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Idiomas disponibles
Idiomas disponibles
•
Proper use in compliance with directives: The
motor must be mounted on a stable surface (stable
bench, solid stand equipment or if necessary a
bench clamp). Use as a hand-held drill or power
screwdriver is inadmissible due to the grip lacking
the appropriate ergonomic form (machine guide-
lines 98/37/EC). For the sake of operator safety, a
protective wall is erected to effectively shield ob-
servers from any flying objects which might be
unleashed when operating the machine at high
speeds. This wall is made of safety glass (e.g. plexi-
glass, polycarbonate, etc.).
•
Directly attaching light (approx. 0.5 kg maximum)
centrifugal devices into the chuck is allowed, e.g.
flattening ring or flywheel regulator if these compo-
nents are not out-of-balance. Otherwise the driving
must be achieved using the belt pulley provided. At
any rate the corresponding operating instructions
included must be complied with.
•
The motor can also be operated as a generator. To
do this, the device is mounted onto a bench using a
bench clamp, for example, and the crank handle is
inserted into the chuck. In this operating mode it is
prohibited to have a power supply connected to the
terminal sockets (7). Instead, an incandescent lamp
or a measuring instrument should be connected.
•
The mains power supply (or similar) used to power
the motor must be set up outside the danger zone
(for example behind a protective wall). The use of a
variable power supply is recommended so that the
experiments can always be started at a lower speed
setting and then increased. The maximum permissi-
ble voltage (refer to rating plate) may not be ex-
ceeded.
•
In the case where the motor comes to an unex-
pected standstill (e.g. power cut), immediately dis-
connect all supply lines from the mains power sup-
ply unit (or the power source being used), in order
to avoid any unintended restart.
•
The motor is equipped with a torque limiting me-
chanism (4). Experiments should always be started
at the lowest possible setting (setting "1" on the
scale, which is designated with an arrow and the let-
ter "M"). If the torque is not sufficient the power
supply must be switched off and the next highest
setting selected.
•
Before starting the experiment please check once
again for possible assembly or connection errors
(loose screws or chuck, etc.) or visibly defective
components.
•
During operation the experiment setup is to be
constantly observed and immediately switched off
should the slightest irregularity arise (change in noi-
se volume, increasing vibration).
2. Technical data
Nominal voltage U
:
0
No-load current:
Rotation direction:
No-load speed n
at U
0
Chuck:
Continuous noise level
at 1 m distance:
In DC motors there is practically a linear relationship
between the supply voltage and speed. For that reason
the speed for any given voltage can easily be deduced
from the data on the rating plate:
With the experiment motor you can perform experi-
ments on centrifugal force (additional equipment re-
quired) and power generation (generator mode).
•
Using the stand rod the motor can be secured in
place either in a bench clamp, a tripod or a cou-
pling sleeve. Alternatively, it is also possible to
mount the motor on plates using a drill hole (D = 8
mm) as, for example, with the mount (1002655 /
U10361). Furthermore it can be secured on a lab
bench using a bench clamp. In this case the upper
side should rest on the table top.
•
To lock the shaft into the chuck the locking ring (3)
is held securely while the ring on the chuck (2) is
turned. It is particularly importantly especially with
small diameters to make sure that the shaft is seat-
ed firmly in all three jaws of the chuck and is not
bent or angled.
•
The torque setting is set with the ring (4), by turning
from one setting to the next. Intermediate settings
are not allowed.
•
The motor is designed for operation in short ex-
periments and not for continuous operation. In par-
ticular when operating at higher currents starting
around 2 A it is important to check the housing tem-
perature at intervals of every 5 - 10 min. If the tem-
perature of the housing becomes "uncomfortably"
hot – i.e. higher than normal body temperature,
than a break should be taken.
2
12 - 18 V DC (see rating plate)
approx. 1 - 2 A, maximum
permissible
current:
(maximum 5 min.)
clockwise from the motor's
perspective when connection
of "+" terminal is to red and
"–" is to the blue socket
:
see rating plate
0
1 - 10 mm
70 dB(A).
n = n
U / U
.
0
0
3. Operation
5
A
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