UA-6, Installation And Operation Manual

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UA-6 Detector
Section 2 Preparation for Use
2-4
2.5 Changing
Wavelengths with the
Type 11 Optical Unit
The Type 11 optical unit is designed for wavelength detection
from 254 to 660 nm with interchangeable filters and corre-
sponding source screens (see Table 2-1). The two wavelength
filters selected must be of the same wavelength and must match
the source screen used. When the UA-6 and Type 11 are shipped,
filter and source screen for 254 nm are in place.
Figure 2-3 Changing Wavelengths in the Type 11 Optical Unit
To change wavelength operation:
1. Release the two white catches on the front of the unit and
open the Type 11 and remove the wavelength filters from
each side of the optical unit as shown in Figure 2-3. (The
BASELINE ADJUST control on the optical unit will have
to be used to clear the access to the filter.) Remove the fil-
Table 2-1 Selectable Wavelengths for Type 11 Optical Unit
Wavelength (nm) Bandwidth (nm) Filters Source Screen (Light Source)
254
280
310
340
365
405
435
470
510
546
580
620
660
Spectral line ca 0.1
15
25
20
20
12
Spectral line ca 0.1
20
10
Spectral line ca 0.1
10
11
12
254
280
310/340
310/340
365
405
435
470
510
546
580
620
660
254
280/310
280/310
340/365
340/365
405
435
470
510
546
580
620
660