3B Scientific Linear Expansion Apparatus with Three Pointers - Manual (Page 3)

3B SCIENTIFIC® PHYSICS
1
Thermal expansion apparatus 8442200
Instruction sheet
07/06SF
1 Steam generator with
silicone hose
2 Base strip
3 Sample tubes
4 Pilot bearing with pointers
5 Scale
1. Safety instructions
• Handle the apparatus with care. The glass tube
is breakable.
• Danger of serious burns! It is a property of all
the materials that these tubes are made of that
they store heat. Therefore, allow the tubes to
cool after every experiment.
2. Description
The thermal expansion apparatus is used for the
simultaneous measurement and comparison of the
coefficient of thermal expansion of tubular bodies
made of different materials.
Three sample tubes are mounted on an aluminium
base strip. The free end of each tube rests on a
pilot bearing. The thermal expansion of the tubes
is demonstrated by three pointers, each of a differ-
ent colour, on a mirror scale.
2.1 Scope of delivery
1 Thermal expansion apparatus
3 Sample tubes (brass, aluminium, glass)
1 Measurement scale with mirror
3 Pointers
3. Technical data
Dimensions: 830 x 80 x 70 mm
Weight: 1200 g approx.
Sample tubes: Brass, aluminium, glass
Dimensions: 700 mm x 6 mm Ø
Tube length: 600 mm
4. Operation
In order to perform the experiment, the following
equipment is additionally required:
1 Steam generator 8624700
• Mount the mirror scale onto the base strip.
• Clamp the pointers below the tubes so as to
facilitate the measurement of thermal expan-
sion.
• Calibrate all pointers to zero.