24
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FLUID AND GASSES
Barometer, mini
1786.00
For the measurement of
barometric pressure in
millibars and millimeters
of mercury with an
adjustable dial to record
the previous observati-
on. The diameter of the
barometer is only 67.5 mm
which makes it possible to put
1771.00
it inside the “Glass with tube connector” pro-
duct 1786.00 to simulate over and under pres-
sures in the glass container. The barometer can
be calibrated using an adjustment screw.
1771.00 Mini barometer
Student bell jar
This bell jar provides a vacuum chamber for students to perform many
experiments: Watching a balloon expand. Warm water boil as air is pum-
ped from the chamber. Observing that a suction cup no longer sticks when
the jar is evacuated. Hand-Powered Vacuum Pump no. 0715.00 or a 100 ml
plastic syringe and valves can be used for evacuating the Jar. To measure
the pressure in the Student Bell Jar no. 1771.00. Barometer can be used
since it fits into the Bell Jar.
1786.00 Student bell jar
1780.00
Air pump plate
This plate is used with a bell jar for demonstration expe-
riments involving low pressure. The plate is made of PVC
and supplied with rubber feet. There is a vacuum con -
nec tion fitting with a valve and a thumb screw for the
return air. Two standard 4 mm jack connectors are pro -
vided with 4 mm jack connections available inside the
jar. Tube fitting diameter: 10 mm. Plate diameter: 235
mm, height: 40 mm, mass: 1.3 kg.
1780.00 Air pump plate
Bell jar with knob
Used in conjunction with pump plate no. 1780.00 for the
1785.10
production of va cuum. Arranged in heavy glass with
ground flange. Diameter 180 mm, height 250 mm.
1785.10 Bell jar with knob
®
Science Equipment for Education Physics
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