3B Scientific Polarimeter with 4 LEDs (115 V, 50__60 Hz) - Manual (Page 5)

3B SCIENTIFIC ® PHYSICS
1
Polarimeter with 4 LEDs U8761161
Instruction Sheet
06/08 THL/ALF
1 Fixed
pointer
2 Analyser
3 Viewing
hole
4 Measurement chamber with
cylindrical sample cell and
polariser
5 LED selector switch
6 Mains
adapter
1. Safety instructions
• Do not look into the fully opened measurement
chamber at the LEDs when they are brightly lit.
• Only use the instrument with the 12V DC mains
adapter supplied.
• If there is any visible damage to the polarimeter
or the mains adapter, the instrument must not
be used.
2. Description
The polarimeter with 4 LEDs is used for determining
the angle and direction of rotation of polarised light
transmitted by an optically active substance, and
measuring its dependence on the wavelength,
sample thickness and sample concentration.
The instrument is illuminated by a system consisting
of four monochromatic light-emitting diodes (LEDs).
The light emitted from the active LED undergoes
linear polarisation by a polariser placed below the
entry window of the cylindrical sample cell in the
measurement chamber.