KNF LABOPORT SC820G Wiring diagram

SC820G / SC840G
TRANSLATION OF ORIGINIAL
OPERATING INSTRUCTION
ENGLISH
KNF 339416-339418 06/22
Lab
Notice!
Before operating the pump and accessories, read and observe the operat-
ing and installation instructions as well as the safety information!
VACUUM SYSTEM
LABOPORT®
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US

Table of contents
1 Scope of delivery................................................................................... 4
2 About this document ............................................................................. 6
2.1 Using the operating instructions.................................................... 6
2.2 Exclusion of liability....................................................................... 6
2.3 Applicable documents................................................................... 7
2.4 Symbols and markings.................................................................. 7
2.5 List of abbreviations .................................................................... 10
3 Safety .................................................................................................. 11
3.1 Personnel and target group ........................................................ 11
3.2 Responsibility of the operator ..................................................... 12
3.3 Working in a safety conscious manner ....................................... 12
3.4 Operating conditions ................................................................... 13
3.5 Media .......................................................................................... 13
3.6 Use.............................................................................................. 14
3.7 Directives and standards ............................................................ 15
3.8 Customer service and repair....................................................... 16
3.9 Disposal ...................................................................................... 16
4 Explosion protection............................................................................ 18
4.1 Using for transferring explosive atmospheres............................. 18
4.2 Information on the Ex-designation .............................................. 19
4.3 Explanations of the explosion protection designation ................. 20
5 Technical data..................................................................................... 26
6 Product description and function......................................................... 32
6.1 SC820G, SC840G ...................................................................... 32
6.2 Vacuum controller ....................................................................... 34
6.3 Pump........................................................................................... 36
6.4 Gas ballast .................................................................................. 37
7 Transport............................................................................................. 38
8 Commissioning.................................................................................... 40
8.1 Preparing for commissioning ...................................................... 42
8.2 Perform commissioning .............................................................. 43
8.3 Switching the vacuum controller on and off ................................ 48
8.4 Connecting the vacuum controller to the vacuum system .......... 50
9 Operation ............................................................................................ 51
10 Operating the vacuum system ............................................................ 55
10.1 Vacuum controller ....................................................................... 55

10.2 Operation without the vacuum controller .................................... 72
11 Servicing ............................................................................................. 73
11.1 Servicing schedule...................................................................... 74
11.2 Cleaning...................................................................................... 75
11.3 Replace diaphragm, valve plates/seals and O-rings................... 76
11.4 Change O-rings on the complete vacuum system (optional) ...... 85
12 Spare parts and accessories............................................................... 88
12.1 Spare parts ................................................................................. 88
12.2 Accessories................................................................................. 90
13 Troubleshooting .................................................................................. 91
14 Returns................................................................................................ 98
Index ................................................................................................... 99

Scope of delivery Vacuum system SC820G / SC840G
4Translation of Originial Operating Instruction, KNF 339416-339418 06/22
1 Scope of delivery
§Laboport ® vacuum system:
SC820G or SC840G
§Vacuum controller
§USB cable
§Charging cradle
§Bluetooth stick vacuum controller
§Bluetooth stick vacuum system
§Signal cable
§Coated collection flasks (2x)
§Flask clamp (2x)
§Key for hose connector (WAF 14)
§Power supply incl. plug insert (EU, US, UK, AU)
§Power cable
§Operating instructions
§QuickStart
Fig.1: Scope of delivery (SC820G illustrated as example)

