vacuubrand MD 4C VARIO select User manual

page 1 of 68
MD 4C EX VARIO
MV 10C EX VARIO
MD 4C EX VARIO + AK + EK
MV 10C EX VARIO + AK + EK
`
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully
the validity of this document with respect to his product. manual-no.: 999290 / 12/12/2016
VARIO chemistry diaphragm pumps
with
ATEX conformity
Technology for Vacuum Systems
Instructions for use

page 2 of 68
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully
the validity of this document with respect to his product. manual-no.: 999290 / 12/12/2016
Dear customer,
Your VACUUBRAND diaphragm pump shall support you at your work for a long time without any trouble
and with full load output. Thanks to our large practical experience we attained much information how you
could add to an efcient application and to personal safety. Please read these instructions for use prior
to the initial start-up of your pump.
VACUUBRAND diaphragm pumps are the result of many years of experience in construction and practi-
cal operation of these pumps combined with the latest results in material and manufacturing technol-
ogy.
Our quality maxim is the ”zero fault principle”:
Every delivered diaphragm pump is tested extensively including an endurance run of 14 hours. Due to
this endurance run, also faults, which occur rarely, are reported an can be corrected. Every single dia-
phragm pump is tested on achievement of the specication after the endurance run.
Every VACUUBRAND pump leaving our factory achieves the specication. We feel obliged to
this high quality standard.
We are aware that the vacuum pump should not draw a part of the real work and we hope to contribute
with our products to an effective and trouble-free realisation of your work.
Yours
VACUUBRAND GMBH + CO KG
After sales service: Contact your local dealer or call [phone].
Trademark index:
VACUU•LAN® (US-Reg.No 3,704,401), VACUU•BUS®, VACUU•CONTROL®, Peltronic®, VARIO®(US-
Reg.No 3,833,788), VARIO®-SP, VACUUBRAND®(US-Reg.No 3,733,388) and also the shown com-
pany logos are trademarks of VACUUBRAND GMBH + CO KG in Germany and/or other countries.
Attention: The manual of the offered device with ATEX approval
is available in German, English and French (DVR 3: also Dutch).
The user is only permitted to operate the device if he under-
stands one of these languages or a technically correct transla-
tion of the complete manual. The manual must be completely
read and understood before operation of the device. All speci-
ed measures must be applied, or else must be replaced by
equivalent measures at the user’s own risk.
The device has an ATEX approval according to EC-directives
and standards. Users outside of the European Community
must check national regulations for hazardous areas.

page 3 of 68
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully
the validity of this document with respect to his product. manual-no.: 999290 / 12/12/2016
D, A, CH, B, L
GB, IRL
F, B, L
BG
Achtung: Die Betriebsanleitung des angebotenen Geräts mit ATEX-Zulassung ist in
Deutsch, Englisch und Französisch (DVR 3: auch Niederländisch) verfügbar. Der
Anwender darf das Gerät nur dann in Betrieb nehmen, wenn er eine dieser Sprachen
oder eine fachlich korrekte Übersetzung der vollständigen Anleitung versteht. Die Be-
triebsanleitung muss vor Inbetriebnahme des Geräts vollständig gelesen und verstan-
den werden, und alle geforderten Maßnahmen müssen eingehalten werden.
Das Gerät verfügt über eine ATEX-Zulassung gemäß EU-Richtlinien und Normen.
Anwender außerhalb der EU müssen die nationalen EX-Vorschriften prüfen.
Attention: The manual of the o󰘯ered device with ATEX approval is available in Ger-
man, English and French (DVR 3: also Dutch). The user is only permitted to operate
the device if he understands one of these languages or a technically correct transla-
tion of the complete manual. The manual must be completely read and understood
before operation of the device and all required measures must be applied.
The device has an ATEX approval according to EC-directives and standards. Users
outside of the European Community must check national regulations for hazardous
areas.
Attention : le manuel d’utilisation de l’appareil ATEX proposé est disponible en alle-
mand, anglais et français (en néerlandais également pour le DVR 3). L’utilisateur est
autorisé à utiliser l’appareil uniquement s’il comprend l’une de ces langues ou une tra-
duction techniquement correcte du manuel complet. Le manuel doit être lu et compris
entièrement avant l’utilisation de l’appareil et toutes les mesures requises doivent être
appliquées. L’appareil a une certi󰘰cation ATEX suivant les directives CE et les stan-
dards. Les utilisateurs en dehors de la communauté européenne doivent véri󰘰er les
normes locales pour les zones dangereuses.
Внимание: Ръководството за работа с предлаганото устройство, което е с ATEX
одобрение е достъпно на следните езици: немски, английски и френски език
(DVR 3: също холандски). Потребителят има право да работи с устройството
само ако разбира много добре един от тези езици или ползва технически
правилен превод на пълното ръководство. Ръководството трябва да бъде
изцяло прочетено и разбрано преди да се пристъпи към работа с устройството,
а всички необходими мерки трябва да бъдат спазвани. Устройството има ATEX
одобрение съгласно EC - директивите и стандартите. Потребители извън
Европейската общност трябва да се съобразят със съoтветните национални
разпоредби за опасни зони.
注意：所提供的ATEX批准设备的操作说明书有德文版、英文版和法文版（DVR 3也有
荷兰语版）。
客户仅允许懂得其中一种语言或者整本说明书的正确技术翻译的情况下，才可以操作该
设备。该说明书在操作前必须完全阅读且能够理解，所有需要的测试必须采用。
该装置根据EC指令和标准有ATEX批准。欧盟以外区域的客户必须核查各自国家针对危
险区域的国家标准。
CN

