DV-8000 USER’S MANUAL
3
Working Principle:
The spectrophotometer consists of five parts: 1) Halogen or deuterium lamps to supply the
light; 2) A Mono-chromator to isolate the wavelength of interest and eliminate the
unwanted second order radiation; 3) A sample compartment to accommodate the sample
solution; 4) A detector to receive the transmitted light and convert it to an electrical signal;
and 5) A digital display to indicate absorbance or transmittance.
The block diagram
below illustrates the relationship between these parts.
Block diagram for the Spectrophotometer
Light
Mono-
Sample
Detector
Display
Source
chromator
Compartment
In your spectrophotometer, light from the lamp is focused on the entrance slit of the
mono-chromator where the collimating mirror directs the beam onto the grating. The
grating disperses the light beam to produce the spectrum, a portion of which is focused on
the exit slit of the mono-chromator by a collimating mirror.
From here the beam is
passed to a sample compartment through one of the filters, which helps to eliminate
unwanted second order radiation from the diffraction grating. Upon leaving the sample
compartment, the beam is passed to the silicon photodiode detector and causes the
detector to produce an electrical signal that is displayed on the digital display.
Unpacking Instructions:
Carefully unpack the contents and check the materials against the following packing list to
ensure that you have received everything in good condition.
Packing List
Description
Quantity
Spectrophotometer
......................................................................
…. 1
Power Cord
...................................................................................
…. 1
10mm Glass Cuvette
.........................................................................
1 Set of 4
Manual
...........................................................................................
…. 1
Black Block…………………………………………………………. 1
NOTE
：
If there is any change in this package, an Accessory & Spare Parts List
attached should be referred to as final
.
100%T
0 Abs