Vacuum system SC820G / SC840G Scope of delivery
Translation of Originial Operating Instruction, KNF 339416-339418 06/22 5
Unpack vacuum system
1. Check the vacuum system and the accessories supplied
for transport damage after unpacking.
2. If the packaging is damaged, inform the responsible for-
warding agent so that a damage report can be prepared.
For further information, read Chapter 7 Transport [}38].
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About this document Vacuum system SC820G / SC840G
6Translation of Originial Operating Instruction, KNF 339416-339418 06/22
2 About this document
2.1 Using the operating instructions
The operating instructions are part of the vacuum system.
àIn the event of uncertainties with regard to the content of
the operating instructions, please contact the manufac-
turer (contact data: see www.knf.com). Have the type and
serial number of the vacuum system at hand when doing
so.
àRead the operating instructions before putting the vacuum
system into operation.
àOnly pass the operating instructions on to the subsequent
owner in full and unchanged.
àKeep the operating instructions within reach at all times.
Project systems
For customer-specific project systems (system types begin-
ning with "PJ", "PM", "PU" or "MPU"), deviations from the op-
erating instructions may occur.
àFor project systems, also observe the agreed specifica-
tions.
2.2 Exclusion of liability
The manufacturer assumes no liability for damages and mal-
functions resulting from failure to observe the operating in-
structions.
The manufacturer assumes no liability for damages and mal-
functions resulting from changes or modifications to the de-
vice and improper handling.
The manufacturer assumes no liability for damages and mal-
functions resulting from impermissible spare parts and acces-
sories.

Vacuum system SC820G / SC840G About this document
Translation of Originial Operating Instruction, KNF 339416-339418 06/22 7
2.3 Applicable documents
The listed documents must also be observed. The valid ver-
sions are available at www.knf.com/Downloads.
§Data sheet
§3D model
Also to be observed are:
§Local terms and conditions
§Sales documents and agreement between KNF and cus-
tomer.
2.4 Symbols and markings
Warning notice
WARNING
A notice that warns you of danger is lo-
cated here.
Possible consequences of a failure to
observe the warning notice are speci-
fied here. The signal word, e.g., Warn-
ing, indicates the danger level.
àMeasures for avoiding the danger
and its consequences are speci-
fied here.
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About this document Vacuum system SC820G / SC840G
8Translation of Originial Operating Instruction, KNF 339416-339418 06/22
Danger levels
Signal word Meaning Consequences if
not observed
DANGER warns of immediate
danger
Death or serious in-
jury or serious
damage will result.
WARNING warns of possible
danger
Death, serious in-
jury or serious
damage is possi-
ble.
CAUTION warns of a possibly
dangerous situation
Minor injury or
damage is possi-
ble.
NOTICE Warns of possible
damage
Damage is possi-
ble.
Tab.1: Danger levels
Other notices and symbols
àAn activity to be carried out is specified here (a step).
1. The first step of an activity to be carried out is specified
here.
Other sequentially numbered steps follow.
This symbol indicates important information.

Vacuum system SC820G / SC840G About this document
Translation of Originial Operating Instruction, KNF 339416-339418 06/22 9
Explanation of pictograms
Pictogram Meaning
General warning symbol
Warning of hot surface
Warning of electrical voltage
Warning of explosive materials
Warning of poisonous substances
ESD protected area
Observe the operating instructions
General mandatory sign
Unplug mains plug
Use foot protection
Use hand protection
WEEE
Symbol for separate tracking of electrical
and electronic devices. The use of this sym-
bol means that this product must be dis-
posed of with normal household waste.
Tab.2: Explanation of pictograms
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About this document Vacuum system SC820G / SC840G
10 Translation of Originial Operating Instruction, KNF 339416-339418 06/22
2.5 List of abbreviations
Abbreviation Term
PTFE Polytetrafluoroethylene
FFPM Perfluoro rubber
PVDF Polyvinylidene fluoride
PP Polypropylene
FPM Fluororubber
FEP Fluoroethylene propylene
Tab. Table
Fig. Figure
a/o. And/or
e.g. For example
Perm. Permissible
et al. And the like
opt. If necessary
Max. Maximum
Min. Minimum
HLK High-performance condenser
AS Separator
HT Vacuum controller
LS Charging cradle

