3B SCIENTIFIC PHYSICS 1003312 Інструкція з експлуатації - Сторінка 2
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Never cover the air vents in the housing.
This is necessary in order to ensure suffi-
cient circulation of air required for cooling
the internal components of the equipment.
The equipment may only be opened/re-
paired by qualified and trained personnel.
2. Description
The 0 – 20 V, 0 – 5 A DC power supply provides
a DC voltage up to 20 V and a DC current up to
5 A.
The output voltage and output current are con-
tinuously variable. The unit can be used either
as a constant voltage source with current limita-
tion or as a constant current source with voltage
limitation. When the cv LED is illuminated it
shows that the unit is operating as a constant
voltage source, whereas the cc LED shows that
it is operating as a constant current source. The
output is protected against short-circuiting.
The 1003311 DC power supply is for operation
with a mains voltage of 115 V (±10%), and the
1003312 unit is for operation with a mains volt-
age of 230 V (±10%).
3. Technical data
Mains voltage:
DC output:
Output power:
Stability under
full load:
Residual ripple:
Displays:
Primary fuse:
Terminals:
Dimensions:
130x150x300 mm
Weight:
4. Operation
4.1 General information
Before switching on the power supply, set
the current and voltage regulators to zero
(turn fully to the left).
Connect the power supply to the experi-
mental setup.
Do not switch the power supply on until the
experiment has been fully assembled.
3B Scientific GmbH ▪ Ludwig-Erhard-Str. 20 ▪ 20459 Hamburg ▪ Germany ▪ www.3bscientific.com
see rear of housing
0 – 20 V, 0 – 5 A
100 W
≤0,01% + 5 mV
≤0,2% + 5 mA
≤1 mV, 3 mA
2 x 3 digit LED
see rear of housing
4 mm safety sockets
3
approx.
4,7 kg approx.
Subject to technical amendments
© Copyright 2022 3B Scientific GmbH
Changes to the experimental setup must
only be made with the power supply
switched off.
Set the current regulator to give the required
current.
Set the coarse and fine voltage regulators
to give the required voltage.
Before switching off the power supply, set
the current and voltage regulators to zero
again (turn fully to the left).
4.2 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.
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 lo-
cal 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.