2 Intended Use .......................................................................................................................................6
3 Technical Data ....................................................................................................................................7
3.1 Mechanical data ........................................................................................................................7
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1 Safety
Safety
CAUTION
1.1 Definitions
To point out dangers and important information,
the following signal words and symbols are used
in these operating instructions:
1.1.1 Safety alert symbol
The safety alert symbol is located in the
safety precautions in the highlighted heading field
on the left next to the signal word (DANGER,
WARNING, CAUTION).
Safety precautions with a safety alert symbol
indicate a danger of injuries.
Be sure to follow these safety precautions to
protect against injuries or death!
Safety precautions without a safety alert symbol
indicate a danger of damage.
1.1.2 Signal words
DANGER
The signal words are located in
the safety precautions in the
WARNING
CAUTION
NOTICE
NOTE
highlighted heading field.
They follow a certain hierarchy
and indicate (in conjunction with
the safety alert symbol, see
Chapter 1.1.1) the seriousness
of the danger and the type of
warning.
See the following explanations:
DANGER
Danger of injuries.
Indicates an imminently hazardous situation,
that will result in death or serious injury if the
corresponding measures are not taken.
WARNING
Danger of injuries.
Indicates a potentially hazardous situation, that
could result in death or serious injury if the
corresponding measures are not taken.
CAUTION
Danger of injuries.
Indicates a potentially hazardous situation, that
may result in minor or moderate injury if the
corresponding measures are not taken.
Danger of damage.
Indicates a potentially hazardous situation that
may result in property damage if the
corresponding measures are not taken.
NOTICE
Indicates a possible disadvantage, i.e.
undesirable conditions or consequences can
occur if the corresponding measures are not
taken.
NOTE
Indicates a possible advantage if the
corresponding measures are taken; tip.
1.2 General safety precautions
WARNING
Improper use of the unit can result in serious
or even fatal injuries!
These operating instructions
must have been read completely and
understood before beginning any work with
or at the pump-motor unit,
must be strictly observed,
must be available at the operating location of
the pump-motor unit.
WARNING
Improper use of the unit can result in serious
or even fatal injuries!
Only operate the pump-motor unit
for the purposes indicated under "Intended
Use"!
with the fluids indicated under 'Intended Use'!
with the values indicated under 'Technical
Data'!
WARNING
Improper use of the unit can result in serious
or even fatal injuries!
All work on and with the pump-motor unit
(transport, installation, operation, shut-down,
maintenance, disposal) may only be carried out
Hair and clothing can be pulled into the unit
or caught and wound up moving parts!
Do not wear long, loose hair or wide, loose
clothes! Use a hair net!
DANGER
Electrical danger!
Work on electrical installations may be carried
out by trained and authorized electricians only!
DANGER
Electrical danger!
Before beginning work on the unit or system, the
following measures must be carried out:
Deenergize.
Secure against being switched on again.
Determine whether deenergized.
Ground and short-circuit.
Cover or block off adjacent energized parts.
DANGER
Electrical danger!
Do not open the motor terminal box until
absence of electricity has been ensured!
WARNING
Danger due to vacuum and gauge pressure:
sudden escape of fluids (skin and eye
injuries),
sudden drawing in of hair and clothing!
Danger due to escaping fluid: Burns!
Use mounting elements, connections, lines,
fittings and containers with sufficient freedom
from leaks and strength for the pressures which
occur.
Check the mounting elements, connections,
lines, fittings and containers for strength, leaks
and firm seating at regular intervals!
WARNING
Danger from rotating parts (external fan,
impeller, shaft):
Cutting/cutting off of extremities,
Grasping/winding up of hair and clothing!
Danger due to vacuum and gauge pressure:
sudden escape of fluids (skin and eye
injuries), sudden drawing in of hair and
clothing!
Danger due to escaping fluid: Burns!
Start-up
and operation only under the following
conditions:
The pump-motor unit must be completely
assembled. When doing so, pay particular
attention to the following components:
– the vacuum pump/compressor cover,
– the muffler on inlet and discharge
connections,
– the fan guard.
The pipes/hoses must be connected to inlet
and discharge connections.
Inlet and discharge connections and the
connected pipes/hoses may not be closed,
clogged or soiled.
Check the mounting elements, connections
of the pipe/hose connections, lines, fittings
and containers for strength, leaks and firm
seating at regular intervals.
WARNING
Danger from rotating parts (external fan,
impeller, shaft):
Cutting/cutting off of extremities,
Grasping/winding up of hair and clo thing!
Danger due to vacuum and gauge pressure:
sudden escape of fluids (skin and ey e
injuries), sudden drawing in of hair and
clothing!
Danger due to escaping fluid: Burns!
Before beginning work on the pump-motor unit
,
take the following measures:
Shut down pump-motor unit and secure
against being switched on again.
Attach a sign on the system controller and on
the control elements for the pump-motor unit:
"DANGER! Maintenance work on vacuum
pump/compressor! Do not switch on!"
Wait for pump-motor unit to come to a
complete stop. Observe run-on time!
Allow pump-motor unit to cool!
Shut-off lines. Release pressure.
Make sure that no vacuum or gauge pressure
Danger from rotating impeller:
Cutting/cutting of off extremities!
The rotating impeller is accessible with the inlet
and discharge connections open!
Do not reach into the unit through open
connections!
Do not insert objects into the unit through the
openings!
WARNING
Danger from rotating impeller:
Cutting/cutting of off extremities!
The rotating impeller is accessible with the inlet
and discharge connections open!
