vacuubrand MD 12C NT VARIO o.C. User manual

Instructions for use
OI no.: 20901544Original instructions EN
MV 10C NT VARIO select
MD 12C NT VARIO select
ME 16C NT VARIO select
Chemistry diaphragm pump

Manufacturer:
VACUUBRAND GMBH + CO KGVACUUBRAND GMBH + CO KG
Alfred‑Zippe‑Str. 4Alfred‑Zippe‑Str. 4
97877 Wertheim97877 Wertheim
GERMANYGERMANY
Phone:
Head o󰀩ce [phone]‑0
Sales [phone]‑5550
Service [phone]‑5660
Fax: [phone]‑5555
Email: [email protected]
Web: www.vacuubrand.com
2 20901544_EN_Mx10C+12C+16C_NT Vsel_V1.2_260922
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.
Thank you for purchasing this product from VACUUBRAND GMBH + CO KGVACUUBRAND GMBH + CO KG. You have chosen a modern and
technically high quality product.
Imprint

Contents
320901544_EN_Mx10C+12C+16C_NT Vsel_V1.2_260922
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 Abbreviations ...............................9
1.2.5 Term denitions.............................10
2 Safety information 11
2.1 Usage........................................11
2.1.1 Intended use ...............................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
4.4.3 Venting connection (option)....................34
TABLE OF CONTENTS

Contents
420901544_EN_Mx10C+12C+16C_NT Vsel_V1.2_260922
4.4.4 Gas ballast (GB) ............................35
4.4.5 Electrical connection.........................37
5 Commissioning (operation) 39
5.1 Switch on .....................................39
5.2 Operation ....................................40
5.2.1 Operation (see description of controller)........41
5.2.2 Operation with gas ballast.....................43
5.3 Shutdown (switch o󰀨) ............................44
5.4 Storage.......................................45
6 Troubleshooting 47
6.1 Technical support ...............................47
6.2 Error – Cause – Remedy .........................47
7 Cleaning and maintenance 51
7.1 Information on service work .......................52
7.2 Cleaning ......................................54
7.2.1 Diaphragm pump ...........................54
7.2.2 Clean or replace molded PTFE hoses ...........54
7.2.3 Clean or replace the controller .................54
7.3 Diaphragm pump maintenance ....................55
7.3.1 Maintenance items ..........................55
7.3.2 Preparation ................................56
7.3.3 Suction/pressure distributor maintenance.........58
7.3.4 Change the diaphragms and valves .............61
7.4 Replacing the device fuse ........................77
8 Appendix 78
8.1 Technical information ............................78
8.1.1 Technical data..............................78
8.1.2 Wetted materials ............................81
8.1.3 Rating plate................................82
8.2 Ordering information.............................83
8.3 Service .......................................85
8.4 Index.........................................86
8.5 EC Declaration of Conformity .....................88

520901544_EN_Mx10C+12C+16C_NT Vsel_V1.2_260922
Introduction
11 IntroductionIntroduction
This manual is part of your product. The manual applies to all
versions of the pump and is intended in particular for laboratory
sta󰀨.
1.11.1 User informationUser information
Safety
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 pumpdiaphragm pump
is used as an equivalent to and instead of the product name
Mx 1xC NT VARIO select chemistry diaphragm pumpMx 1xC NT VARIO select chemistry diaphragm pump.
If passing the product on to a third party, also give them this
manual.
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
General
information
Instructions for use
and safety
Copyright © and
copyright law

6 20901544_EN_Mx10C+12C+16C_NT Vsel_V1.2_260922
Introduction
Contact
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 plateRating plate on
the product.
1.21.2 About this documentAbout this document
1.2.11.2.1 Manual structureManual structure
The manual has a modular structure with separate instruction
modules for the diaphragm pump, vacuum controller, and any ac‑
cessories.
Instruction modules
123
4
1Safety information for vacuum equipment
2Description: Vacuum controller – control and operation
3Description: Vacuum pump – connection, operation, mainte‑
nance, mechanics
4Optional description: Accessories
Contact us
Modular instructions
for use
Pump series and
instructions for use

