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Technology for Vacuum Systems
Instructions for use
MZ 2 VARIO-SP
MD 4 VARIO-SP
Diaphragm pumps
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Dear customer,
Your VACUUBRAND diaphragm pumps are designed to provide you with
many years of trouble-free service with optimal performance. Our many
years of practical experience allow us to provide a wealth of application
and safety information. Please read these instructions for use before the
initial operation of your pump.
VACUUBRAND diaphragm pumps combine our many years of experience in design, construction and practical operation, with the latest developments in material and manufacturing technology.
Our quality maxim is the ”zero defect” principle:
Every diaphragm pump, before leaving our factory, is tested intensively,
including an endurance run of 14 hours. Any faults, even those which oc-
cur rarely, are identied and can be eliminated immediately.
After completion of the endurance run, every pump is tested, and must
achieve specications before shipment.
We are committed to providing our customers only pumps that meet this
high quality standard.
While our pumps cannot eliminate all of your work, we design, manufacture and test them to ensure that they will be an effective and trouble-free
tool to assist you in that work.
Yours,
VACUUBRAND GMBH + CO KG
After sales service:
Contact your local dealer or call +49 9342 808-5500.
Trademark index:
VACUU•LAN® (US-Reg.No 3,704,401), VACUU•BUS®, VACUU•CONTROL®,
Peltronic®, VARIO® (US-Reg.No 3,833,788), VACUUBRAND® (US-Reg.No
3,733,388) and also the shown company logos are registered trademarks
of VACUUBRAND GMBH + CO KG in Germany and/or other countries.
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DE
Achtung: Die vorliegende Betriebsanleitung ist nicht in allen EU-Sprachen verfügbar.
Der Anwender darf die beschriebenen Geräte nur dann in Betrieb nehmen, wenn er
die vorliegende Anleitung versteht oder eine fachlich korrekte Übersetzung der vollständigen Anleitung vorliegen hat. Die Betriebsanleitung muss vor Inbetriebnahme
der Geräte vollständig gelesen und verstanden werden, und alle geforderten Maßnahmen müssen eingehalten werden. ”Sicherheitshinweise für Vakuumgeräte”
EN
Attention: This manual is not available in all languages of the EU. The user must not
operate the device if he does not understand this manual. In this case a technically
correct translation of the complete manual has to be available. The manual must
be completely read and understood before operation of the device and all required
measures must be applied. ”Safety instructions for vacuum equipment”
FR
Attention: Le mode d’emploi présent n’est pas disponible dans toutes les langues
d’Union Européenne. L’utilisateur ne doit mettre le dispositif en marche que s’il
comprend le mode d’emploi présent ou si une traduction complète et correcte du
mode d’emploi est sous ses yeux. Le dispositif ne doit pas être mis en marche
avant que le mode d’emploi ait été lu et compris complètement et seulement si le
mode d’emploi est observé et tous les mesures demandées sont prises.
«Avis de sécurité pour des dispositifs à vide»
BG
Внимание: Тези инструкции не са преведени на всички езици от ЕО. Потребителят не бива да работи с уреда, ако не разбира инструкциите за ползване. В
този случай е необходимо да бъде предоставен пълен технически превод на
инструкциите за ползване. Преди работа с уреда е задължително потребителят да прочете изцяло инструкциите за работа.
”Указания за безопасност за вакуумни уреди”
CN
注意：该操作手册不提供所有的语言版本。操作者在没有理解手册之前，不能操作
该设备。在这种情况下，需要有一个整个操作手册技术上正确的翻译。在操作该设
备前，必须完全阅读并理解该操作手册，必须实施所有需要的测量。
真空设备的安全信息
CZ
Upozornění :Tento návod k použití není k dispozici ve všech jazycích Evropské
unie. Uživatel není oprávněn požít přístroj pokud nerozumí tomuto návodu. V takovém případě je nutno zajistit technicky korektní překlad manuálu do češtiny. Návod
musí být uživatelem prostudován a uživatel mu musí plně porozumět před tím než
začne přístroj používat. Uživatel musí dodržet všechna příslušná a požadovaná
opatření. ”Bezpečnostní upozornění pro vakuové přístroje”.
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DA
Bemærk: Denne manual foreligger ikke på alle EU sprog. Brugeren må ikke be-
tjene apparatet hvis manualen ikke er forstået. I det tilfælde skal en teknisk korrekt
oversættelse af hele manual stilles til rådighed. Manual skal være gennemlæst og
forstået før apparatet betjenes og alle nødvendige forholdsregler skal tages.
»Sikkerhedsregler for vakuumudstyr«
EE
Tähelepanu! Käesolev kasutusjuhend ei ole kõigis EL keeltes saadaval. Kasutaja
ei tohi seadet käsitseda, kui ta ei saa kasutusjuhendist aru. Sel juhul peab saadaval
olema kogu kasutusjuhendi tehniliselt korrektne tõlge. Enne seadme kasutamist tuleb kogu juhend läbi lugeda, see peab olema arusaadav ning kõik nõutud meetmed
peavad olema rakendatud. ”Ohutusnõuded vaakumseadmetele”
ES
Atención: Este manual no está disponible en todos los idiomas de UE. El usuario
no debe manejar el instrumento si no entiende este manual. En este caso se debe
disponer de una traducción técnicamente correcta del manual completo. El manual
debe ser leído y entendido completamente y deben aplicarse todas las medidas
de seguridad antes de manejar el instrumento. ”Notas sobre la seguridad para
equipos de vacío”
FI
Huomio: Tämä käyttöohje ei ole saatavilla kaikilla EU: n kielillä. Käyttäjä ei saa käyttää laitetta, jos hän ei ymmärrä tätä ohjekirjaa. Tässä tapauksessa on saatavilla oltava teknisesti oikein tehty ja täydellinen ohjekirjan käännös. Ennen laitteen käyttöä
on ohjekirja luettava ja ymmärrettävä kokonaan sekä suoritettava kaikki tarvittavat
valmistelut ja muut toimenpiteet. ”Vakuumilaitteen turvallisuustiedot”
GR
Προσοχή! : Οι οδηγίες αυτές δεν είναι διαθέσιµες σε όλες τις γλώσσες της Ευρωπαϊκής Ένωσης. Ο χρήστης δεν πρέπει να θέσει σε λειτουργία την συσκευή αν δεν
κατανοήσει πλήρως τις οδηγίες αυτές. Σε τέτοια περίπτωση ο χρήστης πρέπει να
προµηθευτεί ακριßή µετάφραση του ßιßλίου οδηγιών. Ο χρήστης πρέπει να διαßάσει και να κατανοήσει πλήρως τις οδηγίες χρήσης και να λάßει όλα τα απαραίτητα
µέτρα πριν θέσει σε λειτουργία την συσκευή. ”Υποδείξεις ασφάλειας για αντλίες
κενού”
HR
Pažnja:ove upute ne postoje na svim jezicima Europske Unije. Korisnik nemora raditi sa aparatom ako ne razumije ove upute.U tom slucaju tehnicki ispravni prijevod
cijelih uputstava mora biti na raspolaganju. Uputstva moraju biti cijela procitana i
razumljiva prije rada sa aparatom i sve zahtijevane mjere moraju biti primjenjene.
”Sigurnosne napomene za vakuumske uređaje”
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HU
Figyelem! Ez a kezelési utasítás nem áll rendelkezésre az EU összes nyelvén.
