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Testing Adaption
Ergonomics

When designing customer-specific test adaptations, we emphasize safe and easy handling. Display and operating elements are designed and manufactured in compliance with current ergonomic guidelines. Hose and cable connections must not impede handling. Operating and display elements must be arranged in the operator’s direct action area.

 

Experimental Department

 

Testing – Recognition – Development.
Our experimental department is available for the testing of alternative methods for leakage measurement. Documented wage leakage inspection of smaller quantities for test equipment release as well as the production of test adaptations are centrally handled here.
The following systems are permanently available:

  • Multi-gas mass spectrometer down to 1 x 10E-7 mbar l/s
  • SF6 Leak detector down to 1 x 10E-8 mbar l/s – 0.1 ppm
  • SF6 Photoacoustic detection system down to 0.3 ppb
  • VOC PID gas detector down to 1 ppb
  • Climatic chamber – 40°C…. + 110°C // 20%… 95 % rH
  • Helium mass spectrometer Leak detector down to 1 x 10E-12 mbar l/s

Special Equipment

Small series or single components are produced according to customer specifications in our special measuring technology department. The respective tasks are always presented to the entire ISM project team in order to develop a wide range of solutions.
Good design and an appealing, application-oriented surface treatment are becoming an increasingly important criterion in ensuring motivated and gentle handling of the test equipment by production staff.
Complex software in combination with modern touch screens allows a significant reduction of operating elements. Controls and displays are made visible as required by the present process stage, so even untrained operators can quickly and safely use the systems.

Innovative

When it comes to new constructions or upgrading of existing systems, we always strive for the most “elegant” solution. Operation, size, handling, weight and design must harmonize perfectly with the respective test task. The resulting connecting link between the test specimen and the measuring device must be easy and safe to use for all operators. We exclusively use high quality, long service life components and seals so as to maintain uninterrupted testing for years, even in 3-shift operation.

Workable

Even complex leak detectors and measuring devices must be easy and safe to operate. The ISM integration solutions embed these systems in an industrial environment and create clearly structured interfaces to the operator. By using calibrated test standards (STDLEAK), the complete measuring unit can be checked at any time, traceable to international standards.

Test Systems, Systems - General

ISM develops and supplies individual, turnkey test systems for industrial leakage measurement. Our solutions range from pressure decay measuring devices to complex integral leak testing systems and can be used in a wide range of applications.

The selection of the method suitable for the respective application depends on many factors, such as specified maximum leak rate, the condition of the component under test, test pressure, the number of pieces to be tested as well as the test costs. With the measuring devices and special equipment currently available on the market, almost any application can be solved technically and economically efficient.

With the selection of the appropriate test method and the measuring instruments intended for this purpose, a test adaptation to accommodate the workpiece is usually also required. In the most straightforward case, the test object is connected to the measuring device via a freely movable, manually guided quick-action coupling. However, most tests require an increased degree of automation, whereby the operation is limited to loading and unloading the component under test. In this scenario, the adaptation is performed pneumatically or hydraulically by the fixture.

Things to know

How safe is the calibration?

Safety and calibration

The safety of the operating personnel is ensured by appropriate enclosures of the fixture and suitable two-hand start procedures or approved light curtains. A clear GOOD/BAD statement with acknowledgement of a BAD message by the operator and optionally monitored bad part gates prevent mixing of tested workpieces.

All leak-tightness measuring devices supplied by ISM are checked by means of certified calibration standards, which are usually installed in a tight workpiece. When the sealing cap of the calibration leak is opened, the system must indicate “BAD”, whereas  a “GOOD” indication must appear when the leak is closed. This test confirms the perfect functionality of the entire testing system from the adaptation of the test object to the measuring instrument.

 

Is it possible to measure a pressure drop?

Pressure drop

Pressure drop measurement is the most cost-effective test method for serial parts – dry, clean and widely used. By the use of special measuring instruments (e. g. micro-volume), pressure drop measurement is now also suitable for tasks that were previously beyond the scope of differential pressure technology.

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