page 4 of 68
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully
the validity of this document with respect to his product. manual-no.: 999290 / 12/12/2016
ES
FI
CZ
DK
EE
Pozor: Příručka pro nabízené zařízení s osvědčením ATEX je k dispozici v němčině,
angličtině a francouzštině (DVR 3: i v holandštině).Uživatel smí dané zařízení
používat pouze, pokud zná jeden z těchto jazyků nebo má k dispozici technicky
správný překlad kompletního manuálu. Příručku musí kompletně přečíst a porozumět
jí před zahájením provozu zařízení a musí zajistit uplatnění všech požadovaných
opatření.
Přístroj má schválení ATEX podle směrnic a norem EU. Uživatelé mimo území Ev-
ropského společenství, musí ověřit vnitrostátní předpisy pro prostředí s nebezpečím
výbuchu.
Bemærk: Betjeningsvejledningen til enheden ”med ATEX-godkendelse” er til rådighed
på Tysk, Engelsk og Fransk (DVR 3: også på Hollandsk)
Brugeren har kun tilladelse til at betjene enheden hvis, han/hun forstår et af de disse
sprog eller har en teknisk korrekt oversættelse af hele manualen.
Betjeningsvejledningen skal læses og forstås før enheden kan anvendes og betjenes.
Alle de krævede foranstaltninger skal overholdes.
Enheden har en ATEX godkendt certi󰘰cering ifølge EF- direktiver og standarder.
Brugere uden for Det Europæiske Fællesskab skal kontrollere nationale regler for
anvendelse.
Tähelepanu: käsiraamat pakkutud ATEX-i poolt heakskiitetud seadmele on saadaval
saksa, inglise ja prantsuse keeles (DVR 3: puhul ka Hollandi keeles). Kasutajal on lu-
batud seda seadet kasutada ainult juhul, kui ta saab aru ühest nendest keeltest või on
olemas tehniliselt korrektne tõlge kogu juhendist. Juhend peab olema täielikult loetud
ja mõistetud enne seadmega töötamist ning kõiki vajalike meetmeid tuleb rakendada.
Seadmel on ATEX-i heakskiit vastavalt EÜ-direktiividele ja standarditele. Kasutajad
väljaspool Euroopa Liitu peavad kontrollima riiklikuid regulatsioone ohtlikke piirkonda-
de kohta.
Atención: Las instrucciones de funcionamiento del equipo ofrecido con homologación
ATEX están disponibles en Alemán, Inglés y Francés (DVR 3: también en holandés).
El usuario deberá poner en funcionamiento el equipo únicamente si comprende uno
de estos idiomas o una correcta traducción técnica del manual completo en el idioma
que comprenda. Las instrucciones deben ser leídas y entendidas antes de utilizar
el equipo y deben cumplirse todas las medidas necesarias. El equipo posee una
aprobación de conformidad ATEX con las directivas y normas de la UE. Los usuarios
fuera de la UE deben veri󰘰car las normativas nacionales de protección contra explo-
siones.
Huomio! Tuotteen käyttöohje, joka sisältää ATEX -todistuksen, on saatavilla saksaksi,
englanniksi ja ranskaksi ( DVR 3 myös hollanniksi ). Laitetta saa käyttää vain henkilö,
joka ymmärtää jotain em. kielistä tai hänellä on teknisesti tarkka käännös alkuperäise-
stä käyttöohjeesta. Käyttäjän tulee lukea ja ymmärtää käyttöohje kokonaisuudessaan
sekä noudattaa siinä mainittuja toimenpiteitä ennen laitteen käyttöä.
Tuotteella on ATEX hyväksyntä EU-direktiivien ja standardien mukaisesti. Jos laitetta
käytetään EU:n ulkopuolella, tulee noudattaa paikallisia määräyksiä.

