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Product category: Electrical and Electronic Testing
News Release from: Clare Instruments | Subject: Hal Combi tester
Edited by the Manufacturingtalk Editorial Team on 10 August 2007

Safety test streamlined for complex
product

Electrical safety testing technology installed at a control systems manufacturer has helped to streamline rigorous quality control and test procedures for a complex product.

Clare Instruments has installed electrical safety testing technology at the Tewkesbury, UK plant of Moog Controls to streamline rigorous quality control and test procedures for a complex new fuel control product As part of the introduction of an advanced technology electrically controlled fuel control manifold product utilised in aircraft, Moog upgraded its production and quality control processes by introducing of an integrated test station

Developed by Clare Instruments, the three part system has an advanced Hal Combi tester linked to a PLC interface and safety test enclosure.

This configuration enables each product to have multiple circuits tested individually to ensure full compliance with rigorous technical and quality standards.

Any circuit that fails is uniquely indicated for reworking.

The semi-automatic system carries out a range of key electrical safety tests automatically on each manifold system.

Hydraulic and other functional tests are carried out as part of the product build process and the electrical safety test station forms one of the final stages of manufacturing to confirm product compliance, quality and reliability.

The customised Clare test station features special safety interlocks that reduce operator involvement to the simple loading and un-loading of products into the enclosure.

When the enclosure door is closed the Hal Combi automatically sequences through the required earth bond (continuity), flash/hipot/dielectric withstand and insulation resistance tests on individual circuits within the product.

* Test connections - test connections are made by low-pressure insertion industrial test probes that are colour coded to match the product cabling.

The purpose designed test nest jig means the product can only be inserted in one position to eliminate loading errors and spring loaded terminals are used to enable fast connection of product wire connections.

Given the complexity of the Moog products under test and the demanding test specifications involved, the test duration for each product lasts around 40 min.

The test control unit has a series of status lamps for each of the tests carried out so that in the event of failure the operator can see which test has failed.

Illuminated test pass and test complete lamps indicate a successful test.

The test station is linked to the internal Moog data control network enabling all relevant data to be captured for production management, quality assurance and statistical analysis purposes.

With the verification of performance quality and safe operation of electrical products regarded as crucial, integrated production line safety testing has become an essential part of the Moog Controls manufacturing and compliance process.

Moog specialises in the design and development of combined hydraulic and electrical products used in a range of critically demanding control system applications in the aerospace, power generation, motor sport and other industry sectors. Request a free brochure from Clare Instruments ...

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