Vacuum system SC820G / SC840G Safety
Translation of Originial Operating Instruction, KNF 339416-339418 06/22 11
3 Safety
Observe the safety notices in Chapters 8 Commissioning
[}40] and 9 Operation [}51].
3.1 Personnel and target group
Personnel Make sure that only specially trained and instructed personnel
work on the vacuum systems. This applies in particular to
commissioning and servicing work.
Make sure that the personnel have read and understood the
operating instructions, particularly the chapter on safety.
Target group Target group Definition
User Laboratory worker
Specialized personnel Specialized personnel are
personnel who
- have relevant professional
training in the field covered in
the particular section of text;
- have current knowledge of
the field covered in the partic-
ular section of text.
Tab.3: Target group
Who-does-what
matrix
Lifecycle phase User Specialized per-
sonnel
Transport X
Setup X X
Preparing for com-
missioning
X X
Commissioning X X
Operation X X
Servicing X
Troubleshooting X
Disposal X
Tab.4: Who-does-what matrix
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Safety Vacuum system SC820G / SC840G
12 Translation of Originial Operating Instruction, KNF 339416-339418 06/22
3.2 Responsibility of the operator
The vacuum systems are built according to the generally ac-
cepted rules of engineering and the occupational safety and
accident prevention regulations. Nevertheless, dangers can
arise during their use that lead to injuries to the user or third
parties or to damage to the vacuum system or other property.
Make sure that no hazardous situation, physical damage or
impairment of the vacuum system can occur.
Operating
parameter
Operate and set up the vacuum systems only under the oper-
ating parameters and operating conditions described in Chap-
ters 3.4 Operating conditions [}13] and 5 Technical data
[}26].
High-perfor-
mance con-
denser
Only use the high-performance condenser at the pneumatic
system outlet; there is a risk of implosion if installed on the
pneumatic system inlet.
Ensure the correct assignment of the gas and coolant hose
connections on the high-performance condenser. Inlets and
outlets of gas connections must not be interchanged.
Accessories Laboratory equipment or additional components connected to
a vacuum system must be designed for the pneumatic data of
the vacuum system (see 5 Technical data [}26]).
3.3 Working in a safety conscious manner
Observe the regulations on accident prevention and safety
during all work on the vacuum systems and during operation.
Avoid contact with the pump heads and housing parts, as the
pump heats up during operation.
Make sure that the vacuum system is disconnected from the
mains and de-energized when working on the vacuum sys-
tem.
When connecting the vacuum systems to the electrical power,
observe the corresponding safety rules.
Do not expose any body parts to the vacuum.
Ensure that no hazards arise from gas flowing when gas con-
nections are open, from the effects of noise or from hot, corro-
sive, dangerous and environmentally hazardous gases.

