As a classic product line in the vacuum detection field, Pfeiffer (Pfeiffer Vacuum) ASM series helium mass spectrometer leak detectors are renowned for their unique counter-flow principle design and full-scenario adaptability. Covering all types of models including sniffer-type, portable dry-type, tabletop multipurpose, and mobile high-performance (such as active models like ASM 306S/310/340D/W/390/392 and discontinued models like ASM 10/50/180), they are widely used in core fields such as industrial production, R&D testing, and electronic component inspection. Given the large number of models in the series, significant technical architecture differences, and the difficulty in obtaining maintenance spare parts for discontinued models, unprofessional repairs can easily lead to reduced detection accuracy. To address pain points such as equipment failure downtime and lack of maintenance support for discontinued models, our company officially launches the exclusive professional maintenance service for Pfeiffer ASM series. With full-series adaptability and original equipment-grade technical guarantees, we safeguard the stable operation of your equipment.
Specializing in the entire ASM product line, we provide targeted maintenance solutions for both current mainstream models (such as ASM 390/392 mobile high-performance models and ASM 340D/W tabletop multipurpose models) and discontinued legacy system models (such as ASM 180/192T). We accurately resolve high-frequency faults of the series: abnormally high background values, automatic calibration failure, turbomolecular pump startup failure, RS232 interface communication failure, sniffer probe sensitivity degradation, etc., and deeply address core issues including ion source contamination, standard leak blockage, solenoid valve seal aging, and turbopump bearing wear.
Leveraging Pfeiffer's official technical resources and ESP (Extended Support Program) support, we adopt original equipment-grade spare parts and maintenance processes: specialized maintenance for oil-free pump systems of dry-type models (e.g., ASM 310/340D), oil change and seal optimization for oil-sealed rotary vane pumps of wet-type models (e.g., ASM 340W), and supply of scarce spare parts for discontinued models (such as turbopump assemblies for ASM 182 and touch control modules for ASM 151). After maintenance, core indicators such as the minimum detectable leak rate and response speed of the equipment are restored to factory standards (e.g., 5×10⁻¹² mbar·l/s for ASM 390/392).
In addition to fault repair, we simultaneously provide customized preventive maintenance services (in accordance with original factory standards: ion source maintenance every 6-12 months, mechanical pump oil/filter replacement every 3-6 months, annual standard leak calibration). Targeting the characteristics of different models (such as the portable mobility of ASM 310 and the large-scale system adaptability of ASM 390), we offer specialized services including modular component inspection, interface optimization, and temperature compensation calibration to extend equipment service life.
We support 24-hour emergency response, providing flexible service modes: on-site repair for large-scale mobile/tabletop equipment and mail-in repair for portable/discontinued models requiring in-depth inspection. A detailed test report will be issued within 24 hours of receiving the equipment. We have established a dedicated spare parts library for discontinued models to significantly shorten the maintenance cycle. Additionally, we provide the "Pfeiffer ASM Series Fault Code Quick Reference Manual" for free to help enterprises quickly troubleshoot simple issues.
An electronic component manufacturing enterprise encountered a sudden fault with its core testing equipment, the Pfeiffer ASM 340D (tabletop dry-type) helium mass spectrometer leak detector: automatic calibration prompted "Calibration Failed", the helium background value soared to 2.8×10⁻⁷ mbar·l/s, and RS232 interface communication was interrupted, making it impossible to link with the production line integration system. This forced a complete halt to the electronic component sealing inspection process. As the equipment was responsible for factory inspection of high-end chip packaging components, the potential loss exceeded 40,000 yuan per hour of downtime. Moreover, due to the production line's reliance on the dry-type clean detection characteristics of this model, an urgent repair was required.
Emergency Support: Specialized engineers were dispatched to the site within 2 hours of receiving the report. Combining the dry diaphragm pump and counter-flow principle characteristics of the ASM 340D, diagnostic tools identified the root causes: reduced emission current due to ion source carbon deposition, clogged internal standard leak, and interface failure caused by aging communication modules.
In-Depth Repair: The equipment was transferred to a cleanroom repair workshop. The mass spectrometry chamber and ion source were disassembled and cleaned, and the original-specification filament assembly was replaced. The clogged standard leak was professionally cleared and calibrated. The aging RS232 communication module was replaced, and the linkage parameters between the equipment and the production line integration system were redebugged. The built-in dry diaphragm pump was cleaned and performance-optimized.
Precise Calibration: After maintenance, full-range calibration was performed using a standard leak hole (1×10⁻¹¹ mbar·l/s). Parameters were optimized to simulate electronic component detection scenarios, ensuring the equipment's minimum detectable leak rate was restored to 3×10⁻¹¹ mbar·l/s, complying with ISO and AVS standards.
The equipment fault was completely eliminated: calibration passed successfully at one time, the helium background value stabilized below 7.5×10⁻⁹ mbar·l/s, communication interface linkage was normal, and detection accuracy and response speed were restored to factory levels.
From fault reporting to detection line resumption, only 26 hours elapsed, reducing the enterprise's potential losses by over 1.04 million yuan and ensuring on-time delivery of high-end chip packaging component orders.
A customized maintenance plan (quarterly inspections + annual in-depth maintenance) was formulated for the customer. The equipment has operated continuously for 13 months without faults, and the consistency of detection data has improved by 40%, adapting to the high-load detection needs of the production line.
Tel : +86-15880223078
WhatsApp : +86-13959235484
Email : vacuum@xiamenbest.com
Address : No. 19, Dongan Qianzhanli, Jimei District, Xiamen city china
