3B SCIENTIFIC
®
PHYSICS
1
AC/DC Power Supply, 0 – 12 V, 3 A, stab. (115 V, 50/60 Hz)
AC/DC Power Supply, 0 – 12 V, 3 A, stab. (230 V, 50/60 Hz)
1001006 (115 V, 50/60 Hz)
1001007 (230 V, 50/60 Hz)
Instruction sheet
04/12 SP/ALF
1 Mains
switch
2 Fuse holder
3 Voltage
control
4 AC/DC voltage selector switch
5 AC output sockets
6 DC output sockets
1. Safety instructions
The AC/DC power supply conforms to the safety
regulations for electrical measuring, control,
monitoring and laboratory equipment, as speci-
fied under DIN EN 61010, section 1, and is de-
signed to be classified as protection class I
equipment. It is intended for operation in a dry
environment as this is suitable for the operation
of electrical equipment and systems.
Safe operation of the equipment is guaranteed,
provided it is used correctly. However, there is
no guarantee of safety if the equipment is used
in an improper or careless manner.
If it is deemed that the equipment can no longer
be operated without risk (e.g. visible damage
has occurred), the equipment should be
switched off immediately and secured against
any unintended use.
In schools and other educational institutions, the
operation of the AC/DC power supply unit must
be supervised by qualified personnel.
Caution: the low-voltage output of the
power supply is not surge-proof if exposed to
external voltages of more than 100 V with re-
spect to earth.
•
When using the equipment in conjunction
with other power supplies, e.g. for operating
electron tubes, be careful that no voltages in
excess of 100 V with respect to earth are
present at the outputs.
•
Before putting the DC power supply unit into
operation, confirm that the specifications
printed on the rear side of the housing are
compatible with the local mains voltage.
•
Before putting the DC power supply unit into
operation, check the housing for any dam-
age. In the event of any malfunc-
tion/operational defect or visible damage,
switch off the unit immediately and secure it
from unintentional use.