Vacuum system SC820G / SC840G Safety
Translation of Originial Operating Instruction, KNF 339416-339418 06/22 13
Avoid the release of hazardous, toxic, explosive, corrosive,
harmful or environmentally hazardous gases or vapors, e.g.
by using suitable laboratory equipment with fume hood and
ventilation control.
3.4 Operating conditions
Only use the vacuum systems in perfect technical condition,
for their intended purpose, safely and aware of the dangers
and in observation of the operating instructions.
Only vacuum systems that are fully assembled and in the
condition as delivered are allowed to be operated.
Make sure that the installation location is dry and that the vac-
uum system is protected against rain, spray water, splash wa-
ter and dripping water as well as from other contamination.
Regularly check the tightness of the connections between the
piping of the application and the vacuum system (or the pneu-
matic connection of the vacuum system). Leaky connections
carry the risk of releasing dangerous gases and vapors from
the pump system.
3.5 Media
Requirements of
pumped media
Before pumping a medium, check whether the medium can
be pumped safely in the specific use case.
Take note of any change in the state of matter (condensation,
crystallization).
Before using a medium, check the compatibility of the media-
contacting components (see 5 Technical data [}26]) with the
medium.
Only transfer gases that remain stable under the pressures
and temperatures that arise in the vacuum system.
Handling of
hazardous
media
Upon breakage of the diaphragm and/or leaks, the transferred
medium mixes with the air in the surroundings and/or in the
vacuum system housing. Make sure that a dangerous situa-
tion cannot arise as a result.
When pumping hazardous media, follow the safety regula-
tions that apply for working with these media.
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Safety Vacuum system SC820G / SC840G
14 Translation of Originial Operating Instruction, KNF 339416-339418 06/22
Working with
combustible me-
dia and explo-
sive atmosphere
Note that the vacuum system is only suitable for pumping ex-
plosive atmosphere according to its designation (see type
plate) and must not be set up in potentially explosive atmos-
pheres.
Make certain that the temperature of the medium is always
sufficiently below the ignition temperature of the medium so
as to prevent ignition or explosion. This also applies for ab-
normal operating situations.
At the same time, note that the temperature of the medium
rises as the pump compresses the medium.
Therefore, make certain that the temperature of the medium
also remains sufficiently below the ignition temperature of the
medium even when it is compressed to the maximum permis-
sible operating pressure of the vacuum system. The maxi-
mum permissible operating pressure of the vacuum system is
given in Chapter 5 Technical data [}26].
Make certain that the permissible ambient temperature (see 5
Technical data [}26]) is not exceeded.
If applicable, consider external energy sources (e.g., radiation
sources) which may heat the medium further.
In case of doubt, contact KNF Customer Service.
3.6 Use
3.6.1 Proper use
The vacuum systems are intended exclusively for delivering
gases and vapors.
The vacuum systems are intended exclusively for operation in
indoor areas and in non-explosive atmospheres. The Ex-des-
ignation is valid only for the transfer chamber (media-contact-
ing area).
Vacuum systems with ATEX designation do not always
conform to the regulations governing potentially explo-
sive atmospheres in countries outside the EU.

Vacuum system SC820G / SC840G Safety
Translation of Originial Operating Instruction, KNF 339416-339418 06/22 15
3.6.2 Foreseeable misuse
The vacuum systems are not allowed to be operated in explo-
sive atmospheres.
The pumps are not suitable for use below ground.
The vacuum systems are not suitable for transferring the fol-
lowing:
§Dusts
§Liquids
§Aerosols
§Biological and microbiological substances
§Fuels
§Explosives
§Fibers
§Oxidizing agents
§Foodstuffs.
The vacuum systems must not be used for simultaneous gen-
eration of vacuum and positive pressure.
Do not apply positive pressure to the suction side of the vac-
uum system.
The vacuum system must not be used if reactive explosive, or
otherwise dangerous mixtures can occur (e.g. with the
medium) when the gas ballast valve of the pump is open.
3.7 Directives and standards
EU/EC
Directives /
Standards
The vacuum systems conform to the directives/Ordinances:
§2011/65/EU (RoHS)
§2014/30/EU (EMC)
§2006/42/EC (MD)
The part of the pump that comes into contact with the media
complies with Directive 2014/34/EU (ATEX).
§UK Regulation S.I. 2008/1597 Supply of Machinery
(Safety)
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Safety Vacuum system SC820G / SC840G
16 Translation of Originial Operating Instruction, KNF 339416-339418 06/22
§UK Regulation S.I. 2016/1091 Electromagnetic Compati-
bility
§UK Regulation S.I. 2012/3032 Restriction of the Use of
Certain Hazardous Substances in Electrical and Elec-
tronic Equipment
The following harmonized/listed standards are met:
§EN 61010-1
§EN 61326-1
The part of the pumps that comes into contact with the media
satisfies the following harmonized standards:
§EN ISO 80079-36
§EN ISO 80079-37
§EN 1127-1
Per IEC 664, the pumps comply with:
§Overvoltage category II
§Degree of soiling 2
3.8 Customer service and repair
Customer ser-
vice and repairs
The vacuum systems are maintenance-free. However, KNF
recommends periodic inspection of the vacuum system for
obvious changes in noise or vibration.
Only have repairs to the vacuum systems performed by quali-
fied KNF personnel.
Housings with electrically live components may only be
opened by specialist personnel.
Use only genuine spare parts from KNF when performing
servicing work.
3.9 Disposal
Environmental
protection
WEEE
Store the vacuum system and all replacement parts in accor-
dance with the environmental protection regulations. Take
care to ensure compliance with the national and international
regulations. This applies in particular to parts that are contam-
inated with toxic substances.

