3B Scientific High Voltage Power Supply 5 kV (115 V, 50__60 Hz) - Manual (Page 2)

3B Scientific GmbH • Rudorffweg 8 • 21031 Hamburg • Germany • www.3bscientific.com
Subject to technical amendments
© Copyright 2012 3B Scientific GmbH
• Disconnect the equipment from the mains
before replacing a fuse.
• Never short the fuse or the fuse holder.
• Never cover the air vents in the housing. This is
necessary in order to ensure sufficient circula-
tion of air required for cooling the internal
components of the equipment.
• The equipment may only be opened/repaired
by qualified and trained personnel.
2. Description
The 5 kV high voltage power supply is a universally
usable non-earthed high voltage source for operat-
ing electron tubes.
It provides a continuously variable stabilized high
voltage with passive current limitation, in a hous-
ing that is safe to handle. It also incorporates a
transformer, insulated against high voltage, to
supply the cathode heater voltage for an electron
tube. A temperature-controlled fan protects the
equipment from overheating.
The 1003309 high voltage power supply is for op-
eration with a mains voltage of 115 V (±10%), and
the 1003310 unit is for operation with a mains
voltage of 230 V (±10%).
3. Technical data
Mains voltage: see rear of housing
High voltage output: 0 - 5000 V DC, max. 2 mA,
max. 5 W
Heater voltage output: 6.3 V AC, max. 3 A, high
voltage resistant up to 6 kV
Overload protection: Primary fuse: see rear of
housing
Secondary protection:
current-limiting resistors
Terminals: 4 mm safety sockets
High-voltage display: analogue
Dimensions: 235x130x155 mm 3 approx.
Weight: 3.5 kg approx.
4. Operation
4.1 General information
• Before switching on the power supply, set the
high voltage regulator to zero (turn 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.
• Set the high voltage regulator to give the re-
quired voltage.
• Before switching off the power supply, set the
high voltage regulator 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 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.