{"id":10409,"date":"2025-03-05T17:57:09","date_gmt":"2025-03-05T17:57:09","guid":{"rendered":"https:\/\/ipsenglobal.com\/?post_type=knowledge-center&#038;p=10409"},"modified":"2026-03-11T17:33:18","modified_gmt":"2026-03-11T17:33:18","slug":"troubleshooting-checklist-diffusion-pump-backstreaming","status":"publish","type":"knowledge-center","link":"https:\/\/ipsenglobal.com\/de\/knowledge-center\/troubleshooting-checklist-diffusion-pump-backstreaming\/","title":{"rendered":"Checkliste f\u00fcr die Fehlersuche - R\u00fcckstr\u00f6mung von Diffusionspumpen"},"content":{"rendered":"<h4 class=\"wp-block-heading\">Von Jim Grann, Technischer Direktor von Ipsen<\/h4>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/ipsenglobal.com\/wp-content\/uploads\/2022\/03\/mikros-113.jpg\" alt=\"vacuum furnace diffusion pump\" class=\"wp-image-3589\" srcset=\"https:\/\/ipsenglobal.com\/wp-content\/uploads\/2022\/03\/mikros-113.jpg 1024w, https:\/\/ipsenglobal.com\/wp-content\/uploads\/2022\/03\/mikros-113-300x169.jpg 300w, https:\/\/ipsenglobal.com\/wp-content\/uploads\/2022\/03\/mikros-113-768x432.jpg 768w, https:\/\/ipsenglobal.com\/wp-content\/uploads\/2022\/03\/mikros-113-18x10.jpg 18w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Niemand m\u00f6chte seine <a href=\"https:\/\/ipsenglobal.com\/de\/vacuum-furnaces\/\">Vakuumofen<\/a> T\u00fcr und sehen \u00fcberall \u00d6l. Diffusionspumpe <a href=\"https:\/\/ipsenglobal.com\/de\/knowledge-center\/diffusion-pumps-backstreaming\/\">Backstreaming<\/a> kann f\u00fcr die Bediener frustrierend und f\u00fcr das Wartungspersonal mitunter schwierig zu diagnostizieren sein. Es kann sich auch auf Prozesse und Sensoren von Vakuummessger\u00e4ten auswirken.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Wann immer es Anzeichen f\u00fcr eine R\u00fcckstr\u00f6mung gibt, ist es ratsam, die \u00fcblichen Verd\u00e4chtigen zu \u00fcberpr\u00fcfen. Im Folgenden finden Sie eine Checkliste der wahrscheinlichen Schuldigen, die Sie \u00fcberpr\u00fcfen sollten, wenn Sie mit einem R\u00fcckfluss aus einer Diffusionspumpe konfrontiert werden:<\/p>\n\n\n<p>\n\n\n<\/p>\n<p class=\"wp-block-paragraph\" style=\"padding-left: 40px;\">\u2611\ufe0e Liegt die Temperatur des K\u00fchlwassers, das die Diffusionspumpe versorgt, bei oder unter 90\u00b0 F? (Die ideale Temperatur sollte zwischen 60\u00b0 F und 80\u00b0 F liegen.)<\/p>\n<p>\n\n\n\n<\/p>\n<p class=\"wp-block-paragraph\" style=\"padding-left: 40px;\">\u2611\ufe0e Liegt die Temperatur des aus der Diffusionspumpe austretenden K\u00fchlwassers bei oder \u00fcber 125\u00b0 F?<\/p>\n<p>\n\n\n\n<\/p>\n<p class=\"wp-block-paragraph\" style=\"padding-left: 40px;\">\u2611\ufe0e Nehmen alle drei Stromphasen, die die Diffusionspumpe versorgen, die gleiche Stromst\u00e4rke auf? (Wenn nicht, gibt es m\u00f6glicherweise Probleme mit der Heizung, defekte \u00dcberbr\u00fcckungskabel, durchgebrannte Sicherungen oder etwas anderes, das mit dem elektrischen Service zusammenh\u00e4ngt)<\/p>\n<p>\n\n\n\n<\/p>\n<p class=\"wp-block-paragraph\" style=\"padding-left: 40px;\">\u2611\ufe0e Wie hoch ist der \u00d6lstand f\u00fcr die Diffusionspumpe?<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Ein zu hoher Wert kann dazu f\u00fchren, dass das System kalt l\u00e4uft.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\n\n\n\n<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Zu niedrig und das System l\u00e4uft hei\u00df<\/li>\n<li>Beides f\u00fchrt im Extremfall zum Backstreaming<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p class=\"wp-block-paragraph\">\n\n\n\n<\/p>\n<p class=\"wp-block-paragraph\" style=\"padding-left: 40px;\">\u2611\ufe0e Ist Ihre Frequenzweiche auf 90 Mikrometer oder mehr eingestellt?<\/p>\n<p>\n\n\n\n<\/p>\n<p class=\"wp-block-paragraph\" style=\"padding-left: 40px;\">\u2611\ufe0e Dauert es in einem kalten Ofen l\u00e4nger als 3 Minuten, bis Sie von etwa 80 Mikron auf 1 Mikron gepumpt haben?<\/p>\n<p>\n\n\n\n<\/p>\n<p class=\"wp-block-paragraph\" style=\"padding-left: 40px;\">\u2611\ufe0e Haben Sie Ihren Ofen l\u00e4nger als einen Tag im kalten Hochvakuum stehen lassen?