Intrinsic Safety Barrier for Encoders
The BEI Sensors Intrinsic Safety(IS) Barrier is the perfect complement to BEI’s Intrinsically Safe Encoders. Together with our cable assemblies they constitute a completely engineered solution for encoder operation in Class I and Class II, Division I and Division II hazardous environments. This single barrier provides both power and signal isolation for an incremental encoder with differential quadrature outputs and an index. This all-in-one approach saves the cost, inconvenience and system design time needed when using separate power and signal barriers.
This barrier is galvanically isolated and saves the added cost of maintaining a high integrity earth ground. With differential line driver outputs, this barrier can be used to carry signals up to 500 feet with a bandwidth of up to 250 kHz.
The IS Barrier is designed around a standard DIN Rail mounting (Type EN 50 022, 35 mm X 7.5 mm) for easy installation in standard enclosures. The barrier has a non-incendive rating and can be installed in Class I, Division II areas.
IS Barrier Certifications
The BEI Intrinsic Safety Barrier has the following certifications allowing intrinsically safe encoders to be installed in the following hazardous locations consistent with the encoder specifications:
EN 61000-6-4 and 61000-6-2
U.S., Canadian Standards Class I, Group A,B,C&D; Class II Group E,F,G; Zone 0, Group IIC
CENELEC/ATEX EX ia IIC T4
IECEx Ex nA [ia Ga] IIC T4 Gc
Data Sheet (PDF - 532KB)
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