720901544_EN_Mx10C+12C+16C_NT Vsel_V1.2_260922
Introduction
1.2.21.2.2 Display conventionsDisplay conventions
Warning levels
DANGERDANGER
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.
> Take appropriate action to avoid dangerous situa‑
tions!
NOTENOTE
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 + tricks
> Additional information
IMPORTANT!
Display conventions

820901544_EN_Mx10C+12C+16C_NT Vsel_V1.2_260922
Introduction
1.2.31.2.3 Symbols andSymbols and iconsicons
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
Hazardous substance –
hazards to human health.
General
prohibition sign.
General
warning symbol. Warning: hot surface.
Danger: electricity. Disconnect power plug.
General
mandatory sign. Wear protective goggles.
Wear chemical‑resistant
protective gloves.
Read the instructions for
repair.
Additional symbols and icons
Positive example – Do this!
Result – OK Negative example –
Don't do this!
Refers to content in
this manual.
Refers to content in
other supplementary docu‑
ments.
Electric/electronic devices must not be disposed of in
the domestic waste at the end of their service life.
Installation at
temperatures < 40 °C.
Ensure su󰀩cient air circu‑
lation.
Flow arrow
Inlet –
vacuum connection
Flow arrow
Outlet – exhaust gas
Explanation of
safety symbols
Additional
symbols

920901544_EN_Mx10C+12C+16C_NT Vsel_V1.2_260922
Introduction
Handling instructions (action steps)Handling instructions (action steps)
Instructions (single step)
>Perform the step described.
5Result of action
Instructions (multiple steps)
1. First step
2. Next step
5Result of action
Perform the steps in the order described.
1.2.41.2.4 AbbreviationsAbbreviations
Fig. Figure
abs. Absolute
ATM Atmospheric pressure (bar graph, program)
di(di) Interior diameter
DN Nominal diameter
ECTFE Ethylene chlorotriuoroethylene
ETFE Ethylene tetrauoroethylene
EX* Outlet (exhaust, exit), exhaust gas connection
`ATEX equipment labeling
FFKM Peruoroelastomer
FKM Fluoroelastomer
GB Gas ballast
IN* Inlet, vacuum connection
KF Small ange
max. Maximum value
min. Minimum value
PP Polypropylene
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
Display of operating
steps
Abbreviations

10 20901544_EN_Mx10C+12C+16C_NT Vsel_V1.2_260922
Introduction
1.2.51.2.5 Term denitionsTerm denitions
Mx 1xC VARIO
select
Vacuum pump with variable speed mo‑
tor for precise vacuum control, includ‑
ing VACUU·SELECT®controller and
VACUU·SELECT®Sensor.
VACUU·BUS®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.
VACUU·BUS®
address
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.
VACUU·BUS®
client
Peripheral device or component with
VACUU·BUS® port which is integrated in the
bus system, e. g., sensors, valves, level indica‑
tors, etc.
VACUU·BUS®
connector
4‑pin round connector for the bus system from
VACUUBRAND.
VACUU·BUS®
conguration
Assigning a di󰀨erent VACUU·BUS®address to
a VACUU·BUS® component using a gauge or
controller.
VACUU·LAN®Local area vacuum network.
VACUU·SELECT®Vacuum controller, controller with touchscreen;
consisting of operating panel and vacuum sen‑
sor.
VACUU·SELECT®
Sensor
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.
Product‑specic
terms

1120901544_EN_Mx10C+12C+16C_NT Vsel_V1.2_260922
Safety information
22 Safety informationSafety 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.
2.12.1 UsageUsage
Only use the product if it is in perfect working condition.
2.1.12.1.1 Intended useIntended use
A chemistry diaphragm pump from the Mx 1xC NT VARIO selectMx 1xC NT 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, and in a dry environment.
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.
Intended use

12 20901544_EN_Mx10C+12C+16C_NT Vsel_V1.2_260922
Safety information
2.1.22.1.2 Improper useImproper 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,
pulling plug‑in connections on the cable out of the socket,
aspirating, conveying, or compressing solids or uids.
2.1.32.1.3 Foreseeable misuseForeseeable 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,
Improper use
Foreseeable misuse

