Device description and operating principle
SPECORD
®
Design of subassemblies
Photometer section
This subassembly serves to split the light exiting the
monochromator into sample and reference beam. The optical
system shapes the beam cross-section in the sample
compartment. The photometer section, too, is protected by
cover .
Sample compartment
The sample compartment contains two pairs of carrier rods for
the accommodation of various accessory units. To the support
plate, two holders for the accommodation of cells
(9)
and the
detector board are mounted.
Detector board
Two photodiodes are used as radiation detectors, which are
Peltier temperature-controlled on SPECORD
®
200/210/250.
Power supply
module
The power supply modules supply the electrical voltage to the
electronic system and the fans for the thermoelectric
temperature control of the detectors on SPECORD
®
200/210.
Device control
computer
The device control computer coordinates the interaction of the
subassemblies involved in the measurement processes.
4.2
Design of subassemblies
4.2.1 Light
sources
SPECORD
®
200 / 205 / 210
1
Halogen lamp in protective
housing
2 D
2
E lamp compartment
3 Reflecting
mirror
4
Toric illuminating mirror
5
Setscrew for mirror
adjustment
Fig. 4-2
Lamp compartment of SPECORD
®
200/205/210
Page 14
SPECORD
®
200/205/210/250 User's Manual – Edition 04/2005
Analytik Jena AG