page 5 of 68
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the validity of this document with respect to his product. manual-no.: 999290 / 12/12/2016
GR
HR
HU
IT
JP
Προσοχή: Το εγχειρίδιο του προσφερόμενου οργάνου με πιστοποίηση ATEX είναι
διαθέσιμο στα Γερμανικά, Αγγλικά, Γαλλικά ( DVR3: επίσης Ολλανδικά ). Ο χρήστης
μπορεί να λειτουργεί το μηχάνημα εφόσον καταλαβαίνει μία από τις συγκεκριμένες
γλώσσες ή μία τεχνικά σωστή μετάφραση του πλήρους εγχειριδίου. Το εγχειρίδιο
θα πρέπει να αναγνωσθεί πλήρως και να γίνει κατανοητό πριν την λειτουργία του
μηχανήματος και θα πρέπει να εφαρμόζονται όλα τα απαιτούμενα μέτρα. Το όργανο
έχει πιστοποίηση ATEX σύμφωνα με τις οδηγίες και τα στάνταρ της Ευρωπαϊκής
Ένωσης (Ε.Ε.). Χρήστες εκτός Ε.Ε. πρέπει να ελέγξουν τους εθνικούς τους
κανονισμούς για τις τοποθεσίες επικινδυνότητας.
Pažnja: Upute o rukovanju ponuđenih uređaja sa ATEX odobrenjem su dostupne na
njemačkom, engleskom i francuskom jeziku (DVR 3: također i na holandskom). Koris-
niku je dopušteno rukovanje uređajem ako razumije jedan od ovih jezika ili ako ima
prijevod tehničke dokumentacije. Uputa za rukovanje prije korištenja uređaja mora se
pročitati, razumjeti te je potrebno primijeniti sve nužne mjere za ispravno rukovanje.
Uređaji imaju ATEX odobrenje prema smjernicama Europske unije i važećim standar-
dima. Korisnici izvan Europske unije moraju provjeriti nacionalnu regulativu vezanu uz
rad sa potencijalno opasnim supstancama te uređajima koji se koriste u tom potenci-
jalno opasnom području rada.
Figyelem: a megajánlott ATEX minősítéssel rendelkező készülék kézikönyve néme-
tül, angolul és franciául érhető el (a DVR 3 hollandul is). Kérjük, csak akkor használja
a berendezést, ha tökéletesen ért ezeken a nyelveken, vagy rendelkezésére áll egy
technikailag megfelelő fordítás a teljes kézikönyvről. A kézikönyvet a készülék hasz-
nálatba vétele előtt kérjük végigolvasni, és betartani a benne foglaltakat.
A készülék az EC-irányelveknek és előírásoknak megfelelő ATEX minősítéssel
rendelkezik. Az Európai Közösségen kívüli vásárlók ellenőrizzék az adott országban
érvényes veszélyes helyiségekre vonatkozó előírásokat.
Attenzione: il manuale della strumentazione con certi󰘰cazione ATEX o󰘯erta è dis-
ponibile in Tedesco, Inglese e Francese. (DVR 3: anche in Olandese). L’utilizzatore
può utilizzare l’apparecchiatura solo se capisce una di queste tre lingue o una tradu-
zione tecnicamente corretta dell’intero manuale. Prima di utilizzare l’apparecchiatura
il manuale deve essere completamente letto e tutte le indicazioni devono essere
seguite. La strumentazione ha un’approvazione ATEX in conformità agli standards ed
alle direttive EC. Al di fuori della Comunità Europea gli utilizzatori devono controllare
la regolamentazione nazionale per le aree pericolose.
注意：ATEX認証された製品に付きましては、ドイツ語、英語、フランス語（DVR 3
はオランダ語も）の取扱説明書がございます。ユーザーはこれらの言語が理解できる
か、技術的に正しい完全なマニュアルがある場合のみ、装置を作動することが許さ
れます。製品使用前にマニュアルは全て読み、理解しなければなりません。また、
全ての要求される対策を講じなければなりません。
この製品はECの指令及び規格により承認されています。EC外のユーザーに付きまし
ては、自国の危険場所に関する規定をご確認ください。

page 6 of 68
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the validity of this document with respect to his product. manual-no.: 999290 / 12/12/2016
LT
LV
NL
PL
KR
주의 : ATEX 인증을 받은 본 장비의 매뉴얼은 독어, 영어, 불어 (DVR3 는 네델란드어
도 포함) 로 되어있습니다. 이들 언어중 하나를 독해 가능하거나 혹은 이 매뉴얼을 기술
적으로 완벽하게 이해한 사용자만이 이 장비를 구동해야 합니다. 장비를 구동하기 전
에 매뉴얼을 모두 읽고 이해하여야 하며, 모든 필수 요건들을 지켜야합니다.
장비는 ATEX 인증을 받았으며 이 인증은 EC의 지침과 규격에 따른 것입니다. 유럽공
동체 이외 지역의 사용자들은 반드시 방폭에 대한 국가규정을 확인해야 합니다.
Dėmesio: Pasiūlyto prietaiso vartotojo instrukcija yra patvirtinta ATEX ir galima
vokiečių, anglų bei prancūzų kalbomis (DVR3: taip pat olandų kalba). Teisę dirbti su
prietaisu turi tik vartotojas, suprantantis bent vieną iš minėtų užsienio kalbų arba turin-
tis techniškai taisyklingą vartotojo instrukciją. Prieš pradedant dirbti su prietaisu priva-
loma perskaityti ir suprasti vartotojo instrukciją bei laikytis visų nurodytų reikalavimų.
Prietaisas turi ATEX patvirtinimą remiantis EC-direktyvomis ir standartais. Vartotojai,
nepriklausantys Europos Sąjungai, turi pasitikrinti jų šalyje galiojančius teisės aktus/
reglamentus dėl pavojingų zonų.
Uzmanību: Piedāvātās iekārtas ar ATEX apstiprinājumu lietošanas instrukcija ir piee-
jama vācu, angļu un franču valodā (DVR 3: arī holandiešu valodā).
Lietotājam ir atļauts darboties ar šo iekārtu tikai tajā gadījuma, ja viņš saprot vismaz
vienu no augstāk minētām valodām vai ja ir nodrošināts pilns un tehniski pareizs
lietošanas instrukcijas tulkojums.
Pirms iekārtas darbināšanas lietošanas instrukciju ir jāizlasa un jāizprot, kā arī
jāpiemēro visas nepieciešamās darbības.
Iekārta ir ATEX apstiprināta, atbilstoši EK direktīvām un standartiem. Ārpus Eiropas
Kopienas valstu lietotājiem ir jāpārbauda valsts nacionālos likumus par bīstamām
zonām.
Attentie: de handleiding voor het geo󰘯reerde apparaat met ATEX goedkeuring is
beschikbaar in het Duits, Engels en Frans ( en voor de DVR 3 ook in het Nederlands).
Het is de gebruiker alleen toegestaan om het apparaat te bedienen indien hij/zij een
van deze talen begrijpt of indien er een technisch correcte vertaling van de complete
handleiding beschikbaar is. De handleiding dient in zijn geheel gelezen en begrepen
te worden en alle nodige maatregelen dienen geregeld te zijn alvorens het apparaat
bedient mag worden.
Het apparaat heeft een ATEX goedkeuring conform de EG-richtlijn en standaarden.
Gebruikers buiten the Europese Gemeenschap moeten de nationale richtlijnen voor
gevaarlijk locaties controleren.
Uwaga: Instrukcja oferowanego urządzenia z dopuszczeniem ATEX jest dostępny
w języku niemieckim, angielskim i francuskim (DVR 3: również holenderskim).
Użytkownik może korzystać z urządzenia tylko wtedy, gdy zapoznał się z instrukcją
w jednym z podanych języków, lub poprawnym technicznym tłumaczeniem pełnej
instrukcji. Przed użyciem instrukcja obsługi musi być przeczytana i zrozumiana, oraz
wszystkie wymagane środki bezpieczeństwa muszą być przestrzegane.
Urządzenie posiada certy󰘰kat ATEX zgodnie z dyrektywami i normami. Użytkownicy
spoza Wspólnoty Europejskiej powinni sprawdzić krajowe przepisy dla stref
zagrożonych wybuchem.

