3B Scientific 1023406 High Voltage Power Supply Instruction Manual

: October 30, 2023
: 3B Scientific

Table of Contents

Safety instructions
Description
Scope of delivery
Technical data
Operation with charge storage device
Disposal
Documents / Resources

3B SCIENTIFIC® PHYSICS
High-Voltage Power Supply 25kV (230 V, 50/60 Hz) 1023406
High-Voltage Power Supply 25kV (115 V, 50/60 Hz) 1023789
Instruction Manual
03/23 TL 3B Scientific 1023406 High Voltage Power
Supply

High voltage output (positive)
Switch for voltage output, On/Off
Power indicator
Connection for AC power supply
2 x Ground socket

Safety instructions

Plug-in power supply 230 V (1001014)/ 115 V (1009545):

Operation only with the mains voltage according to the imprint.
Do not use the device if there is visible damage to the housing, plug or cable.
High-voltage power supply 230V (1023406) and 115V (1023789):
Operate the high-voltage power supply only in dry rooms and do not expose it to liquids.
Do not operate the device without earthing (see 5.3).
Danger of ignition due to arc discharges – do not use flammable substances in the experimental environment.
Do not short-circuit the high-voltage socket to ground (5).
Switch the device to “0” after use or disconnect the power supply unit.
The high-voltage output should not be touched. Touching it can cause shock reactions and should be avoided by careful handling.
When connecting external capacitors, ensure that the stored energy W does not exceed W = 350 mJ (W = 0,5 C U²). At 25 kV, Cmax is thus approx. 1.1 nF.
When transmitting high voltages >1 kV by cable, the laboratory cable should not rest on metal parts (possibly insufficient dielectric strength of the cable insulation).

Description

The high-voltage power supply provides a stabilized, positive high voltage selectable in five steps from 5 kV to 25 kV for experiments in electrostatics. To apply charges to components such as condenser plates, conductor spheres, charge carriers, etc., the 1023416 charge storage device (820pF /25 kV) is recommended. It can be used to apply charges of both polarities.

Scope of delivery

1 High-voltage power supply
1 Plug-in power supply 230 V (1001014) or 115 V (1009545)
Recommended products:
Charge storage device (1023416)

Technical data

High-voltage:
Stabilized, positive high voltage between voltage output (1) and ground socket (5) selectable in five steps from 5 kV to 25 kV.
Precision: ± 2.5 %
Current max. 100 µA
Voltage stable up to max. 25 µA
Supply voltage: 12 V AC
Switch (2): „0“: device switched off „5“, „10“, „15“, „20“, „25“: voltage in kV
Connections:
1 x high voltage output (1)
1 x hollow socket (4), supply voltage
2 x ground socket (5)
Dimensions: 110 x 170 x 30 mm ³
Weight: 350 g

Operation with charge storage device

The ground sockets (5) are internally connected and reference potential for the high voltage. One of the sockets (5) has to be connected to PE or basic ground of the experiment (see 5.3).
Connect the second ground socket (5) via laboratory cable to the blue side of the charge storage device (see (6) in Fig. 1).
Connect 12V /AC plug-in power supply to high-voltage power supply via socket (4).
Select high voltage with switch (2) (e.g.10 kV).
Plug the red side of the charge storage device into the high-voltage output (1) fora few seconds.
Remove the charge storage device and switch off the high-voltage power supply unit with (2).

5.1 Positive Charge

Do not disconnect the ground connection between the charge sensor and the ground socket (5).
The contact pin on the red side can be used to apply positive charges to e.g. charge carrier spheres by making a brief contact.

3B Scientific 1023406 High Voltage Power Supply - High voltage power
1

5.2 Negative charge

Charge the charge storage device as described section 5.
Carefully disconnect the ground cable from the blue side and connect it to the red side of the charge storage device.
The contact pin on the blue side can be used to apply negative charges to e.g. charge carrier balls by making a brief contact.

5.3 Ground connection (PE)

The ground connection prevents the unintentional electrostatic charging of parts of the experimental setup or the environment and the person performing the experiment. Such charges can interfere with the experiment and contribute to measurement errors.
Establish ground connection with grounding plug: Insert the grounding plug into a correctly installed grounding contact socket (type F according to CEE 7/3) and connect it to the ground socket of the high-voltage power supply unit (5) via the 4mm socket and a laboratory cable. Alternatively, the ground connection can be made via laboratory cable from a 4mm ground socket on the power supply block of the physics laboratory or from the PE socket of a connected laboratory device.
Note: Electrostatic charges are also generated by clothing, shoe soles, etc. and should be discharged before each measurement by briefly touching a PE contact pin.

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 Ludwig-Erhard-Str. 20 20459 Hamburg
Deutschland
www.3bscientific.com
Technische Änderungen vorbehalten
© Copyright 2023 3B Scientific GmbH

Documents / Resources

| 3B Scientific 1023406 High Voltage Power Supply [pdf] Instruction Manual
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