1320901544_EN_Mx10C+12C+16C_NT Vsel_V1.2_260922
Safety information
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.
2.22.2 ObligationsObligations
2.2.12.2.1 Operator obligationsOperator 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.
Users in the areas of competence in the Responsibility matrixResponsibility 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.
2.2.22.2.2 Personnel obligationsPersonnel 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.
IMPORTANT!
Foreseeable misuse
Operator obligations
Personnel
obligations

14 20901544_EN_Mx10C+12C+16C_NT Vsel_V1.2_260922
Safety information
2.32.3 Target group descriptionTarget group description
The manual must be read and observed by every person who is
tasked with the activities described below.
Personnel qualication
Operator Laboratory sta󰀨, 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 Responsible
specialist
Installation x x x
Commissioning x x x
Network integration x
Operation x x x
Error report x x x
Remedy (x) x x
Maintenance x x
Repair1x x
Repair order x
Cleaning, simple x x x
Shutdown x x x
Decontamination2x x
1 See also our website:
VACUUBRAND > Support > Instructions for repair
2 Alternatively,arrangefordecontaminationbyaqualiedserviceprovider
Target groups
Qualication
description
Responsibility matrix

1520901544_EN_Mx10C+12C+16C_NT Vsel_V1.2_260922
Safety information
2.42.4 General safety informationGeneral safety information
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.
2.4.12.4.1 Protective clothingProtective 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.
2.4.22.4.2 Safety precautionsSafety 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.
Safety precautions
IMPORTANT!
IMPORTANT!
Quality standards
and safety
Protective clothing

16 20901544_EN_Mx10C+12C+16C_NT Vsel_V1.2_260922
Safety information
2.4.32.4.3 Laboratory and working materialsLaboratory and working materials
DANGERDANGER
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.
Hazards due to di󰀨erent substances
Pumping di󰀨erent 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.
Pumping di󰀨erent
substances

1720901544_EN_Mx10C+12C+16C_NT Vsel_V1.2_260922
Safety information
2.4.42.4.4 Eliminate sources of dangerEliminate sources of danger
Take mechanical stability into account
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 ININ and
outlet EXEX must not be mixed up.
>Be aware of the max. pressures at the inlet and outlet of the
pump as well as the max. admissible di󰀨erential pressure
between the inlet and outlet, according to 8.1.1 Technical data8.1.1 Technical data
on page 78on page 78.
>The system to be evacuated as well as all hose connections
must be mechanically stable.
Prevent condensate return
Condensate can damage the pump head. Condensate must not
ow back into the outlet EXEX 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.
Prevent backup in
the outlet line
Note
mechanical load
capacity

18 20901544_EN_Mx10C+12C+16C_NT Vsel_V1.2_260922
Safety information
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 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 o󰀨 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.
Observe vacuum
pump design
Possible
residual energy
Hazards when
venting
Prevent incorrect
measurements

1920901544_EN_Mx10C+12C+16C_NT Vsel_V1.2_260922
Safety information
Risk of burns due to hot surfaces or overheating
Depending on operation conditions and ambient conditions dan‑
gers due to hot surfaces may arise. Prevent any danger arising
from hot surfaces.
>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.
>Keep the electrical power cable away from hot surfaces.
>Keep the electrical power cable away from heated surfaces.
The vacuum pump can be damaged due to overheating. Possi‑
ble causes include insu󰀩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 su󰀩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 788.1.1 Technical data on page 78.
Surface tempera‑
tures
Overheating

20 20901544_EN_Mx10C+12C+16C_NT Vsel_V1.2_260922
Safety information
Keep signs legible
Ke e p a ny si g n s a󰀩 xe d t o th e d ev i c e in an e a s i l y re a da b l e c o n d it i o n:
>Connection labels
>Warning and information signs
>Motor data and rating plates
2.52.5 Motor protectionMotor protection
A temperature sensor in the winding protects the pump motor. In
case of excess temperature or if the motor is blocked, the motor
is shut down.
If the vacuum pump is switched o󰀨 due to this safe‑
ty precaution, the error must be cleared manually:
Unplug pump from the power supply or acknowledge error mes‑
sage at the controller Eliminate cause of error  Allow pump
to cool down  Switch vacuum pump back on.
Labels and signs
Procedure for
switching vacuum
pump back on
Overheating
protection, blockage
protection