page 7 of 68
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the validity of this document with respect to his product. manual-no.: 999290 / 12/12/2016
PT
RO
RU
SE
SI
Atenção: O manual do dispositivo oferecido com aprovação ATEX está disponível em
Alemão, Inglês e Francês (DVR 3: também em holandês). O utilizador só é autoriz-
ado a operar o dispositivo se dominar um destes idiomas ou se tiver disponível um
manual de operação completo, técnica e corretamente traduzido. O manual deverá
ser lido e entendido na sua totalidade antes de se iniciar o funcionamento do disposi-
tivo e todas as medidas necessárias deverão ser aplicadas.
O dispositivo tem uma aprovação ATEX de acordo com as diretivas e normas da Co-
munidade Europeia. Os utilizadores fora da Comunidade Europeia deverão veri󰘰car
os regulamentos nacionais relativos às áreas de risco.
Atentie: Manualul aparatului este disponibil in urmatoarele limbi: germana, engleza si
franceza (DVR 3: de asemenea si in olandeza).
Operatorul poate utiliza acest dispozitiv doar daca intelege una din aceste limbi sau
exista o traducere tehnica corecta a manulului.
Manulul trebuie citit complet si inteles inainte de punerea in functiune a aparatului si
toate cerintele solicitate trebuie aplicate.
Dispozitivul are aprobare ATEX conform cu directivele si standardele EC. Utilizatorii
din afara comunitatii Europene trebuie sa
veri󰘰ce regulile speci󰘰ce tarii lor si standardele pentru utilizarea aparatului intr-un
mediu periculos.
Внимание: инструкция на предложенный аппарат с сертификатом ATEX
доступна на немецком, английском и французском (DVR 3: также на датском).
Пользоваттелю разрешено работать с прибором только, если он понимает
один из этих языков или технически корректный полный перевод инструкции.
Инструкция должна быть полностью прочитана и понята до начала работы
с прибором, должны быть выполнены необходимые требования для работы
прибора.
У прибора есть сертификат ATEX согласно стандартам ЕС. Пользователи вне
ЕС должны проверять требования своих стран для работы в опасных областях.
Observera: Manualen om den erbjudna enheten med ATEX-godkännande 󰘰nns på
tyska, engelska och franska (DVR 3: även nederländska). Användaren är endast
tillåten att använda enheten om han förstår något av dessa språk eller en tekniskt
korrekt översättning av den fullständiga manualen. Manualen måste vara helt läsas
och förstås innan drift av enheten och alla nödvändiga åtgärder måste tillämpas.
Enheten har en ATEX-godkännande enligt EG-direktiv och standarder. Användare
utanför Europeiska gemenskapen måste kontrollera nationella regler för farliga områ-
den.
Opomba: navodila za uporabo za ponujeno napravo z odobritvijo ATEX je na voljo v
nemškem, angleškem in francoskem jeziku ( DVR 3 : tudi nizozemščina ). Uporaba
naprave je dovoljena samo uporabnikom kateri so popolnoma prebrali in razume-
jo navodila v enem izmed ponujenih jezikov ali tehnično pravilen prevod celotnega
priročnika.
Naprava ima ATEX odobritev v skladu z EC direktivami in standardi. Uporabniki zunaj
Evropske skupnosti morajo preveriti nacionalne predpise za nevarna območja.

page 8 of 68
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the validity of this document with respect to his product. manual-no.: 999290 / 12/12/2016
SK
TR
Upozornenie: Návod pre ponúknutý prístroj s ATEX schválením je dostupný v ne-
meckom, anglickom alebo francúzskom jazyku (DVR 3: tiež v holandskom). Užívateľ
môže používať prístroj iba v prípade ak rozumie jednému z týchto jazykov alebo
technicky správnemu prekladu celého návodu na obsluhu. Je nutné si prečítať celý
návod na obsluhu a pochopiť ho pred začatím práce s prístrojom a musí pritom
dodržať všetky požadované opatrenia.
Prístroj má ATEX schválenie podľa požiadaviek kladených smernicami a normami
Európskej únie . Užívatelia mimo Európskej únie si musia overiť platné národné pred-
pisy kladené na priestory s nebezpečenstvom výbuchu.
Dikkat : ATEX onayı ile sunulan cihazın kuulanma kitabı Almanca, İngilizce ve
Fransızca dillerinde mevcuttur (DVR3: ek olarak Hollanda dilinde). Kullanıcı bu diller-
den birini tam olarak anladığı yada teknik olarak bütün kullanma kitabını kendi diline
çevirebildiği durumda cihazı kullanabilir. Cihazın kullanımasından önce kullanma
kitabının tamamı okunmuş olmalı ve gerekli ölçümler yapılmış olmalıdır.
Cihaz EC-direkti󰘱eri ve standartlarına uygun ATEX onayına sahiptir. Avrupa Topluluğı
dışında bulunan kullanıcılar, tehlikeli alanlar için kendi ülkelerinin düzenlemelerini
kontrol etmelidirler.

