General Catalogue Chemistry - BECO Internacional LTDA.

664 431
Solar cells
Generates electrical current from the sun's
energy. The two solar cells are mounted on a
rotating shaft, making it possible to adjust them
for varying angles of incidence to the sun's
light. The two cell arrays may be connected in
parallel (for higher current) or in series (for higher
voltage). The voltage is available at the
sockets on the base plate.
Angle of inclination: 0 ... 90°
Dimensions: 25 cm x 16 cm x 25 cm
Weight: 1.6 kg
Light intensity [k|x] U max [V] I max [mA]
10 5.1 70
20 5.4 150
30 5.4 300
50 5.7 400
664 430
Windmill
Generates electrical current when turned by
wind energy. The air flow can be generated by
a blower. The voltage thus generated is available
at two sockets on the base of the stand.
The windmill can also be operated as a motor
(in conjunction with the solar cell > 664 431,
for example). Wind generation by a blower
(> 666 735, for example); distance between
blower and windmill: 250 mm.
Windmill operation
U max : 3 V
I max : 70 mA
Motor operation
U max : 12 V
Dimensions: 28 cm x 1 cm x 12.5 cm
Weight: 630 g
664 432
Electrolysis cell
electrochemistry
For producing hydrogen (and oxygen) by applying
electric current. The electrolysis cell is of a
very compact design and is attached to the
stand with spring clamps. The platinum electrodes
are mounted in the glass section by
means of threaded connectors to reduce the
risk of breakage. The electrolysis cells may also
be used as a water electrolysis unit after
Hofmann. The required electrical energy can be
supplied either from a power supply unit
(> 667 826, for example), the solar cell
(> 664 431) or the windmill (> 664 430 ).
Operating voltage: >2 V
Uop: 3 V I = 70 mA approx.
Uop: 4 V I = 170 mA approx.
Uop: 5 V I = 340 mA approx.
Dimensions: 450 x 160 x 250 mm
Weight: 2.3 kg
LEYBOLD DIDACTIC · GENERAL CATALOGUE CHEMISTRY
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