Ha a felhasználó nem érti jelen használati utasítás szövegét, nem üzemeltetheti a
készüléket. Ez esetben a teljes gépkönyv fordításáról gondoskodni kell. Üzembe
helyezés előtt a kezelőnek végig kell olvasnia, meg kell értenie azt, továbbá az
üzemeltetéshez szükséges összes mérést el kell végeznie. ”A vákuum�készü� ”A vákuum�készü�”A vákuum�készülékekkel kapcsolatos biztonsági tudnivalók”
IT
Attenzione: Questo manuale non è disponibile in tutte le lingue della Comunità Europea (CE). L‘utilizzatore non deve operare con lo strumento se non comprende
questo manuale. In questo caso deve essere resa disponibile una traduzione tecnicamente corretta del manuale completo. Il manuale deve essere completamente
letto e compreso prima di operare con lo strumento e devono essere applicati tutti
gli accorgimenti richiesti. ”Istruzioni di sicurezza per apparecchi a vuoto”
JP
注意：この取扱説明書はすべての言語で利用可能ではありません。 もしこの取扱
説明書を理解できないならば、ユーザーは装置を操作してはなりません。 この場
合、技術的に正しい翻訳がなされた完全なマニュアルを用意しなければなりませ
ん。 装置を作動する前にマニュアルを完全に読み、そして理解されなくてはなり
ません。そして、すべての要求される対策を講じなければなりません。
真空装置を安全に取り扱うために
KR
주의 : 이 매뉴얼은 모든 언어로 번역되지는 않습니다. 만약 이 매뉴얼의 내용을 충분
히 인지하지 못했다면 기기를 작동하지 마십시오. 매뉴얼의 내용을 기술적으로 정확
하게 번역한 경우에 이용하십시오. 기기를 사용하기 전에 이 매뉴얼을 충분히 읽고
이해하고 모든 요구되는 사항들을 적용해야 합니다.
진공 장비에 대한 안전 정보
LT
Dėmesio: šis vadovas nėra pateikiamas visomis ES kalbomis. Naudotojui draudžiama eksploatuoti įtaisą, jeigu jis nesupranta šio vadovo. Tokiu atveju reikia turėti
viso vadovo techniškai taisyklingą vertimą. Vadovą būtina visą perskaityti ir suprasti
pateikiamas instrukcijas prieš pradedant eksploatuoti įtaisą, bei imtis visų reikiamų
priemonių. ”Vakuuminės įrangos saugos informacija”
LV
Uzmanību: Lietotāja instrukcija nav pieejama visās ES valodās. Lietotājs nedrīkst
lietot iekārtu, ja viņš nesaprot lietotāja instrukcijā rakstīto. Šādā gadījumā, ir nepieciešams nodrošināt tehniski pareizu visas lietotāja instrukcijas tulkojumu. Pirms
sākt lietot iekārtu, un, lai izpildītu visas nepieciešamās prasības, iekārtas lietotāja
instrukcija ir pilnībā jāizlasa un jāsaprot. ”Vakuuma iekārtu drošības noteikumi”
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NL
Attentie: Deze gebruiksaanwijzing is niet in alle talen van de EU verkrijgbaar. De
gebruiker moet niet met dit apparaat gaan werken als voor hem/haar de gebruiks-
aanwijzing niet voldoende duidelijk is. Bij gebruik van deze apparatuur is het noodzakelijk een technisch correcte vertaling van de complete gebruiksaanwijzing te
hebben. Voor het in gebruik nemen van het apparaat moet de gebruiksaanwijzing
volledig gelezen en duidelijk zijn en dienen alle benodigde maatregelen te zijn ge-
nomen. ”Veiligheidsvoorschriften voor vacuümapparaten”
PL
Uwaga!! Ta instrukcja nie jest dostępna we wszystkich językach Unii Europejskiej.
Użytkownik nie może rozpocząć pracy z urządzeniem dopóki nie przeczytał instrukcji i nie jest pewien wszystkich informacji w niej zawartych. Instrukcja musi byc w
całości przeczytana i zrozumiana przed podjęciem pracy z urządzeniem oraz należy podjąć wszystkie niezbędne kroki związane z prawidłowym uzytkowaniem.
”Wskazówki bezpieczeństwa do urządzeń próżniowych”
PT
Atenção: Este manual não está disponível em todas as línguas da UE. O usuário
não deve utilizar o dispositivo, se não entender este manual. Neste caso, uma tradução tecnicamente correta do manual completo tem de estar disponível. O manual deve ser lido e entendido completamente antes da utilização do equipamento e
todas as medidas necessárias devem ser aplicadas. ”Informação de Segurança
para Equipamento que funciona a Vácuo”
RO
Atentie: Acest manual nu este disponibil in toate limbile EU. Utilizatorul nu trebuie
sa lucreze cu aparatul daca daca nu intelege manualul. Astfel, va disponibile o
traducere corecta si completa a manualului. Manualul trebuie citit si inteles in intregime inainte de a lucra cu aparatul si a luat toate masurile care se impun.
”Instrucţiuni de siguranţă pentru aparatele de vidare”
RU
Внимание: Эта инструкция по эксплуатации не имеется на всех языках. Потребителю не дозволенно эксплуатировать данный прибор, если он не понимает
эту инструкцию. В этом случае нужен технически правильный перевод полной
инструкции. Прежде чем использовать этот прибор,
необходимо полностью прочитать и понять эту инструкцию и принять все необходимые меры. ”Указания по технике безопасности при работе с вакуумными устройствами”
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SE
Varning: Denna instruktion är inte tillgänglig på alla språk inom EU. Användaren får
inte starta utrustningen om hon/han inte förstår denna instruktion. Om så är fallet
måste en tekniskt korrekt instruktion göras tillgänglig. Instruktionen måste läsas och
förstås helt före utrustningen tas i drift och nödvändiga åtgärder göres.
”Säkerhetsinformation för vakuumutrustning”
SI
Pozor: Ta navodila niso na voljo v vseh jezikih EU. Uporabnik ne sme upravljati
z napravo, če ne razume teh navodil. V primeru nerazumljivosti mora biti na voljo
tehnično pravilen prevod. Navodila se morajo prebrati in razumeti pred uporaba
naprave, opravljene pa moraja biti tudi vse potrebne meritve.
”Varnostni nasveti za vakuumske naprave”
SK
Upozornenie: Tento manuál nie je k dispozícii vo všetkých jazykoch EÚ. Užívateľ
nesmie obsluhovať zariadenie, pokiaľ nerozumie tomuto manuálu. V takomto prípade musí byť k dispozícii technicky správny preklad celého manuálu. Pred obsluhou
zariadenia je potrebné si prečítať celý manuál a porozumieť mu, a musia byť prijaté
všetky opatrenia. ”Bezpečnostné pokyny pre vákuové zariadenia”
TR
Dikkat : Bu kullanım kitabı, tüm dillerde mevcut değildir. Kullanıcı, bu kullanım kitabını anlayamadıysa cihazı çalıştırmamalıdır. Bu durumda, komple kullanım kitabının, teknik olarak düzgün çevirisinin bulunması gerekir. Cihazın çalıştırılmasından
önce kullanım kitabının komple okunması ve anlaşılması ve tüm gerekli ölçümlerin
uygulanması gerekir. ”Vakumlu cihazlar için güvenlik uyarıları”
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Contents
Safety information! ............................................................. 9
Important information! ......................................................................... 9
General information ............................................................................11
Intended use.......................................................................................11
Setting up and installing the equipment ............................................ 12
Ambient conditions ............................................................................ 14
Operating conditions ......................................................................... 14
Safety during operation ..................................................................... 16
Maintenance and repair..................................................................... 18
`
Important information: Equipment marking (ATEX) ................... 20
Technical data ................................................................... 22
Gas inlet temperatures ..................................................................... 23
Wetted parts ..................................................................................... 24
Abbreviations .................................................................................... 24
Pump parts ....................................................................................... 24
Use and operation ............................................................ 26
Controlling the pump ........................................................................ 26
Installing a pump in a vacuum system .............................................. 31
During operation ................................................................................ 32
Shutdown & storage .......................................................................... 34
Accessories ...................................................................... 35
Troubleshooting ............................................................... 36
Replacing diaphragms and valves.................................. 38
Cleaning and inspecting the pump heads ........................................ 40
Replacing the diaphragm ................................................................. 41
Assembling the pump heads ............................................................ 43
Assembling ttings ............................................................................ 44
Repair - Maintenance - Return - Calibration ................. 45
Warranty ............................................................................ 47
Health and safety clearance form ................................... 48
EC Declaration of Conformity of the Machinery ........... 49
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Safety information!
