Labobase Multi-user Vacuum Systems for the Laboratory (Base Unit)

Labobase  Multi-user Vacuum Systems for the Laboratory (Base Unit)
Operating Instructions
Read and observe these Operating Instructions!
Labobase®
Multi-user Vacuum Systems for the Laboratory
(Base Unit)
SBC 840
SBC 844
SBC 860
KNF Neuberger GmbH
Alter Weg 3
D-79112 Freiburg
Germany
Phone ++49 / (0)7664 / 5909-0
Fax ++49 / (0)7664 / 5909-99
E-Mail: [email protected]
www.knf.de
KNF 121207-121365 04/16
Translation of original Operating Instructions, english
SBC 840.40
SBC 844.40
SBC 860.40
These Operating Instructions are for the base unit consisting of vacuum pump, high performance condenser, separator and vacuum controller of the system.
There are separate Operating Instructions for the vacuum controller used in the stand-alone workplace.
These Operating Instructions must be observed.
LABOBASE Multi-user Vacuum Systems
Content
Content
Page
1. About this document
4
1.1. Using the Operating Instructions 4
1.2. Symbols and Markings
4
2. Use 5
2.1. Proper Use
2.2. Improper Use
5
5
3. Safety
6
4. Technical Data
8
10.2. Accessory
41
11. Returns
42
12. Health and safety clearance and
decontamination form
43
5. Design and Function
15
5.1. Pump
15
5.1.1. Design
15
5.1.2. Function Diaphragm pump
16
5.2. Vacuum System
17
5.2.1. Design
17
5.2.2. Function Drying System (only for
.40 versions)
19
6. Installation and connection
6.1. Installation
6.2. Connection
21
21
21
7. Operation
24
7.1. Preparing for Start-up
24
7.2. Start-up
24
7.3. Switching pump/system on and
off
26
7.4. Operating the Main Vacuum
Controller
28
7.4.1. Definitions/Elements of Vacuum
Controller
28
7.4.2. Vacuum Regulation
29
7.4.3. Display and Changing of values
for P1, P2, tA, tC
29
7.4.4. Changing of pressure unit
30
7.4.5. Calibration
30
8. Servicing
31
8.1. Servicing Schedule
31
8.2. Cleaning
31
8.2.1. Flushing Pump
31
8.2.2. Cleaning Pump
31
8.2.3. Emptying and Cleaning the
Separator
31
8.2.4. Emptying and Cleaning the
Condenser
31
8.3. Changing Diaphragm and Valve
Plates/Sealings
32
8.3.1. SBC 840, SBC 840.40, SBC 844,
SBC 844.40
32
8.3.2. SBC 860, SBC 860.40
35
9. Troubleshooting
39
10. Ordering Information
10.1. Spare Parts
41
41
Translation of original Operating Instructions, english, KNF 121207-121365 04/16
3
About this document
LABOBASE Multi-user Vacuum Systems
1.
About this document
1.1. Using the Operating Instructions
The operating instructions are part of the pump/system.
 Carefully study the operating instructions before using a pump
or system.
 Always keep the operating manual handy in the work area.
 Pass on the operating instructions to the next owner.
Project systems and pumps
Customer-specific project systems or pumps (systems and pump
models which begin with “PJ” or “PM”) may differ from the operating instructions.
 For project systems and pumps, also observe the agreed upon
specifications.
1.2. Symbols and Markings
Warning
A danger warning is located here.
Possible consequences of a failure to observe the
warning are specified here. The signal word, e.g.
WARNING Warning, indicates the danger level.
 Measures for avoiding the danger and its consequences are specified here.
Danger levels
Signal word Meaning
DANGER
warns of immediate danger
WARNING
CAUTION
Consequences if not observed
Death or serious injuries
and/or serious damage are the
consequence.
warns of possible
Death or serious injuries
danger
and/or serious damage are
possible.
warns of a possibly Minor injuries or damage are
dangerous situapossible.
tion
Tab. 1
Other information and symbols
 An activity to be carried out (a step) is specified here.
1. The first step of an activity to be carried out is specified here.
Additional, consecutively numbered steps follow.
This symbol refers to important information.
4
Translation of original Operating Instructions, English, KNF 121207-121365 04/16
LABOBASE Multi-user Vacuum Systems
2.
Use
Use
2.1. Proper Use
The pump/system is exclusively intended for transferring gases
and vapors.
Owner's responsibility
Operating parameters and
conditions
Only install and operate the pump/system under the operating
parameters and conditions described in chapter 4, Technical data.
Make sure that the installation location is dry and the pump/system
is protected against rain, splash, hose and drip water.
Requirements for
transferred medium
Before using a medium, check the compatibility of the materials of
the pump head, diaphragm and valves with the medium.
Before using a medium, check whether the medium can be transferred danger-free in the specific application case.
Only transfer gases which remain stable under the pressures and
temperatures occurring in the pump.
High performance condenser
The high performance condenser must be installed on the outlet
side of the pump; if it is installed on the inlet side there is a danger
of implosion.
Observe the correct usage of the gas- and cooling liquidconnections on the high performance condenser. Inlet and outlet
connections for the gas are not interchangeable.
Accessories
Laboratory equipment or additional components connected to a
pump/system have to be suitable for use with the pneumatic capabilities of the pump (see chapter 4).
2.2. Improper Use
The pump/system may not be operated in an explosive atmosphere.
The pump/system is not suitable for transferring dusts.
The pump/system is not suitable for transferring liquids.
The vacuum system must not be used where the simultaneous
operation of several processes could lead to the formation of a
reactive, explosive, or otherwise dangerous mixture.
The pump/the system must not be used to create vacuum and
overpressure simultaneously.
An overpressure must not be applied to the suction side of the
pump/ the system.
Translation of original Operating Instructions, English, KNF 121207-121365 04/16
5
Safety
LABOBASE Multi-user Vacuum Systems
3.
Safety
Note the safety precautions in chapters
6. Installation and connection, and 7. Operation.
The pump/system is built according to the generally recognized
rules of technology and in accordance with the occupational safety
and accident prevention regulations. Nevertheless, dangers can
result during their use which lead to injuries to the user or others,
or to damage to the pump/system or other property.
Only use the pump/system when it is in a good technical and
proper working order, in accordance with its intended use, observing the safety advice within the operating instructions, at all times.
Personnel
Make sure that only trained and instructed personnel or specially
trained personnel work on the pump/system. This especially applies to assembly, connection and servicing work.
Make sure that the personnel has read and understood the operating instructions, and in particular the "Safety" chapter.
Working in a safetyconscious manner
Observe the accident prevention and safety regulations when
performing any work on the pump/system and during operation.
Do not expose any part of your body to the vacuum.
Open housing parts with notice sticker (see fig. 1) only after
separating mains plug from power source.
Fig. 1: Notice sticker
Handling dangerous media
When transferring dangerous media, observe the safety regulations when handling these media.
Handling flammable media
Be aware that the pump/the system is not designed to be explosion-proof.
Make sure the temperature of the medium is always sufficiently
below the ignition temperature of the medium, to avoid ignition or
explosion. This also applies for unusual operational situations.
Note that the temperature of the medium increases when the pump
compresses the medium.
Hence, make sure the temperature of the medium is sufficiently
below the ignition temperature of the medium, even when it is
compressed to the maximum permissible operating pressure of the
pump. The maximum permissible operating pressure of the pump
is stated in the technical specifications (see chapter 4).
If necessary, consider any external sources of energy, such as
radiation, that may add heat to the medium.
In case of doubt, consult the KNF customer service.
Environmental protection
6
Store all replacement parts in a protected manner and dispose of
them properly in accordance with the applicable environmental
protection regulations. Observe the respective national and international regulations. This especially applies to parts contaminated
with toxic substances.
Translation of original Operating Instructions, English, KNF 121207-121365 04/16
LABOBASE Multi-user Vacuum Systems
Standards
Safety
The LABOBASE®- vacuum systems conform to the Directive
2011/65/EU (RoHS2).
The LABOBASE®- vacuum systems conform to the safety regulations of the Directive 2014/30/EU concerning Electromagnetic
Compatibility and the Directive 2006/42/EC concerning Machinery.
The following harmonized standards have been used:

DIN EN 61010-1

DIN EN 61326-1 - class A

DIN EN 50581
The pumps correspond to IEC 664:
Customer service and
repairs

the overvoltage category II

the pollution degree 2
Only have repairs to the pump/system carried out by the KNF
Customer Service responsible.
Only authorized personnel should open those parts of the housing
that contain live electrical parts.
Use only genuine parts from KNF for servicing work.
Translation of original Operating Instructions, English, KNF 121207-121365 04/16
7
Technical Data
LABOBASE Multi-user Vacuum Systems
4.
Technical Data
All pumps are secured against overheating with thermal
switches and are equipped with a mains fuse.
Pump materials (for all pump types)
Pump head
Diaphragm
Valve
PTFE
PTFE coated
FFPM
Tab. 2
Refer to the type plate for the pump’s electrical configuration.
8
Translation of original Operating Instructions, English, KNF 121207-121365 04/16
LABOBASE Multi-user Vacuum Systems
Technical Data
SBC 840
Pneumatic performance
Max. permissible operating
pressure [bar g]
Ultimate vacuum [mbar abs.]
Delivery rate at atm. pressure
[l/min]*
1.0
8
max. 34
Pneumatic connection
Hose connection [mm]
ID 10
Ambient and media temperature
Permissible
ambient temperature
Permissible media temperature
+ 5 °C to + 40 °C
+ 5 °C to + 40 °C
Other parameters
Weight [kg]
Dimensions: W x H x D [mm]
Maximum permissible ambient
relative humidity
Maximum altitude of site
[m above sea level]
22.6
450 x 515 x 322
80 % for temperatures up to
31 °C, decreasing linearly to
50 % at 40 °C
2000
Operating parameters of coolant for high performance condensers
Permissible pressure [bar g]
Permissible temperature
Condenser connectors for
coolant tube [mm]
3
- 15 °C to + 20 °C
ID 8
Electrical Data Pump
Voltage [V]
Frequency [Hz]
Maximum current consump-tion
[A]
Power consumption [W]
Maximum permitted mains
voltage fluctuation
Fuse (2x) T [A]
Protection class motor
100
50/60
4.4
115
60
3.2
230
50
1.5
220
+/- 10 %
250
+/- 10 %
245
+/- 10 %
2.5
IP 44
2.5
1.25
100
50/60
275
115
60
305
230
50
300
6.3
6.3
3.15
Electrical Data Electrical Supply Unit
Voltage [V]
Frequency [Hz]
Maximum current consump-tion
[A]
Fuse (2x) T [A]
Electrical Data Vaccum Cotroller
Voltage [V]
Frequency [Hz]
Maximum current consump-tion
[A]
Fuse (internal) [mA]
Tab. 3
90 - 260
50/60
10
280
*Liters in standard state (1,013 mbar
**Power consumption of the whole system inclusive pump and
vacuum controller
Translation of original Operating Instructions, English, KNF 121207-121365 04/16
9
Technical Data
LABOBASE Multi-user Vacuum Systems
SBC 840.40
Pneumatic performance
Max. permissible operating
pressure [bar g]
Ultimate vacuum [mbar abs.]
Delivery rate at atm. pressure
[l/min]*
1.0
 10
max. 34
Pneumatic connection
Hose connection [mm]
ID 10
Ambient and media temperature
Permissible
ambient temperature
Permissible media temperature
+ 5 °C to + 40 °C
+ 5 °C to + 40 °C
Other parameters
Weight [kg]
Dimensions: W x H x D [mm]
Maximum permissible ambient
relative humidity
Maximum altitude of site
[m above sea level]
22.9
450 x 515 x 322
80 % for temperatures up to
31 °C, decreasing linearly to
50 % at 40 °C
2000
Operating parameters of coolant for high performance condensers
Permissible pressure [bar g]
Permissible temperature
Condenser connectors for
coolant tube [mm]
3
- 15 °C to + 20 °C
ID 8
Electrical Data Pump
Voltage [V]
Frequency [Hz]
Maximum current consump-tion
[A]
Power consumption [W]
Maximum permitted mains
voltage fluctuation
Fuse (2x) T [A]
Protection class motor
100
50/60
4.4
115
60
3.2
230
50
1.5
220
+/- 10 %
250
+/- 10 %
245
+/- 10 %
6.3
IP44
6.3
3.15
100
50/60
275
115
60
305
230
50
300
6.3
6.3
3.15
Electrical Data Electrical Supply Unit
Voltage [V]
Frequency [Hz]
Maximum current consump-tion
[A]
Fuse (2x) T [A]
Electrical Data Vacuum Cotroller
Voltage [V]
Frequency [Hz]
Maximum current consump-tion
[A]
Fuse (internal) [mA]
Tab. 4
10
90 - 260
50/60
10
280
*Liters in standard state (1,013 mbar)
**Power consumption of the whole system inclusive pump and
vacuum controller
Translation of original Operating Instructions, English, KNF 121207-121365 04/16
LABOBASE Multi-user Vacuum Systems
Technical Data
SBC 844
Pneumatic performance
Max. permissible operating
pressure [bar g]
Ultimate vacuum [mbar abs.]
Delivery rate at atm. pressure
[l/min]*
1.0
2
max. 40
Pneumatic connection
Hose connection [mm]
ID 10
Ambient and media temperature
Permissible
ambient temperature
Permissible media temperature
+ 5 °C to + 40 °C
+ 5 °C to + 40 °C
Other parameters
Weight [kg]
Dimensions: W x H x D [mm]
Maximum permissible ambient
relative humidity
Maximum altitude of site
[m above sea level]
23.4
450 x 515 x 322
80 % for temperatures up to
31 °C, decreasing linearly to
50 % at 40 °C
2000
Operating parameters of coolant for high performance condensers
Permissible pressure [bar g]
Permissible temperature
Condenser connectors for
coolant tube [mm]
3
- 15 °C to + 20 °C
ID 8
Electrical Data Pump
Voltage [V]
Frequency [Hz]
Maximum current consump-tion
[A]
Power consumption [W]
Maximum permitted mains
voltage fluctuation
Fuse (2x) T [A]
Protection class motor
100
50/60
4.4
115
60
3.2
230
50
1.5
220
+/- 10 %
250
+/- 10 %
245
+/- 10 %
6.3
IP44
6.3
3.15
100
50/60
275
115
60
305
230
50
300
6.3
6.3
3.15
Electrical Data Electrical Supply Unit
Voltage [V]
Frequency [Hz]
Maximum current consump-tion
[A]
Fuse (2x) T [A]
Electrical Data Vacuum Cotroller
Voltage [V]
Frequency [Hz]
Maximum current consump-tion
[A]
Fuse (internal) [mA]
Tab. 5
90 - 260
50/60
10
280
*Liters in standard state (1,013 mbar)
**Power consumption of the whole system inclusive pump and
vacuum controller
Translation of original Operating Instructions, English, KNF 121207-121365 04/16
11
Technical Data
LABOBASE Multi-user Vacuum Systems
SBC 844.40
Pneumatic performance
Max. permissible operating
pressure [bar g]
Ultimate vacuum [mbar abs.]
Delivery rate at atm. pressure
[l/min]*
1.0
4
max. 40
Pneumatic connection
Hose connection [mm]
ID 10
Ambient and media temperature
Permissible
ambient temperature
Permissible media temperature
+ 5 °C to + 40 °C
+ 5 °C to + 40 °C
Other parameters
Weight [kg]
Dimensions: W x H x D [mm]
Maximum permissible ambient
relative humidity
Maximum altitude of site
[m above sea level]
23.7
450 x 515 x 322
80 % for temperatures up to
31 °C, decreasing linearly to
50 % at 40 °C
2000
Operating parameters of coolant for high performance condensers
Permissible pressure [bar g]
Permissible temperature
Condenser connectors for