Vacuum system SC820G / SC840G Safety
Translation of Originial Operating Instruction, KNF 339416-339418 06/22 17
If you no longer need your packaging materials (e.g. for return
shipment or other transport of the vacuum system), dispose of
them in an environmentally friendly manner.
This product is marked in compliance with the EU Directive on
Waste Electrical and Electronic Equipment (WEEE), which
regulates disposal of such equipment. Old devices must not
be disposed of with household waste. Proper disposal and re-
cycling help to protect natural resources and the environment.
The end user is responsible for disposing of old devices in ac-
cordance with national and international regulations. Alterna-
tively, KNF will also accept returns of KNF products (old de-
vices) for a fee (see Chapter 14 Returns [}98]).
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Explosion protection Vacuum system SC820G / SC840G
18 Translation of Originial Operating Instruction, KNF 339416-339418 06/22
4 Explosion protection
4.1 Using for transferring explosive
atmospheres
Always use vacuum systems of the corresponding device cat-
egory and temperature class to pump explosive atmospheres.
These vacuum systems have the following EU explosion pro-
tection designations:
Designation Description
Symbol for explosion-protected devices
II Device group (see 4.3.1 Device groups [}20])
3/-G Device category (see 4.3.2 Device categories for gas [}21])
Ex Symbol indicates that the device satisfies one or more ignition
protection types.
h Symbol for ignition protection type (see 4.3.5 Ignition protec-
tion type [}23])
IIB + H2 Explosion groups (see 4.3.3 Explosion groups [}22])
T3 Temperature class (see 4.3.4 Temperature classes [}23])
Gc Equipment protection level (See Chapter 4.3.6 Equipment pro-
tection level for gas [}24])
Special operating conditions (See Chapter Special operating
conditions)
Internal atmos-
phere only
Special conditions (see 4.3.7 Special operating conditions
[}24])
Tab.5: Explosion protection designation
An ignition hazard evaluation according to the standards DIN
EN ISO 80079-36 and DIN EN ISO 80079-37 was carried out
for the vacuum systems.
The explosion protection designation can also be found at the
following location:
§Vacuum system type plate

Vacuum system SC820G / SC840G Explosion protection
Translation of Originial Operating Instruction, KNF 339416-339418 06/22 19
4.2 Information on the Ex-designation
This KNF vacuum system is marked with the following device
designation according to the latest explosion protection direc-
tive. The designation is only valid for the transfer section (me-
dia-contacting region) of the vacuum system:
Fig.2: EX-designation of the vacuum system
Category "3/-G" vacuum systems are designed for the trans-
fer of gases, vapors or mists with which it is unlikely that an
explosive atmosphere will form. However, if this does happen,
in all probability it will happen only rarely and for a short pe-
riod of time.
The devices are to be arranged so that they cannot be me-
chanically damaged from the outside.
It is forbidden to make any changes to the vacuum systems.
After a wearing part is replaced, the original function of the
vacuum system must be tested by verifying that the specified
ultimate vacuum is reached (see Operating instructions,
Chapter 11 Servicing [}73]).
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Explosion protection Vacuum system SC820G / SC840G
20 Translation of Originial Operating Instruction, KNF 339416-339418 06/22
4.3 Explanations of the explosion protection
designation
4.3.1 Device groups
Device group I Device group I applies for devices that are used in under-
ground plants of mines as well as their underground systems
that could be endangered by methane and/or combustible
dusts.
Device group II Device group II applies for devices that are used in other ar-
eas that could be endangered by an explosive atmosphere.