The LCD controller processes the data of the sensors (see chapter
“Communication with the equipment”) as follows:
–
discharge pressure (option)
–
temperature in the cylinder (option)
–
current
–
nitrogen flow rate
–
cooling water flow rate
–
oil temperature
–
control of the cooling liquid flow
–
cooling liquid temperature
See "Installation and Maintenance Instructions, Busch PLC and Busch
LCD (No. 0870758077)".
On/ Off switch
The vacuum pump is delivered with a circuit breaker. The function
start/ stop can be done in Local by using the LCD controller or in
Remote by the production machine.
Safety
Intended use
DEFINITION
: To rule out any misunderstanding, the term “handling”
of the vacuum pump covers transport, storage, installation and opera-
tion of the pump as well as effects on operating states and troublesho-
oting on the vacuum pump.
The vacuum pump is intended for industrial use. It may only be opera-
ted by qualified personnel.
The different application possibilities and limit values for operation des-
cribed in “Product description” and “Installation requirements” must
be observed by the manufacturer of the system into which the vacuum
pump is to be integrated and by users.
The need for personal safety regulations depends in principle on the
type of use. The operator must provide the users with the necessary
means and must inform his personnel about the dangers emanating
from the processed product.
The operator of the vacuum pump must observe the safety regulations
and must train and instruct his personnel accordingly.
Local regulations regarding the motors and electric control elements
must be observed when installing the pump in potentially explosive
environments.
The maintenance instructions must be followed and observed.
These installation and maintenance instructions must be read and un-
derstood before the vacuum pump is used. If you have any doubts,
contact your Busch representative.
Safety information
The vacuum pump is designed and manufactured in compliance with
the latest technical standards and safety regulations. Nevertheless an
element of residual risk remains.
Various safety instructions are to be found in this handbook and on the
pump. These instructions must be followed. You can recognise these
instructions by the signal words DANGER, WARNING and CAUTION,
which are defined as follows:
DANGER
Disregard of this safety instruction will always result in death,
serious injuries or severe damage.
WARNING
Disregard of this safety instruction may result in death, serious
injuries or severe damage.
CAUTION
Disregard of this safety instruction may result in minor or moderate
injuries or damage.
COBRA NS vacuum pump
WZ rotary lobes vacuum pump
DS 3010 E
Safety
0870771509 (En)
Page 7
Filling in oil (OFP)
WARNING!
W
W
Hot surface!
Do not touch!
WARNING!
W
W
Hot surface!
Do not touch!
Draining the oil (ODP)
Draining in
cooling liquid (CLD)
Filling in
cooling liquid (CLF)
WARNING!
W
W
Hot surface!
Do not touch!
Purge, cooling
liquid (CLV)
Oil sight glass (OSG)
Oil sight glass (OSG)
Draining the oil
Filling in oil (OFP)
Filling in oil (OFP)
Filling in oil (OFP)
Oil filling (OFP)
Oil drain plug
(ODP)
Oil sight glass (OSG)
Oil sight glass (OSG)
Oil sight glass (OSG)
