Tank gauging - Tank Side Monitor NRF81

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Field of application

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

Benefits

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

Xpert selection

Specialized products
Designed for demanding applications

Technical excellence

Simplicity

Variable

What is FLEX?

Xpert: Master your most challenging applications

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Predecessor

Tank Side Monitor NRF590

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Simple products
Easy to select, install and operate

Technical excellence

Simplicity

What is FLEX?

Standard products
Reliable, robust and low-maintenance

Technical excellence

Simplicity

What is FLEX?

High-end products
Highly functional and convenient

Technical excellence

Simplicity

What is FLEX?

Specialized products
Designed for demanding applications

Technical excellence

Simplicity

Variable

What is FLEX?

FLEX selections	Technical excellence	Simplicity
F L E X Fundamental selection Meet your basic measurement needs	Technical excellence	Simplicity
F L E X Lean selection Handle your core processes easily	Technical excellence	Simplicity
F L E X Extended selection Optimize your processes with innovative technologies	Technical excellence	Simplicity
F L E X Xpert selection Master your most challenging applications	Technical excellence	Simplicity Variable

Learn more about the FLEX selections

Continuous / Liquids

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
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, HART
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, JPN 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

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Filter

Sealing
O-ring, housing, 177.39x3.53, TG

Sealing

Drawing number

Order code

21

71312582
Filter
Housing filter, PTFE, NMS8x, NRF81, TG

Filter

Drawing number

Order code

19

71343171
Adapter housing/cable entry
Blind plug, M20, 316L, O-ring EPDM, TG

Adapter housing/cable entry

Drawing number

Order code

14

71312592
Sealing
O-ring, blind plug, M20, EPDM, 5pcs., TG

Sealing

Drawing number

Order code

15

71312594
Cover
Front cover Alu, sight glas, gasket

Cover

Drawing number

Order code

20

71312596
Cover
Front cover 316L, sight glas, gasket

Cover

Drawing number

Order code

20

71312607
Housing/housing accessories
Cover clamp, 2 pcs., TG

Housing/housing accessories

Drawing number

Order code

17

71312627
Terminals
Terminal set, I/O module, Push-in, TG

Terminals

Drawing number

Order code

37

71324756
Terminals
Terminal set, I/O module, screw type, TG

Terminals

Drawing number

Order code

37

71324757
Display
Display set, RS485, holder, TG

Display

Drawing number

Order code

40

71312638
Display
Display holder, fixing ring, TG

Display

Drawing number

Order code

41

71312640
Electronic
Electronics, mainboard

Electronic

Drawing number

Order code

31

XPN0036-
I/O module
I/O Module NMR81/84, NRF81, NMS80/81/83

I/O module

Drawing number

Order code

33

XPN0031-

Mounting kit, pipe, DN32-50 (1-1/4"-2")

Drawing number

Order code

0

71274370
Mounting kit, pipe, DN80 (3")

Drawing number

Order code

0

71272096
Weather protection cover NMR8x, NRF8x

Drawing number

Order code

0

71292751

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Accessories

Mounting kit, pipe, DN32-50 (1-1/4"-2")

Mounting kit, pipe, DN80 (3")

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