page 9 of 68
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the validity of this document with respect to his product. manual-no.: 999290 / 12/12/2016
Contents
Safety information! ...................................................................................................11
General information..........................................................................................................................12
Intended use.....................................................................................................................................12
Setting up and installing the equipment ...........................................................................................12
Ambient conditions ...........................................................................................................................16
Operating conditions ........................................................................................................................16
Safety during operation ....................................................................................................................18
Maintenance and repair....................................................................................................................19
Notes regarding devices with ATEX conformity ....................................................20
Technical data ...........................................................................................................22
Use and operation ....................................................................................................28
Installing in a vacuum system ..........................................................................................................28
During operation...............................................................................................................................33
Shutdown .........................................................................................................................................33
Example for the build-up of a vacuum system ......................................................34
Circuit diagram for a system with MD 4C EX VARIO .............................................35
Circuit diagram for a system with MV 10C EX VARIO ...........................................36
Accessories ..............................................................................................................37
Troubleshooting .......................................................................................................38
Replacing diaphragms and valves..........................................................................39
Inspecting the overpressure safety valve ..............................................................48
Repair - Maintenance - Return - Calibration ...........................................................51
Manual for motor ......................................................................................................53
EC Type examination certicate .............................................................................60
EC Declaration of Conformity of the Machinery .......................................................66
Declaration of Incorporation of the Machinery .........................................................67

page 10 of 68
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➨DANGER indicates a hazardous situation which, if not avoided, will re-
sult 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 is used to address practices not related to personal injury.
Caution! Hot surface!
Isolate equipment from mains before removing the cover.
NOTICE

page 11 of 68
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Safety information!
Attention: To operate the pump / pumping unit additional devices
are required, see section
“Example for the build-up of a vacuum system”.

page 12 of 68
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully
the validity of this document with respect to his product. manual-no.: 999290 / 12/12/2016
General information
☞Read and comply with this manual before installing or operating the equip-
ment.
☞Transport the pump at the provided handle.
Remove all packing material, remove the product from its packing-box, remove the
protective covers from the inlet and outlet ports and keep, inspect the equipment.
If the equipment is damaged, notify the supplier and the carrier in writing within three
days; state the item number of the product together with the order number and the
supplier’s invoice number. Retain all packing material for inspection.
Do not use the equipment if it is damaged.
If the equipment is not used immediately, replace the protective covers. Store the
equipment in suitable conditions.
Intended use
☞Use the equipment for the intended use only according to the ATEX conformity, e.
g. for pumping gas atmosphere without aerosol in a range form 0.1 to 1000 mbar
and a maximum inlet pressure (dynamic pressure) and outlet pressure of 1100
mbar (absolute).
☞The pump and all system parts must not be used on humans or animals.
☞ Prevent any part of the human body from coming into contact with vacuum.
☞Ensure that the individual components are only connected, combined and oper-
ated according to their design and as indicated in the instructions for use.
☞Comply with notes on correct vacuum and electrical connections, see section
”Use and operation”.
The pumps are marked with ”X” (according to EN 13463-1), i. e. restrictions of
the operation conditions:
• The pumps are designated for a low degree of mechanical stress and have
to be installed in a way so that they can not be damaged from outside.
Pumping units with glass attachment parts have to be installed protected
against shocks from the outside and against glass splinters in the event of
breaking (implosion). Attention: The joint clips at the glass attachment parts
are not grounded. Avoid charge.
• The pumps are designated for an ambient and gas inlet temperature during
operation of +10 to +40°C. Never exceed these ambient and gas inlet tem-
peratures.
Setting up and installing the equipment
Before system start-up of the pump or the complete system the user has to evaluate
in its entirety the explosion risks and takes adequate measures in application of the
principle of risk assessment.
NOTICE
NOTICE

page 13 of 68
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the validity of this document with respect to his product. manual-no.: 999290 / 12/12/2016
The evaluation and the measures have to be laid down in an explosion protection
document before system start-up.
The pump/system must not be operated until operation without danger in explosive
atmosphere is ensured. Provide suitable control, protection and warning sys-
tems even in the event of failure.
The inner (pumped media) and outer part of the pump have to be evaluated
separately because of their different conformity (see also section ”Technical
data” and ”Notes regarding devices with ATEX conformity”).
The pumps are not suitable for pumping dust and have no approval for operation
below ground.
The pumps are not suitable for pumping self inammable substances, for substanc-
es which are inammable without air and explosive substances.
☞ Electrical and vacuum components might require a separate approval.
☞Include the components in the recurrent tests of tightness for pressure vessels, in
the case of hits and beats an intermediate leak test is required.
☞Due to the high compression ratio of the pumps, pressure at the outlet port might
be generated being higher than the max. permitted pressure compatible with the
mechanical stability of the system.
☞Do not permit any uncontrolled pressurizing (e.g. make sure that the exhaust
pipeline cannot become blocked). Risk of bursting!
☞Always provide a free and pressureless exhaust pipeline.
☞If there is an exhaust isolation valve, make sure that you cannot operate the equip-
ment with the valve closed.
• Secure coolant hoses at the hose nozzles (e.g. with hose clip) to prevent their
accidental slipping.
• Comply with maximum permissible pressures at inlet and outlet and pressure
differences, see section ”Technical data”. Do not operate the pump with overpres-
sure at the inlet.
• Attention: Flexible elements tend to shrink when evacuated.
Provide a rm level platform for the equipment and check that the system to be
evacuated is mechanically stable and that all ttings are secure. Ensure a stable po-
sition of the pump without any mechanical contact except of the pump feet. Comply
with all applicable safety regulations.
Pumping units with glass attachment parts have to be installed protected
against hits from outside and protected against splinters (against implosion).
Adopt suitable measures prior to the rst use.
Attention: The joint clips at the glass attachment parts are not grounded. Avoid
charge.
Obey all relevant requirements (regulations and guidelines) and adopt suitable
safety measures.
☞ Pay attention to the max. permitted ambient temperature and make sure
ventilation is adequate especially if pump is installed in a housing or if
ambient temperature is elevated, install an external automatic ventilation
system if necessary. If pumping hot process gases make sure that the max-
imum permitted gas inlet temperature is not exceeded.
☞If the equipment is brought from cold environment into a room for operation,
allow the equipment to warm up (pay attention to water condensation on cold
surfaces).
☞The work clothing of the user must not lead to electrostatic discharge which may
ignite the explosive atmosphere.
NOTICE

