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Tank gauging
Tank Side Monitor NRF81

Field gateway for tank sensor operation, monitoring and integration into inventory control system

  • Tank Side Monitor NRF81 ©Endress+Hauser
  • Tank Side Monitor NRF81 ©Endress+Hauser

The Tank Side Monitor NRF81 is a sensor integration and monitoring unit for bulk storage tank gauging applications. It integrates various level, temperature and pressure tank sensor data into a control host system. Various selectable alarms and outputs.


  • Hardware and software developed according to IEC 61508 up to SIL3 (in homogeneous redundancy) for high level of safety

  • Intrinsically safe power supply and communication for Micropilot and Levelflex radar level devices

  • Simplified installation and trouble-free operations due to easy connection to major DCS systems via open protocols

  • Approved for use in explosion-hazardous areas

Field of application

For power supply and signal transmission of the connected devices. Parameterization of the connected devices and display of the measured values. Tank calculations for accurate correction of the tank distortions. Weights & Measure-approved for use in custody transfer applications.

  • Output: Modbus EIA485 (RS485), Sakura V1

  • Temperature: -40 to 60°C (-40 to 140°F)

  • International explosion protection certificates

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Endress+Hauser Inc.
2350 Endress Place Greenwood , IN 46143 United States
Tel.: 888-363-7377
Fax: 317-535-8498
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