3B SCIENTIFIC
®
PHYSICS
1
DC Power Supply 0 – 500 V (115 V, 50/60 Hz)
DC Power Supply 0 – 500 V (230 V, 50/60 Hz)
1003307 (115 V, 50/60 Hz)
1003308 (230 V, 50/60 Hz)
Instruction sheet
04/12 ALF
1 Carrying
handle
2 Ventilation
slots
3 Voltage
display
4 Zero adjustment for voltage
display
5 Current limiter display (LED)
6 Voltage
regulator
7 Earthing
socket
8 Voltage output, 500 V
9 Voltage output, 50 V
10 Voltage output, 8 V
11 Voltage output, 12 V
12 Mains on/off switch
13 Power on display (LED)
1. Safety instructions
The 0 – 500 V DC power supply conforms to all safety
regulations for electrical measuring, control, moni-
toring and laboratory equipment, as specified under
DIN EN 61010, Section 1, and the equipment has
been designed to meet protection class I. It is in-
tended for operation in a dry environment, suitable
for the operation of electrical equipment and sys-
tems.
Safe operation of the equipment is guaranteed, pro-
vided it is used correctly. However, there is no guar-
antee of safety if the equipment is used in an im-
proper or careless manner.
If it may be assumed for any reason that non-hazardous
operation will not be possible (e.g. visible damage), the
equipment should be switched off immediately and
secured against any unintended use.
In schools and other educational institutions, the
operation of the power supply unit must be super-
vised by qualified personnel.
Caution: the low-voltage outputs of the power
supply are not surge-proof if exposed to external
voltages of more than 500 V with respect 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
500 V with respect to earth are present at the
outputs.
•
Before using the power supply unit for the first
time, confirm that the specifications printed on
the rear side of the housing are compatible with
the local mains voltage.
•
Before using the power supply unit for the first
time, check the housing and the mains lead for
any damage. In the event of any malfunc-
tion/operational defect or visible damage, switch
off the unit immediately and secure it against
unintended use.
•
The instrument may only be connected to the
mains via a socket that has an earth connection.
•
Before making any connections, check the ex-
periment leads for damaged insulation and ex-
posed wires.
•
Replace a faulty fuse only with one matching the
specifications stated at the rear of the housing.
•
Disconnect the equipment from the mains be-
fore replacing a fuse.
