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MD 12C VARIO select
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vacuubrand MV 10C VARIO select, MD 12C VARIO select, ME 16C VARIO select Instructions For Use Manual

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Page 1
Technology for Vacuum Systems
Chemistry diaphragm pump
MV 10C VARIO select MD 12C VARIO select ME 16C VARIO select
Instructions for use
Original instructions EN
OI no.: 20901115
Page 2
Imprint
Original instructions Keep for further use!
This manual is only to be used and distributed in its complete and original form. It is strictly the user's responsibility to carefully check the validity of this manual with respect to the product.
Manufacturer:
VACUUBRAND GMBH + CO KG Alfred‑Zippe‑Str. 4 97877 Wertheim GERMANY
Phone:
Head ofce +49 9342 808‑0 Sales +49 9342 808‑5550 Service +49 9342 808‑5660
Fax: +49 9342 808‑5555
Email: [email protected] Web: www.vacuubrand.com
Thank you for purchasing this product from VACUUBRAND GMBH + CO KG. You have chosen a modern and technically high quality product.
Page 3
Contents
Table of conTenTs
1 Introduction 5
1.1 User information .................................5
1.2 About this document..............................6
1.2.1 Manual structure .............................6
1.2.2 Display conventions ..........................7
1.2.3 Symbols and icons ...........................8
1.2.4 Handling instructions (action steps)...............9
1.2.5 Abbreviations ...............................9
1.2.6 Term denitions.............................10
2 Safety information 11
2.1 Us ag e ........................................11
2.1.1 In tende d u se ...............................11
2.1.2 Improper use...............................12
2.1.3 Foreseeable misuse............................ 12
2.2 Obligations ....................................13
2.2.1 Operator obligations .........................13
2.2.2 Personnel obligations ........................13
2.3 Target group description ..........................14
2.4 General safety information ........................15
2.4.1 Protective clothing...........................15
2.4.2 Safety precautions ..........................15
2.4.3 Laboratory and working materials...............16
2.4.4 Eliminate sources of danger ...................17
2.5 Motor protection ................................20
2.6 ATEX equipment category ........................21
2.7 Disposal ......................................22
3 Product description 23
3.1 Schematic design ...............................23
3.2 Chemistry diaphragm pump series..................24
3.3 Example ......................................25
4 Installation and connection 27
4.1 Transport .....................................27
4.2 Installation ....................................28
4.3 Controller base.................................30
4.4 Connection ....................................31
4.4.1 Vacuum connection (IN) ......................31
4.4.2 Outlet connection (EX) .......................33
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Contents
4.4.3 Venting connection (option)....................34
4.4.4 Gas ballast (GB) ............................35
4.4.5 Electrical connection.........................36
5 Commissioning (operation) 39
5.1 Switch on .....................................39
5.2 Operation ....................................39
5.2.1 Operation ( see description of controller)........41
5.2.2 Operation with gas ballast.....................42
5.3 Shutdown (switch off) ............................43
5.4 Storage.......................................44
6 Troubleshooting 45
6.1 Technical support ...............................45
6.2 Error – Cause – Remedy .........................45
7 Cleaning and maintenance 49
7.1 Information on service work .......................50
7.2 Cleaning ......................................52
7.2.1 Diaphragm pump ...........................52
7.2.2 Clean or replace molded PTFE hoses ...........52
7.2.3 Clean or replace the controller .................52
7.3 Diaphragm pump maintenance ....................53
7.3.1 Maintenance items ..........................53
7.3.2 Preparation ................................54
7.3.3 Suction/pressure distributor maintenance .........56
7.3.4 Change the diaphragms and valves .............59
8 Appendix 75
8.1 Technical information ............................75
8.1.1 Techn ic al da ta ..............................75
8.1.2 Wetted materials ............................78
8.1.3 Rating plate................................79
8.2 Ordering information.............................80
8.3 Service .......................................82
8.4 Index.........................................83
8.5 EU Declaration of Conformity .....................85
Page 5
Introduction

1 Introduction

This manual is part of your product. The manual applies to all versions of the pump and is intended in particular for laboratory staff.

1.1 User information

Safety
Instructions for use
and safety
General
information
 Read this manual thoroughly and completely before using the
product.
 Keep this manual in an easily accessible location.
 Correct use of the product is essential for safe operation. Comply
with all safety information provided!
 In addition to this manual, adhere to the accident prevention
regulations and industrial safety regulations applicable in the country of use.
General
 For easier readability, the general term diaphragm pump
is used as an equivalent to and instead of the product name
Mx 1xC VARIO select chemistry diaphragm pump.
 If passing the product on to a third party, also give them this
manual.
Copyright © and
copyright law
 The illustrations in this manual are only intended to facilitate
comprehension.
We reserve the right to make technical changes in the course of
continuous product improvement.
Copyright
The content of this manual is protected by copyright. Only copies for internal use are allowed, e. g., for professional training.
© VACUUBRAND GMBH + CO KG
520901115_EN_Mx10+12+16C_VARIO_sel_V1.0_130618
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Introduction
Contact
Contact us
Modular instructions
for use
 If your manual is incomplete, you can request a replace‑
ment. Alternatively, you can use our download portal:
www.vacuubrand.com
 You are welcome to contact us at any time in writing or by tele‑
phone if you would like more information, have questions about our products or wish to share feedback with us.
 When contacting our Service Department, please have the
serial number and product type at hand see Rating plate on the product.

1.2 About this document

1.2.1 Manual structure

The manual has a modular structure with separate instruction modules for the diaphragm pump, vacuum controller, and any ac‑ cessories.
Pump series and
instructions for use
Instruction modules
1
1
Safety information for vacuum equipment
2
Description: Vacuum controller – control and operation
3
Description: Vacuum pump – connection, operation, mainte‑ nance, mechanics
4
Optional description: Accessories
2
3
4
Page 7

1.2.2 Display conventions

Warning levels
Introduction
Display conventions
DANGER
Indicates an imminent hazardous situation.
Disregarding the situation could result in extremely serious injury or death.
Take appropriate action to avoid dangerous situa‑
tions!
WARNING
Warns of a potentially hazardous situation.
Disregarding the situation could result in serious injury or death.
Take appropriate action to avoid dangerous situa‑
tions!
CAUTION
Indicates a potentially hazardous situation.
Disregarding the situation could result in minor injury or damage to property.
IMPORTANT!
Take appropriate action to avoid dangerous situa‑
tions!
Note
Indicates a potentially harmful situation.
Disregarding the situation could result in damage to property.
Additional notes
Information or specic recommendation which must be
observed.
Important information for trouble‑free operation of your
product.
Helpful tips + tricksAdditional information
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Introduction

1.2.3 Symbols and icons

This manual uses symbols and icons. Safety symbols indicate
specic risks associated with handling the product. Symbols and icons are designed to help you identify risks more easily.
Safety symbols
Explanation of
safety symbols
Hazardous substance – hazards to human health.
General warning symbol.
Danger: electricity. Warning: hot surface.
General mandatory sign.
Wear chemical‑resistant
protective gloves.
Read the instructions for repair.
General prohibition sign.
Warning:
risk of explosion.
Disconnect power plug.
Wear protective goggles.
Additional symbols and icons
Additional
symbols
Positive example – Do this! Result – OK
Refers to content in this manual.
Installation at
temperatures < 40 °C.
Flow arrow Inlet – vacuum connection
Negative example –
Don't do this!
Refers to content in other supplementary docu‑ ments.
Ensure sufcient air circu‑
lation.
Flow arrow Outlet – exhaust gas
Page 9
Introduction

1.2.4 Handling instructions (action steps)

Display of operating
steps
Abbreviations
Instructions (single step)
 Perform the step described.
5 Result of action
Instructions (multiple steps)
1. First step
2. Next step
5 Result of action
Perform the steps in the order described.

1.2.5 Abbreviations

Fig. Figure abs. Absolute ATM Atmospheric pressure (bar graph, program)
(di)
d
i
DN Nominal diameter ECTFE Ethylene chlorotriuoroethylene ETFE Ethylene tetrauoroethylene EX* Outlet (exhaust, exit), exhaust gas connection
`
FFKM Peruoroelastomer FKM Fluoroelastomer GB Gas ballast IN* Inlet, vacuum connection KF Small ange max. Maximum value min. Minimum value PP Polypropylene
Interior diameter
ATEX equipment labeling
PPS Polyphenylene sulde PTFE Polytetrauoroethylene RMA no. Return Merchandise Authorization number SW Wrench size (tool) resp. Responsible e. g. For example
* Labeling on the vacuum pump or component
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Introduction
1.2.6 Term denitions
Product‑specic
terms
Mx 1xC VARIO select
VACUU·BUS
VACUU·BUS
®
®
address
VACUU·BUS
®
client
VACUU·BUS
®
connector VACUU·BUS
®
conguration
VACUU·LAN
®
VACUU·SELECT
VACUU·SELECT Sensor
Vacuum pump with variable speed mo‑ tor for precise vacuum control, includ‑
®
ing VACUU·SELECT
controller and
VACUU·SELECT® Sensor.
Bus system from VACUUBRAND for com‑ munication between peripheral devices with
VACUU·BUS®‑enabled gauges and controllers.
The maximum admissible cable length is 30 m. Address which enables the VACUU·BUS® client
to be unambiguously assigned within the bus system, e. g., for connecting multiple sensors with the same measuring range.
Peripheral device or component with
VACUU·BUS® port which is integrated in the
bus system, e. g., sensors, valves, level indica‑ tors, etc.
4‑pin round connector for the bus system from
VACUUBRAND. Assigning a different VACUU·BUS® address to
a VACUU·BUS® component using a gauge or controller.
Local area vacuum network.
®
Vacuum controller, controller with touchscreen; consisting of operating panel and vacuum sen‑ sor.
®
External vacuum sensor
 for VACUU·SELECT
®
or
 separately as an independent vacuum sen‑
sor.
VARIO
®
drive Speed control for vacuum pump; the motor
runs only as fast as necessary to meet de‑ mand.
Page 11
Safety information

2 Safety information

The information in this chapter must be observed by everyone
who works with the product described here.
The safety information is valid for the entire life cycle of the prod‑ uct.