Important information!
+ Keep this manual complete and accessible to per-
sonnel at all times!
+ Read this manual carefully before installing or op-
erating the equipment. Observe the instructions
contained in this manual.
+ Do not modify the equipment without authoriza-
tion.
NOTICE
This manual is an integral part of the equipment described therein. It describes the safe and proper use
of the vacuum pump.
Make operating personnel aware of dangers arising
from the pump and the pumped substances.
VACUUBRAND disclaims any liability for inappropriate use of these pumps and for damage from failure
to follow instructions contained in this manual.
This manual is only to be used and distributed in its complete and original form. It is strictly the users’ responsibility
to check carefully the validity of this manual with respect
to his product.
Manual-no.: 999108 / 04/18/2016
The following signal word panels and safety
symbols are used throughout this manual:
This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages
that follow this symbol to avoid possible injury or death.
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➨ DANGER indicates a hazardous situation which, if not
avoided, will result in death or serious injury.
+ WARNING indicates a hazardous situation which, if
not avoided, could result in death or serious injury.
• CAUTION indicates a hazardous situation which, if not
avoided, could result in minor or moderate injury.
NOTICE
NOTICE is used to address practices not related to
personal injury.
Caution! Hot surface!
Disconnect equipment from power.
Formatting used in this manual:
Note: The signal word panels in all sections of this manual always refer
to all paragraphs of the same format (➨ / + / • / plain text) following each
signal word panel.
The document ”Safety information for vacuum equipment” is
part of this manual! Read the ”Safety information for vacuum
equipment” and observe the instructions contained therein!
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General information
NOTICE
Remove all packing material from the packing box. Remove the product from its packing-box and retain all packaging until the equipment is inspected and tested. Remove the protective caps from the inlet and outlet ports
and retain for future use. Inspect the equipment promptly
and carefully.
If the equipment is damaged, notify the supplier and the
carrier in writing within three days. Retain all packing material for inspection. State the item number of the product
together with the order number and the supplier’s invoice
number. Failure to check and give notice of damage will
void any and all warranty claims for those deciencies.
Replace the protective caps, if the equipment is not used
immediately. Store the equipment in dry and non-corrosive
conditions (see also „Technical data“, pg. 22).
+ Do not use any damaged equipment.
• Use the mounted handles when moving the pump.
Intended use
+ Do not use the pump or any system parts on humans
or animals.
+ Ensure that the individual components are only con-
nected, combined and operated according to their design and as indicated in the instructions for use. Use
only original manufacturer’s spare parts and ac-
cessories. Otherwise the safety and performance of
the equipment, as well as the electromagnetic compatibility of the equipment might be reduced.
The CE mark may be voided if not using original man-
ufacturer’s spare parts.
+ Comply with all notes on correct vacuum and electrical
connections; see section „Use and operation“, pg. 26.
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+ Do not use the pump to generate pressure.
+ The pumps are designed for ambient temperatures
during operation between +50°F and +104°F (+10°C
and +40°C). Periodically check maximum temperatures if installing the pump in a cabinet or a housing.
Make sure ventilation is adequate to maintain recommended operating temperature. Install an external automatic ventilation system if necessary. If pumping hot
process gases, make sure that the maximum permitted
gas inlet temperature is not exceeded. The maximum
permitted gas inlet temperature depends on several
parameters like inlet pressure and ambient temperature (see „Technical data“, pg. 22).
NOTICE
+ Particles and dust must not enter the pump.
+ Do not pump liquids.
• Ensure that the pump is chemically resistant to the
pumped substances prior to operation.
Use the equipment only as intended, that is, for generation of vacuum in vessels designed for that purpose. Any
other use will automatically invalidate all warranty and liability claims. Remain aware of safety and risks.
Setting up and installing the equipment
➨ Equipment must be connected only to a suitable elec-
trical supply and a suitable ground point. Failure to
connect the motor to ground may result in deadly electrical shock.
+ Due to the high compression ratio, the pump may gen-
erate overpressure at the outlet. Check pressure compatibility with system components (e.g., exhaust pipeline or exhaust valve) at the outlet.
+ Do not permit any uncontrolled pressurizing.
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+ Keep the control line away from heated surfaces.
• Provide a rm, level platform for the equipment. Check
that the system which you are going to evacuate is
mechanically stable. Check that all ttings are secure.
Ensure a stable position of the pump without any mechanical contact other than the pump feet.
• Comply with maximum permissible pressures at in-
let and outlet and with maximum permissible pres-
sure differences between inlet and outlet. See section
„Technical data“, pg. 22. Do not operate the pump
with overpressure at the inlet.
• Avoid overpressure of more than 17.5 psi absolute (1.2
NOTICE
bar absolute) in the event that gas or inert gas is connected to the pump, or to a venting valve.
• Note: Flexible elements will shrink when evacuated.
• Connect hoses gas tight at inlet and outlet of the pump.
• Ensure that no foreign objects can be drawn into the
pump.
• Check the power source and the pump’s rating plate
to be sure that the power source and the equipment
match in voltage, phase, and frequency.
Make sure ventilation is adequate to maintain recommended operating temperature. Keep a minimum distance of
2 in (5 cm) between the cooling fan and surrounding items
(e.g., housing, walls, etc.), or else install an external automatic ventilation system. Check fan regularly for dust/dirt.
Clean fan guard grill if necessary to avoid a reduction of
ventilation.
Use only hoses at the inlet and outlet of the pump with
an inner diameter at least as large as the diameter of the
pump’s tubing (to avoid overpressure at the outlet, and
reduction of pumping speed at the inlet).
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Allow the equipment to equilibrate to ambient temperature
if you bring it from cold environment into a room prior to
operation. Notice if there is water condensation on cold
surfaces.
Comply with all applicable and relevant safety require-
ments (regulations and guidelines). Implement the required actions and adopt suitable safety measures.
Ambient conditions
➨ Do not reach for this product if it has fallen into liquid.
NOTICE
There is a risk of deadly electrical shock. Unplug the
system immediately.
+ Do not use this product in an area where it can fall or
be pulled into water or other liquids.
• Adopt suitable measures in case of differences from
recommended conditions, e.g., using the equipment
outdoors, installation in altitudes of more than 6500 ft
(2000 m) above mean sea level, conductive pollution
or external condensation on the pump.
• Do not operate this product near ames.
To the best of our knowledge the equipment is in compliance with the requirements of the applicable EC-directives and harmonized standards (see ”Declaration of Conformity”) with regard to design, type and model. Directive
EN 61010-1 gives in detail the conditions under which the
equipment can be operated safely (see also IP degree of
protection, „Technical data“, pg. 22).
Operating conditions
➨ These pumps are not approved for operation in po-
tentially explosive atmospheres. Do not operate the
pumps in potentially explosive atmospheres.
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➨ Pumps without the ”
not approved for the pumping of potentially explosive atmospheres. Do not pump potentially explosive atmospheres with those pumps.
➨ Pumps bearing the ”
are approved for the pumping of potentially explo-
sive atmospheres according to their classication
II 3G IIC T3 X according to ATEX, but they are not
approved for operation in potentially explosive atmospheres (see section „
Equipment marking (ATEX)“, pg. 20).
➨ The pumps are not suitable to pump any of the sub-
stances listed below.
Do not pump:
” mark on the rating plate are
`
” mark on their rating plates
`
Important information:
`
- unstable substances
- substances which react explosively under impact
(mechanical stress) without air
- substances which react explosively when being exposed to elevated temperatures without air,
- substances subject to auto-ignition,
- substances which are inammable without air
- explosive substances.
➨ The pumps are not approved for operation below
ground. Do not operate the pump below ground.
• Do not pump substances which may form depos-
its inside the pump. The pumps are not suitable for
pumping substances which may form deposits inside
the pump. Deposits and condensate in the pump may
lead to increased temperatures even to the point of
exceeding the maximum permitted temperatures.
• Check the inlet and outlet of the pump, if there is a
danger of forming deposits inside the pump, e.g., in
the pump chambers (the pump chamber is the part
between diaphragm and head cover. See section „Replacing diaphragms and valves“, pg. 38). Inspect the
Page 16
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pump chambers regularly and clean if necessary.
• Consider interactions and chemical reactions of
the pumped media. Ensure that the materials of the
pump’s wetted parts are compatible with the pumped
substances, see section „Technical data“, pg. 22.
When changing the substances pumped, we recom-
mend purging the pump with air or inert gas prior to
changing the pumped media. Purging the pump will
pump out residues and it will reduce the possibility of
reactions of the pumped substances with each other
and with the pump’s materials.
Safety during operation
➨ Adopt suitable measures to prevent the release of dan-
gerous, toxic, explosive, corrosive, noxious or pollut-
ing uids, vapors and gases. To prevent any emission
of such substances from the pump outlet, install an
appropriate collecting and disposal system and take
protective action for pump and environment.
➨ You must take suitable precautions to prevent any for-
mation of explosive mixtures in the pump chamber or
at the outlet of the pump. In case, e.g., of a diaphragm
failure, mechanically generated sparks, hot surfaces
or static electricity may ignite these mixtures. Use inert
gas for venting, if necessary.
➨ Drain appropriately or otherwise remove any poten-
tially explosive mixtures at the outlet of the pump, or
dilute them to non-explosive concentrations.
➨ Never operate this pump if it has a damaged cord.
+ If the pump is not working properly, has been dropped
or has fallen into water, contact your pump service provider.
+ Prevent any part of the human body from coming into
contact with vacuum.
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+ Make sure that the exhaust pipeline cannot become
blocked. If there is an exhaust isolation valve, make
sure that you cannot operate the equipment with the
valve closed to avoid a risk of bursting!
+ Always provide a free and pressureless exhaust outlet
to avoid damage to pump valves and risk of bursting.
+ Comply with applicable regulations when disposing of
chemicals. Take into consideration that chemicals may
be contaminated. Take adequate precautions to protect people from the effects of dangerous substances
(chemicals, thermal decomposition products of uoroelastomers). Use appropriate protective clothing and
safety goggles.
+ Interruption of the pump (e.g., due to power failure),
failure of connected components or of parts of the supply, or change in parameters must not be allowed to
lead to dangerous conditions. In case of a diaphragm
failure or in case of a leak in the manifold, pumped
substances might be released into the environment or
into the pump housing or motor.
Comply with all notes regarding proper use of the
pumps, as well as operation and maintenance guidance.
+ The residual leak rate of the equipment might render
possible an exchange of gas, albeit extremely slight,
between the environment and the vacuum system.
Adopt suitable measures to prevent contamination of
the pumped substances or the environment.
• Ensure that no parts of your clothing, hair or ngers
can be caught or drawn in at the inlet of the pump.
Never insert ngers or drop any other object into the
inlet or outlet.
• Pay attention to the safety symbol ”hot surfaces” on
the equipment. Hot parts may cause burns if touched.
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Adopt suitable measures to prevent any danger arising from hot surfaces or electric sparks. Ensure that
hot surfaces of the pump do not cause burns. Provide
a suitable contact guard if necessary.
NOTICE
Prevent the backpressure of gases and the backow of
condensates at the outlet.
Provide appropriate protective measures to allow for the
possibility of failure and malfunction. The protective measures must also allow for the requirements of the respective application.
A temperature sensor at the circuit board protects the motor: Current limitation in case the temperature at the circuit
board raises above 158°F (70°C). At very high temperatures the pump is switched off.
Note: Only manual reset is possible. Disconnect the pump
from the power source. Identify and eliminate the cause of
failure.
NOTICE
Maintenance and repair
In order to comply with laws (occupational, health and
safety regulations, safety at work law and regulations for
environmental protection) vacuum pumps, components
and measuring instruments can only be returned when
certain procedures (see section „Repair - Maintenance -
Return - Calibration“, pg.45) are followed.
Take advantage of our service seminars, which put special
focus on the maintenance and repair of vacuum pumps.
For details and for the online ”Instructions for repair” manual see www.vacuubrand.com.
In normal use, the lifetime of the diaphragms and valves
is typically 15,000 operating hours (at 1500 rpm). Bearings have a typical durability of 40000 h.
Page 19
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➨ Ensure that the pump cannot be operated acciden-
tally. Never operate the pump if covers or other
parts of the pump are disassembled.
➨ Disconnect the pump from the power supply and
wait two minutes before starting maintenance to al-
low the capacitors to discharge.
➨ Note: The pump may be contaminated with process
chemicals, which have been pumped during operation.
Ensure that the pump is completely decontaminated
before maintenance commences.
+ Take adequate precautions to protect people from the
NOTICE
effects of dangerous substances if contamination has
occurred. Use appropriate protective clothing, safety
goggles and protective gloves.
+ Wear parts have to be replaced regularly.
+ Never operate a defective or damaged pump.
+ Vent the pump before starting maintenance. Isolate the
pump and other components from the vacuum system.
Allow sufcient cooling of the pump.
Ensure that maintenance is done only by suitably trained
and supervised technicians. Ensure that the maintenance
technician is familiar with the safety procedures, which relate to the products processed by the pumping system.
Only dismantle the pump as far as necessary.
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Important information: Equipment marking (ATEX)
`
VACUUBRAND equipment bearing mark (see rating plate)
II 3G IIC T3 X
`
Internal Atm. only
Tech. File Ref.: VAC-EX01
The classication II 3G IIC T3 X according to ATEX is only valid for the inner part (wetted part, pumped gas or vapor) of the equipment. The equipment is not suitable for use in external, potentially explosive atmospheres
(environment).
The overall category of the equipment depends on the connected com-
ponents. If the connected components do not comply with the classication of the VACUUBRAND equipment, the specied category of the
VACUUBRAND equipment is no longer valid.
Vacuum pumps and vacuum gauges in category 3 are intended for connection to equipment in which during normal operation explosive atmospheres caused by gases, vapors or mists normally don’t occur; or, if they
do occur, are likely to do so only infrequently and for a short period only.
Equipment in this category ensures the requisite level of protection during normal operation.
The use of gas ballast or the operation of venting valves is only permitted if thereby explosive atmospheres normally don’t occur in the interior
of the equipment or, if they do occur, are likely to do so only infrequently
and for a short period.
The pumps are marked with ”X” (according to EN 13463-1), i.e., restrictions of the operation conditions:
• The equipment is designated for a low degree of mechanical stress
and has to be installed in a way so that it cannot be damaged from
outside.
Pumping units have to be installed so that they are protected against
shocks from the outside and against glass splinters in the event of
breakage (implosion).
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• The equipment is designated for an ambient and gas inlet temperature
during operation of +10 to +40°C. Never exceed these ambient and
gas inlet temperatures. If pumping / measuring gases which are not
potentially explosive, extended gas inlet temperatures are permissible.
See instructions for use, section “Gas inlet temperatures” or “Technical data”.
After any intervention at the equipment (e.g., repair / maintenance) the ultimate vacuum of the pump has to be checked. Only if the pump achieves
its specied ultimate vacuum is the pump’s leak rate low enough to ensure that no explosive atmospheres will occur in the interior of the equipment.
After any intervention at the vacuum sensor, the leak rate of the equipment has to be checked.
Attention: This manual is not available in all
languages of the EU. The user must not operate the device if he does not understand
this manual. In this case a technically correct translation of the complete manual has
to be available. The manual must be completely read and understood before opera-
tion of the device. All specied measures
must be applied, or else must be replaced
by equivalent measures at the user’s own
risk.
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Technical data
Type MZ 2 VARIO-SP MD 4 VARIO-SP
Maximum pumping speed
(ISO 21360; at 2400 rpm)
Ultimate vacuum (absolute)
Maximum permissible inlet
pressure (absolute)
Maximum permissible outlet
pressure (absolute)
Maximum pressure difference
between inlet and outlet
Permissible ambient temperature storage / operation
Permissible relative
atmospheric moisture during
operation (no condensation)
Maximum permissible
installation altitude above
mean sea level
cfm
(m3/h)
Torr
(mbar)
psi
(bar)
psi
(bar)
psi
(bar)
°F
(°C)
(m)
5.3 (at 700 rpm)
% 30 to 85
ft
1.7
(2.9)
(7)
14 to 140 / 50 to 104
(-10 to +60 / +10 to +40)
2.7
(4.5)
0.75 (at 700 rpm)
(1.0)
16
(1.1)
16
(1.1)
16
(1.1)
6500
(2000)
Rated motor power hp (kW) 0.21 (0.16)
No-load speed rpm 400 - 2400
Maximum permissible range
of supply voltage ( ±10% )
Attention: Observe specications of rating plate!
Maximum rated current A 7
Typical operational current
(< 7.5 Torr, at 1500 rpm)
Motor protection
Degree of protection IEC 529 IP 20
Inlet
A 2.0 2.5
hose nozzle for tubing I.D. 3/8” (hose
safe extra low voltage (SELV)*
current limitation and motor switch-off
(temperature sensor on the circuit
nozzle DN 10 mm)
24 V DC
board)
small ange
DN 16
Outlet silencer
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Type MZ 2 VARIO-SP MD 4 VARIO-SP
A-weighted emission sound
pressure level**
(uncertainty KpA : 3 dB(A))
Cable length ft (m) 6.5 (2)
dB(A) 45 50
Dimensions L x W x H
approx.
in
(mm)
6.5 x 9.2 x 7.0
(165 x 234 x 177)
10.2 x 9.2 x 7.0
(259 x 234 x 179)
Weight approx. lbs. (kg) 13.9 (6.3) 26.9 (12.2)
* The pump is designed for operation with safe extra low voltage. Accordingly only safe extra
low voltage (SELV) may be connected to the voltage supply connections.
** Measurement according to EN ISO 2151:2004 and EN ISO 3744:1995 at 1500rpm and at
ultimate vacuum with silencer at outlet.
Gas inlet temperatures
Operating condition Inlet pressure
Continuous operation
> 75 Torr (100 mbar)
(high gas load)
Permitted range of gas
temperatures at inlet
➨ 50 °F to 104 °F
(+10°C to +40°C)
Continuous operation
Short-time
(< 5 minutes)
< 75 Torr (100 mbar)
(low gas load)
< 75 Torr (100 mbar)
(low gas load)
➨ 32 °F to 140 °F*
(0°C to +60°C*)
➨ 14 °F to 176 °F*
(-10°C to +80°C*)
* if pumping potentially explosive atmospheres: 50 °F to 104 °F (+10°C to +40°C)
We reserve the right for technical modication without prior notice!
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Wetted parts
Components Wetted materials
Housing cover Aluminum alloy (AlSi12)
Head cover Aluminum alloy (AlSi12)
Diaphragm clamping disc Aluminum alloy (AlSi12)
Diaphragm FPM
Valves FPM
O-rings FPM
Small ange Stainless steel
Hose nozzle PBT
Silencer PA / PE / aluminum alloy
Fittings Aluminum anodized
Tubing PE
Seal rings (MZ 2 VARIO-SP) PVC
Seal rings (MD 4 VARIO-SP) FPM
Abbreviations
FPM: Fluoroelastomer
PA: Polyamide
PBT: Polybutylene terephthalate
PE: Polyethylene
PVC: Polyvinyl chloride
Pump parts
Position Component
1 Inlet
2 Outlet
3 Handle
4 Pump rating plate
5 Fan
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MZ 2 VARIO-SP
1
3
2
4
Ensure sufcient cooling of the pump!
MD 4 VARIO-SP
2
1
3
5
4
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Use and operation
Controlling the pump
Connecting the cable:
The control line contains four differently colored wires.
wire in control line assignment
red +24V DC (supply voltage, max 7A)
blue GND (24V)
voltage input: 0V to 10V DC or
white
(depending on the control signal input for
PWM: 5V to max. 24V
motor speed)
black GND Signal
External setting of the motor speed via PWM (factory set):
PWM (5V - max. 24V), frame frequency: 100Hz to 1.5kHz
0% to 100% PWM: Linear increase of the motor speed (0 to 2400 rpm):
Minimum motor speed 400rpm: at 17% PWM
Maximum motor speed 2400rpm: at 100% PWM
e.g., at a frame frequency of 100 Hz and 25% PWM: pulse-width 2.5 ms
NOTICE
As set at the factory, the pump is designed for operation
with a control signal; i.e., without a control signal, the pump
does not start!
To operate the pump without a control signal, change the
settings on the circuit board (see below)!
Selecting the control signal input:
(PWM / voltage / internal setting)
To select a control signal input other than the factory set one (PWM), the
control line at the terminal board has to be reconnected.
Page 27
NOTICE
page 27 of 50
Attention: Electrostatic sensitive device!
All work related to the circuit board must be
carried out in a ESD protected area or under
ESD protective measures!
MZ 2 VARIO-SP:
1. Unscrew and remove
the handle.
5
2x
2. Unscrew the cover
plate.
size 2
6x
3. Remove the cover
plate.
Reassemble the cover
plate after having completed the changes.
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MD 4 VARIO-SP:
1. Unscrew and remove
the handles.
5
4x
2. Unscrew the cover
plate.
size 1
2x
3. Remove the cover
plate.
Layout of circuit board
Reassemble the cover
plate after having completed the changes.
trimming potentiometer
terminal board (ST1A / ST1B), connection of control line
(supply voltage and control signal; see print on the circuit board)
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Terminal board
(Connection of the control line on the circuit board)
Voltage supply:
Terminal ST1A +UB GND
Supply voltage red blue
ST1A ST1B
+
UB
+
V A B
Control signal (setting the motor speed):
Terminal ST1B V+ V- PWM PWM A B
PWM - - white black - -
Voltage 0-10V DC white black - - -
+
-
++
Internal setting of
the motor speed
- - - - -
External setting of the motor speed via voltage input:
Voltage input: analog 0V .... 10V DC (max. 24V DC !)
➨ Connect the black and the white wire ac-
ST1A
ST1B
cordingly to the terminal board ST1B (see
table above).
+
UB
+
++
V AB
0V to 10V:
Linear increase of the motor speed (0 rpm (at
0V) to 2400 rpm (at 10V))
Pump will run smoothly only at motor speeds
higher than 400 rpm.
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Internal setting of the motor speed via trimming potentiometer:
+ Ensure that no control signal is applied, e.g.,
ST1A
ST1B
by removing the white and the black wires
from the terminal board ST1B.
+ Supply the pump with the required supply
+
UB
+
V AB
++
Adjusting the motor speed with the trimming potentiometer:
Turning the trimming potentiometer to the right increases the motor speed
(maximum 2400 rpm);
Turning the trimming potentiometer to the left decreases the motor speed
(minimum 400 rpm). Left stop: 0 rpm
Maximum number of motor speed settings: 50
+ To stop pump, disconnect pump from DC voltage supply.
voltage of 24V DC.
Notes regarding the motor speed
Pumping at high motor speed increases the pumping speed of the
pump (inlet pressure above approx. 7.5 Torr (10 mbar)). Ensure sufcient
cooling of the pump!
Pumping at low motor speed improves the ultimate vacuum of the pump
and increases the lifetime of diaphragms and valves!
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Installing a pump in a vacuum system
➨ If dangerous or polluting uids could be released at
the outlet, install an appropriate system to catch and
dispose of those uids.
+ Connect a gas-tight exhaust line at the pump outlet if
necessary. Always vent exhaust gases appropriately
(e.g., into a fume hood).
