BUSCH COBRA BC 0200 F, Installation And Maintenance Instructions Manual

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If the intake line is not equipped with a shut-off device:
u Remove the rubber plate from the intake flange and connect
the intake line to the intake flange
CAUTION
The vacuum pump may not be lifted anymore when it has been
filled with oil.
l Make sure before every transport that the oil has been drained out
of the vacuum pump.
CAUTION
The vacuum pump must remain in a horizontal position when it has
been filled with oil.
Checking the direct cooling
The flow of the cooling water is checked by the flowmeter CWM. The
flowmeter must be connected in such a way that switching-on leads to
a warning at below 2,0 l/min, when the flow drops below 1,5 l/min,
the vacuum pump must be stopped.
Checking the nitrogen supply (dilution gas)
The flow of the nitrogen is checked by the flowmeter DGF. The flow-
meter must be connected in such a way that switching-on leads to an
alarm. The alarm limit can be adjusted depending the type of process.
Checking the nitrogen supply (sealing gas)
The flow of the nitrogen is checked by the flowmeter DGF 2. The flow-
meter must be connected in such a way that switching-on leads to an
alarm. The alarm limit can be adjusted depending the type of process.
Saving the operating parameters
As soon as the vacuum pump is working under normal conditions after
being switched on:
l Measure the working current of the motor and save it as reference
value for all future maintenance and repair work
Recommendations on operation
Application
WARNING
The vacuum pump is designed for use under the conditions speci-
fied here.
If these conditions are not met, there is a risk of damage to or total
destruction of the vacuum pump and its components!
The vacuum pump may only be switched on under the specified
conditions.
The COBRA BC vacuum pumps are designed for use in the field of mi-
croelectronics and similar industries.
They can be used to suck gases and gas mixtures.
WARNING
When using toxic, inflammable and/ or explosive gases, make sure
that the system corresponds in design to applicable local and na-
tional safety regulations and that all applicable safety measures are
followed.
All product-specific safety regulations must be observed.
Solid particles must not get into the vacuum pump. Procedural errors
can result in the pump sucking in a certain quantity of liquid. If the
pump has sucked in liquid, a short drying time is necessary at the end
of the procedure.
The allowed maximum inlet gas temperature depends on the inlet pres-
sure and the type of gas: the lower the inlet pressure (Pa), the higher
the drawn gas temperature (TGas) can be.
The following indicative values for air can be considered:
– Pa > 50 mbar, TGas < 80°C
– Pa < 50 mbar, TGas < 200°C
The vacuum pump is intended for use in a potentially non-explosive
environment.
As far as temperature is concerned, the vacuum pump is suitable for
evacuation of a 300 liters tank. The vacuum pump is not suitable for
continuous duty at a pressure more or equal than 150 (hPa) mbar.
Caution, the operating cycle of 150 (hPa) mbar must not exceed more
than 5 min.
For other applications, contact your Busch representative.
- Maximum inlet pressure: 1 bar (abs).
- With pump running at full speed, do not expose to inlet pressure
> 300 (hPa) mbar.
The vacuum pump is tight down to ultimate pressure.
CAUTION
The surface temperature of the vacuum pump can exceed 50 °C
when the vacuum pump is in operation.
Danger of burns!
The vacuum pump may not be touched when it is in operation. If
touching the pump is unavoidable, wait until the surface tempera-
ture has cooled down or wear protective gloves.
CAUTION
The intensity of the noise of the vacuum pump is higher within a
certain area of the pump.
Risk of hearing damage.
Users must wear ear protection when spending a longer period of
time in the vicinity of a non-insulated vacuum pump.
CAUTION
The COBRA BC 0200 F vacuum pumps are always delivered without
oil and without cooling water.
Operation without oil will result in damage to the vacuum pump!
The vacuum pump must remain in a horizontal position when it has
been filled with oil.
CAUTION
The cooling water flow, which is checked by the flowmeter CWM,
must be at least 2 l/min.
l Make sure that all caps, safeguards and similar covers are mounted
l Make sure that the safeguards are switched on
l
Make sure that the inlet and outlet for the cooling air are not
covered or closed and that the flow of cooling air is not impaired in
any way
l Make sure that the system does not leak. Leakages of dangerous
substances must be prevented
l Make sure that the “Necessary installation instructions” are
followed and especially that adequate cooling is ensured
The following must be noted when the pump is shut down for a longer
period of time:
Installation and start-up
BC 0200 F
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0870767417 (En)