FDY
18 The Interface Solution Experts
PC-Programmable Frequency
Transmitter and Display
Appendix A: Intrinsically-Safe
Applications
This page contains information for the FDY instrument
when used within an intrinsically-safe system.
The diagram on the following page must be used for
units that are to operate in areas requiring intrinsically-
safe instrumentation.
Refer to the Special Conditions outlined below before
proceeding with installation.
Special Conditions of Use
The following instructions must be adhered to when
the FDY is used in hazardous ‘Classifi ed’ locations and
potentially explosive atmospheres.
1. The FDY Power Supply/Output must only be
connected to a intrinsically-safe certifi ed Barrier or other
associated apparatus.
2. Entity parameters must be adhered to, as specifi ed
in the following diagram located on next page.
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