MSF-F115K Differential Pressure Air Tightness Tester

Overview

The MSF-F115K measures leak rate by the differential-pressure method. The part and a reference sample are pressurised together; the valve then closes and any leakage in the part shows up as a small pressure difference between the two circuits. Because both circuits sit in the same environment, ambient temperature drift acts on both of them equally and cancels out – which is why this method holds a stable reading on small leaks and on large parts.

Key features

• Resolution 0.01 Pa – resolves leaks that a 1 Pa direct-pressure instrument cannot see
• Accuracy up to FS 0.05 % over a ±500 … ±10 000 Pa span
• Independently developed high-pressure pneumatic sealing valve – the valve is usually the source of drift on cheaper benches
• Little influence from outside fluctuation, so readings stay repeatable across a shift
• Multiple communication interfaces, multiple languages, dual password protection

How the measurement works

Reference and test circuits are filled at the same time, then the pneumatic shut-off valve closes. If the part leaks, the pressure in the test circuit falls; a differential-pressure sensor measures the resulting difference between the reference and the test circuit. Since both circuits are exposed to the same ambient conditions, external influences cancel out and precision improves.

Technical data

Typical applications

• Automotive parts – connectors, sensors, castings
• Power-battery packs and cooling circuits
• Medical devices – catheters, IV sets, blister packs
• Valves, fittings and pipe assemblies
• 3C electronics and smart wearables