2.1 Usage

Only use the product if it is in perfect working condition.

2.1.1 Intended use

Intended use
A chemistry diaphragm pump from the Mx 1xC VARIO select product series is a vacuum system consisting of a variable speed vacuum pump, controller, and sensor, for the creation and control of rough vacuum in designated systems, e. g., evacuating distillation
equipment, as a vacuum dryer or in systems with VACUU·LAN local area vacuum network etc.
The vacuum system may only be used indoors in a non‑explosive
atmosphere.
Intended use also includes:
observing the information in the document Safety information
for vacuum equipment,
 observing the manual,
 observing the manual of connected components,
 observing the inspection and maintenance intervals and having
maintenance performed by appropriately qualied personnel.
 using only approved accessories or spare parts.
Any other use is considered improper use.
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Safety information

2.1.2 Improper use

Improper use
Incorrect use or any application which does not correspond to the technical data may result in injury or damage to property.
Improper use includes:
 using the product contrary to its intended use,
using the product in non‑commercial environments, unless the
necessary protective measures and precautions have been taken
by the company,
 operation under inadmissible environmental and operating condi‑
tions,
 operation despite obvious faults or defective safety devices,
 unauthorized extensions or conversions, in particular when these
impair safety,
 usage despite incomplete assembly,
operation with sharp‑edged objects,
Foreseeable misuse
pulling plug‑in connections on the cable out of the socket,
aspirating, conveying, or compressing solids or uids.

2.1.3 Foreseeable misuse

In addition to improper use, there are types of use which are pro‑ hibited when handling the pump:
Prohibited types of use include, in particular:
 use on humans or animals,
 installation and operation in potentially explosive atmospheres,
 use in mines or underground,
 using the product to generate pressure,
 fully exposing vacuum equipment to the vacuum,
 immersing vacuum equipment in liquids, or exposing it to water
spray or steam jets,
Page 13
Safety information
Foreseeable misuse
IMPORTANT!
Operator obligations
 pumping oxidizing and pyrophoric substances, liquids or solids,
 pumping hot, unstable, or explosive media,
 pumping substances which may react explosively under impact
and/or elevated temperature without an air supply.
No foreign bodies, hot gases or ames from the appli‑ cation must be allowed to enter the equipment.

2.2 Obligations

2.2.1 Operator obligations

The owner denes the responsibilities and ensures that only trained personnel or specialists work on the vacuum system. This
applies in particular to connection, assembly and maintenance
work, and troubleshooting.
Personnel
obligations
Users in the areas of competence in the
Responsibility matrix
must possess the relevant qualications for the activities listed. In particular work on electrical equipment must be performed only by qualied electricians.

2.2.2 Personnel obligations

In the case of activities which require protective clothing, personal
protective equipment as specied by the operator is to be worn.
If the vacuum system is not in proper working order, it must be prevented from being accidentally switched back on.
Always be conscious of safety and work in a safe manner.
 Observe instructions issued by the operator, and national reg‑
ulations on accident prevention and industrial safety.
The way individuals act can help to prevent accidents at
work.
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Safety information

2.3 Target group description

Target groups
Qualication
description
Responsibility matrix
The manual must be read and observed by every person who is
tasked with the activities described below.
Personnel qualication
Operator Laboratory staff, such as chemists, laboratory techni‑
cians
Specialist Person with professional qualication in mechanics,
electrical equipment or laboratory devices
Responsible spe‑ cialist
Similar to a specialist, with additional specialist re‑ sponsibility, or responsibility for a department or division
Responsibility matrix
Activity Operator Specialist
Installation x x x
Responsible
specialist
Commissioning x x x Network integration x
Operation x x x Error report x x x Remedy (x) x x Maintenance x x Repair
1
x x
Repair order x Cleaning, simple x x x Shutdown x x x Decontamination
1 See also our website:
VACUUBRAND > Support > Instructions for repair
2 Alternatively,arrangefordecontaminationbyaqualiedserviceprovider
2
x x
Page 15
Safety information

2.4 General safety information

Quality standards
and safety
Protective clothing
IMPORTANT!
Products from VACUUBRAND GMBH + CO KG are subject to stringent quality testing with regard to safety and operation. Each product undergoes a comprehensive test program prior to delivery.

2.4.1 Protective clothing

No special protective clothing is required to operate the vacuum
pump. Observe instructions issued by the operator for your work‑
place.
During cleaning, maintenance and repair work, we recommend wearing chemical‑resistant protective gloves, protective clothing
and protective goggles.
 When handling chemicals, wear your personal protective
equipment.
Safety precautions
IMPORTANT!

2.4.2 Safety precautions

 Use your vacuum equipment only if you have understood its
function and this manual.
Replace defective parts immediately, e. g., a broken power
cable, faulty hoses or faulty asks.
 Use only original accessories and components which are
designed for the vacuum technology, such as a vacuum hose, separator, vacuum valve, etc.
 When handling contaminated parts, follow the relevant regula‑
tions and protective measures; this also applies to equipment sent in for repair.
Prior to returning any product to our Service Department for repair, contamination from hazardous substances needs to be excluded.
Fill out the Health and Safety Clearance form in full and con‑
rm with your signature.
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Safety information

2.4.3 Laboratory and working materials

DANGER
Hazardous substances could be discharged at the outlet.
During aspiration, hazardous, toxic substances at the outlet can get into the ambient air.
Observe the relevant safety regulations for safe han‑
dling of hazardous substances.
Please note that residual process media may pose a
danger to people and the environment.
Mount and use suitable separators, lters or fume
hood devices.
Pumping different
substances
Hazards due to different substances
Pumping different substances or media can cause the substances to react with one another.
Working materials which get into the vacuum pump with the gas ow can damage the vacuum pump. Hazardous substances can
be deposited in the vacuum pump.
Possible protective measures, depending on the application:
 Purge the vacuum pump with inert gas or air before changing
the medium to be pumped.
 Use inert gas to dilute critical mixtures.
 Prevent the release of hazardous, toxic, explosive, corrosive
uids, gases or vapors or those that are harmful to health or
the environment, for example, through suitable laboratory facil‑ ities with a fume hood and ventilation control.
 Protect the inside of the vacuum pump from deposits or mois‑
ture, e. g, through the provision of a gas ballast.
Be aware of interactions and possible chemical reactions of
the pumped media.
Check the compatibility of the pumped substances with the
wetted materials of the vacuum pump.
 Contact us if you have concerns about using your vacuum
pump with certain working materials or media.
Page 17
Safety information

