Function and setup
qTOWER
3
84 / qTOWER
3
84 G
Edition 02.19
21
5
Function and setup
The qTOWER³ 84 combines a PCR thermocycler with a patented fluorescence photom-
eter.
1
upper part with
fluorescence pho-
tometer
2
heated lid
3
Sample block
4
thermal cycler
Fig. 1
Layout of the qTOWER³ 84
5.1
Fluorescence spectrometer
A 16-channel Epi fluorescence photometer with fiber -multiplexer and mechanical scan-
ning device is used as detector.
Light for exciting the dyes is emitted by four-color LED in blue, green, white and red.
The light is passed through optic fibers to collimator lenses, bundled and then trans-
ferred to the excitation filter of the color modules fitted to a rotating filter wheel. The light
is deflected via a beam divider and passed through additional optic fibers to a lens array
in a shuttle system scanning the sample block in columns. The light excites the fluores-
cence dyes in the reaction mix.