LABOXACT Vacuum systems for the Laboratory Operating Instructions

Operating Instructions
Read and observe these Operating Instructions!
LABOXACT®
Vacuum systems for the Laboratory
SEM 810
SEM 820
KNF Neuberger GmbH
Alter Weg 3
79112 Freiburg
Germany
Phone ++49 / (0)7664 / 5909-0
Fax ++49 / (0)7664 / 5909-99
E-Mail: [email protected]
www.knf.de
KNF 121214-121380 04/16
Translation of original Operating Instructions, english
SEM 840
SEM 842
LABOXACT 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
5. Design and Function
5.1. Pump
5.1.1. Design
5.1.2. Function Diaphragm pump
5.2. Vacuum System
5.2.1. Design
5.2.2. Function
13
13
13
13
14
14
15
6. Installation and connection
6.1. Installation
6.2. Connection
16
16
16
7. Operation
7.1. Preparing for Start-up
7.2. Start-up
7.3. Operating the System
7.4. Ending system operation
7.5. Operate digital vacuum meter
18
18
18
20
21
21
8. Servicing
8.1. Servicing Schedule
8.2. Cleaning
8.2.1. Flushing Pump
8.2.2. Cleaning Pump
8.2.3. Emptying and Cleaning the
Separator
8.2.4. Emptying and Cleaning the
Condenser
8.3. Changing Diaphragm and Valve
Plates/Sealings
23
23
23
23
23
9. Troubleshooting
28
10. Ordering Information
10.1. Spare Parts
10.2. Accessory
10.3. Pumps
30
30
30
30
11. Returns
31
12. Health and safety clearance and
decontamination form
32
23
23
24
Translation of original Operating Instructions, english, KNF 121214-121380 04/16
3
About this document
LABOXACT 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/system.
 Always keep the Operating Instructions 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
warns of immediDANGER
ate 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 121214-121380 04/16
LABOXACT Vacuum Systems
Use
2.
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 if the entry of air or gas into
the vacuum system during venting (safety vent valve) could result
in the creation of reactive, explosive or otherwise hazardous mixtures (e.g. with the medium).
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 Translation of original Operating Instructions, English, KNF 121214-121380 04/165
Safety
LABOXACT 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 121214-121380 04/16
LABOXACT Vacuum Systems
Standards
Safety
The LABOXACT®- vacuum systems conform to the Directive
2011/65/EU (RoHS2).
The LABOXACT®- 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 requirements of the following harmonised standards are
fulfilled:

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.
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Technical Data
LABOXACT 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 121214-121380 04/16
LABOXACT Vacuum Systems
Technical Data
SEM 810
Pneumatic performance
Max. permissible operating
pressure [bar g]
Ultimate vacuum [mbar abs.]
Delivery rate at atm. pressure
[l/min]*
1.0
8
max. 10
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: L x H x W [mm]
Maximum permissible ambient
relative humidity
12.1
380 x 481 x 292
80 % for temperatures up to
31 °C, decreasing linearly to
50 % at 40 °C
2000
Maximum altitude of site
[m above sea level]
Maximum permissible operat- 0.1
ing pressure at the inert gas
connection of safety vent valve
[bar g]
Operating parameters of coolant for high performance condensers
Permissible pressure [bar g]
Permissible temperature
Condenser connectors for
coolant for tube [mm]
3
- 15 °C to + 20 °C
ID 8
Electrical Data
Voltage [V]
Frequency [Hz]
Maximum current consumption [A]
Power consumption pump [W]
Maximum permitted mains
voltage fluctuation
Fuse pump
(2x) T [A]
Protection class motor
Tab. 3
100
50/60
1.4
115
60
1.3
230
50
0.6
100
+/- 10 %
110
+/- 10 %
90
+/- 10 %
2.5
2.5
1.25
IP44
*Liters in standard state (1,013 mbar)
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Technical Data
LABOXACT Vacuum Systems
SEM 820
Pneumatic performance
Max. permissible operating
pressure [bar g]
Ultimate vacuum [mbar abs.]
Delivery rate at atm. pressure
[l/min]*
1.0
8
max. 20
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: L x H x W [mm]
Maximum permissible ambient
relative humidity
14.5
420 x 481 x 306
80 % for temperatures up to
31 °C, decreasing linearly to
50 % at 40 °C
2000
Maximum altitude of site
[m above sea level]
Maximum permissible operat- 0.1
ing pressure at the inert gas
connection of safety vent valve
[bar g]
Operating parameters of coolant for high performance condensers
Permissible pressure [bar g]
Permissible temperature
Condenser connectors for
coolant for tube [mm]
3
- 15 °C to + 20 °C
ID 8
Electrical Data
Voltage [V]
Frequency [Hz]
Maximum current consumption [A]
Power consumption pump [W]
Maximum permitted mains
voltage fluctuation
Fuse pump
(2x) T [A]
Protection class motor
Tab. 4
10
100
50/60
1.8
115
60
1.2
230
50
0.7
130
+/- 10 %
130
+/- 10 %
120
+/- 10 %
3.15
2.5
1.6
IP44
* Liters in standard state (1,013 mbar)
Translation of original Operating Instructions, English, KNF 121214-121380 04/16
LABOXACT Vacuum Systems
Technical Data
SEM 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: L x H x W [mm]
Maximum permissible ambient
relative humidity
17.8
440 x 481 x 318
80 % for temperatures up to
31 °C, decreasing linearly to
50 % at 40 °C
2000
Maximum altitude of site
[m above sea level]
Maximum permissible operat- 0.1
ing pressure at the inert gas
connection of safety vent valve
[bar g]
Operating parameters of coolant for high performance condensers
Permissible pressure [bar g]
Permissible temperature
Condenser connectors for
coolant for tube [mm]
3
- 15 °C to + 20 °C
ID 8
Electrical Data
Voltage [V]
Frequency [Hz]
Maximum current consumption [A]
Power consumption pump [W]
Maximum permitted mains
voltage fluctuation
Fuse pump
(2x) T [A]
Protection class motor
Tab. 5
100
50/60
4.4
115
60
3.2
230
50
1.5
220
+/- 10 %
250
+/- 10 %
245
+/- 10 %
6.3
6.3
3.15
IP44
* Liters in standard state (1,013 mbar)
Translation of original Translation of original Operating Instructions, English, KNF 121214-121380 04/1611
Technical Data
LABOXACT Vacuum Systems
SEM 842
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: L x H x W [mm]
Maximum permissible ambient
relative humidity
18.6
440 x 481 x 319
80 % for temperatures up to
31 °C, decreasing linearly to
50 % at 40 °C
2000
Maximum altitude of site
[m above sea level]
Maximum permissible operat- 0.1
ing pressure at the inert gas
connection of safety vent valve
[bar g]
Operating parameters of coolant for high performance condensers
Permissible pressure [bar g]
Permissible temperature
Condenser connectors for
coolant for tube [mm]
3
- 15 °C to + 20 °C
ID 8
Electrical Data
Voltage [V]
Frequency [Hz]
Maximum current consumption [A]
Power consumption pump [W]
Maximum permitted mains
voltage fluctuation
Fuse pump
(2x) T [A]
Protection class motor
Tab. 6
12
100
50/60
4.4
115
60
3.2
230
50
1.5
260
+/- 10 %
290
+/- 10 %
245
+/- 10 %
6.3
6.3
3.15
IP44
*Liters in standard state (1,013 mbar)
Translation of original Operating Instructions, English, KNF 121214-121380 04/16
LABOXACT Vacuum Systems
Design and Function
5.
Design and Function
5.1. Pump
5.1.1. Design
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)
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. 3: 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.
Translation of original Translation of original Operating Instructions, English, KNF 121214-121380 04/1613
Design and Function
LABOXACT Vacuum Systems
5.2. Vacuum System
5.2.1. Design
1
2
3
4
Vacuum pump
Base plate
Separator
High performance condenser
5 Operating unit
6 Fine adjustment valve
7 Digital vacuum meter
8 Safety vent valve
9 Inert gas connection
10 On/Off switch of the system
at control unit
11 On/Off switch of the pump
at control unit
12 On/Off switch of the pump
at pump
A Condenser gas outlet
B Gas inlet
Fig. 4: Description LABOXACT Systems
The LABOXACT vacuum system consists of:

LABOPORT vacuum pump N 810.3 FT.18, N 820.3 FT.18,
N 840.3 FT.18 or N 842.3 FT.18;

high performance condenser;

separator;

digital vacuum meter;

fine adjustment valve;

safety vent valve;

on/off switch of the system;

on/off switch of the pump.
A base plate with support rods supports all system parts. The fine
adjustment valve, safety vent valve, system on/off switch and
pump on/off switch are clearly positioned together within one
operating unit.
The Separator (suction side)
The separator enables collection of 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 vapor 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 condensa14
Translation of original Operating Instructions, English, KNF 121214-121380 04/16
LABOXACT Vacuum Systems
Design and Function
tion temperature is maintained by running cold water or recirculated coolant through the condenser.
The Fine Adjustment Valve
The fine adjustment valve allows the vacuum to be regulated
precisely by turning the valve knob.
The Digital Vacuum Meter
The line-powered digital vacuum meter displays the current pressure in absolute mbars or in torr (depending on current setting).
The Safety Vent Valve
A short press on the head of the safety vent valve produces a light
increase of pressure in the system, a longer press aerates to
atmospheric pressure. An inert gas connection is attached to the
safety vent valve.
5.2.2. Function
The LABOXACT vacuum system facilitates a completely smooth
evaporation in the rotary evaporator (patented system). This method helps to minimize solvent loss and the distillation can be carried
out in a controlled fashion.
At the beginning of evaporation the fine adjustment valve will be
opened until the boiling point is reached. Then the fine adjustment
valve can be closed and the pump switched off. In order to counteract possible leakage from the rotary evaporator, the fine adjustment valve can be opened slightly, if the pump is switched on. By
so doing the pump operates close to its ultimate vacuum, so that
only very small flow rates exist. This removes both the danger of
the boiling pressure in the flask of the rotary evaporator going too
low as a result of high current speed as well as the threat of solvents being carried away.
By using the safety vent valve, the pressure in the flask of the
rotary evaporator can be slightly or greatly increased at any time.
This allows the operator to make adjustments to the process at any
time.
Translation of original Translation of original Operating Instructions, English, KNF 121214-121380 04/1615
Installation and connection
LABOXACT Vacuum Systems
6.
Installation and connection
Only install the pump/system 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
Tubing
 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.
The system is supplied with complete tubing (see fig. 4, page 14).
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. Connect rotary evaporator to the free connection of the separator (fig 4/B, page 14).
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. 4/A, page 14) to an
exhaust.
16
Translation of original Operating Instructions, English, KNF 121214-121380 04/16
LABOXACT 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. 5.
 Connect coolant connection to the high perfomance condenser.
When using a coolant valve:
Fig. 5: Coolant supply of high
performance condenser
1 Coolant inlet
2 Coolant outlet
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
Electrical connection of the
pump
 Insert the plug of the pump into the socket of the operating unit
(pos. 5 in fig. 4, page 14 ).
Electrical connection of the
system
 Connect the operating unit (pos. 5 in fig. 4, page 14) to a
properly installed safety socket.
Translation of original Translation of original Operating Instructions, English, KNF 121214-121380 04/1617
Operation
LABOXACT 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

Vapor 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 (see fig. 4/9,
page 14) (if necessary, use an inert gas)

Clamp connections are tight

All cables attached properly
Tab. 7
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).
18
Translation of original Operating Instructions, English, KNF 121214-121380 04/16
LABOXACT 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.
Pump standstill
 With the pump at a standstill, open pressure and suction lines
to normal atmospheric pressure:

Open fine adjustment valve.

Press the knob of safety vent valve.
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 no reactive or explosive mixtures
will be produced when ventilating the vacuum
WARNING
system through the air inlet.
 Make sure that the media are compatible with
each other (when running two different
processes simultaneously).
Translation of original Translation of original Operating Instructions, English, KNF 121214-121380 04/1619
Operation
LABOXACT 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. Operating the System
The numbered positions within the following instructions refer
to fig. 4, page 14.
Operate the system
1. Prepare the rotary evaporator for destillation.
2. Prepare system for operation
a) Completely close fine adjustment valve (6) by turning knob
in a clockwise direction.
b) Turn on digital vacuum meter (7) by pressing the ON button.
c) Turn on pump using the on/off switch (12) and switch (11)
at operating unit in case this has not yet happened.
The pump may not start up against pressure during
switch-on. 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.
d) Turn on system using the on/off switch (10).
3. With the rotary evaporator submerge the glass flask containing
the liquid to be evaporated into the bath.
4. With the fine adjustment valve (6) slightly reduce the pressure
in the system by turning the valve knob in an anti-clockwise direction.
If the pressure falls too rapidly, i.e. the vacuum is too strong:
aerate the system a little by gently pressing the head of the
safety vent valve (8).
5. Once the distillation starts in the glass flask i.e. the required
vacuum has been reached, the pump can be switched off using the on/off switch (11) of the operating unit. The distillation
process is now running independently. The pump only has to
be restarted using the on/off switch of the system (11) if the
pressure in the system increases because of leakage from the
rotary evaporator.
6. The evaporation rate can be increased as follows:
Change process parameter
20

