Moore Industries SFY functional safety frequency-to-DC transmitter

Friday, 24 March, 2017 | Supplied by: Moore Industries Pacific Inc

The SFY is a functional safety frequency-to-DC transmitter. The 2-wire loop-powered SFY is suitable for use in safety instrumented systems in a wide range of process and factory automation monitoring applications, providing reliable and accurate monitoring of frequency or pulse signals in an SIS. The SFY is approved for single use in an SIS up to SIL 2 and in a redundant architecture (1oo2, 2oo3, etc) up to SIL 3.

The SFY helps provide over-speed protection by sending signals that warn the logic solver to alarm or shut down, and has been certified by exida to ensure conformance with IEC 61508:2010. Users in industries such as oil and gas, chemical, power generation, pulp and paper and petrochemicals will find the SFY suitable for use in a wide variety of applications including turbine flow meters, magnetic pickups, dry contact closures, variable frequency drives, turbine tachometer generators, rotating equipment, motor and conveyor speed as well as pulse and frequency output transducers.

For example, the SFY can be used to read a signal from a magnetic pickup to the compressor shaft, providing a frequency output. The SFY converts it to a 4–20 mA output proportional to the compressor shaft speed and transmits it to the SIS Logic Solver.

Comprehensive FMEDA certified safety data is available on request. The SFY is input-to-output isolated and RFI/EMI protected, making it resistant to unpredictable ground loops and the harmful effects of plant and equipment noise. It is also available in explosion-proof/flameproof housings for use in hazardous environments.

Phone: 02 8536 7200
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