+ Never block or restrict the gas outlet. The exhaust line
must always be free of obstructions (no back pressure)
to ensure an unimpeded discharge of gas. The crosssection of the outlet tubing must be at least the size of
the pump’s exhaust connection.
+ Particles and dust must not enter the pump. If nec-
essary, you must install appropriate lters. You must
ensure their suitability concerning gas ow, chemical
resistance and resistance to clogging prior to use.
+ Make sure ventilation is adequate, especially if the pump
is installed in an enclosure, or if the ambient temperature is elevated. Provide external ventilation, if necessary.
• Reduce the transmission of vibration. Prevent mechanical load due to rigid pipelines. Insert elastic hoses or
exible elements as couplings between the pump and
rigid pipes.
Note: Flexible elements will compress or atten when
evacuated if not designed for use under vacuum.
• Hose connections at the pump inlet must always be
gas tight.
• A power failure may cause accidental ventilation of the
pump. If this constitutes a potential source of danger,
take appropriate safety measures.
• Check the power source and the pump’s rating plate
to be sure that the power source and the equipment
match in voltage, phase, and frequency.
Page 32
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NOTICE
Make sure ventilation is adequate to maintain recommended operating temperature. Keep a minimum distance of
2 in (5 cm) between the cooling fan and surrounding items
(e.g., housing, walls, etc.), or else install an external automatic ventilation system.
Use connecting hoses with large diameter and keep them
as short as possible to avoid ow losses. Locate the pump
as closely as possible to the application.
Always install outlet tubing descending from the pump or
provide other measures to avoid backow of condensate
towards the pump.
Use a suitable valve to isolate the pump from the vacuum
application. This is to allow the pump to warm up before
pumping condensable vapors and to clean the pump after
use before it is switched off.
When assembling, ensure vacuum-tightness. After assembly, check the whole system for leaks.
Secure hose connections at the pump appropriately, e.g.,
with hose clamps, to protect against accidental detachment.
During operation
➨ Vent and dispose of potentially dangerous gases or
vapors at the outlet of the pump appropriately.
+ Due to the high compression ratio, the pump might
generate overpressure at the outlet. Check pressure
compatibility with system components (e.g., exhaust
tubing or exhaust valve) at the outlet.
+ Maximum ambient temperature: 104 °F (40 °C)
Check the maximum temperatures, if installing the
pump in a cabinet or a housing. Make sure ventilation
is adequate, especially if the ambient temperature is
elevated.
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+ Operation with silencer at the outlet: Operating the
pump at a high inlet pressure or pumping dusty gases for a long time may cause clogging of the silencer.
Check the silencer regularly and replace if necessary,
or install a hose nozzle (order no. 639758) with clamping ring (order no. 639729) instead.
• If the pump is installed at an altitude of more than 6500
ft (2000 m) above mean sea level, check compatibility
with applicable safety requirements, and adopt suitable measures. There is a risk of the motor overheat-
ing due to insufcient cooling.
• Check compatibility with the maximally permitted
pressure at outlet and the maximum pressure dif-
NOTICE
ference between inlet and outlet ports.
Do not start the pump if the pressure difference between
inlet and outlet ports exceeds max. 16.0 psi (1.1 bar).
Attempts to start the pump at higher pressure difference
may cause stalling and damage of the motor.
Prevent internal condensation, transfer of liquids or dust.
The diaphragms and valves will be damaged, if liquids are
pumped in signicant amounts.
Check the pump regularly for external soiling and deposits. Clean the pump if necessary to avoid an increase of
the pump’s operating temperature.
A temperature sensor at the circuit board protects the motor: Current limitation in case the temperature at the circuit
board raises above 158°F (70°C). At very high temperatures the pump is switched off.
Note: Only manual reset is possible. Disconnect the pump
from the power source. Identify and eliminate the cause of
failure.
Avoid overheating (e.g., due to hot process gases).
A warm up period (approximately 15 min.) is required to
ensure that the rated ultimate vacuum and pumping speed
are attained.
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Shutdown & storage
The pump can be switched off under vacuum.
NOTICE
Short-term:
Has the pump been exposed to condensate?
Allow the pump to continue to run at atmospheric pressure for a few minutes.
Has the pump been exposed to media which may damage
the pump materials or form deposits?
Check and clean pump heads if necessary.
Long-term:
Take measures as described above regarding short-term
shutdown.
Separate the pump from the application.
Close inlet and outlet ports (e.g., with transport caps).
Store the pump under dry conditions.
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Accessories
Digital vacuum gauge DVR 2 .....................682902
Vacuum hose (caoutchouc) I.D. 3/8” (10 mm ID) ......................................686002
Antistatic PTFE tubing KF 16 (1000 mm) ...................................................686031
Tubing, stainless steel KF 16 (1000 mm) ...................................................673336
For additional accessories such as vacuum valves, small-ange components, vacuum gauges or vacuum controllers, refer to www.vacuubrand.com
Page 36
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Troubleshooting
Fault Possible cause Remedy
❑
Pump does not
start or stops immediately.
❑
Pump does not
achieve its ultimate
vacuum or usual
pumping speed.
➨
Supply voltage is missing or is too low?
➨
Control signal for motor
speed is missing?
➨
Overpressure in outlet
line?
➨
Motor overloaded?
➨
Centring ring at small
ange connection not
correctly positioned, or
leak in the pipeline or
vacuum system?
✔
Check or connect electrical supply voltage.
✔
Check control signal.
✔
Remove blockage in line,
open valve, or reduce
overpressure.
✔
Allow motor to cool down,
identify and eliminate
cause of failure. Manual
reset is necessary. Separate pump from supply
voltage.
✔
Check pump directly connect vacuum gauge
directly at pump inlet then check connection,
pipeline and vacuum
system if necessary.
➨
Long, narrow vacuum
line?
➨
Pump has been exposed to condensate?
➨
Deposits have been
formed inside the
pump?
➨
Diaphragms or valves
damaged?
➨
Outgassing substances
or vapor generated in
the process?
➨
Pump temperature
too high (motor speed
reduced or pump
switched off)?
✔
Use lines with larger diameter, length as short as
possible.
✔
Allow pump to run for
some minutes with atmospheric pressure at the
inlet to purge.
✔
Clean and inspect the
pump heads.
✔
Replace diaphragms and/
or valves.
✔
Check process parameters.
✔
Ensure sufcient cooling
of the pump or reduce
inlet pressure. Separate
pump from supply voltage if the pump has been
switched off.
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Fault Possible cause Remedy
❑
Pump too noisy.
❑
Pump seized.
➨
Atmospheric or high
pressure at the pump
inlet?
➨
Diaphragm crack or
diaphragm clamping
disc loose?
➨
Other than above mentioned causes?
✔
Connect hose or silencer
to pump outlet. Be careful
not to cause outlet overpressure, especially with
condensable vapors.
✔
Perform maintenance.
✔
Contact local distributor.
✔
Contact local distributor.
➨ A service manual with exploded view drawings, spare parts list and
directions for repair is available on request.
+ The service manual is intended for trained service people only.
Page 38
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Replacing diaphragms and valves
+ Please read section ”Replacing diaphragms and valves” com-
pletely before starting maintenance.
The pictures may show other versions of pumps. This does not change
the method of replacing diaphragms and valves.
➨ Never operate the pump if covers or other parts of
the pump are disassembled.
➨ Disconnect the pump from the power supply and
wait two minutes before starting maintenance to al-
low the capacitors to discharge.
➨ Ensure that the pump cannot be operated accidentally.
➨ Note: The pump might be contaminated with the pro-
cess chemicals that have been pumped during operation. Ensure that the pump is decontaminated before
maintenance.
➨ Avoid the release of pollutants.
+ Never operate a defective or damaged pump.
+ Take adequate precautions to protect people from the
effects of dangerous substances that may have contaminated the pump and may be released upon disassembly. Ensure that the maintenance technician is
familiar with the safety procedures which relate to the
products processed by the pumping system.
Use appropriate protective clothing, safety goggles
NOTICE
and protective gloves.