Increase the rotation speed of the rotary evaporator

Increase the bath temperature of the rotary evaporator
Translation of original Operating Instructions, English, KNF 121214-121380 04/16
LABOXACT Vacuum Systems
Operation

Use smaller flask.
7. Once the process is over:
Aerate system to atmospheric pressure:
a) Completely open fine adjustment valve (6) by turning the
valve knob in an anti-clockwise direction.
b) Aerate system by pressing the knob of the safety vent
valve (8).
7.4. Ending system operation
1. Clean pump:
a) Ensure that fine adjustment valve (fig. 4/6) is completely
open (by turning the valve knob in an anti-clockwise direction).
b) Aerate system for about 20 seconds by pressing the knob
of the safety vent valve (8).
c) Close the fine adjustment valve (6).
Through this procedure possible remains of condensate can be
removed this ensures that the pump will work well when next
used.
2. Switch off system using the on/off switch (10).
3. Remove mains plug of the operating unit of the system (5).
7.5. Operate digital vacuum meter
Switching on
Press and hold on ON button.
Switching off
Press and hold on OFF button.
Pressure indicator: Change units from mbar/hPa to Torr
1. Press ON and OFF buttons simultaneously.
”PAon" or “PAof" display appears.
2. Press ON and OFF buttons once more simultaneously.
Fig. 6: Digital Vacuum Meter
3. Set “0001” by briefly pressing the ON button (down) or OFF
button (up).
4. Press ON and OFF buttons once more simultaneously.
”LoA2” display appears.
5. Press ON and OFF buttons once more simultaneously.
”Torr” display mode has been activated.
”Torr” LED illuminates.
Pressure indicator: Change units from Torr to mbar/hPa
1. Press ON and OFF buttons simultaneously.
“PAon” or “PAof” display appears.
2. Press ON and OFF buttons once more simultaneously.
Translation of original Translation of original Operating Instructions, English, KNF 121214-121380 04/1621
Operation
LABOXACT Vacuum Systems
3. Set “0002” by briefly pressing the ON button (down) or OFF
button (up).
4. Press ON and OFF buttons once more simultaneously.
”LoA1” display appears.
5. Press ON and OFF buttons once more simultaneously.
”mbar/hPa” display mode has been activated.
“mbar/hPa” LED illuminates.
22
Translation of original Operating Instructions, English, KNF 121214-121380 04/16
LABOXACT Vacuum Systems
Servicing
8.
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. 8
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.
2. Remove separator container from the holder and dispose of
contents according to applicable regulations in your area. Then
rinse out the separator container.
3. Replace separator into the holder.
4. Screw the connecting nozzles back on.
8.2.4. Emptying and Cleaning the Condenser
1. Carefully remove the spring clamp while supporting the flask.
2. Empty and clean the flask – observing safety precautions.
3. Re-connect the flask to the condenser and replace the spring
clamp.
Translation of original Translation of original Operating Instructions, English, KNF 121214-121380 04/1623
Servicing
LABOXACT Vacuum Systems
8.3. Changing Diaphragm and Valve
Plates/Sealings
Conditions
Tools and material