page 14 of 68
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the validity of this document with respect to his product. manual-no.: 999290 / 12/12/2016
Inlet
☞Connection lines at the pump inlet have to be performed conductive grounded
and gas tight (designation of the pump connections see gures).
☞The diameter of the inlet pipeline should be at the least as large as the diameter
of the pump connection pipelines.
☞Obey max. inlet pressure (see ”Technical data”).
Outlet
☞ Connection lines at the pump outlet (small ange) have to be performed conduc-
tive grounded and gas tight (designation of the pump connections see gures).
☞The diameter of the inlet pipeline should be at the least as large as the diameter
of the pump connection pipelines.
☞Obey max. inlet pressure (see ”Technical data”).
☞ Lead away exhaust gas or condensate at the outlet of the pump and the overpres-
sure safety valve under consideration of all applicable safety measures. Avoid
backow of gases or condensate denitely.
☞Escaped and/or intentional or unintentional released inammable gases or va-
pours which may lead to danger of explosion have to be lead away safely or lead
to an appropriate place. If not possible enclose the gasses, vapours or mist safely
or dispose in an other way. In case of mixtures or different gases the measures
must consider the highest risk.
Check the overpressure safety valve at the outlet regularly.
☞Attention: If the exhaust pipeline is blocked the pumped gases may escape
into the environment through the overpressure safety valve. If necessary
take appropriate measures.
If pumping dangerous gases install a second completely independent exhaust
pipeline instead of the overpressure safety valve. If necessary assemble a hose
nozzle instead of the overpressure safety valve to lead away the gases through
a second exhaust pipeline. Attention: Never combine the exhaust pipelines, i. e.
provide a sperate line for each exhaust.
Inlet and outlet of the pump
☞To avoid damage of the pump due ignition of gases or gas mixtures before or
behind the pump the user has to provide suitable safety devices against in-
coming of ames according to EN 12874. The user must ensure the suitability
concerning gas ow, chemical resistance and safeness against clogging prior to
use.
Inert gas purge
☞The user must take suitable precautions to prevent any formation of explosive
mixtures in the expansion chamber using inert gas to purge the housing. Other-
wise in case of a diaphragm crack, mechanically generated sparks, hot surfaces
or static electricity may ignite these mixtures.
☞Inert gas connection lines (inlet and outlet) have to be performed conductive
grounded and gas tight (designation of the pump connections see gures).
☞Connect the inert gas connections at the crankcase not serial but parallel.
☞ We recommend an inert gas purge of ≥ 1 l per minute.
☞ Provide an external pressure limitation to a pressure of 1.1 bar absolute if inert
gas is connected to the pump or at an air admittance valve. The inert gas has
to be dry and pure. It could be recommendable to provide an appropriate control
system to supervise the inert gas ow which switches off the pump in case of
failure (e. g. absence of inert gas) if necessary.
☞To control the faultless function of the diaphragm it could be recommendable in-
stall a gas specic detector at the outlet of the inert gas purge. A signal from
the detector indicates a diaphragm crack. Switch off the pump immediately and
check diaphragms.

page 15 of 68
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the validity of this document with respect to his product. manual-no.: 999290 / 12/12/2016
☞ It is possible to leave out the inert gas purge if the surrounding of the pump
is zone 2 or not an explosive atmosphere.
☞ Without inert gas purge the pump outer part has the specication II 3G IIB
T4 X.
Gas ballast
☞Use only inert gas for gas ballast.
☞We recommend the use of gas ballast when pumping condensable media.
☞Gas ballast connection lines (inlet and outlet) have to be performed conductive
grounded and gas tight (designation of the pump connections see gures).
☞Connect the inert gas connections at the gas ballast and the crankcase not se-
rial but parallel.
☞ Provide an external pressure limitation to a pressure of 1.1 bar absolute if inert
gas is connected to the pump or at an air admittance valve. The inert gas has to
be dry and pure. It could be recommendable to provide an appropriate control
system to supervise the inert gas ow which switches off the pump in case of
failure (e. g. absence of inert gas) if necessary.
Pumping at high inlet pressure may lead to overpressure at the gas ballast valve.
☞ Pumped gases or condensate might be pushed out in case the valve is open.
☞ The inert gas lines have to be chemical resistent due to possible backow.
Electrical connection
☞Electrical connection of the pump must be performed only by a suitable trained
and supervised personnel.
☞The motor cable for pumps in 230V version contains wires colour coded as fol-
lows: green or green and yellow: earth; blue or white: neutral; brown or black:
live.
☞ Provide a fuse for the mains cable (L and N) according to the current draw of the
motor, see ”Technical data”. When using pumps with two motors provide a fuse
for each pump motor separately. Due to a high charge current for each motor a
protection is recommended, e. g., automatic fuse 16A type C.
☞The earth connection of the device (potential equalization) has to be performed
only using the green or green/yellow earth connection wire. Connect the earth
connection wire of the device to the earth connection of the power supply line and
the potential equalization point of the environment of the device.
☞When using pumps with two motors absolutely connect both motors as de-
scribed above. Ensure that always both motors are running.
Connection of the control cable
☞Electrical connection of the pump must be performed only by a suitable trained
and supervised personnel.
In case of pumps with two motors (MV 10C EX VARIO) connect the control cables
in series.
Maximum voltage: 12 V.
Maximum current: 60 mA.
Comply with polarity!
The control cable of the pump contains four colored wires:
brown (+): 4 - 20 mA / speed control
blue (-): 4 - 20 mA / speed control
black: Status
grey: Status

