PFEIFFER ASM 340 (Helium Leak Detectors/ Máy dò tìm rò rỉ (Máy phát hiện rò rỉ) Hê-li)
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PFEIFFER ASM 340 Series
“Reliable and high-performance leak detection”
- Easy operation and smart functions
- Accurate measurement and short test time
- Customizable for individual needs
Benefits of the ASM 340 series
The leak detectors in our ASM 340 series guarantee high performance in vacuum or sniffing leak detection, even under severe test conditions: Their robust design can handle heavy cycling – repeated cycles of pressurization and depressurization to simulate real-world conditions in a test setting – under a wide range of operating temperatures.
The ASM 340 leak detectors are characterized by their powerful pumping system and are available with an oil-lubricated or dry backing pump. Easy operation, an ultra-fast response time and short sensor recovery are among the top features of these compact multipurpose units.
The dependable leak detectors can be used for both qualitative localization of leaks as well as quantitative global testing (assessing the leakage rate over entire objects) or local testing (targeting individual leak points). The ASM 340 are the only leak detectors in their class offering qualitative leak detection from a pressure of 100 hPa (mbar). This means that even if the leak detector cannot reach the test pressure because of a leak in the system, this leak can still be determined and located.
No training is required to operate the ASM 340 units. Simply use the large, high-resolution touch screen on the control panel to configure the leak test. The resulting data can be recorded and stored in the internal memory as a bitmap or text file, ready to be transferred on a USB stick via a dedicated USB port. In addition, ASM 340 leak detectors can be equipped with a comprehensive selection of communication options, from I/O to fieldbus.
ASM 340 with oil-lubricated rotary vane vacuum pumps
These compact leak detectors are equipped with the largest rotary vane backing pumps in the appropriate size class, allowing extremely fast cycle times.
- Ability to detect large leaks between 100 hPa (mbar) and the inlet test pressure
- Easy operation, intuitive menu navigation in a variety of languages, and large color touch screen
- Various operating voltages for global use
- Available with interface board for automation through an external system (PC or PLC)
- Complete range of accessories such as a remote control for even more convenient leak detection
ASM 340 D with dry diaphragm vacuum pumps
The dry ASM 340 D units are equipped with diaphragm backing pumps. They are used in applications where very clean test conditions are required, such as in the semiconductor industry.
- Completely oil-free leak detection
- Ability to detect large leaks between 100 hPa (mbar) and the inlet test pressure
- Easy operation, intuitive menu navigation in a variety of languages, and large color touch screen
- Various operating voltages for global use
- Available with interface board for automation through an external system (PC or PLC)
- Complete range of accessories such as a remote control for even more convenient leak detection
ASM 340 I without backing pump
This specific unit offers maximum flexibility and is typically used for integration into leak detection systems.
- Maximum flexibility, as the customer can select the appropriate backing pump solution to match the application
- Easy operation, intuitive menu navigation in a variety of languages, and large color touch screen
- Various operating voltages for global use
- Available with interface board for automation through an external system (PC or PLC)
- Complete range of accessories such as a remote control for even more convenient leak detection
ASM Flex packages
ASM Flex packages provide mobility for ASM 340 leak detectors. Mounted on dedicated transport carts, all ASM 340 versions, combined with a backing pump, can be moved freely. This combination delivers excellent pumping performance with full flexibility. To ensure the best customer experience, several ASM Flex packages are available, some with a bypass accessory option.
