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3. Technical data
Signals:
Frequency range:
Distortion factor:
Signal waveform:
Output:
Output amplitude:
Output power:
Output current:
General data:
Power supply:
Dimensions:
Weight:
4. Operation
•
Connect the plug-in power supply to the mains
and plug it into the function generator.
The equipment is then switched on and ready to
use.
•
Adjust the amplitude with the amplitude knob.
As of an amplitude of 2 V, the two LEDs will indi-
cate the positive or negative half-waves of the out-
put voltage signal.
•
Adjust the frequency with the frequency knob.
The set frequency will be indicated by the two LEDs
as long as the amplitude exceeds 2 V. The fre-
quency can be adjusted to between 10 mHz to
10 Hz along a linear curve.
The signal can be read using a multimeter with the
zero point in the middle (the ESCOLA 2 multimeter
1006811 is recommended) or with an oscilloscope.
5. Example experiment
Demonstration of rotation reversal for a DC
motors depending on the polarity
The following additional equipment is needed in
order to carry out this experiments:
1 DC motor
1 Stand base
Experiment leads
•
Set up the motor with the help of the stand base.
(see Fig. 1)
•
Connect up the motor and function generator
with experiment leads.
3B Scientific GmbH ▪ Rudorffweg 8 ▪ 21031 Hamburg ▪ Germany ▪
0.01 Hz to 10 Hz
<5%
Sine
1 Vpp to 10 Vpp, con-
tinuously adjustable
1.5 W permanent
300 mA max.
Plug-in power supply,
12 V AC, 0.5 A
100x75x35 mm approx.
400 g approx. (including
power supply)
1001041
1001046
Subject to technical amendments
© Copyright 2014 3B Scientific GmbH
Set both amplitude and frequency to their mini-
•
mum levels.
•
Connect the plug-in power supply to the mains
and plug it into the function generator.
•
Gently increase the frequency and amplitude
until the metal arm on the motor starts to oscil-
late back and forth.
Fig. 1
Experiment set-up for demonstration of rotation
reversal for a DC motor
6. Storage, cleaning, disposal
•
Keep the equipment in a clean, dry and dust
free place.
•
Before cleaning the equipment, disconnect it
from its power supply.
•
Do not clean the unit with volatile solvents or
abrasive cleaners.
•
Use a soft, damp cloth to clean it.
•
The packaging should be disposed of at local
recycling points.
•
Should you need to dis-
pose of the equipment it-
self, never throw it away
in
normal
domestic
waste. Local regulations
for the disposal of electri-
cal equipment will apply.
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