2.4.4 Eliminate sources of danger

Take mechanical stability into account
Note
mechanical load
capacity
The high compression ratio of the pump may result in a higher pressure at the outlet than the mechanical stability of the system allows.
Always ensure that the outlet line is clear and non‑pressur‑
ized. The outlet must not be blocked to ensure that gases can
exit freely.
Prevent uncontrolled overpressure, e. g, due to a locked or
blocked piping system, condensate or clogged outlet line.
 At the gas connections, the connections for the inlet
outlet
EX must not be mixed up.
IN and
Be aware of the max. pressures at the inlet and outlet of the
pump as well as the max. admissible differential pressure between the inlet and outlet, according to
8.1.1 Technical data
on page 75.
 The system to be evacuated as well as all hose connections
must be mechanically stable.
Prevent backup in
the outlet line
Prevent condensate return
Condensate can damage the pump head. Condensate must not
ow back into the outlet
EX or pump head through the hose line.
Liquid must not accumulate inside the exhaust gas hose.
Avoid condensate return by using a separator (accessory).
Condensate must not enter the inside of the housing via the hose lines.
 Preferably route the exhaust gas hose with a fall from the out‑
let, i.e., running downward so that no backup forms.
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Page 18
Safety information
Prevent incorrect
measurements
Observe vacuum
pump design
Incorrect measurements due to a blocked vacuum line, e. g., con‑ densate in the vacuum line, can distort the measurements taken
by the vacuum sensor.
Prevent overpressure > 1060 mbar (795 Torr) inside the suc‑
tion line.
Prevent foreign bodies inside the pump
Particles, liquids and dust must not get inside the vacuum pump.
 Do not pump any substances which could form deposits
inside the vacuum pump.
Install suitable separators and/or lters upstream of the inlet.
Suitable lters are chemically resistant, clog‑proof and have a reliable ow rate, for example.
 Replace porous vacuum hoses without delay.
Hazards when
venting
Possible
residual energy
Hazards during venting
Depending on the application, explosive mixtures can form or oth‑ er hazardous situations can arise in systems.
Hazards due to residual energy
After the vacuum pump has been switched off and disconnected from the power supply, there may still be dangers due to residual energy:
■ Thermal energy: Motor waste heat, hot surfaces, compression
heat.
 Allow the vacuum pump to cool down.
■ Electrical energy: The capacitors on the electronic assembly
have a discharge time of up to 3 minutes.
 Wait until the capacitors have discharged.
Page 19
Safety information
Risk of burns due to hot surfaces or overheating
Surface tempera‑
tures
Overheating
The surface of the vacuum pump can reach operating tempera‑ tures > 70 °C, in particular when pumping heated media.
 Avoid direct contact with the surface.
 Use protection against accidental contact if the surface tem‑
perature is regularly elevated.
 Allow the vacuum pump to cool down before performing main‑
tenance work.
The vacuum pump can be damaged due to overheating. Possi‑ ble causes include insufcient air supply to the fan and failure to
maintain minimum distances.
 When installing the device, ensure that there is a minimum
distance of 5 cm between the fan and adjacent parts (such as the housing, walls, etc.).
Always ensure a sufcient air supply; if applicable, provide
external forced ventilation.
 Place the device on a stable surface; a soft surface such as
foam rubber as a sound absorber can impair and block the air
supply.
 Clean polluted ventilation slots.
 Remove covers from the device before operating it.
 Avoid excessive heat input due to hot process gases.
 Observe the maximum admissible media temperature
see chapter:
8.1.1 Technical data on page 75.
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Page 20
Safety information
Keep signs legible
Labels and signs
Overheating
protection, blockage
protection
Procedure for
switching vacuum
pump back on
Kee p a ny si g n s af  xe d t o t h e dev i c e i n an ea s i ly rea d a ble c o n d itio n :
 Connection labels
 Warning and information signs
 Motor data and rating plates

2.5 Motor protection

The pump motor has a temperature sensor on the circuit board as overload protection. In the event of excessive temperature or if the
motor is blocked, the vacuum pump switches off.
If the vacuum pump is switched off due to these safe‑ ty precautions, the error must be cleared manually:
Unplug vacuum pump from power supply ‑> eliminate cause of error ‑> switch vacuum pump back on.
Page 21
Safety information

2.6 ATEX equipment category

Installation and potentially explosive atmospheres
The installation and operation in areas where potentially ex‑ plosive atmospheres can develop to a hazardous degree is not permitted.
ATEX approval only applies to the internal, wetted parts of the of the device, not to its surroundings.
ATEX equipment labeling
ATEX
equipment category
ATEX
equipment category
and
peripheral devices
Prevent
ignition sources
Vacuum equipment labeled with
has ATEX approval in line
`
with the ATEX marking on the rating plate.
Only use the product if it is in perfect working condition.  The devices are designed for a low level of mechanical
stress and must be installed in such a way that they cannot sustain mechanical damage from the outside.
The ATEX equipment category of the product is dependent on the connected components and peripheral devices. Components and peripheral devices need to have the same or higher ATEX approval.
The use of venting valves is only permitted if this would not nor‑ mally, or only rarely, cause explosive mixtures within the device, or do so only for a short time.
 If necessary vent with inert gas.
Information on the ATEX equipment category is also available on our website at: www.vacuubrand.com/.../Information‑ATEX
2120901115_EN_Mx10+12+16C_VARIO_sel_V1.0_130618
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Safety information

2.7 Disposal

Note
Risk of environmental damage due to incorrect disposal of the product.
Do not dispose of the product with household waste!
Electronic components are subject to hazardous waste treat‑ ment and must only be disposed of by certied specialists.
Observe the national regulations for safe disposal and envi‑
ronmental protection.
Detailed information on the respective regulations can be
obtained from your local administrative authority.
Page 23
Product description

3 Product description

The chemistry diaphragm pumps described essentially consist of a diaphragm pump with VARIO® drive, a VACUU·SELECT®
®
vacuum controller, and a VACUU·SELECT

3.1 Schematic design

Sensor.
Side and front view
Meaning
21
9
1
VACUU·SELECT® Sensor, to be mounted externally on suction
10
11
12
7 86543
13
line
2
Chemistry diaphragm pump
3
Vacuum controller ON/OFF button
4
VACUU·SELECT® operating panel
5
VACUU·SELECT® VACUU·BUS cable (power supply + control
cable)
6
Gas ballast valve
7
Vacuum connection – inlet IN
8
Handles (2x)
9
Outlet connection – outlet EX
10
Side panel, cover
11
Power connection, ON/OFF button (rocker switch)
12
Rating plate
13
Housing section with handle, front
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Page 24
Product description

3.2 Chemistry diaphragm pump series

Overview of chemistry diaphragm pumps
Mx 1xC VARIO
select chemistry
diaphragm pumps
Chemistry diaphragm pump Pump heads Stages
ME 16C VARIO select 8 MD 12C VARIO select 8 3 MV 10C VARIO select 8 4
1
Page 25

3.3 Example

Local area vacuum network
Product description
Example
Local area vacuum
network
1
2
3
4
5
6
Meaning
1
Example: VACUU·LAN®, local area vacuum network with three
valve modules
2
Lab furniture
3
Outlet hose (diverted into a fume hood)
4
Vacuum tubing
5
VACUU·SELECT operating panel + VACUU·SELECT Sensor
6
MD 12C VARIO select diaphragm pump (with accessories: separator at inlet and vapor condenser at outlet)
2520901115_EN_Mx10+12+16C_VARIO_sel_V1.0_130618
Page 26
Product description
Page 27
Installation and connection

4 Installation and connection

4.1 Transport

Products from VACUUBRAND are packed in sturdy, recyclable packaging.
The original packaging is accurately matched to your
product for safe transport.
If possible, please keep the original packaging, e. g., for
returning the product for repair.
Goods receipt
Example
Diaphragm pump in
original packaging
with enclosed
packages
Check the shipment for transport damage and completeness.
 Immediately report any transport damage in writing to the sup‑
plier.
Unpacking
b
a
c
(a) = diaphragm pump (shown here with vapor condenser accessory) (b) = manual, cable, and any accessories (c) = controller, vacuum sensor, cable
 Remove all enclosed packages from their original packaging
and unpack them.
 Compare the scope of delivery with the delivery note.
2720901115_EN_Mx10+12+16C_VARIO_sel_V1.0_130618
Page 28
Installation and connection
Example
Lift out the
diaphragm pump
(shown with
vapor condenser
accessory)

4.2 Installation

Please note that a dia‑
phragm pump can weigh approx. 25 kg. We recom‑
mend using a lifting aid.
Lift the unit out of the pack‑
aging by the side handles.
Check installation
conditions
Note
Condensate can damage the electronics.
A large temperature difference between the storage location and the installation location can cause condensation.
After goods receipt or storage, allow your vacuum device to
acclimatize for at least 3‑4 hours before initial use.
Check installation conditions
 The device is acclimatized.
 Ambient conditions have been observed and are within the limi‑
tation of use.
 The pump must have a stable and secure base without addi‑
tional mechanical contact apart from the pump feet.
Page 29
Installation and connection
Installing the vacuum pump
Place the vacuum pump on a stable, non‑vibrating, level sur‑
face.
Example
Sketch of
minimum distances
in lab furniture
IMPORTANT!
5 cm
5 cm
5 cm
 When installing in lab furniture, maintain a minimum distance
of 5 cm (2 in.) to adjacent objects or surfaces.
Prevent heat accumulation and ensure sufcient air circula‑
tion, especially in closed housings.
Observe limitation of
use
IMPORTANT!
Observe limitation of use
Limitation of use
Ambient temperature 10–40 °C 50‑104 °F Max. altitude 2000 m
above sea level
Minimum distance to adjacent parts
Relative humidity 30‑85 %, non‑condensing Protection class IP 40/IK 08 Prevent condensation or contamination from dust, liquids, or corrosive
gases.
5 cm 2 in
(US)
6562 ft above sea level
 Note the IP protection class. IP protection is only guaranteed
if the device is appropriately mounted and connected.
 For connection also note the rating plate data and chapter
8.1.1 Technical data on page 75.
2920901115_EN_Mx10+12+16C_VARIO_sel_V1.0_130618
Page 30
Installation and connection

4.3 Controller base

The base, controller, screw ttings and vacuum sensor are en‑ closed separately. Before installation, the base can be mounted
on the pump and the controller clipped into place.
Alternatively, the controller can be clipped into a recess in the lab
furniture or used as a freestanding unit (unfold the stand).
Mount the base
Mount the base to
the diaphragm pump
(option)
1
Top
1. Unscrew the screws; Phillips
screwdriver size 1.
3
3. Screw the base onto the dia‑
phragm pump.
2
2. Position the base on the dia‑
phragm pump.
4
4. Clip the controller into the
base.
5
5. Plug the VACUU·BUS cable
into the power connection on
the back of the controller.
6
6. Also plug in the VACUU·BUS
cables from peripheral devices.
Use Y adapters (accessories) if
there are not enough connec‑ tions.
Page 31
Installation and connection

4.4 Connection

The diaphragm pumps have a vacuum connection and an outlet connection. Connect your diaphragm pump as described in the examples below.

4.4.1 Vacuum connection (IN)

CAUTION
Flexible vacuum hoses can contract during evacuation.
Connected components that are not secured can cause
injury or damage due to jerky movement (shrinkage) of the exible vacuum hose. The vacuum hose can come loose.
IMPORTANT!
Secure the vacuum hose to the connections.Secure connected components.Take the maximum shrinkage into account when sizing
the exible vacuum hose.
Note
Foreign bodies in the suction line can damage the vacuum pump.
Prevent particles, liquids or contaminants from being aspi‑
rated or being able to ow back.
Use a sufciently stable vacuum hose that is designed for
the required vacuum range.
 Keep hose lines as short as possible.
 The connection between hose lines and the vacuum pump
must be gas‑tight.
Avoid kinks in the vacuum hose.
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Installation and connection
Connect the vacuum hose
Example
Vacuum connection
at the inlet
1 2
(a)
(b)
1. Take a vacuum hose (a) with a small ange connection
KF DN 25.
2. Attach the vacuum hose to pump inlet (b) with a centering
ring and clamping ring.
Observe the following points for optimum results:
Keep the vacuum line as short as you can with as large a
cross‑section as possible.
Alternatively, you can connect a vacuum hose via an
adapter to the hose nozzle DN 15 mm see accessories in
8.2 Ordering information on page 80.
Page 33
Installation and connection

4.4.2 Outlet connection (EX)

WARNING
Risk of bursting due to overpressure inside the outlet line.
Inadmissibly high pressure in the outlet line can cause the vacuum pump to burst or damage seals.
The outlet line (exhaust gas, gas outlet) must always
be clear and non‑pressurized.
Always route the exhaust gas hose with a fall or take
measures to prevent condensate from owing back
into the vacuum pump.
Observe the maximum admissible pressures and
pressure differences.
Example
Exhaust gas connec‑
tion at the outlet EX
Connect the exhaust gas hose
1 2
(c) (d)
1. Take a vacuum hose (c), di 15 mm diameter.
2. Slide the outlet hose onto hose nozzle (d) and route the hose
into a fume hood if necessary. If necessary x the outlet hose,
e. g., with a hose clip.
3320901115_EN_Mx10+12+16C_VARIO_sel_V1.0_130618
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Installation and connection

4.4.3 Venting connection (option)

DANGER
Risk of explosion by venting with air.
Depending on the application, venting can cause explo‑ sive mixtures to form or other hazardous situations to arise.
Never vent processes with air which could form an
explosive mixture.
In the case of ammable substances, use
only inert gas for venting, e. g., nitrogen
(max. 1.2 bar/900 Torr abs.).
VACUU·SELECT®
Sensor with venting
valve
(b)
(a)
The diaphragm pump and controller have
no direct ventilation
connection. You can connect different venting valves, e. g., the supplied VACUU·SELECT
®
Sensor with integral venting valve.
The ventilation connection (b) for a
VACUU·SELECT® Sensor is described
(b)
Vent with ambient air
below.
Alternatively you can use a larger valve, e. g., a VB M‑B (#20674217) for faster
venting.
1
For venting (b) with ambient air, nothing needs to be connected to the sensor (a).
Vent with inert gas – connect venting valve
1
Required connection material: Hose for hose nozzle, e. g., sili‑ cone tube 4/5 mm
Attach hose (c) to the connection of venting valve (b) and con‑
(a)
(b)
(c)
nect inert gas (max. 1.2 bar/900 Torr, abs.).
2
5 Venting valve with hose for venting with inert gas
1 Not applicable to sensors without an integrated venting valve. 2 Avoid overpressure.
.
Page 35
Example
Position of gas
ballast valve
Installation and connection

4.4.4 Gas ballast (GB)

Use of ambient air as gas ballast
(d)
If ambient air is to be used as gas ballast, nothing needs to be connected at the diaphragm pump; gas ballast valve (d). see also chapter 5.2.2 Operation with gas ballast on page 42
Prepare inert gas
connection (GB)
Use of inert gas as gas ballast – OPTION
Remove the black gas ballast cap and connect a gas ballast
adapter in its place.
Connection options and adapter for hose nozzle or small
ange are available on request.
3520901115_EN_Mx10+12+16C_VARIO_sel_V1.0_130618
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Installation and connection

4.4.5 Electrical connection

Pump electrical connection
Example
Electrical connection
for pump
1
2
(s)
(t)
1. Plug the connector (s) on the power cable into the power con‑
nection of the vacuum pump.
2. Plug power plug (t) into the power outlet.
5 Vacuum pump electrically connected.
IMPORTANT!
Diagrams of
standard power
connections with
grounding contact
Lay the power cable such that it cannot be damaged by
sharp edges, chemicals, or hot surfaces.
Power connections with country code
1
5
2
6 7
3
4
1 IL 5 US
2 UK 6 CEE
3 CN 7 CH
4 IND
The vacuum pump is delivered ready for use with the appropriate power plug.
Page 37
Installation and connection
IMPORTANT!
Use the power plug which ts your power supply.
Do not use multiple sockets connected in series as the
power connection.
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Installation and connection
Page 39
Commissioning (operation)

5 Commissioning (operation)

5.1 Switch on

Switch pump on
Switch pump on
1
(a)
1. Switch rocker switch (a) on – switch position I.
2. Press ON/OFF button (b) on the controller.
5 The start screen is displayed. 5 After approx. 30 seconds, the process screen with the
operating elements appears on the controller display.
2
(b)
Operation with
vacuum controller

5.2 Operation

Apart from the chapters Switch on and Switch off, this manual de‑ scribes the mechanical structure of the diaphragm pumps.
Operation of the installed vacuum controller and its functions are described in the separate VACUU·SELECT manual.
3920901115_EN_Mx10+12+16C_VARIO_sel_V1.0_130618
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Commissioning (operation)
Process screen
Vacuum controller
process screen
1
2
3
4
5
6
1
Status bar
2
Analogue pressure display – pressure curve
3
Digital pressure display – pressure value
(target value, actual value, pressure unit)
4
Process screen with context features
5
Screen navigation
6
Operating elements for control
Vacuum controller
operating elements
Operating elements
Button
Active Locked
*
*
Function
Start
 Start application – only available on the process
screen.
Stop
 Stop application – always possible.
VENT – vent the system (option)
Press button < 2 sec = vent briey; control con‑
tinues.
Press button > 2 sec = vent to atmospheric pres‑
sure; vacuum pump is stopped.
Press button during venting = venting is stopped.
Favorites
 View Favorites menu.
* Button is only displayed if venting valve is connected or activated.
Page 41
Start
Commissioning (operation)
5.2.1 Operation ( see description of controller)
Start the vacuum controller
Stop
Venting
Stop the vacuum controller
Venting
4120901115_EN_Mx10+12+16C_VARIO_sel_V1.0_130618
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Commissioning (operation)

5.2.2 Operation with gas ballast

Meaning
The provision of gas ballast (= addition of gas) ensures that vapors
do not condense inside the vacuum pump but are instead ejected
from the pump. This makes it possible to pump larger amounts of
condensable vapors, and also prolongs the service life. The ulti‑ mate vacuum with gas ballast is slightly higher.
Open/close the gas ballast valve
Example
Operate gas ballast
valve
ON
IMPORTANT!
OFF
Turn the black gas ballast cap in any direction to open or
close the gas ballast valve.
 Evacuate condensable vapors, e. g., water vapor, solvents,
etc. preferably only with the vacuum pump at operating tem‑ perature and with the gas ballast valve open.
 If necessary, connect inert gas as a gas ballast to prevent
the formation of explosive mixtures.
 Observe the admissible pressure at the gas ballast connec‑
tion, max. 1.2 bar/900 Torr abs.
If the gas volume in the vacuum pump is low, a gas ballast may be able to be eliminated in these cases.
Page 43
Commissioning (operation)

5.3 Shutdown (switch off)

Take the pump out of operation
Switch pump off
1. Stop the process and let the diaphragm pump run on for
about 30 minutes, with open gas ballast or open inlet.
5 Condensate and media residues will be ushed out of the
vacuum pump.
IMPORTANT!  Prevent deposits and rinse condensate out of
the pump.
2
(a)
2. Switch rocker switch (a) off – switch position O.
5 Pump switched off.
3. Disconnect the pump from the apparatus.
4. Check the pump for dirt and damage.
4320901115_EN_Mx10+12+16C_VARIO_sel_V1.0_130618
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Commissioning (operation)

5.4 Storage

Store the vacuum pump
1. Clean the vacuum pump if dirty.
2. Recommendation: Perform preventive maintenance before
storing the vacuum pump. This is especially important if it ran more than 15,000 operating hours.
3. Close the suction and outlet lines, e. g., with the transport
caps.
4. Package the vacuum pump such that it is protected from
dust; enclose desiccants if necessary.
5. Store the vacuum pump in a cool, dry location.
IMPORTANT!
If damaged parts are stored for operational reasons, these should
be clearly identied as not ready for use.
Page 45
Troubleshooting

6 Troubleshooting

6.1 Technical support

 To identify errors and potential remedies, please refer to the
troubleshooting table Error – Cause – Remedy.
Technical
support
Error – Cause –
Remedy
For technical assistance or errors for which you require additional support, please contact our Service Department
1
. or your local
distributor.
Only operate the product if it is in perfect working
condition.
Observe the recommended maintenance intervals to ensure
a fully functional system.
Send defective devices to our Service Department or your
local distributor for repair!

6.2 Error – Cause – Remedy

Error  Possible cause 3Remedy
Readings de‑ viate from the reference stan‑ dard
Sensor does not pass on measured val‑ ue
`Vacuum sensor dirty. `Moisture in the sen‑
sor.
`Sensor defective. `Sensor measures
incorrectly.
`No voltage applied. `VACUU·BUS plug‑in
connection or cables defective or not con‑ nected.
`3 Clean sensor mea‑
suring chamber.
`3 Allow sensor mea‑
suring chamber to dry, e. g., by pump‑ ing.
`3 Calibrate sen‑
sor with reference gauge.
`3 Replace defective
components.
`3 Check
VACUU·BUS plug‑
in connection and cables to the con‑ troller.
Personnel
Specialist
Operator
Sensor defective. `3 Replace defective
`
components.
1 -> Phone: +49 9342 808-5660, fax: +49 9342 808-5555, [email protected]
Specialist
4520901115_EN_Mx10+12+16C_VARIO_sel_V1.0_130618
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Troubleshooting
Error – Cause –
Remedy
Error  Possible cause 3Remedy
Venting valve does not oper‑ ate
Vacuum pump does not start
No or very little suction power
`No voltage applied. `VACUU·BUS plug‑in
connection or cables defective or not con‑ nected.
`Venting valve dirty. `Venting valve in sen‑
sor defective.
`Overpressure in the
outlet line.
`Condensation in the
vacuum pump.
`
Pump switched off.
`Power plug not cor‑
rectly plugged in or pulled out.
`VACUU·BUS plug‑in
connection or cables defective or not con‑ nected.
Motor overloaded.
` `Thermal protection
has been triggered.
`Leak in the suction
line or apparatus.
`3 Check
VACUU·BUS plug‑
in connection and cables to the con‑ troller.
`3 Clean venting
valve.
`3 Perform compo‑
nent detection in
VACUU·SELECT
– see: Main menu/ Administration/
VACUU·BUS.
`3 If necessary, use
another external venting valve.
`3 Open the outlet
line.
`3 Ensure clear pas‑
sage.
`3 Switch pump on
using rocker switch.
`3 Check power sup‑
ply and cable.
`3 Check
VACUU·BUS plug‑
in connection and cables to the con‑ troller.
`3 Allow the motor to
cool down.
`3 Clear error manu‑
ally: Unplug pump from the power supply Eliminate cause of error Switch pump
back on
`3 Check suction line
and apparatus for
leaks.
Personnel
Specialist
Operator
Operator
Specialist
Operator
Page 47
Troubleshooting
Error – Cause –
Remedy
Error Possible cause 3Remedy
`
Vacuum line too long
or cross‑section too
small.
Condensate inside
`
the vacuum pump.
No or very little suction power
`Deposits inside the
vacuum pump.
`
Diaphragms or valves defective.
High level of vapor
`
generated in the pro‑ cess.
Gas ballast open `3 Close the gas bal‑
`
`
Gas ballast cap
porous or no longer present.
No display ` Pump switched off.
`Power plug not cor‑
rectly plugged in or pulled out.
`VACUU·BUS plug‑in
connection or cables defective or not con‑ nected.
`Controller switched
off or defective.
Loud operating
noises
`No hose installed at
outlet.
`3 Use a shorter vac‑
uum line with a
larger cross‑sec‑
tion.
`3 Allow vacuum
pump to run for a few minutes with the suction nozzle open.
`3 Clean and check
pump heads.
`3 Replace dia‑
phragms and valves.
`3 Check process
parameter.
last
`3 Check gas ballast
cap.
`3 Replace defective
components.
`3 Switch pump on
using rocker switch.
`3 Switch on control‑
ler.
`3 Check power sup‑
ply and cable.
`3 Check
VACUU·BUS plug‑
in connection and cables to the con‑ troller.
`3 Replace defective
components.
`3 Check hose and
install it correctly.
Personnel
Resp. spe­cialist
Operator
Specialist
Specialist
Specialist
Operator
Operator
Operator
Operator
4720901115_EN_Mx10+12+16C_VARIO_sel_V1.0_130618
Page 48
Troubleshooting
Error  Possible cause 3Remedy
Loud operating
noises
`Ball bearing defec‑
tive.
`Outlet line open.
`3 Service the vacuum
pump and replace defective parts or send in the device.
`3 Check outlet line
connections.
`3 Connect the out‑
let line to an extrac‑ tion system or fume hood.
Personnel
Specialist
Page 49
Cleaning and maintenance

7 Cleaning and maintenance

WARNING
Danger due to electrical voltage.
Switch the device off before cleaning or maintenance
work.
Unplug the power plug from the socket.
Risk from contaminated parts.
Pumping hazardous media can result in hazardous substances adhering to internal parts of the pump.
Wear your personal protective equipment, e. g., pro‑
tective gloves, eye protection and, if necessary, re‑ spiratory protection.
Decontaminate the vacuum pump before opening it.
If necessary have decontamination carried out by an external service provider.
Take safety precautions according to your instruc‑
tions for handling hazardous substances.
Note
Damage possible if work is performed incorrectly.
Have maintenance work performed by a trained professional
or at least by a trained person.
Recommendation: Before carrying out maintenance for the
rst time, please read through all the instructions to get an overview of the required service work.
4920901115_EN_Mx10+12+16C_VARIO_sel_V1.0_130618
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Cleaning and maintenance

7.1 Information on service work

Recommended maintenance intervals
Example
Recommended aids
for cleaning and
maintenance
Maintenance intervals*
Replace diaphragms x Replace valves x
Replace O‑rings x
Clean or replace molded PTFE hose x Clean the vacuum pump x
* Recommended maintenance interval according to operating hours and under
normal operating conditions; depending on the environment and area of ap­plication, we advise performing cleaning and maintenance as needed.
If required 15,000 h
Recommended aids
Protective gloves
IMPORTANT!
 Always wear your personal protective equipment when per‑
forming activities which may bring you into contact with haz‑ ardous substances.
Page 51
Example
Cleaning and maintenance
Tools needed for maintenance
Tools
1
7
5
6
3
4
2
No. Tool Size
1
Service kit
Service kit MD 12C / MV 10C VARIO select #20696839
8
1x
or
Service kit ME 16C VARIO select #20696867
2
Diaphragm wrench #20636554 SW66
3
Flat nose pliers
To secure the hose clips
4
Flat‑head screwdriver
To open hose clips Size 1
5
Phillips screwdriver
Screw ttings, controller base Size 1
6
Torx screwdriver Loosen/secure clamping claws TX20*
7
Hex key
Screw ttings, side panels Size 5 Screw ttings, head cover Size 5 Screw ttings, housing sections with handle Size 4 Loosen/secure side panel retaining plates Size 4 Screw tting, outlet holder Size 3
8
Torque wrench, adjustable 2–10 Nm
2x
* In the example here with bit support
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Cleaning and maintenance

7.2 Cleaning

IMPORTANT!
This chapter does not contain descriptions for decontamina‑ tion of the product. This chapter describes simple measures for cleaning and care.
Before cleaning, switch off the diaphragm pump.

7.2.1 Diaphragm pump

Clean the surfaces
Clean dirty surfaces with a clean, slightly damp cloth. We recom‑ mend using water or mild soapy water to moisten the cloth.

7.2.2 Clean or replace molded PTFE hoses

Maintenance provides the opportunity to check the components
of the diaphragm pump, including the hoses.
 Clean the inside of very dirty molded hoses, e. g., using a
pipe cleaner or similar.
 Replace brittle and defective molded hoses.

7.2.3 Clean or replace the controller

During maintenance, the controller can be disconnected and re‑ moved.
Clean the surfaces
 Clean dirty surfaces with a clean, slightly damp cloth. We rec‑
ommend using water or mild soapy water to moisten the cloth.
Reattach the controller after maintenance work has been
completed.
Page 53
Cleaning and maintenance

7.3 Diaphragm pump maintenance

7.3.1 Maintenance items

Items that require maintenance
Example
Diaphragm
pump, front,
semi‑transparent
view
Meaning
5
4
Maintenance items and sequence
1
Suction/pressure distributor
2
Right pump head pair
3
Bottom pump head pair
4
Left pump head pair
5
Top pump head pair
2
1
3
Straightforward maintenance due to split work steps.
Observe the recommended sequence of maintenance steps according to the table:
Replace the O‑ring and pressure relief valve in the suction/
pressure distributor.
Next, on one pump head pair, rst replace the diaphragms.Then change the inlet/outlet valves.Repeat these steps on the next pump head pair.
5320901115_EN_Mx10+12+16C_VARIO_sel_V1.0_130618
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Cleaning and maintenance

7.3.2 Preparation

Disassemble the controller and base see also chapter: 4.3 Controller base on page 30
Disassemble the device and housing sections
Disassemble the
front housing section
1
1. Switch the diaphragm pump off
and unplug the power plug.
3
2
2. Remove the cap from the gas
ballast.
4
3. Unscrew the 4 screws from the
front housing section; hex key size 4.
4. Remove the front housing sec‑
tion and set it aside.
Page 55
Cleaning and maintenance
Disassemble the
outlet hose
5
5. Open the hose clip on the
molded hose leading to the
outlet; at‑head screwdriver
size 1.
7
6
6. Unscrew the 2 screws from the
outlet holder; hex key size 3.
7. Pull the outlet holder, together
with the hose, off the hose nozzle.
5 Diaphragm pump is pre‑
pared
5520901115_EN_Mx10+12+16C_VARIO_sel_V1.0_130618
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Cleaning and maintenance

7.3.3 Suction/pressure distributor maintenance

This description only applies to the following diaphragm pumps: MD 12C and MV 10C VARIO select.
Exploded drawing of suction/pressure distributor (example)
Example
Pressure relief valve
1
2
Meaning
3
4
5
6
7
8
Pressure relief valve + O‑ring maintenance
1 Countersunk screw M4x80 2 Connection DN 25 3 Hose nozzle 4 Suction distributor 5 O‑ring 40 x 2 6 Pressure relief valve D37 7 Pressure distributor 8 Hose nozzle
Page 57
Cleaning and maintenance
Replace pressure relief valve + O‑ring
1
1. Place the vacuum pump on
a clean, stable surface as shown.
3
2
2. Only open the hose clips above
the pressure distributor; at‑
head screwdriver size 1.
4
3. Remove the molded hoses
one by one from the hose nozzles.
5
5. Remove the suction distribu‑
tor with the screws and put it aside.
4. Unscrew the screw ttings.
Phillips screwdriver size 2.
6
6. Carefully remove the used
pressure relief valve, e. g., with a sturdy plastic rod or a narrow
at‑head screwdriver.
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Cleaning and maintenance
7
8
7. Replace the used O‑ring. 8. Clean the pressure distributor if
necessary.
9
Top
10
Bottom
9. Place the new pressure relief
10. Position the suction distributor
valve on the clean surface. Ensure the pressure relief valve is positioned correctly on the pressure distributor.
11 12
11. Push the molded hoses back
12. Secure the hose clips on the
into place on the hose noz‑ zles.
with screws and wind in the
screw ttings until hand‑tight;
Phillips screwdriver size 2.
hose nozzles, e. g., with at
nose pliers.
Page 59
Cleaning and maintenance

7.3.4 Change the diaphragms and valves

Disassemble the next housing sections
1
1. Unscrew the 4 screws from the
rear housing section; hex key size 4.
3
2
2. Remove the housing section
and set it aside.
4
3. Unscrew the screws from the
side panel retaining plate; hex
key size 4.
4. Route the cable out of the
recess.
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Cleaning and maintenance
Remove the side panel
Remove the right
side panel
1
1. Unscrew the 2 outer screws
from the retaining plate; hex
key size 4.
3
2
2. Place the pump carefully on its
side.
4
IMPORTANT!
3. Unscrew the screw ttings
from the side panel; hex key
size 5.
4. Lift the side panel off the pump.
The lower side panel remains attached for now to provide sta‑ bilization.
 Service the pump head pairs one after the other.
 Always change the diaphragms and
valves completely in the pump heads.
Page 61
Cleaning and maintenance
Exploded drawing of pump head (example)
1
2
3
4
5
Valve maintenance
1
Clamping claw + screw ttings
2
Disc springs
3
Valve terminals
4
Valves
5
O‑ring size 26 x 2
6
7
8
9
10
Diaphragm maintenance
6
Head cover + screw ttings
7
Diaphragm clamping disc with square head screw
8
Diaphragms
9
Diaphragm support disc
10
Spacer discs, max. 4 per pump head
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Cleaning and maintenance
Right pump head pair
Example
Right pump head
pair
1
1. Open the hose clips on the out‑
er hoses. Flat‑head screwdriver size 1.
3
2
2. Pull off the molded hoses.
4
3. Unscrew the socket head
screws from the head covers.
Hex key size 5.
5
5. Set the pump head pair aside.
4. Remove the pump head pair
with the screw ttings.
Page 63
Cleaning and maintenance
Replace the diaphragms
Example
Diaphragm
replacement
1
1. Lift the diaphragm upwards on
either side.
3
2
2. Carefully position the dia‑
phragm wrench on the dia‑ phragm support disc and unscrew the assembly with the diaphragm wrench attached.
4
3. Lift the diaphragm, along with
all the parts, out of the vacuum pump.
IMPORTANT!
 Never drop spacer discs into the aluminum housing.
 Keep the spacer discs. It is essential to reinsert the same number
of spacer discs.
4. If the spacer discs adhere to
the connecting rod, remove them carefully.
6320901115_EN_Mx10+12+16C_VARIO_sel_V1.0_130618
Page 64
Cleaning and maintenance
Example
Diaphragm
replacement
5 6
5. Pull out the diaphragm clamp‑
ing disc and remove the used diaphragm.
TOP
6. Place the new diaphragm over
the square head of the clamp‑ ing disc.
IMPORTANT!
 Ensure that the diaphragm is inserted correctly, with the coated,
light‑colored side facing upwards.
 Pay special attention to correct positioning on the square head.
7 8
7. Place all spacer discs on the
thread pin.
8. Secure the diaphragm assem‑
bly inside the diaphragm wrench.
Page 65
Cleaning and maintenance
Example
Diaphragm
replacement
9
9. Hold the spacer discs rmly
and place all the components carefully on the connecting rod thread.
11
10
10. Initially tighten the assembly
with the diaphragm wrench by hand.
12
11. Then position a torque
wrench with socket head bit
on the diaphragm wrench and tighten the assembly to 6 Nm.
12. Repeat steps 1‑11 for chang‑
ing the next diaphragm.
6520901115_EN_Mx10+12+16C_VARIO_sel_V1.0_130618
Page 66
Cleaning and maintenance
Example
Valve replacement
Replace the valves
1
1. Take the pump head pair
which you had set aside.
3
2
2. Unscrew the Torx screws. Torx
screwdriver, size Tx20.
4
3. Remove the clamping claws
from the valve terminals.
(a)
NOTE
 The number and wiring of molded hoses (a) depends on the
position of the pump head pair. Pump head pairs must not be interchanged.
 Valves can adhere to the underside of a valve terminal.
 Depending on the pump type, the valve material is either PTFE
(white) or FFKM (black).
4. Remove the valve terminals
with the disc springs.
Example – view from above:
Valve terminals, valves, O‑rings,
molded hose of a pump head pair.
Page 67
Cleaning and maintenance
5 6
5. Carefully remove the used
O‑rings and valves.
7
7. Clean dirty surfaces carefully. 8. Insert the new sealing rings
9
6. Check the surfaces for dirt.
8
into the grooves.
IN
9. Place the new valves on top
and align them.
EX
Cutout view from above: correct valve positioning. IN = inlet
EX = exhaust (outlet)
6720901115_EN_Mx10+12+16C_VARIO_sel_V1.0_130618
Page 68
Cleaning and maintenance
10
10. Place both valve terminals
with the disc springs on the pump heads.
12 13
11. Place the clamping claws
11
on the valve terminals and
tighten the screw ttings rst
by hand, then with a torque wrench to 3 Nm.
12. Carefully press the dia‑
phragms centrally into the housing opening, ensuring
they are ush with it.
14 15
14. Slide the molded hoses back
onto the hose nozzles.
13. Hold the pump head pair at
15. Secure the hose clips on the
the vacuum pump and wind
in the screw ttings; hex key
size 5.
hose nozzles, e. g., with at
nose pliers.
Page 69
Service the bottom
pump head pair
Cleaning and maintenance
Bottom pump head pair
 Follow the same procedure to change the diaphragms and valves
as for the Right pump head pair, on pages 62 to 68 .
Service the left and
top pump head pair
Left and top pump head pair
1 2
1. Turn the pump with the side
panel upwards.
2. Support the pump, e. g., with
rigid foam below the housing of the frequency converter.
6920901115_EN_Mx10+12+16C_VARIO_sel_V1.0_130618
Page 70
Cleaning and maintenance
Remove the left side
panel
3
3. Unscrew the screw ttings
from the side panel; hex key
size 5.
a
4
4. Lift the side panel off the pump.
a
Left pump head pair
b
b
Top pump head pair
5. Follow the same procedure to change the diaphragms and
valves as for the
Right pump head pair, on pages 62
to 68 .
Page 71
Cleaning and maintenance
Assemble the device and housing sections
Before restarting the pump, all parts of the device and housing which had been removed must be xed back in place.
Mount the side panel
1
1. Replace the side panel on the
pump.
3
3
2. Wind the screw ttings into the
side panel; hex key size 5.
4
3. Turn the pump upwards and
ensure it is positioned secure‑ ly.
5
5. Wind the screw ttings into the
side panel; hex key size 5.
4. Replace the side panel on the
pump.
6
6. Stand the pump on its rubber
feet.
7120901115_EN_Mx10+12+16C_VARIO_sel_V1.0_130618
Page 72
Cleaning and maintenance
Assemble the rear
housing section
7
7. Wind in the 2 outer screws of
the retaining plate; hex key size 4.
9
8
8. Secure the cable in the rear
recess.
10
9. Wind in the screws of the side
panel retaining plate; hex key size 4.
11
11. Wind in the screws of the
housing section; hex key size 4.
10. Replace the rear housing
section.
12
12. Attach the outlet holder,
together with the hose, to the hose nozzle.
Page 73
Cleaning and maintenance
Assemble the outlet
holder
Assemble the front
housing section
13
13. Wind in the 2 screws of the
outlet holder; hex key size 3.
15
14
14. Secure the hose clip, e. g.,
with at nose pliers.
16
15. Replace the front housing
section.
17
17. Place the cap on the gas bal‑
last.
16. Wind in the screws of the
housing section; hex key size 4.
7320901115_EN_Mx10+12+16C_VARIO_sel_V1.0_130618
Page 74
Cleaning and maintenance
18
18. Secure the controller on the
diaphragm pump and connect all cables.
19
19. Plug in the power plug.
If maintenance work has been completed in full:
 Connect the hoses for operation.
 Connect the diaphragm pump to the power supply.
5 Diaphragm pump is ready to be returned to use.
If not reconnected:
5 Diaphragm pump is ready for storage.
Page 75

8 Appendix

8.1 Technical information

Chemistry diaphragm pump series
ME 16C VARIO select MD 12C VARIO select
MV 10C VARIO select

8.1.1 Technical data

Appendix
Technical data
Ambient conditions
Ambient temperature, max. 10–40 °C 50‑104 °F Working temperature 10‑40 °C 50‑104 °F
Storage/transport temperature ‑10‑60 °C 14‑140 °F
Max. altitude
Relative humidity Protection class IP 40 / IK 08
2000 m above sea level
30‑85 %, non‑condensing
Operating conditions
Maximum admissible media temperature (gas), non‑explosive atmo‑
sphere: Short term 80 °C 176 °F Continuous operation 40 °C 104 °F ATEX conformity
II 3/‑ G IIC T3 X internal atm. only
Maximum admissible media temperature (gas),
Short term 40 °C 104 °F Continuous operation 40 °C 104 °F
(US)
6562 ft above sea level
(US)
` atmosphere:
Connections
Vacuum, inlet
Gas ballast GB Gas ballast valve, manual Inert gas adapter – OPTION Small ange GB NT KF DN 16
Venting valve (venting with in‑ ert gas) – OPTION
Exhaust gas, outlet EX
Cold device plug + power supply CEE, CH, CN, UK, IN, US
Plug‑in connector VACUU·BUS
Small ange KF DN 25
Hose nozzle GB NT DN 6/10
Silicone rubber hose 3/6
Hose nozzle DN 15
®
7520901115_EN_Mx10+12+16C_VARIO_sel_V1.0_130618
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Appendix
Technical data
Electrical data
Nominal voltage Nominal frequency Nominal current Power, max. Interface Power cable
Vacuum data
200‑230 VAC 100‑120 VAC
50 Hz/ 60 Hz 50 Hz/ 60 Hz
6.3 A 8 A
1 kW VACUU·BUS
2 m
®
(US)
(US)
ME 16C VARIO select
Max. pump rate 20 m3/h 11.8 cfm
Ultimate vacuum, abs. 70 mbar 53 Torr
Ultimate vacuum with GB,
abs. Number of cylinders/stages 8/1
100 mbar 75 Torr
MD 12C VARIO select
Max. pump rate 15 m3/h 8.8 cfm Ultimate vacuum, abs. 1.5 mbar 1.1 Torr
Ultimate vacuum with GB,
abs. Number of cylinders/stages 8/3
3 mbar 2.2 Torr
MV 10C VARIO select
Max. pump rate 13 m3/h 7.7 cfm Ultimate vacuum, abs. 0.6 mbar 0.45 Torr
Ultimate vacuum with GB,
abs. Number of cylinders/stages 8/4
Max. Inlet pressure, abs. 1.1 bar 825 Torr Max. Outlet pressure, abs. 1.1 bar 825 Torr Max. Differential pressure,
abs. Max. Max. pressure at gas
connections, abs. Sensor integrated integrated Measuring principle Ceramic diaphragm (aluminum oxide),
Accuracy of measurement ±1 mbar/hPa/Torr, ±1 digit
1.2 mbar 0.9 Torr
1.1 bar 825 Torr
1.2 bar 900 Torr
capacitive, gas type independent, absolute pressure
(after adjustment, constant temperature)
Upper measurement limit 1080 mbar 810 Torr
Lower measurement limit 0.1 mbar 0.1 Torr Temperature coefcient < 0.15 mbar/hPa/K 0.11 Torr/K
Page 77
Appendix
Weights* and dimensions (l x w x h)
ME 16C VARIO select
533 mm x 260 mm
Weight* MD 12C VARIO select
533 mm x 260 mm
Weight* MV 10C VARIO select
533 mm x 260 mm
Weight*
* without cable
Other information
Sensor type Controller
Sound pressure level at 1500 rpm/62% (VARIO)
x 450 mm
25.5 kg 56.2 lb
x 450 mm
25.5 kg 56.2 lb
x 450 mm
25.5 kg 56.2 lb
VACUU·SELECT Sensor VACUU·SELECT
x 10.2 in x 17.7 in
x 10.2 in x 17.7 in
x 10.2 in x 17.7 in
47 dBA
(US)
21.0 in
21.0 in
21.0 in
7720901115_EN_Mx10+12+16C_VARIO_sel_V1.0_130618
Page 78
Appendix

8.1.2 Wetted materials

Wetted materials
Component Wetted materials
Pump
Head cover ETFE carbon ber reinforced Diaphragm clamping disc ETFE carbon ber reinforced Diaphragms PTFE Valves MD 12C VARIO select / MV 10C VARIO select Valves ME 16C VARIO select PTFE O‑rings FKM Valve terminals ECTFE, carbon ber reinforced
Hose ttings ETFE/ECTFE Gas ballast pipe PTFE carbon ber reinforced
Hoses PTFE Inlet PP glass ber reinforced Suction/pressure distributor PTFE carbon ber reinforced
Hose tting to outlet/outlet
holder Outlet/hose nozzle PP
FFKM
PTFE carbon ber reinforced
VACUU·SELECT Sensor
Vacuum sensor Aluminum oxide ceramic, gold‑coat‑
ed Measurement chamber PPS Small ange PP Sealing ring at the sensor Chemically resistant uoroelastomer Hose nozzle PP Venting valve seal FFKM
Page 79

8.1.3 Rating plate

Appendix
Data on rating plate
Example
Cut‑out showing
rating plate
In the event of an error, make a note of the type and serial
number on the rating plate.
When contacting our Service Department, please provide
the type and serial number from the rating plate. This will
allow us to provide you with specic support and advice for
your device.
Diaphragm pump rating plate, general
Product series/type
Serial number
Year of manufacture/month
pump rate
Ultimate vacuum
Power supply
ATEX specication*
Manufacturer
* Indicating documentation, group and category, marking G (gas), type of protection,
explosion group, temperature class (see also: Approval for ATEX equipment category).
7920901115_EN_Mx10+12+16C_VARIO_sel_V1.0_130618
Page 80
Appendix

8.2 Ordering information

Ordering information
for pump series
Ordering information
for accessories
Diaphragm pump series Order no.*
ME 16C VARIO select 207417xx MD 12C VARIO select 207437xx MV 10C VARIO select 207447xx
* Order no. depends on power cable CEE, CH, UK, US, CN, IN
Accessories
Vapor condenser expansion kit 20699948 Separator ask AK 20699979 PTFE hose KF DN 25 (l = 1000 mm) 20686033
Centering and sealing ring KF DN 25 C Al/FEP 20635722
Hose (rubber), d Stainless steel hose KF DN 25 (l = 1000 mm) 20673337 Coolant valve VKW‑B 20674220 Venting valve VBM‑B 20674217
Vacuum valve VS 25C, KF DN 25 20665008 VACUU·SELECT Sensor with venting valve 20700020 Pressure sensor VSK 3000 20640530 Hose nozzle KF DN 25/SW 15 20662808 Threaded ange KF DN 16 / 1/2" 20672101 Adapter KF DN 25 to 2x PTFE pipes DN 10/8 20667052
Silencer* G 1/2" 20642473 VACUU·BUS Y adapter 20636656 Extension cable VACUU·BUS, 0.5 m 20612875 Extension cable VACUU·BUS, 2 m 20612552 Extension cable VACUU·BUS, 10 m 22618493 DAkkS calibration with rst delivery 20900214 DAkkS recalibration 20900215
15 mm (length to order) 20686003
i
Order no.
* Caution: Gases containing dust, deposits and condensed solvent vapors can
affecttheowofgasthroughthesilencer.Thesefactorsorahighgasowrate
can cause excess pressure to build up, which can damage the pump bearings, diaphragms, and valves. Do not use the silencer in such circumstances.
Page 81
Appendix
Ordering information
for spare parts
Spare parts
Anti‑rotation protection D17x17.5 20635113 Gas ballast cap 20639223 Service kit MD 12C / MV 10C VARIO select 20696839 Service kit ME 16C VARIO select, 2x 20696867
Power cable CEE 20612058
CH 20676021 CN 20635997 IND 20635365 UK 20612065
A full list of spare parts available can be found under
Order no.
VACUUBRAND > Support > Instructions for repair >
Chemistry diaphragm pumps.
International
sales ofces and
distribution
Sources of supply
Purchase original accessories and original spare parts from a subsidiary of VACUUBRAND GMBH + CO KG or your local dis‑ tributor.
Information about our complete product range is available
in the current product catalog.
Your local distributor or VACUUBRAND GMBH + CO KG
sales ofce is available to assist you with orders, questions
on vacuum control and optimal accessories.
8120901115_EN_Mx10+12+16C_VARIO_sel_V1.0_130618
Page 82
Appendix