coolant tube [mm]
3
- 15 °C to + 20 °C
ID 8
Electrical Data Pump
Voltage [V]
Frequency [Hz]
Maximum current consump-tion
[A]
Power consumption [W]
Maximum permitted mains
voltage fluctuation
Fuse (2x) T [A]
Protection class motor
100
50/60
4.4
115
60
3.2
230
50
1.5
220
+/- 10 %
250
+/- 10 %
245
+/- 10 %
6.3
IP44
6.3
3.15
100
50/60
275
115
60
305
230
50
300
6.3
6.3
3.15
Electrical Data Electrical Supply Unit
Voltage [V]
Frequency [Hz]
Maximum current consump-tion
[A]
Fuse (2x) T [A]
Electrical Data Vacuum Cotroller
Voltage [V]
Frequency [Hz]
Maximum current consump-tion
[A]
Fuse (internal) [mA]
Tab. 6
12
90 - 260
50/60
10
280
*Liters in standard state (1,013 mbar)
**Power consumption of the whole system inclusive pump and
vacuum controller
Translation of original Operating Instructions, English, KNF 121207-121365 04/16
LABOBASE Multi-user Vacuum Systems
Technical Data
SBC 860
Pneumatic performance
Max. permissible operating
pressure [bar g]
Ultimate vacuum [mbar abs.]
Delivery rate at atm. pressure
[l/min]*
1.0
2
max. 60
Pneumatic connection
Hose connection [mm]
ID 10
Ambient and media temperature
Permissible
ambient temperature
Permissible media temperature
+ 5 °C to + 40 °C
+ 5 °C to + 40 °C
Other parameters
Weight [kg]
Dimensions: W x H x D [mm]
Maximum permissible ambient
relative humidity
Maximum altitude of site
[m above sea level]
25.0
314 x 552 x 437
80 % for temperatures up to
31 °C, decreasing linearly to
50 % at 40 °C
2000
Operating parameters of coolant for high performance condensers
Permissible pressure [bar g]
Permissible temperature
Condenser connectors for
coolant tube [mm]
3
- 15 °C to + 20 °C
ID 8
Electrical Data Pump
Voltage [V]
Frequency [Hz]
Maximum current consump-tion
[A]
Power consumption [W]
Maximum permitted mains
voltage fluctuation
Fuse (2x) T [A]
Protection class motor
100
50/60
4.8
115
60
2.7
230
50
1.6
260
+/- 10 %
240
+/- 10 %
220
+/- 10 %
6.3
IP54
6.3
3.15
100
50/60
340
115
60
320
230
50
300
6.3
6.3
3.15
Electrical Data Electrical Supply Unit
Voltage [V]
Frequency [Hz]
Maximum current consump-tion
[A]
Fuse (2x) T [A]
Electrical Data Vacuum Cotroller
Voltage [V]
Frequency [Hz]
Maximum current consump-tion
[A]
Fuse (internal) [mA]
Tab. 7
90 - 260
50/60
10
280
*Liters in standard state (1,013 mbar)
**Power consumption of the whole system inclusive pump and
vacuum controller
Translation of original Operating Instructions, English, KNF 121207-121365 04/16
13
Technical Data
LABOBASE Multi-user Vacuum Systems
SBC 860.40
Pneumatic performance
Max. permissible operating
pressure [bar g]
Ultimate vacuum [mbar abs.]
Delivery rate at atm. pressure
[l/min]*
1.0
4
max. 60
Pneumatic connection
Hose connection [mm]
ID 10
Ambient and media temperature
Permissible
ambient temperature
Permissible media temperature
+ 5 °C to + 40 °C
+ 5 °C to + 40 °C
Other parameters
Weight [kg]
Dimensions: W x H x D [mm]
Maximum permissible ambient
relative humidity
Maximum altitude of site
[m above sea level]
25.3
314 x 552 x 437
80 % for temperatures up to
31 °C, decreasing linearly to
50 % at 40 °C
2000
Operating parameters of coolant for high performance condensers
Permissible pressure [bar g]
Permissible temperature
Condenser connectors for
coolant tube [mm]
3
- 15 °C to + 20 °C
ID 8
Electrical Data Pump
Voltage [V]
Frequency [Hz]
Maximum current consump-tion
[A]
Power consumption [W]
Maximum permitted mains
voltage fluctuation
Fuse (2x) T [A]
Protection class motor
100
50/60
4.8
115
60
2.7
230
50
1.6
260
+/- 10 %
240
+/- 10 %
220
+/- 10 %
6.3
IP54
6.3
3.15
100
50/60
340
115
60
320
230
50
300
6.3
6.3
3.15
Electrical Data Electrical Supply Unit
Voltage [V]
Frequency [Hz]
Maximum current consump-tion
[A]
Fuse (2x) T [A]
Electrical Data Vacuum Cotroller
Voltage [V]
Frequency [Hz]
Maximum current consump-tion
[A]
Fuse (internal) [mA]
Tab. 8
14
90 - 260
50/60
10
280
*Liters in standard state (1,013 mbar)
**Power consumption of the whole system inclusive pump and
vacuum controller
Translation of original Operating Instructions, English, KNF 121207-121365 04/16
LABOBASE Multi-user Vacuum Systems
5.
Design and Function
Design and Function
5.1. Pump
5.1.1. Design
N 840.3 FT.18 and N844.3 FT.18
1
2
3
4
5
6
Connection piece
Pneumatic connection
Pump head
Outlet (pressure side)
Inlet (suction side)
Power switch
Fig. 2: Diaphragm pump (shown: pump N 840.3 FT.18)
N 840.3 FT.40.18 and N 844.3 FT.40.18
1
2
3
4
5
6
7
8
9
Connection piece
Pneumatic connection
Pump head
Outlet (pressure side)
Inlet (suction side)
Power switch pump
Venting valve
Power switch drying system
Control box
Fig. 3: Diaphragm pump (shown: pump N 840.3 FT.40.18)
Translation of original Operating Instructions, English, KNF 121207-121365 04/16
15
Design and Function
LABOBASE Multi-user Vacuum Systems
N 860.3 FT and N 860.3 FT.40
1
2
3
4
5
6
7
8
9
Outlet (pressure side)
Connection piece
Pump head
Pneumatic connection
Venting valve (only pump
N 860.3 FT.40 /system
SBC 860.40)
Pump head
Inlet (suction side)
Fan cover
Connecting box
Fig. 4: Diaphragm pump (shown: pump N 860.3 FT.40)
5.1.2. Function Diaphragm pump
1
2
3
4
5
6
7
Outlet valve
Inlet valve
Transfer chamber
Diaphragm
Eccentric
Connecting rod
Pump drive
Fig. 5: Pump head
Diaphragm pumps transfer, compress (depending on pump version) and evacuate gases and vapors.
The elastic diaphragm (4) is moved up and down by the eccentric
(5) and the connecting rod (6). In the downward stroke it aspirates
the gas to be transferred via the inlet valve (2). In the upward
stroke, the diaphragm presses the medium out of the pump head
via the outlet valve (1). The transfer chamber (3) is hermetically
separated from the pump drive (7) by the diaphragm.
16
Translation of original Operating Instructions, English, KNF 121207-121365 04/16
LABOBASE Multi-user Vacuum Systems
Design and Function
5.2. Vacuum System
5.2.1. Design
1
2
3
4
5
6
7
Electrical supply unit
(behind the pump)
Vacuum pump
Base plate
Separator
High performance condenser
Glas flask of high performance condenser
Main vacuum controller
Fig. 6: Description LABOBASE Systems SBC 840, SBC 840.40,
SBC 844 and SBC 844.40
1
2
3
4
5
6
7
Glas flask high performance
condenser
Separator
Base plate
Electrical supply unit
Vacuum pump
Main vacuum controller
High performance condenser
Fig. 7: Description LABOBASE Systems SBC 860 and SBC 860.40
Translation of original Operating Instructions, English, KNF 121207-121365 04/16
17
Design and Function
LABOBASE Multi-user Vacuum Systems
®
The LABOBASE multi-user vacuum system consists of:

