3B Scientific Transformer with Rectifier User Manual

3B SCIENTIFIC

®

PHYSICS

Transformer with Rectifier 3/6/9/12 V, 3 A (115 V, 50/60 Hz)
Transformer with Rectifier 3/6/9/12 V, 3 A (230 V, 50/60 Hz)

1003315 (115 V, 50/60 Hz)
1003316 (230 V, 50/60 Hz)

Instruction sheet

06/12 ALF

1 AC voltage output
2 DC voltage output
3 Voltage selector switch

1. Safety instructions

The transformer with rectifier conforms to all
safety regulations for electrical measuring, con­trol, monitoring and laboratory equipment, as
specified under DIN EN 61010, Section 1, and
the equipment has been designed to meet pro­tection class II. It is intended for operation in a
dry environment, 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 may be assumed for any reason that non­hazardous 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 su­pervised by qualified personnel.

It is not permissible to cascade multi­ple devices and short them out. This
causes overloading of the polyswitch.

• 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
malfunction/operational defect or visible
damage, switch off the unit immediately and
secure it against unintended use.

• Before making any connections, check the

experiment leads for damaged insulation
and exposed wires.

• Replace a faulty fuse only with one matching

the specifications stated at the rear of the
housing.

• Disconnect the equipment from the mains

before replacing a fuse.

• Never short the fuse or the fuse holder.

• The equipment may only be opened/repaired

by qualified and trained personnel.

1

2. Description

The transformer with rectifier provides small
voltages, switchable in four voltage steps, with
outputs in the form of AC voltages or full-wave
rectified DC voltages.

The maximum load for each output is 3 A. Both
outputs are protected against short-circuiting.

The 1003315 transformer is for operation with a
mains voltage of 115 V (±10%), and the
1003316 unit is for operation with a mains volt­age of 230 V (±10%).

3. Technical data

Mains voltage: see rear of housing

Output voltage: 3 / 6 / 9 / 12 V AC/DC

Maximum load: 3 A

Primary fuse: see rear of housing

Secondary fuse: Polyswitch

Short-circuit proofing: Available for single de-

vice.
It is not permissible to
cascade multiple de­vices and short them
out. This causes overlo­ading of the polyswitch.

Terminals: 4 mm safety sockets

Dimensions: 210x170x90 mm

3

ap-

prox.

Weight: 2.6 kg approx.

4. Operation

4.1 General information

• The AC and DC outputs cannot be used at

the same time

• Before connecting the plug to the power

supply, set the voltage selector switch to
zero.

4.2 Obtaining an AC voltage

• Connect the load to the AC output sockets

(1).

• Set the voltage selector switch (3) to give

the required voltage; if necessary connect a
voltmeter in parallel with the load.

• Connect the unit to the mains supply.

4.3 Obtaining a DC voltage

• Connect the load to the DC output sockets

(2).

• Set the voltage selector switch (3) to give

the required voltage; if necessary connect a
voltmeter in parallel with the load.

• Connect the unit to the mains supply.

4.4 Changing the fuse

• Unplug the mains plug.

• Unscrew the fuse holder on the rear side of

the housing with a screwdriver.

• Replace the fuse and reinsert the holder in

its socket.

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 equip­ment itself, never throw
it away in normal do­mestic waste. Local
regulations for the dis­posal of electrical
equipment will apply.

3B Scientific GmbH ▪ Rudorffweg 8 ▪ 21031 Hamburg ▪ Germany ▪ www.3bscientific.com

Subject to technical amendments

© Copyright 2012 3B Scientific GmbH