General Information; Changing The Fuse - 3B SCIENTIFIC PHYSICS U33030 Instrucciones De Uso

2. Description
The AC/DC Power Supply 1/ 2/ 3/ ... 15 V, 10 A
provides AC and DC voltages up to 15 V with a cur-
rent up to 15 A.
The AC and DC output voltages are adjustable in
1 V steps and are tapped from the corresponding
output sockets. The DC voltages are stabilised. The
AC and DC outputs are electrically isolated from
each other, and have short-circuit protection.
The U33030-115 AC/DC power supply is for opera-
tion with a mains voltage of 115 V (±10%), and the
U33030-230 unit is for operation with a mains
voltage of 230 V (±10%).
3. Technical data
Mains voltage:
DC output:
AC output:
Max. output power:
Primary fuse:
Terminals:
Dimensions:
Weight:
3B Scientific GmbH • Rudorffweg 8 • 21031 Hamburg • Germany •
see rear of housing
1/ 2/ 3/ 4/ 5/ 6/ 7/ 8/ 9/
10/ 11/ 12/ 13/ 14/ 15 V,
max. 10 A
1/ 2/ 3/ 4/ 5/ 6/ 7/ 8/ 9/
10/ 11/ 12/ 13/ 14/ 15 V,
max. 10 A
150 VA
see rear of housing
4 mm safety sockets
3
170x160x250 mm ap-
prox.
6.3 kg approx.
Subject to technical amendments
© Copyright 2010 3B Scientific GmbH
4. Operation

4.1 General information

•
Before switching on the power supply, turn the
current regulators fully to the left.
•
Connect the power supply to the experimental
setup.
•
Do not switch the power supply on until the
experiment has been fully assembled.
•
Changes to the experimental setup must only
be made with the power supply switched off.
•
Before switching off the power supply, turn the
voltage regulators fully to the left again.
4.2 Obtaining an AC voltage
•
Connect the load to the AC output sockets (3).
•
Switch on the power supply and adjust the
voltage to the desired value by turning the
voltage regulator (7).
4.3 Obtaining a DC voltage
•
Connect the load to the AC output sockets (1).
•
Switch on the power supply and adjust the
voltage to the desired value by turning the
voltage regulator (6).

4.4 Changing the fuse

•
Turn off the power switch and 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.
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