NRF81 Tank Side Monitor Tank gauging

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

Previous: Tank Side Monitor NRF590

• Measuring principle

  Level radar

• Characteristic / Application

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

• Specialities

  Hydrostatic Tank Gauging (HTG)

• Supply / Communication

  85-264VAC
  52-74VAC
  19-64VDC

• Ambient temperature

  Standard:
  -40°C…60°C
  (-40°F...140°F)
  For calibration to regulatory
  standards:
  -25°C…55°C
  (-13°F...131°F)

• Communication

  Outputs:
  Fieldbus: Modbus RS485, V1, WM550
  HART, BPM and TRL/2 (via GE option)
  Analog 4-20mA (Exi/Exd)
  Relay (Exd)
  Inputs:
  Analog 4-20mA (Exi/Exd)
  2-, 3-, 4-wire RTD
  Discrete input (Exd, passive/active)

• Certificates / Approvals

  ATEX, FM, IEC Ex, EAC, JPN Ex, NEPSI, UK Ex

• Safety approvals

  SIL
  Overfill protection WHG

• Metrological approvals and certificates

  OIML, NMi, PTB

• Options

  Redundant fieldbus
  Alu-coated or 316L housing
  Weather protection cover
  mounting kit pipe

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.

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

• 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