Elwe Didactic GmbH
▪
Steinfelsstr. 5
▪
08248 Klingenthal
▪
Germany
▪
www.elwedidactic.com
3B Scientific GmbH
▪
Rudorffweg 8
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21031 Hamburg
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Germany
▪
www.3bscientific.com
Subject to technical amendments
© Copyright 2012 3B Scientific GmbH
•
The instrument may only be connected to
the mains via a socket that has an earth
connection.
•
Before making any connections, check the
experiment leads for damaged insulation
and exposed wires.
•
Replace any blown fuses only with new
ones that match the specifications stated on
the rear of the housing
•
Disconnect the equipment from the mains
before replacing a fuse.
•
Never short the fuse or the fuse holder.
•
Never cover the air vents and heat sink at
the rear of the housing. These are neces-
sary in order to ensure sufficient circulation
of air required for cooling the components
inside the equipment.
•
The equipment may only be
opened/repaired by qualified and trained
personnel.
2. Description
The AC/DC power supply provides a continu-
ously adjustable, stabilised AC or DC voltage for
student exercises and experiments. Either AC or
DC output voltage is selected by means of a
toggle switch.
The power supply 1001006 is for operation with
a mains voltage of 115 V (±10%), and the unit
1001007 is for operation with a mains voltage of
230 V (±10%).
3. Technical data
Mains supply voltage: see back panel
Output voltages:
0 – 12 V
Output current:
2 – 8 V, 2 A
8 – 10 V, 3 A
10 – 12 V, 4 A
Output resistance:
50 m
Ω
approx.
Fuse rating:
4 A
Connections:
4 mm safety sockets
Dimensions: 162x170x68
mm
3
approx.
Mass:
2.9 kg approx.
4. Operation
It is recommended to use one of the following
instruments to measure the output voltage:
Analogue Multimeter AM50
1003073
or
Analogue Multimeter AM51
1003074
Caution:
The AC and DC outputs cannot be used at the
same time.
4.1 Obtaining an AC voltage
•
Connect the unit to the mains supply. Turn
the voltage control knob fully to the left.
•
Connect the load to the AC output sockets.
•
Set the toggle switch to AC.
•
Press the mains switch; the mains indicator
light shows green.
•
Set the required voltage using the voltage
control; if necessary, connect a voltmeter in
parallel with the load.
4.2 Obtaining a DC voltage
•
Connect the unit to the mains supply. Turn
the voltage control knob fully to the left.
•
Connect the load to the DC output sockets.
•
Set the toggle switch to DC.
•
Press the mains switch; the mains indicator
light shows green.
•
Set the required voltage using the voltage
control; if necessary, connect a voltmeter in
parallel with the load.
4.3 Changing the fuse
•
Before changing the fuse, unplug the unit
from the mains.
•
Using a screwdriver (or similar tool), un-
screw and lift out the fuse holder.
•
Replace the fuse with a new one with the
same specifications.
•
Screw the fuse holder back into place.
5. Care and maintenance
•
Before cleaning the equipment, disconnect it
from its power supply.
•
Use a soft, damp cloth to clean it.
6. Disposal
•
The packaging should be disposed of at
local recycling points.
•
Should you need to dispose of the equip-
ment itself, never throw it away in normal
domestic waste. Local regulations for the
disposal of electrical equipment will apply.