Vacuum pump;

high performance condenser with coolant valve;

separator;

main system vacuum controller, which regulates the pump and
coolant valve on the condenser;

electrical supply unit;

optional equipment for the work stations: per workstation
pneumatic connections, and

a vacuum controller (including vent valve) and a vacuum
valve

or a manual vacuum supply point.
Each workstation is connected to the vacuum pump; workstations
with an own vacuum controller can regulate their vacuum separately.
A base plate with support rods supports all system parts.
The Vacuum Pump
The vacuum pump is capable of starting against vacuum, and has
a thermal switch to protect against overheating. The pump is
mounted on a baseplate, and can be removed after withdrawing
two fastening rods (systems SBC 840, SBC 840.40, SBC 844 and
SBC 844.40).
The Separator (suction side)
The separator collects particular matter and droplets. This protects
the pump from contamination and ensures maximum performance
of the pump. The separator is made of a specially treated glass
and features implosion protection.
The High Performance Condenser
The high performance condenser enables condensable components in the vapour to be separated out and hereby removed from
the atmosphere and at the same time protecting the environment.
The condensate is collected in a glass flask. The flask is attached
to the condenser flange with a ball-and-socket joint. The condensation temperature is maintained by running cold water or recirculated coolant through the condenser.
The Main Vacuum Controller
The main vacuum controller regulates the pump and controls the
coolant valve via electrical supply unit.
Electrical Supply Unit
The Electrical Supply Unit consolidates all of the electrical connections for the system and also regulates the pump and the coolant
valve.
18
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LABOBASE Multi-user Vacuum Systems
Design and Function
5.2.2. Function Drying System (only for .40 versions)
The variables of the drying system can be adapted to a process
sequence.
Drying system control box
Switch setting
0
1
2
3
4
5
6
7
8
9
Switch 1
t1 in sec
t3
60.0
90.0
120.0
150.0
180.0
210.0
240.0
300.0
360.0
Switch 2
t2 in sec
1.0
1.5
2.0
2.5
3.0
3.5
4.0
5.0
7.5
10.0
Switch 3
t3 in sec
10.0
15.0
25.0
40.0
60.0
120.0
180.0
300.0
600.0
900.0
Tab. 9: Variables and values
Fig. 8: Control box (opened) of
drying system with switches 1, 2, 3

t1: Time between switching on the drying system and the first
ventilation of the pump heads.

t2: Duration of the ventilation of the pump heads.

t3: The interval between pump head ventilation operations.
Switch
1
2
3
Fig. 9: Switch for setting the drying
system
Changing settings
Switch setting
6
2
3
Time in sec
210.0
2.0
40.0
Tab. 10: Work setting
Extreme danger from electrical shock!
 Disconnect the pump power supply before working
on the pump.
DANGER  Make sure the pump is de-energized and secure.
1. Disconnect the pump from the mains by pulling the plug out of
the socket.
2. Check that the pump and the drying system are dead and
secure them.
3. At the control box, loosen the collar nut of the cable inlet. Use
a slotted screwdriver to release the four screws, then fold the
cover forwards and lay it down (see fig. 8).
The control box may only be opened if there is no risk of
moisture precipitating on the control unit.
4. Set the desired values at switches S1, S2, and S3 (see fig. 8).
See Table 9 for an explanation of the switches and for the values which can be set.
Translation of original Operating Instructions, English, KNF 121207-121365 04/16
19
Design and Function
LABOBASE Multi-user Vacuum Systems
5. Replace the cover on the control box. Take care to ensure that
the seal is properly in place. Tighten the four screws of the
cover to finger tightness. Then tighten the collar nut of the cable inlet.
20
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LABOBASE Multi-user Vacuum Systems
6.
Installation and connection
Installation and connection
Only install the pumps/systems under the operating parameters
and conditions described in chapter 4, Technical data.
Observe the safety precautions (see chapter 3).
6.1. Installation
 Before installation, store the pump/the system at the installation location to bring it up to room temperature.
Dimensions
 See chapter 4, Technical data, for the dimensions of system.
Cooling air supply
 Install the pump/system so that the motor fan can intake sufficient cooling air.
Installation location
 Make sure that the installation location is dry and the
pump/system is protected against rain, splash, hose and drip
water.
 Choose a safe location (flat surface) for the pump/system.
 Protect the pump/system from dust.
 Protect the pump/system from vibration and jolt.
6.2. Connection
Connected components
Pump exhaust
 Only connect components to the pump/the system which are
designed for the pneumatic data of the pump (see chapter 4).
 If the pump is used as a vacuum pump, safely discharge the
pump exhaust at the pump’s pneumatic outlet.
Tubing
The system is supplied with complete tubing (see fig. 6, page 17).
Removal of transport safety
devices
Only LABOBASE systems SBC 860 and SBC 860.40: The vacuum
system is supplied with two transport safety devices which must be
removed before use (see fig. 10 and 11).
On both front sides:
1. Loosen screw A;
2. remove case B.
Fig. 10: Transport safety device
attached
Fig. 11: Transport safety device
removed
Translation of original Operating Instructions, English, KNF 121207-121365 04/16
21
Installation and connection
Tubing of vacuum system
Tube-No.
LABOBASE Multi-user Vacuum Systems
If the tubing for the vacuum system has not yet been installed, this
must be carried out as shown in fig. 12 (systems SBC 840, SBC
840.40, SBC 844 and SBC 844.40) or fig. 13 (systems SBC 860
and SBC 860.40). The tubes required (inside diameter 10 mm)
come supplied with the system.
Approx length
[mm]
Fig. 12:
1
2
3
4
155
195
265
155
Fig. 13:
1
2
3
4
290
330
245
240
Fig. 12: Tubing of vacuum systems
SBC 840, SBC 840.40, SBC
844 and SBC 844.40
Fig. 13: Tubing of vacuum
system SBC 860 and SBC
860.40
Improper laying of hoses will result in damage to the
pump
Pneumatic connection of vacuum system
DANGER
 Correctly assign gas and coolant hose
connections.
 Do not reverse the gas connections’ inlets and
outlets.
1. Attach vacuum system to vacuum connections to the workplace as follows:

Systems SBC 840 and SBC 844:
to flange KF 10 (see Y in fig. 12)

System SBC 860:
to hose connector (tube inside diameter 10 mm)
(see Y in fig. 13)
Danger of the high performance condenser bursting
 Make sure that the high performance condenser´s upper gas outlet is not blocked.
WARNING
2. Connect the condenser gas outlet (fig. 12/Z, 13/Z) to an exhaust.
22
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LABOBASE Multi-user Vacuum Systems
Coolant connection of high
performance condenser
Installation and connection
 The coolant supply can either come direct or through the
cooling system of the rotary evaporator.
The condenser-connectors for the coolant require connection
tubing with an inside diameter of 8 mm.
Coolant inlet and outlet see fig. 14.
 Connect coolant connection to the high perfomance condenser.
When using a coolant valve:
Fig. 14: Coolant supply of high
performance condenser
1 Coolant inlet
2 Coolant outlet
Electrical Connections
Danger of the high performance condenser bursting
 Make sure that the coolant valve is mounted
between the coolant supply and the coolant inlet
port of high performance condenser.
WARNING
The electrical connections should be made according to Fig. 15
 Insert plug of the Electrical Supply Unit into a properly installed
safety socket.
Fig. 15: Electrical connections
1 To System Power Connection
2 To Vacuum Pump
3 Connection vacuum controller
4 Vacuum Controller
5 To Coolant Valve
6 Electrical Supply Unit
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23
Operation
LABOBASE Multi-user Vacuum Systems
7.
Operation
7.1. Preparing for Start-up
Before switching on the pump/system, observe the following
points:
Pump
Pump/
System
System
Operational requirements
 All hoses attached properly

Fan openings not blocked

Specifications of the power supply correspond with
the data on the pump’s/the vacuum system’s type
plate.

The pump outlet is not closed or constricted.

Vapour outlet on the top of the high performance
condenser is not blocked.

The media are compatible with each other when
running two different proccesses simultaneously.

No reactive, explosive or otherwise hazardous
mixtures may be produced when ventilating the
vacuum system through the air inlet. (If necessary,
use an inert gas.)

Clamp connections are tight

All cables attached properly
Tab. 11
7.2. Start-up
 Only operate the pump/the system under the operating parameters and conditions described in chapter 4, Technical data.
 Make sure the pump/the system is used properly (see chapter
2.1).
 Make sure the pump/the system is not used improperly (see
chapter 2.2).
 Observe the safety precautions (see chapter 3).
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LABOBASE Multi-user Vacuum Systems
Operation
Hazard of the pump head bursting due to excessive
pressure increase
WARNING
 Do not exceed max. permissible operating
pressure (see chapter 4).
 Monitor pressure during operation.
 If the pressure exceeds the maximum permissible operating pressure, immediately shut down
pump and eliminate fault (see chapter 9).
 Only throttle or regulate the air or gas quantity in
the suction line to prevent the maximum permissible operating pressure from being exceeded.
 If the air or gas quantity in the pressure line is
throttled or regulated, make sure that the maximum permissible operating pressure of the
pump is not exceeded.
Automatic starting can cause personal injury and
pump damage
When the operation of the pump is interrupted by the
WARNING thermal switch, the pump will restart automatically
after cooling down.
 After triggering of the thermal protection or in the
event of power failure, remove the pump’s mains
plug from the socket so that the pump cannot
start uncontrollably.
 Attempt work on the pump or system only if the
pump/system is separated from mains power.
Venting
Personal injury caused by poisoning or explosion
and damage to the pump.
 Make sure that when running several different
processes simultaneously the media are
WARNING
compatible with each other.
 Make sure that no reactive or explosive mixtures
will be produced when ventilating the vacuum
system through the vent valve (only for .40
versions).
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25
Operation
LABOBASE Multi-user Vacuum Systems
High performance condenser
Danger of high performance condenser bursting
 Make sure that the high performance
condenser’s upper gas outlet is not blocked.
CAUTION
7.3. Switching pump/system on and off
Switching system on
The pump/system may not start up against pressure during
switch-on. This also applies in operation following a brief power
failure. If a pump starts against pressure, it may block. This
activates the thermal switch, and the pump switches off.
 Make sure that no pressure is present in the lines during
switch-on.
Only for systems SBC 840.40, SBC 844.40 and SBC 860.40:
Fig 16: Control box of drying
system (systems SBC840.40 and
SBC844.40)
1 Control box
 If cyclic drying of the pump heads is required in the current
evacuation process, switch the drying system on at the mains
switch of the control box (see fig. 16/1 or fig. 17/1).
The drying system will only work with the pump switched on.
The drying system should only be switched on if a container
has been attached to the pressure line of the pump which will
catch the condensate; otherwise the condensate will flow out
uncontrolled.
When the drying system is switched on, the time period t1 (time
until the first venting of the pumps heads) will begin. If it is
intended that t1 should run from the pump starting, the drying
system should be switched on before the pump.
For the variables t1 to t3 of the drying system, see chapter 7.4.
 Switch on the vacuum controller (fig. 6/7 or fig. 7/6, page 17)
by the switch on the side.
Fig. 17: Control box of drying
system (system SBC860.40)
1 Control box
The pumps from systems SBC 840, SBC 840.40, SBC 844 and
SBC 844.40 each additionally have their own switch. The
vacuum system can only operate if this switch is “on”.
Switching off the system/removing from operation
 When transferring aggressive media, flush the pump prior to
switch-off to increase the service life of the diaphragm (see
chapter 8.2.1).
Only for systems SBC 840.40, SBC 844.40 and SBC 860.40:
 If the drying system is switched on: Switch the drying system
off at the main switch of the control box (see fig. 16/1 or fig.
17/1).
 Open pressure and suction lines to normal atmospheric pressure.
 Switch off the Main Vacuum Controller.
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LABOBASE Multi-user Vacuum Systems
Operation
When the Main Vacuum Controller is switched off, the pump is
automatically switched off with it.
 Disconnect the power source to the Electrical Supply Unit.
 Empty and clean separator (see chapter 8.2.3) and glas flask
of high performance condenser (see chapter 8.2.4).
Only for System SBC 860 and 860.40:
 If the vacuum system is to be transported, the transport safety
devices must be used (see chapter 6.2).
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27
Operation
LABOBASE Multi-user Vacuum Systems
7.4. Operating the Main Vacuum Controller
7.4.1. Definitions/Elements of Vacuum Controller
1 Display of tA and remaining
operating time before the
pump switches off
2 Display of threshold P1 and
P2:
▪ When the pump is
running:
lower threshold value P1
▪ When the pump is not
running:
upper threshold value P2
3 LED display of pump
status
▪ LED illuminated: pump is
running
▪ LED off: pump is not
running
4 Display of actual pressure
in mbar
5 LED display for pressure
reading in mbar
6 LED display for pressure
reading in torr
7 On/Off-Switch
8 LED display for Controller
operation
9 MAN-Key
Starts an evacuation after
interruption by the STOPKey
10 STOP-Key
Stops the program running
11 UP-Key
(for inserting values)
▪ One-touch:
Single step adjustment
▪ Hold down:
Running adjustment
12 DOWN-Key
(for inserting values)
▪ One-touch:
Single step adjustment
▪ Hold down:
Running adjustment
13 SET-Key
To call up and change
previously inserted set
points
28
Fig. 18: Vacuum Controller
P1: Lower threshold value of the pump in mbar
(factory set to 10 mbar)
The pressure at which the pump switches off or at which starts
the delay time tA.
P2: Upper threshold value of the pump in mbar
(factory set to 600 mbar)
The pressure at which the pump restarts.
tA: Delay time:
The period of time from the instant the pressure equals or falls
below the lower threshold value P1 – but without exceeding it
again – until the pump stops (in min) (factory setting for
tA = 60 min)
tC: Delay time before the coolant circuit switches off (in min)
(factory set to 0 min).
Translation of original Operating Instructions, English, KNF 121207-121365 04/16
LABOBASE Multi-user Vacuum Systems
Operation
7.4.2. Vacuum Regulation

After switching on the pump and the Main Vacuum Controller,
the controller will be in the „Start“ mode and the pump will immediately begin to evacuate.

