WARNING
When using toxic, inflammable and/or explosive gases, make sure
that the system corresponds in design to applicable local and
national 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
pressure 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
temperature 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 1000, 2000 F vacuum pumps could be delivered
without oil, 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 COBRA BC 1000, 2000 F vacuum pumps are always delivered
without oil, without cooling water.
Operation without coolants will result in damage to the vacuum
pump!
CAUTION
The cooling water flow, which is checked by the flowmeter CWM,
must be at least 3-4 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:
CAUTION
If there is a risk of frost, all the cooling water must be drained out of
the vacuum pump if the pump is shut down for a longer period of
time!
–
Drain the cooling water
u
Pull off the connections for the inlet and outlet of the cooling
water
u
Drain the cooling water completely
u
If necessary, drain the cooling water with the help of
compressed air to prevent any risk of frost or corrosion
Switching the vacuum pump on/ off
First start-up of the system
l
Make sure that the “Necessary installation instructions” are
followed
If the system is equipped with a solenoid gate valve in the cooling
water circuit:
u
Open the solenoid gate valve
l
Make sure that the cooling water flow is set correctly with the
valve CWR:
–
The cooling water circuit (*standard) is used to cool the variators,
the motors and the DP and MB cylinders. The regulating valve
CWR of the cooling water flow is preset at 3-4 l/min.
l
Make sure that the nitrogen flow is set correctly
–
Nitrogen flow injected in the middle hole (8) is preset at 2 l/ min
and can be adjusted with valve DGR 2. Nitrogen flow injected in
the hole on cylinder endplate side is preset at 10 l/ min and can be
adjusted with valve DGR 1.
l
Switch on the vacuum pump
l
Make sure that the system does not leak
If the system is equipped with a solenoid gate valve at the intake:
CAUTION
Do not open gate valve if booster is running at full speed (90 Hz).
Use "Automatic Load Lock"mode or "External Signal" on tool
interface to start/ stop boster (refer to Busch PLC manual).
Risk of primary pump damage.
u
Open the solenoid gate valve
Switching the system off
If the system is equipped with a solenoid gate valve at the intake:
u
Close the solenoid gate valve
Installation and Commissioning
BC 1000, 2000 F
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0870760874 (En)
Summary of Contents for COBRA BC 1000
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