With free entry and exit of gases, i.e. with direct
intake out of or direct feeding into the
atmosphere without piping, the following
therefore applies:
Provide the inlet and discharge connections of
the pump-motor unit either with additional
mufflers or with additional piping of a sufficient
length to prevent access to the impeller!
WARNING
Danger of burns from hot surfaces of the
pump-motor unit and from hot fluids!
High temperatures of up to approx. 160°C
Danger zone:
Fan guard
Hazard:
Long, loose hair can be drawn into external fan
through fan guard grate, even with fan guard
mounted!
Protective measures:
Wear hair net!
Danger zone:
Missing or defective muffler inlet or discharge
connection.
Hazard:
Possible serious hearing damage due to emitted
noise.
Protective measures:
Have missing or defective mufflers replaced.
Conduct a noise measurement in the system
after installing the pump-motor unit. The
following measures can be taken from 85 dB(A)
and must be taken from 90 dB(A):
Mark noise area with a warning sign.
Wear hearing protection.
WARNING
WARNING
WARNING
[320°F] can occur on the surface of the pumpmotor unit.
Cover the pump-motor unit with a suitable touch
protection (e.g. perforated plate cover or wire
cover). Do not touch during operation!
Allow to cool after shut-down!
1.3 Residual risks
Danger zone:
Environment of pump-motor unit.
Hazard:
Possible serious hearing damage due to emitted
noise.
Protective measures:
Conduct a noise measurement in the system
during operation after installing the pump-motor
unit.
WARNING
Danger zone:
Hot surface up to approx. 160°C [320°F].
Hazard:
Possible burns.
Protective measures:
Cover the pump-motor unit with a suitable touch
protection (e.g. perforated plate cover or wire
cover).
The following measures can be taken from
85 dB(A) and must be taken from 90 dB(A):
Mark noise area with a warning sign.
Wear hearing protection.
With free entry and exit of gases, i.e. with
direct intake out of or direct feeding into the
atmosphere without piping, attach an
additional muffler.
handling, installation, commissioning,
operation, shut-down, storage, servicing and
disposal of the G-BH1,G-BH9,
must be completely read and understood by
all operating and servicing personnel before
beginning to work with or on the G-BH1,
G-BH9,
must be strictly observed,
must be available at the site of operation of
the G-BH1, G-BH9.
About the operating and servicing personnel
of the G-BH1, G-BH9
These persons must be trained and
authorized for the work to be carried out.
Work on electrical installations may be carried
out by trained and authorized electricians
only.
The G-BH1,G-BH9
are pump-motor units for generating vacuum
or gauge pressure;
are used to extract, pump and compress
the following gases:
– Air,
– Non-flammable, non-aggressive, non-toxic
and non-explosive gases or gas-air
mixtures.
– With differing gases/gas-air mixtures,
inquire with the Service Department.
are equipped with one of the following kind of
drive motors:
– 3-phase AC drive motor
with a standard or explosion-protected
design
– Single-phase AC drive motor
are intended for industrial applications,
are designed for continuous operation.
With increased switch-on frequency (6x per
hour with equal pauses and operating times)
or with increased gas inflow and ambient
temperature, the excess temperature limit of
the coil and the bearing can be exceeded.
Consult the manufacturer when using under
such conditions.
When operating the G-BH1, G-BH9 the limits
listed in Chapter 3, "Technical Data", Pg. 7 ff.
must always be complied with.
Foreseeable Misuse
It is prohibited
to use the G-BH1, G-BH9 in applications other
than industrial applications unless the
necessary protection is provided on the
system, e.g. guards suitable for children's
fingers;
to use the device in rooms in which explosive
gases can occur if the G-BH1, G-BH9 is not
expressly intended for this purpose;
to extract, to deliver and to compress
explosive, flammable, corrosive or toxic fluids,
unless the G-BH1, G-BH9 is specifically
designed for this purpose;
to operate the G-BH1 with values other than
those specified in Chapter 3, "Technical
Data", Pg. 7 ff.
Any unauthorized modifications of the G-BH1,
G-BH9 are prohibited for safety reasons.
The operator is only permitted to perform the
maintenance and service work described in these
operating instructions.
Maintenance and servicing work which goes
beyond this may only be carried out by
companies which have been authorised by the
manufacturer (ask the service department for
details).
These operating instructions apply only to
pump-motor units with a standard design.
For an explosion-protected design (EEx e II),
see the separate operating instructions.
Measuring-surface sound-pressure level as per
EN ISO 3744, measured at a distance of 1 m
[3.28 ft] at an operating point of approximately
2/3 of the permissible total pressure difference
with the lines connected without a vacuum or
pressure relief valve, tolerance 3 dB (A).
Single-impeller design
Type 1-m measuring-surface
sound pressure level
L [dB (A)]
50 Hz
approx.
60 Hz
approx.
2BH1100-7..0. 52 55
2BH1200-7..0. 57 61
2BH1940-7B.2. 275 606
2BH1300-7..0. 53 56
2BH1940-7B.3. 314 692
2BH1300-7..1. 53 56
2BH1940-7B.4. 324 714
2BH1300-7..2. 53 56
2BH1943-7..2. 330 728
2BH1330-7..0. 53 56
2BH1943-7..3. 339 747
2BH1330-7..1. 53 56
2BH1943-7..4. 349 769
Minimum distances
Minimum distance to fan guard (for sucking in
cooling air):
Type [mm] [inches]
2BH1 1.. - 2BH1 4 34 1.34
2BH1 5.. - 2BH1 9 53 2.09
2BH923… 52 2.05
Minimum distance to face of vacuum
pump/compressor cover: