Basic Safety Instructions
8
115051
2.3
Mechanical Systems
Improper use can lead to injuries or material damage. Observe the following instructions:
Only operate the Laboratory-Vacuum-Systems with hoses of the specified dimensions.
The maximum permissible pressure of 1 bar at the suction connection must not be ex-
ceeded.
Hazardous substances must be separated out as far as this is technically possible before
they reach the pump.
External mechanical stresses and vibrations must not be transmitted to the pump. Only
use flexible laboratory hoses for connecting Laboratory-Vacuum-Systems.
The overpressure generated at the pressure port must not exceed 1 bar.
The pump must not be used to suck up fluids. Lay the exhaust pipe so that it slopes
downwards, so allowing condensate to flow out of the pump. Collect the condensate and
dispose of it in an environmentally compatible manner.
CAUTION !
Solid particles in the pumping medium impair the pumping action and can lead to
damage. Prevent solid particles penetrating into the pump.
When handling glass vessels, pay attention to:
Only use glass vessels with a plastic coating for splinter protection.
Only use vessels which are suitable for use with vacuums (e.g. round-bottomed flasks).
We recommend that only glass components supplied by the manufacturer are used.
Do not use Erlenmeyer flasks.
Before each evacuation, check glass vessels for damage which might impair their
strength, replace them if any such damage is found.
Do not heat glass vessels on one side only.
Retardation of the boiling of the gases to be pumped can lead to a sudden pressure in-
crease. Prevent retardation of boiling by means of suitable measures (e.g. turbulent agi-
tation).
2.4
High Temperatures
The diaphragm pump may heat up as a result of the temperature of the gas being pumped
and through compression heat.
Prevent the following maximum permissible temperatures from being ex 40 °C
for the environment and the gas to be pumped.
The motor for single phase alternating current is protected against overload by an
integrated motor protection switch.
