76 A / NB 220

Product catalog summary

Overview
FAFNIR offers a thermal overfill prevention device combining the level detector 76 A and the measuring transducer NB 220 H. This solution is designed for tanks containing water-polluting liquids, providing flexibility with acoustic or visual signals integrated into the transducer.

Key Features

Accuracy and Reliability: Quick and precise installation with a 2-wire connection, protected against reverse polarity. No maintenance or on-site calibration required, with a self-testing sensor.
Compliance: Meets the German Water Resources Act (WHG) requirements, with proven installations across Europe.
Durability: No moving parts, ensuring excellent life expectancy and reliability. The design is space-saving, robust, and corrosion-free.

Applications

Diesel tanks
Storage tanks
Oil containers
Collection basins and safety pans

Technical Specifications

76 A Level Detector: Process temperature ranges from -25 °C to +80 °C, process pressure up to 2 bar, and protection class IP67. Probe lengths range from 100 to 3,000 mm.
NB 220 Transducer: Supports various auxiliary power inputs (230VAC, 115VAC, 24VDC, 24VAC) with a maximum power input of 6 W or 4 VA. Ambient temperature ranges from -25 °C to +60 °C, with protection class IP40.

Additional Features

Integrated acoustic signals and acknowledge buttons.
Options for dry run protection.

Contact Information
FAFNIR GmbH, Schnackenburgallee 149 c, 22525 Hamburg, Phone: +49/40/39 82 07-0, Email: [email protected], Website: www.fafnir.com

Catalog excerpts

Process Automation Process Automation Level Sensors | Level Detectors | Overfill Prevention Sensors and Systems: www.fafnir.com

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Process Automation Edition 04.17 Technical changes reserved 76 A and NB 220 Protect Your Business and Environment: with 76 A and NB 220 Overfill Solution for Polluting Liquids FAFNIR’s thermal overfill prevention device; the combination of the level detector 76 A and the measuring transducer NB 220 H is the ideal solution for overfill prevention of your tanks with water-polluting liquids. Flexibility is key; with the option of having acoustic or visual signals directly integrated into the transducer, the FAFNIR solution adapts to your needs. Why Choose 76 A with NB 220? Quick and Precise ++Easy...

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Process Automation Edition 04.17 Technical changes reserved Process temperature Standard: -25 °C … +50 °C High temperature: -25 °C … +80 °C Process pressure Immersion switch delay Heating-up time Material Connection housing Brass, chrome-plated Wetted parts (without test prod) Stainless steel Spring steel, zinc-plated Vulkollan Test prod Protection class Cable terminal Cable gland Cable gland Probe tube (outer Ø) Probe length Minimum process connection Probe length Probe length All wetted parts are made of high-quality stainless steel this means the sensor is suitable, for example, for AdBlue....

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Process Automation Edition 04.17 Technical changes reserved 76 A with NB 220 NB 220 - Technical Data Name NB 220 H Number of connections 1 Level detector Power input Max. 6 W or 4 VA Outputs Potential-free changeover Switched power supply Potential-free changeover contact: AC: U < 250 V, I < 4 A, P < 100 VA; DC: U < 250 V, I < 250 mA, P < 50 W Output 1 not acknowledgeable Changeover contact; potential of auxiliary power, not acknowledgeable * Output 2 NO switch, potential of auxiliary power, acknowledgeable * Input External potential-free acknowledge button External potential-free...

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