Pump is switched off and mains plug is removed from the
socket

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. 9
Information on procedure
 Always replace diaphragm and valve plates/sealings together
to maintain the pump performance.
With multi-head pumps, 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).
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Translation of original Operating Instructions, English, KNF 121214-121380 04/16
LABOXACT Vacuum Systems
Servicing
Removing pump head
Pump N 842.3 FT.18 (vacuum system SEM 842) haa 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.
2. On both pump heads mark the position of top plate (fig. 10/5),
head plate (fig. 10/6), intermediate plate (fig. 11/8) and adapter
relatively to each other by a drawing line with a felt-tip pen.
This helps to avoid incorrect assembly later.
At pump N 842.3 FT.18 (vacuum system SEM 842), twelve
(instead of six) screws must be loosened in the next work step.
Fig. 7: Removing pump head
3. Loosen the outer screws (5) on the pump head/pump heads.
4. Carefully remove pump heads.
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 the 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. Carry out steps 1 to 4 for the second pump head.
Fig. 8: Changing diaphragm
Translation of original Translation of original Operating Instructions, English, KNF 121214-121380 04/1625
Servicing
LABOXACT Vacuum Systems
Change valve plates/sealings
Replacing the valve plates/sealings of both pump heads
consecutively.
At pump N 842.3 FT.18 (vacuum system SEM 842), 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. 9: Changing valve
plates/sealings
5. Insert new valve plates/sealings (4) in the recesses in the
intermediate plate (5).
6. Carry out steps 1 to 5 for the second pump head.
7. Dispose of the old diaphragm 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. 10: Refitting pump head
5. Gently tighten screws (4) in diagonal order.
At vacuum system SEM 842 (pump N 842.3 FT.18), 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. 10).
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
straight position and tighten the union nut.
26
Translation of original Operating Instructions, English, KNF 121214-121380 04/16
LABOXACT Vacuum Systems
Servicing
Final steps
1. Remount the pump to the baseplate.
2. Reconnect system tubing.
3. Insert the pumps power mains plug into the socket of the
operating unit of system (5 in fig. 4, page 14).
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).
Translation of original Translation of original Operating Instructions, English, KNF 121214-121380 04/1627
Troubleshooting
LABOXACT Vacuum Systems
9.
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. 10 to 14).
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).
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.
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 they 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. 10/4) of the
top plate crosswise.
Tab. 10
Pump does not run; the On/Off switch of the system at control unit is switched on, but is not
lit; the On/Off switch of the pump at control unit is switched on, but is not lit; the On/Off
switch of the pump is switched on, but is not lit
Cause
Vacuum system is not connected with the power source.
No voltage in the power source.
Fault remedy
 Connect vacuum system to mains power.
 Check room fuse and switch on if necessary.
Tab. 11
28
Translation of original Operating Instructions, English, KNF 121214-121380 04/16
LABOXACT Vacuum Systems
Troubleshooting
Pump does not run; the On/Off switch of the system at control unit is switched on and is lit;
the On/Off switch of the pump at control unit is switched on and is lit; the On/Off switch of
the pump is switched on, but is not lit
Cause
Pump is not connected with the
control unit.
Fuse in the pump is defective.
Fault remedy
 Connect mains plug of pump to the socket of control unit.
 Remove pump’s mains plug from the socket.
 Loosen marked lid on underside of the pump.
 Select and replace suitable fuse (see chapter 4).
Tab. 12
Pump does not run; the On/Off switch of the system at control unit is switched on and is lit;
the On/Off switch of the pump at control unit is switched on and is lit; the On/Off switch of
the pump is switched on and is lit
Cause
The thermal switch has opened
due to overheating.
Fault remedy
 Remove pump´s mains plug from the socket.
 Allow pump to cool.
 Trace cause of over-heating and eliminate it.
Tab. 13
No display in digital vacuum meter
Cause
Fault remedy
Digital vacuum meter not turned  Turn digital vacuum meter on.
on.
 Turn system on.
System not turned on.
Tab. 14
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 vacuum pump system with completed Health and
safety clearance and decontamination form (see Chapter 12),
to KNF stating the nature of the transferred medium.
Translation of original Translation of original Operating Instructions, English, KNF 121214-121380 04/1629
Ordering Information
LABOXACT Vacuum Systems
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
SEM 810
(pump N 810.3 FT.18)
SEM 820
(pump N 810.3 FT.18)
SEM 840
(pump N 810.3 FT.18)
SEM 842
(pump N 810.3 FT.18)
Order-No. Service Set
057357
057358
057359
057359
Tab. 15
10.2. Accessory
Accessory
Order-No.
KNF High Performance Condenser 057957
(insulated), 250 ml
Tab. 16
10.3. Pumps
LABOPORT Vacuum pumps
N 810.3 FT.18
N 820.3 FT.18
N 840.3 FT.18
N 842.3 FT.18
Order-No.
057500
057501
057502
057634
Tab. 17
30
Translation of original Operating Instructions, English, KNF 121214-121380 04/16
LABOXACT Vacuum Systems
Returns
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 information about, for example:

physiological safety

whether medium-contacting parts have been cleaned

whether the equipment has been decontaminated

media that have been transferred 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 packaging.
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.
Translation of original Translation of original Operating Instructions, English, KNF 121214-121380 04/1631
Health and safety clearance and decontamination form
LABOXACT Vacuum Systems
12. Health and safety clearance and decontamination form
KNF worldwide
Please find our local KNF partners at: www.knf.com

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