page 16 of 68
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the validity of this document with respect to his product. manual-no.: 999290 / 12/12/2016
Attention: Never use the antistatic connection at the housing of the device to
connect the device to ground, use only the green or green and yellow connection
wire of the motor. Use the antistatic connection at the housing only to perform an
antistatic connection of other non-electronic devices and components, e. g. inlet
and outlet vacuum hoses or something similar. Never lead away short-circuit cur-
rents using this connection. External electric devices have to be connected at the
potential equalization point of the environment separately and independent of this
device.
☞Equipment must be connected only to a suitable fused and protected electrical
supply and a suitable earth point by suitable trained personnel. Failure to connect
the motor to ground may result in deadly electrical shock.
☞Check that mains voltage and current conform with the equipment (see rating
plate).
☞Obey notes regarding the motor in section ”Instructions manual: Motor
with integrated speed control”, see below.
The motor and the motor circuit board are protected by a thermal protection with
automatic reset.
Attention: The pump might restart on its own after sufcient cooling. Take appropri-
ate precautions, if an automatic restart of the pump may lead to a dangerous situa-
tion.
☞Avoid reliable high heat supply (e. g. due to hot process gases). Maximum per-
mitted gas and ambient temperature se ”Technical data”.
☞Make sure ventilation is adequate especially if pump is installed in a housing or if
ambient temperature is elevated, install an external automatic ventilation system
if necessary.
☞Ensure that in case of pumps with two motors both motors are switched on at
the same time, if not possible switch on the motor of the pump at the outlet rst.
Ambient conditions
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 con-
formity”) with regard to design, type and model, especially directive EN 61010-1.
This directive gives in detail conditions, under which the equipment can be operated
safely (see also IP degree of protection).
Adopt suitable measures in case of differences, e. g. using the equipment outdoors,
installation in altitudes of more than 1000 m above mean sea level, conductive pol-
lution or dewiness.
Pay attention to the permissible maximum ambient and gas inlet temperatures
(see ”Technical data”).
Operating conditions
The pumps have a conformity according to their specication to be installed in
areas and to pump out of areas which contain under normal operation conditions
occasionally a potential explosive atmosphere as a mixture of air with inammable
gases or vapours (category 2). Class of ignition and temperature see ”Technical
data”.

page 17 of 68
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully
the validity of this document with respect to his product. manual-no.: 999290 / 12/12/2016
The specication for category 2 for the outer part of the pump is only val-
id when purging the crankcase with inert gas. Without inert gas purging the
pump has the specication II 3G IIB T4 X for the outer part.
☞Adopt suitable measures to prevent the release of dangerous, explosive, corro-
sive or polluting uids.
☞If pumping different substances, it is recommended to purge the pump with air
or inert gas prior to changing the pumped media in order to pump out residues
and to avoid reactions of the pumped substances with each other and with the
pump materials.
Take into consideration interactions and chemical reactions of the pumped
media.
☞Ensure that the materials of the wetted parts are compatible with the pumped
substances, see section ”Technical data”.
☞The valves and the diaphragms are wear parts. Replace the diaphragms and
valves at the latest at 90% of the typical lifetime or immediately at higher
noise level. The typical lifetime of a diaphragm is 15000 operation hours when
pumping non-corrosive or non-condensable gases, if necessary provide an op-
eration time counter.
☞Check the overpressure safety valve between the pump stages (only pumps
with four cylinders) regularly and replace at the latest at 90% of the typical life-
time (typical lifetime: 15000 operation hours).
☞Take adequate precautions to protect people from the effects of dangerous sub-
stances (chemicals, thermal decomposition products of uoroelastomers), wear
appropriate safety-clothing and safety glasses.
☞Obey applicable regulations when disposing of chemicals. Take into considera-
tion that chemicals may be polluted.
☞Adopt suitable measures to prevent contamination of the pumped substances or
the environment.
Electronic equipment is never 100% fail-safe. This may lead to an indenite status of
the equipment. Provide protective measures against malfunction and failure.
☞Operating the pump, stand still of the pump or operating the air admittance valve
must not lead to a critical dangerous situation under any circumstances.
Ensure that in case of failure the pump and the vacuum system always will turn into
a safe status.
☞In case of leaks in the manifold or diaphragm cracks pumped substances might
be released into the environment or into the pump housing. To reduce the risk of
leaks, ask for a diaphragm pump with additional safety diaphragm.
☞Obey especially notes on operation and use and maintenance.
☞Failure of the pump (e. g. by power failure) or connected components, parts of
the supply (e. g. coolant) or change of parameters (e. g. increase of pressure
in the coolant system) must not lead to a critical dangerous situation under any
circumstances.