<\/p>\n<p>\n\n\n\n<\/p>\n<p class=\"wp-block-paragraph\" style=\"padding-left: 40px;\">\u2611\ufe0e Wurde bei einem k\u00fcrzlich erfolgten \u00d6lwechsel eine andere Fl\u00fcssigkeit, eine wiederaufbereitete Fl\u00fcssigkeit oder eine andere Fl\u00fcssigkeitsfamilie verwendet?<\/p>\n<p>\n\n\n\n<\/p>\n<p class=\"wp-block-paragraph\" style=\"padding-left: 40px;\">\u2611\ufe0e Ist der Sitz des Schruppventils beim Schlie\u00dfen undicht?<\/p>\n<p>\n\n\n\n<\/p>\n<p class=\"wp-block-paragraph\" style=\"padding-left: 40px;\">\u2611\ufe0e Haben Sie die Dichtheit des Ofens sowohl im kalten Zustand als auch bei H\u00f6chsttemperaturen gepr\u00fcft? (Oft treten bei einem hei\u00dfen Ofen Lecks auf, die bei K\u00e4lte aufgrund der Ausdehnung nicht vorhanden sind).<\/p>\n<p>\n\n\n\n<\/p>\n<p class=\"wp-block-paragraph\" style=\"padding-left: 40px;\">\u2611\ufe0e Verwenden Sie Kupfer- oder Edelstahldr\u00e4hte und Kabelschuhe anstelle der empfohlenen Nickeldr\u00e4hte und Kabelschuhe?<\/p>\n<p>\n\n\n<\/p>\n\n\n<p class=\"wp-block-paragraph\">Wenn Sie die Checkliste durchgegangen sind und das Problem immer noch nicht gefunden haben, ist es an der Zeit, einen Ipsen-Servicetechniker anzurufen und einen Serviceeinsatz zu vereinbaren. Wenden Sie sich an Ihren regionalen Service Manager oder rufen Sie uns unter 1-844-GO-IPSEN (1-844-464-7736) an.<\/p>\n\n\n\n    <section id=\"button-block_ea561a42b3026b01df4a3a13176e65d7\"\n        class=\"button-custom-block d-block d-lg-inline-block mx-auto me-lg-5 mb-4\">\n        <a class=\"btn btn-outline-secondary\" href=\"https:\/\/ipsenglobal.com\/wp-content\/uploads\/2025\/02\/Ipsen-Backstreaming-Checklist.pdf\" target=\"_self\">\n            Laden Sie hier eine Checkliste zum Ausdrucken herunter.        <\/a>\n    <\/section>","protected":false},"excerpt":{"rendered":"<p>Von Jim Grann, Technischer Direktor bei Ipsen Niemand m\u00f6chte die T\u00fcr seines Vakuumofens \u00f6ffnen und \u00fcberall \u00d6l sehen. Die R\u00fcckstr\u00f6mung von Diffusionspumpen kann f\u00fcr die Bediener frustrierend und f\u00fcr die Betreiber manchmal schwierig sein.<\/p>","protected":false},"author":7,"featured_media":0,"menu_order":0,"template":"","meta":{"_acf_changed":false,"_tec_requires_first_save":true,"_searchwp_excluded":"","_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_price":"","_stock":"","_tribe_ticket_header":"","_tribe_default_ticket_provider":"","_tribe_ticket_capacity":"0","_ticket_start_date":"","_ticket_end_date":"","_tribe_ticket_show_description":"","_tribe_ticket_show_not_going":false,"_tribe_ticket_use_global_stock":"","_tribe_ticket_global_stock_level":"","_global_stock_mode":"","_global_stock_cap":"","_tribe_rsvp_for_event":"","_tribe_ticket_going_count":"","_tribe_ticket_not_going_count":"","_tribe_tickets_list":"[]","_tribe_ticket_has_attendee_info_fields":false,"_EventAllDay":false,"_EventTimezone":"","_EventStartDate":"","_EventEndDate":"","_EventStartDateUTC":"","_EventEndDateUTC":"","_EventShowMap":false,"_EventShowMapLink":false,"_EventURL":"","_EventCost":"","_EventCostDescription":"","_EventCurrencySymbol":"","_EventCurrencyCode":"","_EventCurrencyPosition":"","_EventDateTimeSeparator":"","_EventTimeRangeSeparator":"","_EventOrganizerID":[],"_EventVenueID":[],"_OrganizerEmail":"","_OrganizerPhone":"","_OrganizerWebsite":"","_VenueAddress":"","_VenueCity":"","_VenueCountry":"","_VenueProvince":"","_VenueState":"","_VenueZip":"","_VenuePhone":"","_VenueURL":"","_VenueStateProvince":"","_VenueLat":"","_VenueLng":"","_VenueShowMap":false,"_VenueShowMapLink":false,"_tribe_blocks_recurrence_rules":"","_tribe_blocks_recurrence_description":"","_tribe_blocks_recurrence_exclusions":"","_ecp_custom_2":"","footnotes":""},"categories":[612,654],"tags":[],"class_list":["post-10409","knowledge-center","type-knowledge-center","status-publish","hentry","category-preventive-maintenance","category-pumping-systems"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Troubleshooting Checklist - Diffusion Pump Backstreaming - Ipsen Global<\/title>\n<meta name=\"description\" content=\"Struggling with diffusion pump backstreaming? 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