If the lower threshold value P1 for the pump is maintained or
bettered over the period tA, the pump switches off.
Example:
P1 = 10 mbar
tA = 60 min.
If the pump has provided a vacuum of ≤ 10 mbar for 60
minutes, it will switch off.

If the pressure climbs to the upper threshold value P2, the
pump will restart.

During pump operation the coolant valve is actuated. A delay
time tC for the cooling liquid can be entered (see chapter
7.4.3).
7.4.3. Display and Changing of values for P1, P2, tA, tC

Using the SET-Key (fig. 18/13), the current parameters are
indicated.

In the centre display (2), the expressed value is shown, i.e.
„P1“, „P2“, „tA“ oder „tC“). In the right hand display (4), the actual
value is shown.

The different parameters can be called up using the SET-Key
as follows:
Press once: P1
Press twice: tA
Press three times: P2
Press four times: tC
Press five times:
The controller reverts to the original working conditions, however any changes in value are retained.

To change the parameters, use the UP and DOWN arrow keys
(11) and (12).

10 seconds after the last key stroke, the controller will automatically revert back to the original operating condition and will
store any altered values. In this case, pressing the key five
times is not necessary.
Translation of original Operating Instructions, English, KNF 121207-121365 04/16
29
Operation
LABOBASE Multi-user Vacuum Systems
7.4.4. Changing of pressure unit
The physical unit indicating the pressure can be chosen between
mbar and torr.
1. When the controller is switched off, press the MAN key (9) and
switch on the controller with the On/Off-Switch (7) at the same
time.
2. With the DOWN-Key (12) and the UP-Key (11) you can choose
between the units hPA (mbar) and torr.
The LEDs for mbar (5) and torr (6) show the selected pressure
unit.
3. Press STOP-Key (10).
The new pressure unit will be stored after 5 seconds.
The contoller changes to the operating mode.
7.4.5. Calibration
1. Whilst holding the SET-Key down, switch on the vacuum
controller with the on/off-switch.
The "time" display shows "CAL“.
If the "time" display does not show "CAL“, press SET key.
The "time" display shows "CAL“.
2. Press UP-key.
The "setp“ display shows "H1“ .
3. Insert the actual atmospheric pressure, using the UP- or
DOWN-Keys.
4. Press SET-key to override.
30
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LABOBASE Multi-user Vacuum Systems
8.
Servicing
Servicing
8.1. Servicing Schedule
Component
Pump/system
Diaphragm and
valve plates/
sealings
Servicing interval
Regular inspection for external damage or
leaks
Replace at the latest, when pump output
decreases
Tab. 12
8.2. Cleaning
When cleaning, make sure that no liquids enter the inside of
the housing.
8.2.1. Flushing Pump
 Before switching off the pump, flush it with air (if necessary for
safety reasons: with an inert gas) for about five minutes under
atmospheric conditions (ambient pressure).
8.2.2. Cleaning Pump
 Only clean pump with a damp cloth and non-flammable cleaning agents.
8.2.3. Emptying and Cleaning the Separator
1. Unscrew the connecting nozzles (Fig. 19/1).
Fig. 19: Separator
2. Remove separator (2) from the holder (3) and dispose of
contents according to applicable regulations in your area. Then
rinse out the separator.
3. Replace separator (2) into the holder (3).
4. Screw the connecting nozzles (1) back on.
8.2.4. Emptying and Cleaning the Condenser
1. Carefully remove the spring clamp (Fig. 20/1) while supporting
the glass flask (2).
2. Empty and clean the glass flask (2) – observing safety precautions.
3. Re-connect the glass flask (2) to the condenser and replace
the spring clamp (1).
Fig. 20: High performance
condenser
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31
Servicing
LABOBASE Multi-user Vacuum Systems
8.3. Changing Diaphragm and Valve
Plates/Sealings
8.3.1. SBC 840, SBC 840.40, SBC 844, SBC 844.40
Conditions
Tools and material

Pump is switched off and mains plug is removed from the
socket of electrical supply unit

Pump is clean and free of hazardous materials

Tubes removed from pump’s pneumatic inlet and outlet

Pump is removed from baseplate
Qty
1
1
1
Material
Phillips-head screwdriver No. 2
Service Set (see Chapter 10)
Felt-tip pen
Tab. 13
Information on procedure
 Always replace diaphragm and valve plates/sealings together
to maintain the pump performance.
Parts of the individual pump heads can be confused.
 Replace the diaphragm and valve plates/sealings of the individual pump heads consecutively.
Health hazard due to dangerous substances
in the pump!
Depending on the substance transferred, caustic
WARNING burns or poisoning are possible.
 Wear protective clothing if necessary, e.g.
protective gloves.
 Flush pump before replacing the diaphragm and
valve plates/sealings (see chapter 8.2.1).
32
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LABOBASE Multi-user Vacuum Systems
Servicing
Removing pump head
Pumps N 844.3 FT.18 und N 844.3 FT.40.18 (vacuum systems SBC 844 und SBC 844.40) have a round shape of
head, not a hexagonal.
i
1. On the pneumatic head connection (3), loosen the union nuts
(2) by hand. Then slightly loosen the angle-fitting (1) in the
pump head (4) by turning it anticlockwise, so that the connecting tube can be pulled out.
Fig. 21: Removing pump head
2. On both pump heads mark the position of top plate (fig. 24/5),
head plate (fig. 24/6), intermediate plate (fig. 24/8) and adapter
relatively to each other by a drawing line with a felt-tip pen.
This helps to avoid incorrect assembly later.
At pumps N 844.3 FT.18 and N 844.3 FT.40.18 (vacuum
systems SBC 844 and SBC 844.40), twelve (instead of six)
screws must be loosened in the next work step.
3. Loosen the outer screws (5) on the pump heads.
4. Carefully remove pump heads.
For pumps N 844.3 FT.18 and N 844.3 FT.40.18 (vacuum
systems SBC 844 and SBC 844.40): The magnetic valve of the
drying system remains fitted in this situation.
Change diaphragm
Replace the diaphragms of pump heads consecutively in order
to ensure that the same number of diaphragm spacers is used
as before.
1. Push down one diaphragm until other diaphragm is pushed
upwards to its highest position.
2. Carefully unscrew upper diaphragm (1) anti-clockwise using
both hands.
3. Replace spacer thick (2) and spacers thin (3) onto the screw
thread of the new diaphragm (same number and order).
4. Screw in the new diaphragm and tighten it by hand.
5. Complete steps 1 through 4 for the second pump head.
Fig. 22: Changing diaphragm
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33
Servicing
LABOBASE Multi-user Vacuum Systems
Change valve plates/sealings
Replacing the valve plates/sealings of both pump heads
consecutively.
At pumps N 840.3 FT.40.18 and N 844.3 FT.40.18 (vacuumsystems SBC 840.40 and SBC 844.40), three (instead of one)
screws must be loosened in the first work step.
1. At one pump head: Loosen screw(s) (1) in the center of the top
plate (2).
2. Remove top plate (2) and head plate (3) from intermediate
plate (5).
Valve plates/sealings (4) are visible.
3. Remove old valve plate/sealings (4).
4. Clean intermediate plate (5) carefully (if there should be deposits in the recesses in the intermediate plate).
Fig. 23: Changing valve
plates/sealings
5. Insert new valve plates/sealings (4) in the recesses in the
intermediate plate (5).
6. Carry out the steps 1 to 5 for the second pump head.
7. Dispose of the old diaphragms and valve plates/sealings
properly.
Refitting pump head
1. At one pump head: Apply pressure all around the edge of the
diaphragm.
2. Place the intermediate plate (8) with valve plates/sealings on
the adapter in accordance with the felt-tip pen marking.
3. Place the head plate (6) on the intermediate plate (8) in the
position indicated by the guide pin (7).
4. Place the top plate (5) on the head plate (6) in accordance with
the felt-tip pen marking.
Fig. 24: Refitting pump head
At pumps N 844.3 FT.18 and N 844.3 FT.40.18 (vacuumsystems SBC 844 and SBC 844.40), twelve (instead of six)
screws must be tightened in the next work step.
5. Gently tighten screws (4) in diagonal order.
At pumps N 844.3 FT.18 and N 844.3 FT.40.18 (vacuumsystems SBC 844 and SBC 844.40), three (instead of one)
screws must be tightened in the next work step.
6. Insert screw(s) (1) with disk springs (2, 3) in the center of the
top plate (5). In doing so, make sure that the disk springs are
arranged properly (see fig. 24).
7. Screw in the screw/screws (1) in the centre of the pump top
plate (5) until it is flush with the top plate (they are flush with
the top plate); then screw one final half turn to tighten.
8. Carry out steps 1 to 7 for the second pump head.
9. Refit the pneumatic head connection: Place tube onto the
connecting part of the angle fitting, turn angle fitting to a
34
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LABOBASE Multi-user Vacuum Systems
Servicing
straight position and tighten the union nut.
Final steps
1. Remount the pump to the baseplate.
2. Reconnect suction and pressure line to the system.
3. Insert the pumps power cordplug into the socket of the electrical supply unit of system (1 in fig. 6, page 17).
4. Reconnect system to the electricity.
If you have any question about servicing call your KNF technical
adviser (see last page for contact telephone number).
8.3.2. SBC 860, SBC 860.40
Conditions
Tools and material