+ Allow sufcient cooling of the pump before starting
maintenance.
+ Vent the pump and isolate it from the vacuum sys-
tem before you start maintenance.
Ensure that maintenance is done only by suitably
trained and supervised technicians.
Page 39
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The valves and diaphragms are wear parts. If the rated
ultimate vacuum is no longer achieved or in case of increased noise level, the pump interior, the diaphragms
and the valves must be cleaned and the diaphragms and
valves must be checked for cracks or other damage.
All bearings are encapsulated and are lled with long-life
lubricant. Under normal operating conditions, the drive
system is maintenance free.
In demanding circumstances, it may be efcient to check
and clean the pump heads on a regular basis. In normal
use, the lifetime of the diaphragms and valves is typically
15,000 operating hours (at 1500 rpm). Operating the pump
at reduced speed will increase the lifetime accordingly.
- Prevent internal condensation, transfer of liquids or
dust. The diaphragms and valves will be damaged if
liquid is pumped in signicant amount.
- Carry out maintenance frequently if the pump is exposed to corrosive media or in case of deposits.
- Regular maintenance will improve the lifetime of the
pump and also protect both users and the environment.
Service kit for MD 4 VARIO-SP (diaphragms, valves, O-rings)....................696834
Service kit for MZ 2 VARIO-SP (diaphragms, valves) .................................. 696835
O-ring 28 x 1.5 (4x for MZ 2 VARIO-SP) .....................................................637090
Diaphragm key (w/f 66) ..............................................................................636554
Tools required (metric):
- Diaphragm key width 66 mm
- Open end wrench width 17 / 20 mm
- 5 mm wide Allen key
Page 40
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Cleaning and inspecting the pump heads
➨ Use an open end wrench (width 17) to re-
move the screw-in tting and the connecting
tube from the pump head. In case, steady
with a second open end wrench (width 20).
View of the disassembled pump head parts
C
B G
D
E
F
HA
JI
Pump head parts:
A: Housing cover
B: O-rings
C: Valves
D: Head cover
E: Diaphragm clamping disc
with square head screw
F: Diaphragm
G: Diaphragm support disc
H: Washer
I: Connecting rod
J: Housing
Page 41
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➨ Position the pump on the side. Support the pump appropriately.
+ Service only one side of the pump at a time to avoid the mixing of
parts.
➨ Disassemble the housing cover (A) to check
the valves (C).
➨ Unscrew four Allen screws with a 5mm wide
Allen key. Remove the housing cover (A) together with head cover (D), valves (C) and
O-rings (B), if applicable.
+ Never use a pointed or sharp-edged tool to remove parts (e.g., screw-
driver). We recommend to use a rubber mallet or compressed air (to
be blown carefully into port).
➨ Remove the head cover (D) carefully from the housing cover (A). Note
position and alignment of valves (C). Remove the valves.
+ Replace valves or O-rings if necessary.
+ Use petroleum ether or other industrial solvent to remove deposits. Do
not inhale vapors.
Replacing the diaphragm
+ Check diaphragm (F) for damage and re-
place if necessary.
➨ Lift diaphragm carefully sidewise.
+ Never use a pointed or sharp-edged tool to
E
F
lift the diaphragm.
➨ Use the diaphragm key to grip the diaphragm
support disc (G) below the diaphragm.
➨ Unscrew diaphragm support disc (G) with diaphragm (F) and dia-
phragm clamping disc (E).
➨ Check for washers (H) between the diaphragm support disc (G) and
the connecting rod (I). Do not mix the washers from the different pump
heads, since these are set at the factory to ensure proper pump performance. Make sure that the original number is reassembled at the
individual pump head.
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+ Too few washers: The pump will not attain vacuum specication. Too
many washers: Diaphragm clamping disc will hit head cover, causing
noisy operation and possibly causing the pump to seize up.
+ If the old diaphragm is difcult to separate from the diaphragm support
disc, immerse assembly in naphtha or petroleum ether. Do not inhale
vapors!
F
➨ Position new diaphragm (F) between dia-
phragm clamping disc with square head
screw (E) and diaphragm support disc (G).
+ Note: This is a double diaphragm consist-
E
G
ing of two single diaphragms! Put the two
diaphragms together with the printed sides
outwards.
+ Make sure that the square head screw of the diaphragm clamping disc
is correctly seated in the guide hole of the diaphragm support disc.
➨ Lift the diaphragm at the side. Place the diaphragm carefully together
with diaphragm clamping disc and diaphragm support disc in the diaphragm key.
+ Avoid damage of the diaphragm: Do not excessively bend or crease
the diaphragm.
+ Assemble the original number of washers
(H) between diaphragm support disc (G)
and connecting rod (I).
➨ Screw diaphragm clamping disc (E), dia-
E
F
phragm (F), diaphragm support disc (G),
and washers (H) to connecting rod (I).
➨ Optimum torque for the diaphragm support disc: 4.4 ft.lbf (6 Nm), it is
recommended to use a torque wrench. Attach torque wrench to diaphragm key (hexagonal bolt 6 mm wide).
Note: Never use the diaphragm key with any additional tools like tongs
or Allen keys without appropriate torque limitation.
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Assembling the pump heads
➨ Bring the diaphragms (F) into a position, in
which they are in contact with the housing
(J) and centered with respect to the bore.
➨ Put on head cover (D).
+ Pay attention to the correct orientation of the
head covers: Align the nib at the head cover
(D) with the notch of the housing cover (A).
+ Make sure that the diaphragm stays cen-
(2) (1)
tered with respect to the bore so that it will
become clamped uniformly between housing (J) and head cover (D).
➨ Put the valves (C) and O-rings (B) in place. See gure for the correct
position of the valves:
Inlet side of pump head (1): The valve tongue points at the kidney-
shaped orice in the valve seat.
Outlet side of pump head (2): The valve is oriented the same direction
as the valve at the inlet side.
➨ Put on housing cover (A).
+ If it is not possible to position the housing cover, check the head cover
for correct orientation. The nib at the head cover has to lock into the
notch of the housing cover.
➨ Screw in the Allen head screws at the head
covers diagonally at rst slightly with a 5
mm wide Allen key, then tighten.
+ Recommended torque: 8.9 ft.lbf (12 Nm).
Replace diaphragms and valves of the opposite side of
the pump in the same way!
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Individual performance check of a pump head:
Check by measuring the pressure at the inlet port of the individual head:
Use a suitable vacuum gauge (e.g., DVR 2, cat. no.: 682902), make sure
that it is correctly calibrated, and measure the pressure at the inlet port.
A vacuum of less than 110 mbar should be indicated.
+ If the reading is higher, recheck the pump chamber and make sure
that the valves and the diaphragms are correctly seated (diaphragms
concentric with bore).
Assembling ttings
➨ Use an open end wrench (width 17) to as-
semble the screw-in ttings with connection
hose to the pump heads. In case, steady
with an open end wrench (width 20).
Checking the ultimate vacuum
➨ After any intervention at the equipment (e.g., repair / maintenance)
the ultimate vacuum of the pump has to be checked. Only if the pump
achieves its specied ultimate vacuum, the pump’s leak rate is low
enough to ensure that no explosive atmospheres will occur in the interior of the equipment.
If the pump does not achieve the ultimate vacuum:
- Whenever the diaphragms and valves have been replaced, a break-in
period of several hours is required before the pump achieves its ultimate vacuum.
- In case of an unusual noise, switch off pump immediately and check
clamping disc positions.
If the specied ultimate vacuum is not achieved, and if this does not
change after the break-in period:
Check hose connectors at pump heads for leaks. If necessary recheck
valve seats and pump chambers.
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Repair - Maintenance - Return - Calibration
IMPORTANT
Every employer (user) is held responsible for the health
and safety of his employees. This also applies to service
personnel performing repair, maintenance, return or calibration.
The health and safety clearance form informs the contractor about any possible contamination of the device and
forms the basis for the risk assessment.
