Instrumentation • Electronics
Testing methods
The sealing test methods used by Fischer Connectors to evaluate the degree of sealing protection are categorised in three classes. Environmentally sealed connectors designed to offer a
sealing up to IP 68 are qualified through a 24-hour test at a water depth of 2m. For hermetic connectors
sealed IP69K and beyond which are designed to be used in high vacuum chambers, Fischer guarantees a leakage smaller than 10-8
mbar·l/s by testing
each manufactured piece with a helium mass spectrometer. For special applications
exposed to liquid under high pressure, Fischer can test the parts up to 12 bar gradient in liquid environment (120 meter water column). For higher pressures, Fischer is working with different external labs depending on the customer’s pressure requirements. Fischer Connectors’ guarantees the customer that the solution meets their needs through the most adapted testing methods (internal, external labs or field testing).
Fig . 4. O-rings, here in green and potting the contacts of the panel- mounted connectors are efficient mechanical sealing methods.
CONTROLLER FOR DIMENSION MEASUREMENT WITH DISPLACEMENT SENSORS
Thickness Planarity Mismatch
Deflection
Width, Length Height, Depth
Fig. 5. Fischer UltiMate™ cable plugs offer IP68/69K sealing level even unmated with overmoulding and highly performing epoxy potting.
The connector and its associated cabling solution must be considered integral parts of the complete system. They should consequently be integrated in the product development process at the earliest stage. When the operating environment demands faultless reliability and exposure to special conditions, engineers are indeed challenged beyond simply identifying and addressing basic connection requirements. l
Enter 21A or ✔ at
www.engineerlive.com/ede
Stéphane Rohrbach is Engineering Director at Fischer Connectors SA, Saint-Prex, Switzerland.
www.fischerconnectors.com
Comprehensive processing functions For digital or analogue sensor signals Automatic sensor detection High processing speed Real-time processing
www.micro-epsilon.com
MICRO-EPSILON 94496 Ortenburg / Germany Tel. +49 85 42/168-0
info@micro-epsilon.com
Circle 21 or ✔ at
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