3B Scientific Piston Vacuum Pump User Manual

3B SCIENTIFIC

Piston vacuum pump U8421210

Instruction sheet

10/10 ALF

®

PHYSICS

1 Vacuum hose
2 Foot stirrup
3 Pump housing
4 Hose connection
5 Handle

1. Safety instructions

Caution: danger of overturning or breakage if used
in an improper manner.

• Place your foot firmly on the stirrup provided

for this purpose.

• Do not put your weight on or bend over the

pump or the piston rod.

• Carefully select the distance between the pump

and the experimental apparatus to ensure that the
vacuum hose is not ripped out or disconnected.

2. Description

The piston vacuum pump can be used for all vac­uum experiments in which a final pressure of
400 hPa is required.

This vacuum pump operates on the principle of a
double-stroke piston pump. Air is pumped out of
the experiment apparatus both during the upward
and the downward movement of the piston.

2.1 Scope of delivery

1 Piston vacuum pump
1 Vacuum hose, 5 mm diam.

3. Technical data

Final pressure: 400 hPa
Hose connection: 5 mm diam.
Dimensions: 160 x 235 x 560 mm
Weight: approx. 1.7 kg

1

3

4. Sample experiment

4.1 Propagation of sound waves in air

In order to conduct this experiment, the following
apparatus is additionally required.

1 Vacuum cylinder U8421230
1 Base plate U8421225
1 Electric doorbell U21854
1 AC/DC Power Supply U33030
Experiment leads

5. Maintenance

Make sure that the sealing rings are always prop­erly lubricated. To do so, carry out the following
steps:

• Unscrew the lid and remove it along with the

piston. If necessary, clean and lubricate these
components.

• While reassembling, insert the piston properly.

Make sure that the components are assembled
to fit perfectly before screwing them on (also
see the instructions printed on the pump).

Elwe Didactic GmbH • Steinfelsstr. 6 • 08248 Klingenthal • Germany • www.elwedidactic.com

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

Subject to technical amendments.

© Copyright 2010 3B Scientific GmbH