All ASM Flex packages include:
- A four-wheel cart equipped with a bottle holder and a drawer for small accessories
- An ASM 340 leak detector
- An external backing pump
- All connecting and fixing elements
Technical specifications
| Technical data | ASM 340 | ASM 340D | ASM 340I |
|---|---|---|---|
| Test method | Spraying and sniffing tests | Spraying and sniffing tests | Spraying and sniffing tests |
| Detectable gases | ⁴He; ³He; H₂ | ⁴He; ³He; H₂ | ⁴He; ³He; H₂ |
| Min. detectable leak rate for Helium (spraying test) (Pa m³/s) | 1 · 10⁻¹³ Pa m³/s | 1 · 10⁻¹³ Pa m³/s | 1 · 10⁻¹³ Pa m³/s |
| Min. detectable leak rate for Helium (spraying test) (mbar l/s) | 1 · 10⁻¹² mbar l/s | 1 · 10⁻¹² mbar l/s | 1 · 10⁻¹² mbar l/s |
| Min. detectable leak rate for Helium (sniffing test) (Pa m³/s) | 5 · 10⁻¹⁰ Pa m³/s | 5 · 10⁻¹⁰ Pa m³/s | 5 · 10⁻¹⁰ Pa m³/s |
| Min. detectable leak rate for Helium (sniffing test) (mbar l/s) | 5 · 10⁻⁹ mbar l/s | 5 · 10⁻⁹ mbar l/s | 5 · 10⁻⁹ mbar l/s |
| Pumping speed for Helium | 2.5 l/s | 2.5 l/s | 2.5 l/s |
| Power supply | 100-110; 200-240 V | Universal 100-240 V | Universal 100-240 V |
| Max. power consumption | 850 W | 600 W | 350 W |
| Max. test inlet pressure | 25 mbar | 25 mbar | 25 mbar |
| Start-up time (20 °C) | 3 min | 3 min | 3 min |
| Response time | <1 s | <1 s | <1 s |
| Backing pump | Rotary vane pump | Diaphragm pump | None |
| Roughing capacity | 15 m³/h | 3.4 m³/h | None m³/h |
| Operating temperature | 0-35 °C | 0-40 °C | |
| Operating temperature (Sniffing test) | 0-35 °C | ||
| Operating temperature (Spraying test) | 0-45 °C | ||
| Communication interfaces | I/O, RS-232, Ethernet (PC), Profibus, Ethernet-IP (Industrial Protocol)* | I/O, RS-232, Ethernet (PC), Profibus, Ethernet-IP (Industrial Protocol)* | I/O, RS-232, Ethernet (PC), Profibus, Ethernet-IP (Industrial Protocol)* |
| Sound pressure level | 54 dB(A) | 52 dB(A) | 52 dB(A) |
| Weight approx. | 56 kg | 45 kg | 32 kg |
| Dimensions (L x W x H) | 594 x 375 x 389 mm | 594 x 375 x 389 mm | 594 x 375 x 389 mm |
| Inlet port | DN 25 ISO-KF | DN 25 ISO-KF | DN 25 ISO-KF |
Markets & applications
- Heat Treatment
- Leak Detection and EoL Testing
- Space Research
- E-Beam Welding
- 3D Printing
- Leak Detection and EoL Testing (Master)
- Upgrading Pressure Swing Adsorption
- Circulation
- Upgrading Membrane
- Amine Scrubbing
- Membrane Capture
- Direct Air Capture
- Laboratory Vacuum
- Freeze Drying, Lyophilization
- Leak Detection
- Load Lock Chambers
- Plasma-enhanced chemical vapor deposition (PECVD)
- Physical vapor deposition (PVD)
- Leak Detection and EoL Testing (Master)
- Lab Vacuum
- Leak Testing Of Medical Devices
- Mass spectromer
- Die Casting
- Vacuum Sintering
- E-beam welding
- Vacuum Brazing / Soldering
- 3D Printing
- Heat Treatment
- Freeze Drying, Lyophilization
- Laboratory Vacuum
- Leak Detection
- Condenser Air Extraction
- Green Energy Generation
- Waterbox Priming
- Transformer Drying
- Transformer Oil Purification
- Freeze Drying, Lyophilization
- High Energy Physics
- Central Vacuum
- Space Research
- Ultra-High Vacuum
- Cryogenics
- Plasma Physics
- Leak Detection
- Laboratory Vacuum
- Mass Spectrometry
- Leak Detection and EoL Testing
- Mass Spectrometry
- Surface Analysis
- Electron Microscopy
- Cell Manufacturing
- Ingot Pulling
- Lamination
- Liquefaction
- Insulation Vacuum
- Gas Transport
- Bottle Filling
- Optical Coating
- Decorative Coating
- Lab coating
- Glass Coating
- Wear Protection Coating
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