Our Fundamental Selection instruments feature an extended 5-year warranty – a clear testament of our trust in their long-term reliability and performance.
Should a warranty case occur, you can count on a fast replacement process and minimal administrative effort – giving you peace of mind when it matters most and helping you keep your operations running smoothly.
Warranty terms apply
The extended warranty is subject to specific conditions. For full details, please refer to the locally applicable General Terms and Conditions (GTC), which can be found on the respective country page of our website.
The RNF22 is a power and error message module that provides a redundant 24 VDC supply voltage to the DIN rail interface bus connector system for safe operations in hazardous areas. Intelligent error diagnostics alert of power supply failure, NAMUR group error messages or fuse error via a relay contact and a flashing LED. The compact interface module is protected against overvoltage and reverse polarity via diode decoupling.
Power and error message module for safe and reliable operations in hazardous areas
Single or redundant 24 VDC supply voltage, up to 3.75 A supply current
Relay output for error message
Group error evaluation of connected NAMUR isolating amplifiers (RLN22)
Activation/deactivation of group error detection via DIP switch
Ambient temperature range: –20 to 60 °C (–4 to 140 °F)
Benefits
Safe and reliable 24 VDC interface power supply, single or redundant
Intelligent diagnostics built-in: power supply failure or fuse error
Quick and easy wiring with plug-in terminals
Compact housing: 17.5 mm (0.69 in) for efficient use of space in control cabinets
Digital communications now provide a wealth of additional diagnostic and other information, enabling operational insights unachievable with simple 4-20mA measurements alone.
Solutions for the loop Indicators, interface devices, surge arresters, energy and application managers, data managers, paper less recorders and associated software packages for process automation
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