page 18 of 68
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully
the validity of this document with respect to his product. manual-no.: 999290 / 12/12/2016
Use only genuine spare parts and accessories.
☞Otherwise safety and performance of the equipment as well as the electromag-
netic compatibility of the equipment might be reduced.
☞If not using genuine spare parts the ATEX conformity becomes invalid.
Do not start the pump if the pressure difference between inlet and outlet port ex-
ceeds 1.1 bar at maximum.
Prevent the backpressure of gases and the backow of condensates.
Never suck liquids or dust into the pump.
Ensure that in case of failure the pump and the vacuum system always will turn into
a safe status.
Provide appropriate protective measures (i.e. precautions which allow for the re-
quirements of the respective application) even for the case of failure and malfunc-
tion.
Comply especially with notes on operation and use and maintenance.
Due to the residual leak rate of the equipment, there might be 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.
Safety during operation
➨In case install an appropriate collecting and disposal system and take protective
action for pump and environment.
➨ Potentially explosive mixtures at the outlet of the pump have to be drained ap-
propriately, sucked off or diluted with inert gas to non-explosive mixtures.
☞ Pay attention to the symbol ”hot surfaces” on the equipment. Adopt suitable
measures to prevent any danger arising from the formation of hot surfaces or
electric sparks. Provide a suitable protection against contact if necessary.
☞Check liquid level in both catchpots regularly and drain condensate in time.
• Comply with applicable regulations when disposing of chemicals. Take into con-
sideration that chemicals may be polluted.
Take adequate precautions to protect people from the effects of dangerous sub-
stances (chemicals, thermal decomposition products of uoroelastomers), wear
appropriate safety-clothing and safety glasses.

page 19 of 68
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully
the validity of this document with respect to his product. manual-no.: 999290 / 12/12/2016
Maintenance and repair
Wear parts have to be replaced regularly. In normal use, the lifetime of the dia-
phragms and valves is typically 15,000 operating hours. Bearings have a typical du-
rability of 40000 h.
Use only genuine spare parts and accessories.
☞Otherwise safety and performance of the equipment as well as the electromag-
netic compatibility of the equipment might be reduced.
☞If not using genuine spare parts the ATEX conformity becomes invalid.
Ensure that maintenance is done only by suitable trained and supervised techni-
cians.
➨Isolate equipment from mains and wait two minutes before starting mainte-
nance to allow the capacitors to discharge.
• Before starting maintenance vent the pump, isolate the pump and other compo-
nents from the vacuum system. Allow sufcient cooling of the pump. Drain con-
densate, if applicable.
☞Ensure that the pump cannot be operated accidentally. Never operate the
pump if covers or other parts of the pump are disassembled. Never operate
a defective or damaged pump.
☞Attention: The pump might be contaminated with process chemicals which have
been pumped during operation. Ensure that the pump is decontaminated before
maintenance and take adequate precautions to protect people from the effects of
dangerous substances if contamination has occurred.
☞Take adequate precautions to protect people from the effects of dangerous sub-
stances (chemicals, thermal decomposition products of uoroelastomers), wear
appropriate safety-clothing and safety glasses.
☞To avoid danger due to electrostatic ignition wipe the device or parts of the de-
vice only with a humid cloth.
In order to comply with law (occupational, health and safety regulations, safety at
work law and regulations for environmental protection) vacuum pumps, components
and measuring instruments returned to the manufacturer can be repaired only when
certain procedures (see section ”Repair - Maintenance - Return - Calibration”)
are followed.

page 20 of 68
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the validity of this document with respect to his product. manual-no.: 999290 / 12/12/2016
This information sheet does not replace the instructions for use!
In directive 89/391/EEC the European Union has dened requirements for safety at work, which later
have been detailed for explosive atmospheres in the directive 1999/92/EC.
The requirements to equipment for operation in explosive atmospheres have been dened in the direc-
tive 94/9/EC, since April 20th 2016 in directive 2014/34/EU (also known as ATEX 100a or ATEX 95).
Concerning technology these directives only state general requirements. Technical details and test pro-
cedures are “recommended“ in European standards (e.g. for equipment with ATEX conformity: EN 1127,
E50014ff, EN 60079, EN 13463ff.).
Since July 1st 2003 equipment intended for use in potentially explosive atmospheres shall only be sold
if the equipment is in accordance with directive 94/9/EG (ATEX), since April 20th 2016 in accordance
with directive 2014/34/EU. This applies only to new equipment. The repair of equipment sold prior to July
1st, 2003 is not affected. EX approvals according to directive 94/9/EC remain valid under 2014/34/EU.
Requirements to users and manufacturers of equipment according to ATEX:
The user of a system according to ATEX has to analyse the overall explosion risks according to
directive 1999/92/EC and has to take adequate measures by means of a risk assessment. The evalua-
tion and validation of measures has to be documented in an explosion protection document, specifying
among other things the areas classied as potentially explosive (see below). The inner part of the pump
(pumped gases) and the environment of the pump (outer explosion protection) have to be evaluated
separately. Often the requirements will be different.
The responsibility for the classication of areas with potentially explosive atmospheres into
zones and for the specication of requirements to the equipment (category of equipment, class
of ignition, temperature class etc.) is accountable strictly to the operator of the system.
The equipment used has to comply with these requirements. VACUUBRAND does not advise
customers concerning requirements to the equipment under the specic aspects of the cus-
tomer’s applications.
Equipment with ATEX-conformity is to be used by appropriately instructed personnel only.
ATEX marking, intended use:
The marking of the equipment corresponding with the standards (see above) gives the areas in which
the equipment may be used according to its intended use.
Technical data, safety notes and intended use:
See instructions for use!
The equipment must not be used if the instructions for use are not read, fully understood and
obeyed.
Clean, check and maintain equipment regularly.
Do never operate a defective equipment.
Notes regarding devices with ATEX conformity