Betzold 89211 Mode D'emploi page 38

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9. Continuity tester
With this continuity tester you can find out which objects in everyday
life can conduct electricity and which can't. To do this, you only need
to place the object to be tested between the two points A and B. If the
lamp lights up, the object is conductive, such as, for example, a knife
or an aluminium pan, etc. If the the lamp does not light up, the
objective is not conductive, for example, plastic or wood.
10. Magnet-controlled lamp and LED light up alternately
When the slide switch (15) is closed, only the LED (17) lights up.
When a magnet is brought close to the reed switch (13), the LED (17)
goes out and the lamp (18) lights up.
11. Magnet-controlled fan and LED work alternately
Replace the lamp (18) with the motor (24) and operate the
reed switch (13) with the magnet. The LED (17) and fan work
alternately.
12. Hand-controlled lamp and LED light up alternately
Replace the reed switch (13) with the pressure switch (14) and close
the slide switch (15). Only the LED (17) lights up. When you operate
the pressure switch (14) with your hand, the LED (17) goes out and
the lamp (18) lights up.
13. Hand-controlled fan and LED work alternately
Replace the lamp (18) with the motor (24) and replace the
reed switch (13) with the pressure switch (14). Operate the
pressure switch (14) and the LED (17) and the fan work alternately.
14. Magnet-controlled variable light intensity of a lamp
When the slide switch (15) is closed, the lamp (18) lights up and the
fan should start. For this it must normally be started up by hand due
to the current being reduced by the lamp (18). If the reed switch (13)
is now operated with the magnet, the light intensity increases and the
fan runs out.
15. Hand-controlled, variable light intensity of a lamp
Replace the reed switch (13) with the pressure switch (14), operate
this by hand and the brightness of the lamp (18) becomes variable.
16. Magnet-controlled variable speed of a fan
When the slide switch (15) is closed, the lamp (18) lights up and the
fan should start. For this it must normally be started up by hand due
to the current being reduced by the lamp (18). If the reed switch (13)
is now operated with the magnet, the speed of the fan increases and
the lamp (18) goes out.
17. Hand-controlled, variable speed of a fan
Replace the reed switch (13) with the pressure switch (14). Operate it
by hand and the rotational speed of the motor (24) increases.
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