Pump is switched off and mains plug is removed from the
socket of electrical supply unit

Pump is clean and free of hazardous materials

Tubes removed from pump’s pneumatic inlet and outlet

Coolant tubes removed from high performance condenser

Separator is emptied
Qty
1
1
1
1
Material
Phillips-head screwdriver No. 2
Screwdriver blade width 2 mm
Service Set (see Chapter 10)
Felt-tip pen
Tab. 14
Information on procedure
 Always replace diaphragm and valve plates/sealings together
to maintain the pump performance.
Parts of the individual pump heads can be confused.
 Replace the diaphragm and valve plates/sealings of the individual pump heads consecutively.
Health hazard due to dangerous substances
in the pump!
Depending on the substance transferred, caustic
WARNING burns or poisoning are possible.
 Wear protective clothing if necessary, e.g.
protective gloves.
 Flush pump before replacing the diaphragm and
valve plates/sealings (see chapter 8.2.1).
Translation of original Operating Instructions, English, KNF 121207-121365 04/16
35
Servicing
1
2
3
4
5
6
7
8
9
10
11
12
13
14
LABOBASE Multi-user Vacuum Systems
Top plate
Head plate
Intermediate plate
Diaphragm
Diaphragm spacer
Connecting rod
Counterweight
Cross recessed raised
cheese screw
Valve plate/sealing
Cross recessed raised
countersunk head screw
Disk spring
Side-panel
Union nut of pneumatic
head connection
Housing
Fig. 25: Cross chapter of the pump (symbolic) (for vacuum system
SBC 860 and SBC 860.40)
a) Preparatory steps
1. Remove the glass bulb from the high-performance condenser
and empty it (see chapter 8.2.4).
Do not refit the glass bulb.
2. Slacken the coolant connection nipples on the highperformance condenser (see fig. 14, page 23).
Fig. 26: Positioning of the vacuum
system for service
1 Table edge
3. On the pneumatic head connections, loosen one of the union
nuts (fig. 25/13) by hand. Then slightly loosen the angle-fitting
in the pump head by turning it anticlockwise, so that the connecting tube can be pulled out.
4. Loosen the screws of the accessible side panel (fig. 25/12) and
remove cover.
b) Removing pump head
1. Position the complete vacuum system in such a way that it lies
on one of its faces with one pump head pointing upwards (see
fig. 26). To do this:
-
remove the fuse unit (electrical fuse) of the Electrical Supply Unit (situated directly underneath the mains supply of
the Electrical Supply Unit (fig. 7/4)),
-
position the vacuum system on one of its faces (while positioning system, hold pump until pump head lies on table!).
2. At one pump head: Make a mark on the top plate (fig. 25/1),
head plate (2), intermediate plate (3), and housing (14) with a
felt-tip pen. This is to ensure that the parts will be reassembled
correctly at a later stage.
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LABOBASE Multi-user Vacuum Systems
Servicing
3. Undo the eight screws (8) and lift the pump head off the housing (14).
c) Changing diaphragms
1. Move the counterweight (7) to bring the diaphragm (4) to top
dead centre.
2. Using a small screwdriver, between the housing and the outer
edge of the diaphragm, carefully lift the edge of the diaphragm
lightly upwards at one point (making sure not to damage the
housing). Screw anticlockwise to loosen the diaphragm, but do
not remove it altogether.
3. Reposition the vacuum system.
4. Remove the diaphragm.
5. Take the diaphragm spacer(s) (5) off the connecting rod (6)
and retain them.
6. Check that all parts are free from dirt and clean them if necessary.
7. Put the diaphragm spacer(s) (5) on the thread of the new
diaphragm (4).
8. Fit the new diaphragm (4): hold the connecting rod (6) with one
finger, and gently screw in (clockwise) the diaphragm with diaphragm spacers.
9. Position the vacuum system on one of its faces (while positioning system, hold pump until pump head lies on table!).
10. Move the counterweight (7) until the diaphragm is at the top
dead centre. Using a small screwdriver, between the housing
and the outer edge of the diaphragm, carefully lift the edge of
the diaphragm lightly upwards at one point. Now grip the edge
of the diaphragm on opposite sides (do not overstretch the diaphragm!) and tighten the diaphragm clock-wise.
d) Changing valve plates/sealings
1. Undo the both screws (10).
2. Separate the head plate (2) with top plate (1) from intermediate
plate (3).
3. Remove the valve plates/sealings (9) from the intermediate
plate.
4. Check that the valve seats, the head plate and intermediate
plate are clean. If scratches, distortion, or corrosion are evident
on these parts they should be replaced.
5. Lay the new valve plates/sealings (9) in the recesses in the
intermediate plate. The valve plates/sealings for suction and
pressure sides are identical, as are upper and lower sides of
the valve plates/sealings.
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37
Servicing
LABOBASE Multi-user Vacuum Systems
e) Refitting pump head
1. Move the counterweight (7) to bring the diaphragm (4) to
medium position.
2. Place the intermediate plate (3), with valve plates/sealings (9)
on the housing, in the position indicated by the marking.
3. Place the head plate (2) on the intermediate plate (3) in the
position indicated by the marking.
4. Place top plate (1) in position and insert screws (10) with disk
springs (11), and tighten them until the screw heads are just
fully seated (do not completely tighten the screws, this follows
in step 8!).
The concave side of the first three disk springs must point
away from the screw head, the next three towards it (see fig.
25, detail X).
5. Gently tighten the screws (8), evenly and diagonally.
6. Move the counterweight (7) to check that the pump rotates
freely.
7. Now tighten screws (8) firmly (hand-tight).
8. Tighten each of the screws (10) a half-turn more.
9. Reposition the vacuum system.
Repeat tasks b), c), d), and e) for the second pump head.
At steps b) 1. and c) 9 position the complete vacuum system in
such a way that the second pump head is pointing upwards
f) Final steps
1. If necessary:
-
fix glas flask to condensor
-
insert the fuse unit into the Electrical Supply Unit.
-
remount the coolant connection nipples on the highperformance condenser
2. Refit the the pneumatic head connection:
Place tube onto the connecting part of the angle fitting, turn
angle fitting to a straight position and tighten the union nut
(13).
3. Refit the side-panel (12).
4. Reconnect suction and pressure line to the system.
5. Reconnect coolant tubes to high performance condenser (see
chapter 6, page 21)
6. Reconnect the pump to the electricity supply.
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LABOBASE Multi-user Vacuum Systems
9.
Troubleshooting
Troubleshooting
Extreme danger from electrical shock!
 Disconnect the pump power supply before working
on the pump.
DANGER  Make sure the pump is de-energized and secure.
 Check the pump (see Tab. 15 to 17).
Flow rate, pressure or vacuum too low
The system/the pump does not achieve the output specified in the Technical data or the data sheet.
Cause
Fault remedy
Condensate has collected in pump  Detach the condensate source from the pump.
head.
 Flush pump (see chapter 8.2.1).
 Systems SBC 840.40, SBC 844.40, SBC 860.40:
Switch the drying system on or reduce t3 respectively (see
chapter 7.4 with regard to changing the value which has
been set)
There is gauge pressure on pres-  Change the pressure conditions.
sure side and at the same time
vacuum or a pressure above
atmospheric pressure on suction
side.
All workstations together demand  Reduce flow.
a flow rate that exceeds the capacity of the pump.
Pneumatic lines or connection
 Disconnect pump from system to determine output values.
parts have an insufficient cross
 Eliminate throttling (e.g. valve) if necessary.
section or are throttled.
 Use lines or connection parts with larger cross section if
necessary.
Leaks occur on connections, lines  Check that tubes sit correctly on hose nozzles.
or pump head.
 Replace leaky tubes.
 Eliminate leaks.
Connections or lines completely or  Check connections and lines.
partially jammed.
 Remove the jamming parts and particles.
Head parts are soiled.
 Clean head components.
Diaphragm or valve
plates/sealings are worn.
 Replace diaphragm and valve plates/sealings,
(see chapter 8.3).
After diaphragm and valve
plates/sealings have been
replaced
 Check that the spacers have been replaced onto the
diaphragm screw thread.
 Check head connection and hose connections.
 Possibly carefully tighten the outer screws (fig. 24/4 or fig.
26/8) of the top plate crosswise.
Tab. 15
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39
Troubleshooting
LABOBASE Multi-user Vacuum Systems
System does not run
Cause
Vacuum system is not connected with the power source.
No voltage in the power source
Vacuum system is not switched
on
Pump is not switched on
(not systems SBC 860 and
SBC 860.40)
Mistake in operating the vacuum
controller.
The thermal switch has opened
due to overheating
Fault remedy
 Connect vacuum system to mains power.
 Check room fuse and switch on if necessary.
 Switch on vacuum controller.
 Switch on pump (see fig. 2/6 or fig. 3/6, page 15).
 Operate the vacuum controller correctly (see chapter 7.4).








