FEMA I4F Signal converter and Isolator


Key Features

• Signals accepted: Namur, Push-pull, inductivos, NPN, pick-up, mechanical contact, PNP & TTL
• Output signal: 4-20mA and 0-10Vdc
• Universal Power Supply 18-265Vac/Dc
• Easy configuration by push-button and display
• Galvanically isolated input, output & power circuit
• Flexible DIN-rail mount


The FEMA I4F offers a range of isolated signal converters that are easily configurable, versatile and reliable for the most common industrial applications, at a low price. Its main characteristic is its versatility and the customisation option for applications.

Combined with a configurable 4/20mA or 0/10Vdc output for frequency, impulses, RPM speed and flow signals. Configurable to work with NPN, PNP, Pick-up, Namur, mechanical contact, reed contact and other sensors. The FEMA I4F has dedicated input to measure frequency from AC voltage up to 600 Vac and equipped with universal power supply 18 to 265 Vac / dc, multi-input and easily configurable through configuration codes. Additional utilities such as the “Force” function to force the output to high and low values, the “SOS” mode, the configuration of messages on the screen to locally monitor the input and output signals, and the password function to access the configuration.

The FEMA I4F accepts a wide range of frequency ranges, from 1 Hertz up to 1 MHertz, with minimum workable signal of 100 milliHertz and resolution of 1 milliHertz.

The FEMA I4F offers an interesting price reduction in exchange for a simplification of the configuration compared to higher series, offering measurement accuracy of around 0.5% and 3 acquisitions per second. The I4F benefits from economies of scale, making use of high-quality components, feeds, boxes and procedures from higher-end series.

In summary, the FEMA I4F offers superior technical characteristics in terms of precision and response times, allowing its incorporation in a multitude of industrial control, data acquisition and laboratory applications.