In case of devices which have been in contact with
biological substances of risk level 2 contact the VACUUBRAND service absolutely before dispatching the
device. These devices have to be completely disassembled and decontaminated by the user prior to
shipment. Do not return devices which have been
in contact biological substances of risk level 3 or
4. These devices cannot be checked, maintained or re-
paired. Also decontaminated devices must not returned to
VACUUBRAND due to a residual risk.
The same conditions apply to on-site work.
No repair, maintenance, return or calibration is possible unless the correctly completed health and safety
clearance form is returned. Devices sent are rejected
if applicable. Send a completed copy of the health and
safety clearance form to us in advance. The declaration
must arrive before the equipment. Enclose a second completed copy with the product.
Remove all components from the device that are no original VACUUBRAND components. VACUUBRAND will not
be responsible for lost or damaged components that are
no original components.
Drain the device completely of uids and residues.
Decontaminate the device. Close all openings airtight
especially if using substances hazardous to health.
To expedite repair and to reduce costs, please enclose a
detailed description of the problem and the product’s operating conditions with every product returned.
Page 46
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If you do not wish a repair on the basis of our quotation,
the device may be returned to you disassembled and at
your expense.
In many cases, the components must be cleaned in the
factory prior to repair.
For cleaning we use an environmentally friendly water
based process. Unfortunately the combined attack of elevated temperature, cleaning agent, ultrasonic treatment
and mechanical stress (from pressurised water) may result in damage to the paint. Please mark in the health and
safety clearance form if you wish a repaint at your expense just in case such a damage should occur. We will
also replace parts for cosmetic reasons at your request
and at your expense.
Before returning the device
Pack the device properly, if necessary, please order original packaging materials at your costs.
Mark the package completely
Enclose the completed health and safety clearance
form.
Notify the carrier of any possible contamination if required.
Scrapping and waste disposal
Dispose of the equipment and any components removed
from it safely in accordance with all local and national
safety and environmental requirements. Particular care
must be taken with components and waste oil which have
been contaminated with dangerous substances from your
processes. Do not incinerate uoroelastomer seals and
O-rings. You may authorize us to dispose of the equipment at your expense. Otherwise we return the device at
your expense.
Page 47
Warranty
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VACUUBRAND shall be liable for insuring that this product, including any agreed installation, has been free of defects at the time of the transfer of risk.
VACUUBRAND shall not be liable for the consequences
of improper handling, use, servicing or operation of this
product or the consequences of normal wear and tear of
wearing parts such as diaphragms, seals, valves, vanes,
condensers, oil and the breakage of glass or ceramic
parts, for the consequences of chemical, electrochemical
or electrical inuences or the failure to follow the instructions in this manual.
Claims for defects against VACUUBRAND shall be limited
to one year from delivery. The same shall apply to claims
for damages irrespective of legal grounds.
For further information on general terms and conditions
refer to www.vacuubrand.com.
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Health and safety clearance form
Health and safety clearance form
1. Device (Model): ..................................................................................................................................................
2. Serial no.: ...........................................................................................................................................................
3. Reason for return / malfunction: .........................................................................................................................
............................................................................................................................................................................
4. Has the device been used in a copper process step (e.g., semiconductor production): ☐ yes ☐ no
5. Substances (gases, liquids, solids, biological material, e. g. bacteria, viruses) in contact with the device /
which have been pumped:
............................................................................................................................................................................
............................................................................................................................................................................
............................................................................................................................................................................
............................................................................................................................................................................
6. Risk level of the used biological material:
* Contact the VACUUBRAND service absolutely before dispatching the device.
** Devices which have been in contact with biological substances of risk level 3 or 4 cannot be checked, main-
tained or repaired. Also decontaminated devices must not returned to VACUUBRAND due to a residual risk.
☐ none ☐ 1 ☐ 2* ☐ 3** ☐ 4**
7. Radioactive contamination:
☐ yes ☐ no
8. Prior to return to the factory the device has been decontaminated: ☐ yes ☐ no
Descriptionofthedecontaminationmethodandthetest/vericationprocedure:
............................................................................................................................................................................
............................................................................................................................................................................
9. All parts of the device are free of hazardous, harmful substances: ☐ yes ☐ no
10. Protective measures required for service staff:
............................................................................................................................................................................
11. If the paint is damaged, we wish a repaint or a replacement of parts for reason of appearance
(repaint and replacement at customer’s expense): ☐ yes ☐ no
12. Legally binding declaration
We assure for the returned device that all substances, which have been in contact with the device are listed in
section 5 and that the information is complete and that we have not withheld any information. We declare that all
measures - where applicable - have been taken listed in section “Repair - Maintenance - Return - Calibration”.
By our signature below, we acknowledge that we accept liability for any damage caused by providing incomplete or incorrect information and that we shall indemnify VACUUBRAND from any claims as regards damages
from third parties. We are aware that as expressed in § 823 BGB (Public Law Code of Germany) we are directly
liable for injuries or damages suffered by third parties, particularly VACUUBRAND employees occupied with
handling/repairing the product. Shipping of the device must take place according to regulations.
Name: .................................................................. Signature: ...........................................................................
Job title: ................................................................... Company’s seal:
Date: ........................................................................
Release for repair grant by VACUUBRAND (date / signature): ...................................................................................................................
Protective measures: ☐ Protective gloves, safety goggles ☐ Hood ☐ External cleaning
VACUUBRAND GMBH + CO KG
Alfred-Zippe-Straße 4
97877 Wertheim - Germany
T +49 9342 808-5660 F +49 9342 808-5666
E-Mail: [email protected]
www.vacuubrand.com
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EG-Konformitätserklärung für Maschinen
EC Declaration of Conformity of the Machinery
Déclaration CE de conformité des machines
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
2004/108/EG, 94/9/EG: gültig bis / valid until / valable jusqu‘au 19.04.2016
2014/30/EU, 2014/34/EU: gültig ab / valid from / valable à partir du 20.04.2016
2011/65/EU
Membranvakuumpumpe / Diaphragm vacuum pump / Pompe à membrane:
Typ / Type / Type: MZ 2 VARIO-SP / MD 4 VARIO-SP
Artikelnummer / Order number / Numéro d’article: 720000 / 720100, 2613431
Seriennummer / Serial number / Numéro de série: Siehe Typenschild / See rating plate / Voir plaque
signalétique
Angewandte harmonisierte Normen / Harmonized standards applied / Normes harmonisées utilisées:
DIN EN ISO 12100:2011, DIN EN 61010-1:2011, IEC 61010-1:2010 (Ed. 3), DIN EN 1012-2:2011,
DIN EN 61326-1:2013, DIN EN 1127-1:2011, DIN EN 13463-1:2009, 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 · Alfred-Zippe-Str. 4 · 97877 Wertheim · Germany
Wertheim, 18.04.2016
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ort, Datum / place, date / lieu, date
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
(Dr. F. Gitmans)
Geschäftsführer / Managing director / Gérant
ppa.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(Dr. J. Dirscherl)
Technischer Leiter / Technical Director / Directeur technique
VACUUBRAND GMBH + CO KG
Alfred-Zippe-Str. 4 · 97877 Wertheim
T +49 9342 808-0 · F +49 9342 808-5555
[email protected]
www.vacuubrand.com
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Disclaimer: Our technical literature is only intended to inform our customer. The applicability of general empirical values and results obtained
under lab conditions to your specic operations depends on a number of
factors beyond our control. It is, therefore, strictly the users’ responsibil-
ity to very carefully check the application of these data to their specic
requirements. No claims arising from the information provided in this literature will, consequently, be entertained.
Alfred-Zippe-Str. 4 · 97877 Wertheim / Germany
T +49 9342 808-0 · F +49 9342 808-5555
[email protected] · www.vacuubrand.com
VACUUBRAND GMBH + CO KG
- Technology for Vacuum Systems -
© 2018 VACUUBRAND GMBH + CO KG Printed in Germany
Manual-no.: 999108 / 04/18/2016
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