Remove pump´s mains plug from the socket.
Allow pump to cool.
Trace cause of over-heating and eliminate it.
Fuse in the pump is defective
Remove pump’s mains plug from the socket.
(not systems SBC 860 and
Loosen marked lid on underside of the pump.
SBC 860.40)
Select and replace suitable fuse (see chapter 4).
A fuse of the Electrical Supply
Remove vacuum system mains plug from the socket.
Unit is defect
Fuses are located at the end of Electrical Supply Unit below
the mains connection.
The fuse of the vacuum controlAfter a short period the vacuum controller is re-activated
ler has been triggered.
automatically.
Incorrect electrical connection in  Correctly connect the pump and vacuum controller.
the Electrical Supply Unit
Tab. 16
Vacuum Controller shows unrealistic values
Cause
The factory-set pressure
equalization has changed.
Sensor is defective
Fault remedy
Contact KNF (see page Fehler! Textmarke nicht definiert.).
Contact KNF (see page Fehler! Textmarke nicht definiert.).
Tab. 17
If you are unable to determine any of the specified causes, send
the pump to KNF Customer Service (see last page for the address).
1. Flush the pump to free the pump head of dangerous or aggressive gases (see Chapter 8.2.1).
2. Remove the pump.
3. Clean the pump (see Chapter 8.2.2).
4. Send the pump, together with completed Health and Safety
Clearance and Decontamination Form (Chapter 12), to KNF
stating the nature of the transferred medium.
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LABOBASE Multi-user Vacuum Systems
Ordering Information
10. Ordering Information
10.1. Spare Parts
A Service Set contains all replacement parts needed for one complete service:

2 diaphragms

4 valve plates/sealings
Service Set for Vacuum System
SBC 840
SBC 840.40
SBC 844
SBC 844.40
SBC 860
SBC 860.40
Order-No. Service Set
057359
057359
057359
057359
047499
047499
Tab. 18
10.2. Accessory
Accessory
Gas washing bottle 0.5 liter
1
Coolant valve G /2, ID 8
Order-No.
045886
045075
Tab. 19
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41
Returns
LABOBASE Multi-user Vacuum Systems
11. Returns
Pumps and systems used in laboratories and process-based
industries are exposed to a wide variety of conditions. This means
that the components contacting pumped media could become
contaminated by toxic, radioactive, or otherwise hazardous substances.
For this reason, customers who send any pumps or systems back
to KNF must submit a Health and safety clearance and decontamination form in order to avoid a hazardous situation for KNF employees. This Health and safety clearance and decontamination
form provides the following information, among other things:

physiological safety

whether medium-contacting parts have been cleaned

whether the equipment has been decontaminated

media that have been pumped or used
To ensure worker safety, work may not be started on pumps or
systems without a signed Health and safety clearance and decontamination form.
For optimal processing of a return, a copy of this declaration
should be sent in advance via e-mail, regular mail, or fax to KNF
Customer Service (refer to final page for address). In order to avoid
endangering employees who open the shipment's packaging,
despite any residual hazards, the original version of the Health and
safety clearance and decontamination form must accompany the
delivery receipt on the outside of the packing.
The template for the Health and safety clearance and decontamination form is included with these Operating Instructions and may
also be downloaded from the KNF website.
The customer must specify the device type(s) and serial number(s)
in the Health and safety clearance and decontamination form in
order to provide for the unambiguous assignment of the Declaration to the device that is sent to KNF.
In addition to the customer's declaration of physiological safety,
information about operating conditions and the customer's application are also of importance to ensure that the return shipment is
handled appropriately. Therefore, the Health and safety clearance
and decontamination form requests this information as well.
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LABOBASE Multi-user Vacuum Systems
Health and safety clearance and decontamination form
12. Health and safety clearance and decontamination form
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43
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