7
BÜCHI
Vac
V-500/V-501/V-502/V-503
2 Safety
2.4
Safety Features
Two fuses (3.15 AT) have been built into the device to protect
it from a short circuit. The pump motor is protected from
overheating by a temperature governor. The pump is 100%
free of oil. The bearings do not require lubrication. All
bearings are completed sealed and self-lubricating.
2.5
Improper Use
Any use of the device other than those given above or any
use of the device which is not in accordance with the
technical data shall be regarded as a misuse. The operator
bears the sole responsibility for any and all damage which
may result from such misuse. The device is not suitable for
pumping liquids or solid particles. The result of such a use
would be the destruction of the pump or a loss in
performance capability.
In particular, the device must not be used in the following ways:
•
Use of the device in rooms which require ex-protected
apparatus.
•
Processing of samples which can explode or ignite due to
a blow, friction, heat, or sparks (e.g., explosives, etc.).
•
Use of the device for digestions (e.g., Kjeldahl)
•
Use of the pump to produce over-pressure
•
Operation of the device in a surrounding temperature
of > 40° C.
2.6
General Risks
In general, risks can arise from
•
Glass parts which are not suitable for use under vacuum
conditions
•
Solvents which can react with one another if they mix in
the pump or in the secondary condenser.
•
Ignition sources in the immediate vicinity of the pump/
pump system outlet.
•
Flammable gases or solvent vapors in the immediate
vicinity of the device.
•
Damaged glass equipment
•
Bent hoses on the outlet side
