3B Scientific Vacuum Experiment Plate User Manual

3B SCIENTIFIC

Vacuum Experiment Plate 1003166

Vacuum Bell Jar 1003167

Instruction sheet

12/12 ALF

®

PHYSICS

1 Polished flange

2 Grip knob
3 2 cocks for hose connec-

tion and for ventilation
4 4-mm safety plug

5 Centre bore hole with

M12 thread

6 Power feed using con-

nection cables and safety

sockets
7 Rubber sealing disc

8 Metal plate mounted on

tripod stand

1. Safety instructions

• Protect the surface of the vacuum experi-

ment plate from moisture, chemicals and
mechanical affects to guarantee that the
system remains vacuum-tight.

Defective vacuum bell jars could implode.

• Before conducting experiments check the

vacuum bell jar for any damage (entrapped
air does not endanger operating safety).

2. Description

Vacuum experiment plate and vacuum bell jar
are used to set up a vacuum chamber for ex­periments in the coarse (low) and fine vacuum
range.

2.1 Vacuum Experiment Plate

The vacuum experiment plate comprises a me­tal plate with rubber sealing disc mounted on a
tripod and two cock valves used for hose con­nection on the pump side as well as for ventila­tion. A center bore hole with M12 thread is used
to secure experiment equipment. A vacuum-tight
power feed with 4-mm safety sockets and two
cables with 4-mm safety plugs are available for
the power supply.

1

2.2 Vacuum Bell Jar

Vacuum bell jar made of glass with grip knob
and polished flange to be set on top of the vac­uum experiment plate

3. Technical data

Vacuum experiment plate

Diameter: 250 mm
Height: 90 mm
Current feed-through: 2-pole with 4-mm safety

sockets

Power feed: via 2 cables approx. 1 m

in length with 4-mm sa-

fety plugs
Electrical limit specs.: max. 48 V, max. 12 A
Vacuum connection: 2 hose nozzles

12 mm and 8 mm Ø

Vacuum bell jar

Inner diameter:: 190 mm
Height: 220 mm

4. Operation

To perform experiments the following equipment
is also required:

1 Rotary-Vane Vacuum Pump, Two-Stage
1003317

1 Vacuum Hose 8 mm 1002619

• Before performing the experiment check for

any damage to the vacuum bell jar.

• Make sure that the sealing disc as well as

the polished edge of the bell jar are dust­free.

• At the start of the experiment, press the

vacuum bell jar against the plate until air
pressure provides sufficient force against
the rubber seal, then let the bell jar go.

• After performing the experiment ventilate the

chamber with the pump switched off and the
evacuation valve closed.

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

Technical amendments are possible

© Copyright 2012 3B Scientific GmbH