8.3 Service

Service offer and
service range
Take advantage of the comprehensive range of services avail‑
able from
VACUUBRAND GMBH + CO KG.
Services in detail
 Product consultation and practical solutions
 Fast delivery of spare parts and accessories
 Professional maintenance
 Immediate repairs processing
On‑site service (on request)
 Calibration (DAkkS‑accredited)
 With Health and Safety Clearance form: return, disposal.
 Visit our website for further information: www.vacuubrand.com.
Service handling
Meet the
terms of service
Return (reshipment)
1. Contact your local distributor or our Service Department.
2. Request an RMA no. for your order.
3. Clean the product thoroughly or if necessary, decontaminate
it professionally.
4. Fill out the Health and Safety Clearance form in full.
5. Return your product, including:
 RMA no. and description of the error  Repair or service order  Health and Safety Clearance form Attach everything to the outside of the package
Reduce downtime, speed up processing. Please have the
required data and documents at hand when contacting our Service Department.
Your order can be quickly and easily processed.Hazards can be prevented.A brief description and/or photos will help locate the
source of the error.
Page 83

8.4 Index

Appendix
Index
A
Abbreviations ................... 9
Accessories ................... 80
Action steps .................... 9
Additional symbols ............... 8
Assemble the front housing section 73
Assemble the outlet holder ....... 73
Assemble the rear housing section 72
ATEX equipment category ........ 21
ATEX equipment labeling ........ 21
B
Blockage protection ............. 20
C
Clean the surfaces .............. 52
Connect venting valve ........... 34
Copyright © .................... 5
D
Disassemble the device and housing
sections ...................... 54
Disassemble the front housing section
54
Disassemble the housing sections . 55
Display conventions .............. 7
Display of operating steps ......... 9
Disposal ...................... 22
Distributors ................... 81
E
EC Declaration of Conformity ..... 85
Electrical connection . . . . . . . . . . . . 36
Eliminate sources of danger ...... 17
Error – Cause – Remedy ... 45, 46, 47
Examples of use ............... 25
EX = exhaust .................. 67
Exhaust gas connection ......... 33
Explanation of safety symbols ...... 8
Exploded drawing of suction/pressure
distributor ..................... 57
F
Foreseeable misuse ......... 12, 13
G
Goods receipt ................. 27
H
Handling instructions ............. 9
Hazards when venting ........... 18
Hot surfaces .................. 19
L
Labels and signs . . . . . . . . . . . . . . . 20
Limitation of use ............... 29
Local area vacuum network ....... 25
M
Maintain minimum distance ....... 19
Maintenance .................. 49
Maintenance intervals . . . . . . . . . . . 50
Mandatory sign ................. 8
Manual structure ................ 6
Measurement chamber . . . . . . . . . . 78
Minimum distances ............. 29
Mount the base (option) .......... 30
Mount the side panel ............ 71
O
Operate gas ballast valve ........ 42
Operating elements
Vacuum controller .............. 40
Operating hours until maintenance 50
Operating panel ................ 10
Operation with gas ballast ........ 42
Operator obligations ............ 13
Ordering information ............ 80
Ordering information for pump series . 80
Outlet ........................ 67
Overheating ................... 19
Overheating protection .......... 20
P
Peripheral devices and ATEX ..... 21
Personnel obligations ........... 13
Personnel qualication .......... 14
Power cable ................... 36
Pressure relief valve ............ 56
Pressure relief valve + O‑ring mainte‑
nance ........................ 56
Prevent blockages in the outlet line 17
Prevent condensate return ....... 17
Prevent ignition sources ......... 21
Process screen (main screen) ..... 40
Product‑specic terms ........... 10
Prohibition sign ................. 8
Protective clothing .............. 15
Pump electrical connection . . . . . . . 36
Q
Qualication description ......... 14
Quality standard ............... 15
I
Icons ......................... 8
Improper use .................. 12
Incorrect measurements ......... 17
IN = inlet ..................... 67
Inlet ......................... 67
Instruction modules .............. 6
Intended use .................. 11
R
Rating plate ................... 79
Recommended aids for cleaning and
maintenance .................. 50
Remove the left side panel ....... 70
Remove the right side panel ...... 60
Replace pressure relief valve + O‑ring 57
Reset thermal fault ............. 46
8320901115_EN_Mx10+12+16C_VARIO_sel_V1.0_130618
Page 84
Appendix
Index
Residual energy ................ 18
Responsibility matrix . . . . . . . . . . . . 14
Return (reshipment) ............. 82
Return to use after maintenance ... 74
S
Safety information . . . . . . . . . . . . . . 11
Safety information for vacuum equip‑
ment ......................... 11
Safety precautions .............. 15
Service handling ............... 82
service range .................. 82
Service the bottom pump head pair 69 Service the left and top pump head pair 69
Sources of supply .............. 81
Spare parts ................... 81
Start ......................... 41
Stop ......................... 41
Storage, prepared . . . . . . . . . . . . . . 74
Switch pump off ................ 43
Switch pump on ................ 39
Symbols ....................... 8
T
Target groups .................. 14
Technical data . . . . . . . . . . . . . . 75, 76
Technical information ............ 75
Technical
support ....................... 45
Term denitions ................ 10
U
Unpacking . . . . . . . . . . . . . . . . . . . . 27
User information ................ 5
V
VACUU·BUS® ................. 10
VACUU·BUS® connector ........ 10
Vacuum connection ............. 32
Vacuum controller operation ...... 39
Valve replacement ........... 65, 66
Valves, pump head ............. 61
venting ....................... 41
Vent with inert gas .............. 34
W
Warning symbol ................. 8
Wetted materials ............... 78
Page 85
Appendix

8.5 EU Declaration of Conformity

EU‑Konformitätserklärung EC Declaration of Conformity Déclaration CE de conformité
Hersteller / Manufacturer / Fabricant:
VACUUBRAND GMBH + CO KG · Alfred‑Zippe‑Str. 4 · 97877 Wertheim · Germany
Hiermit erklärt der Hersteller, dass das Gerät konform ist mit den Bestimmungen
der Richtlinien: Hereby the manufacturer declares that the device is in conformity with the
directives: Par la présente, le fabricant déclare, que le dispositif est conforme aux directives:
2006/42/EG (M‑RL), 2014/30/EU (EMV‑RL), 2014/34/EU (ATEX‑RL), 2011/65/EU (RoHS‑2)
Chemie‑Membranpumpen / Chemistry diaphragm pumps / Pompes à membrane
Typ / Type / Type: ME 16C VARIO select, MD 12C VARIO select,
MV 10C VARIO select
Artikelnummer / Order number / Numéro d‘article: 20741750, 20743750,
20744750
Seriennummer / Serial number / Numéro de série: Siehe Typenschild / See rating plate / Voir plaque signalétique
Angewandte harmonisierte Normen / Harmonized standards applied / Normes har‑
monisées utilisées: DIN EN ISO 12100:2011, DIN EN 1012‑2:2011, IEC 61010‑ 1:2010 (Ed. 3), DIN EN 61010‑1:2011, DIN EN 61326‑1:2013, DIN EN 1127‑1:2011, DIN EN ISO 80079‑36:2016, DIN EN 50581:2013
Bevollmächtigter für die Zusammenstellung der technischen Unterlagen / Person authorised to compile the technical le / Personne autorisée à constituer le dossier technique: Dr. J. Dirscherl · VACUUBRAND GMBH + CO KG · Germany
Ort, Datum / place, date / lieu, date: Wertheim, 13.06.2018
chimie
ppa.
(Dr. F. Gitmans) (Dr. J. Dirscherl)
Geschäftsführer / Managing Director / Gérant
VACUUBRAND GMBH + CO KG
Alfred‑Zippe‑Str. 4 97877 Wertheim
Technischer Leiter / Technical Director / Directeur technique
Tel.: +49 9342 808‑0 Fax: +49 9342 808‑5555 E‑Mail: [email protected]
Web: www.vacuubrand.com
8520901115_EN_Mx10+12+16C_VARIO_sel_V1.0_130618
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Page 87
8720901115_EN_Mx10+12+16C_VARIO_sel_V1.0_130618
Page 88
Technology for Vacuum Systems
Manufacturer:
VACUUBRAND GMBH + CO KG Alfred‑Zippe‑Str. 4 97877 Wertheim GERMANY
Phone:
Head ofce +49 9342 808‑0 Sales +49 9342 808‑5550 Service +49 9342 808‑5660
Fax: +49 9342 808‑5555
Email: [email protected] Web: www.vacuubrand.com
Version: 20901115_EN_Mx10+12+16C_VARIO_sel_V1.0_130618 – TDD1 – © VACUUBRAND GMBH + CO KG – 2018
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