Pfeiffer Series Internal Leak Standard - Precision Calibration Leak for Helium Leak Detectors

This Pfeiffer Series Internal Leak Standard is engineered for calibrating and maintaining helium leak detectors like the ASM340, ASM390, and ASM310. Utilizing advanced micro-channel capillary technology, it delivers precise and stable leak rates (1.0-8.0E-7 mbar·L/s for He4) with ±10% tolerance. The leak standard features a durable all-aluminum construction for extended lifespan and supports custom gas options (He4 standard).

With standardized and customizable interfaces, it seamlessly integrates into Pfeiffer systems for internal calibration. Includes options for CNAS-certified calibration. Ideal for:

Helium leak detector calibration

Semiconductor manufacturing QA

Aerospace leak testing systems

Vacuum equipment maintenance

Technical highlights:

Channel-type capillary process (0.1%/°C temp stability)

50mL gas chamber with 3%/year loss rate

Compatible with Pfeiffer 340/ASM142 interfaces

Tool-free installation

Target Applications

Primary Industries:
✔ Semiconductor fabrication
✔ Aerospace component testing
✔ Vacuum system maintenance
Equipment Compatibility:
• Pfeiffer ASM340/390/310 leak detectors
• ASM 142 calibration systems

Performance Highlights

◼ Stable Leak Rates - Capillary technology maintains ±10% tolerance
◼ Extended Durability - Thickened aluminum body resists corrosion
◼ Multi-Gas Ready - Supports He4 and custom gas configurations
◼ Traceable Calibration - Optional CNAS-certified documentation

Long-Term Reliability

5,000+ cycle lifespan under standard operating conditions

<5% leak rate deviation after 3 years of continuous use

Maintenance-free operation with annual verification recommended

Typical Application Case

Equipment: Pfeiffer ASM 340 helium mass spectrometer
Scenario: Semiconductor packaging production line
Solution: Using TK-07 built-in leak for regular equipment calibration, maintaining detection accuracy of 1.0E-7mbar.L/s to effectively control packaging airtightness quality.

Installation & Maintenance Guide

Ensure clean, contamination-free interfaces before installation

Use dedicated tools for sealed connections

Perform regular leak rate verification (recommended quarterly)

Store in dry and clean environment

FAQs about Pfeiffer Series Built-in Leaks

1、How to determine if built-in leak needs replacement?
Consider replacement when calibration deviation exceeds ±15% or response time significantly prolongs.

2、How to compensate temperature drift?
Recommend standard operation at 23±2℃. Recalibration needed for every 10℃ temperature change.

3、Does it support non-helium detection?
Customization available for Ar, N2 etc., but gas type must be specified in advance.

4、How to adapt interfaces for different helium detectors?
Provides standard interface customization for Pfeiffer/Varian/Agilent etc.

5、How to control annual loss rate?
Recommend annual CNAS certification calibration to establish loss curve.

6、Advantages of microchannel capillary technology?
Better contamination resistance and stability compared to traditional sintered leaks.

7、What if charging pressure exceeds range?
May cause nonlinear leak rate change or even capillary structure damage.

8、Can leaks be repaired on-site?
Capillary components cannot be repaired, recommend direct standard module replacement.

9、How to verify leak accuracy?
Requires cross-verification using standard leak comparison device.

10、Lead time for customized leak rates?
3 workdays for standard models, 7-15 workdays for special leak rates.