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Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check
carefully the validity of this document with respect to his product. manual-no.: 999100 / 06/05/2008
For
condensable vapours
(water vapour, solvents, ...):
☞
Do not pump vapour before pump has reached its operating
temperature and not with gas ballast valve closed.
☞
Open gas ballast valve. Close gas ballast valve by turning
180°.
☞
The gas ballast valve is open if the arrow on the gas ballast
cap points towards the pump.
☞
With gas ballast valve open ultimate vacuum will be reduced,
pumping speed is decreased.
☞
Use inert gas at the air inlet to avoid the formation of explo-
sive mixtures.
Attention: Important notes regarding the use of gas ballast
☞
Make sure that air/gas inlet through the gas ballast valve never leads to hazardous,
explosive or otherwise dangerous mixtures. If in doubt, use inert gas.
☞
When using air rather than inert gas, risk of significant damage to equipment and/or
facilities, risk of personal injury or even loss of life exists due to the formation of
hazardous and/or explosive mixtures if air and pumped media react inside or at the
outlet of the pump.
gas ballast
+
mbar
Torr
hPa
p
How to change the pressure units
Press key p
▲
or p
▼
during switching on.
☞
The pressure units are displayed, the pressure unit as from
last operation is flashing.
➨
Press key p
▲
or p
▼
to change pressure unit. Press key
stop when controller displays the desired pressure unit to
finish the operation mode.
☞
Setting of interface parameters, see section
“Interface“.
☞
Preselections at the controller, see section “
Modes“.
☞
Use and operation of the controller see section
“How to operate the controller”.
During operation:
Do not start or operate the pump if
pressure at the outlet
is higher than
1.1 bar
absolute
. Attempts to start or operate the pump at higher pressure may cause block-
ade and damage of the motor.
☞
Comply with max. permitted pressure at the outlet and max. permitted pressure
difference between inlet and outlet.
The pump achieves its
pumping speed, ultimate total vacuum
and
vapour pump-
ing rate
only at operating temperature (after approx. 15 minutes).
☞
Prevent internal condensation, transfer of liquids or dust. The diaphragm and valves
will be damaged, if liquids are pumped in significant amounts.
☞
Operate the pump with gas ballast valve open to reduce the condensation of pumped
media (water vapour, solvents, ....) inside the pump.
The motor is protected by a
temperature sensor at the circuit board:
Current limita-
tion if the temperature at the circuit board is higher than 70°C, switching off the pump
if the temperature is higher than 85°C. In case of blockade of the motor (after 10
attempts to start-up) the pump is switched off.
☞
If the pump is switched off due to safety measures, manual reset is necessary.
Isolate the pump from mains. Eliminate cause of failure before restarting the pump.
☞
Avoid high heat supply (e. g. due to hot process gases).
☞
Ensure sufficient air admittance if pump is installed in a housing.
Settings at the controller
