Close

Telephone consultation

You’d like to talk with an expert? You’re looking for the ideal sensor for your requirements? Then call us. We’ll be glad to help you select the right instrument.

You’ll be connected with your VEGA consultant via our switchboard:

+1 513 2720131

Service hotline

If you need service, feel free to call our 24-hour hotline, available seven days a week. Only normal call charges are incurred:

+49 1805 85 85 50


VEGA Americas service line

For assistance during normal business hours, call:

+1 844-VEGA-NOW (834 2669)

+1 800-367-5383 (Toll free)

‹ Back to the list of results

VEGAFLEX 81

TDR sensor for continuous level and interface measurement of liquids

Universal TDR sensor for liquids of all kinds


Application area

Cable, rod or coaxial sensor. Even in applications with steam, buildup, foam or condensation, the sensor delivers precise and reliable readings – also in standpipes or bypass pipes.

The VEGAFLEX 81 level sensor measures maintenance-free all kind of liquids. Even in applications with vapour, buildup, foam generation and condensation, the sensor delivers precise and reliable measured values. The VEGAFLEX 81 is the economical solution for various level and interface measurements.

Your benefit

  • The guided adjustment enables a simple, time-saving and reliable setup
  • Shortenable probes offer a simple standardisation and highest flexibility in the planning
  • Comprehensive diagnostic possibilities ensure a maintenance-free operation and hence a high plant availability

Configure product

Configure product
Application
Technical specifications
Documentation
Accessories
Configure product

The ace for level measurement and interface measurement in all liquids

The VEGAFLEX 81 guided radar sensor is exceptional when it comes to measuring the level or interface of liquids. Guided radar is extremely versatile and can be found in almost every industrial sector. Whether bitumen or liquefied gas, in storage containers or standpipes, in a metering tank or in tank farms – VEGAFLEX 81 measures the level or interface (separation layers) of liquids with great reliability and accuracy.

Guided radar delivers reliable measurements data for control or safety systems for

  • Level measurement in ammonia storage tanks
  • Level measurement in standpipes
  • Interface measurement in storage tanks, bypass tubes, standpipes

Other applications

Secondary desalter

Interface measurement in the secondary desalter

Interface measurement in the secondary desalter

To the application

Water separator

Level measurement in the water separator and pressure measurement upstream of the vacuum pump

Level measurement in the water separator and pressure measurement upstream of the vacuum pump

To the application

Anhydrous ammonia storage tank

Level measurement and point level detection in the anhydrous ammonia storage tank

Level measurement and point level detection in the anhydrous ammonia storage tank

To the application

BTX separators

Level measurement and point level detection in the BTX separators

Level measurement and point level detection in the BTX separators

To the application
Technical specifications
Measuring range - Distance
75 m
Process temperature
-60 ... 200 °C
Process pressure
-1 ... 40 bar
Accuracy
± 2 mm
Version
Basic version for exchangeable cable ø 2; ø 4 mm
Basic version for exchangeable rod ø 8 mm
Basic version for exchangeable rod ø 12 mm
Coax version ø 21.3 mm for ammonia application
Coax version ø 21.3 mm with single hole
Coax version ø 21.3 mm with multiple hole
Coax version ø 42.2 mm with multiple hole
Exchangeable rod ø 8 mm
Exchangeable rod ø 12 mm
Exchangeable cable ø 2 mm with gravity weight
Exchangeable cable ø 4 mm with gravity weight
Exchangeable cable ø 2 mm with centering weight
Exchangeable cable ø 4 mm with centering weight
Exchangeable cable ø 4 mm without weight
exchangeable, PFA-coated cable ø4 mm with non-coated centering weight
Materials, wetted parts
PFA
316L
Alloy C22 (2.4602)
Alloy 400 (2.4360)
Alloy C276 (2.4819)
Duplex (1.4462)
304L
Threaded connection
≥ G¾, ≥ ¾ NPT
Flange connection
≥ DN25, ≥ 1"
Seal material
EPDM
FKM
FFKM
Silicone FEP coated
Borosilicate glass
Housing material
Plastic
Aluminium
Stainless steel (precision casting)
Stainless steel (electropolished)
Protection rating
IP66/IP68 (0,2 bar)
IP66/IP67
IP66/IP68 (1 bar)
Output
Profibus PA
Foundation Fieldbus
4 … 20 mA/HART - two-wire
Modbus
4 … 20 mA/HART - four-wire
Ambient temperature
-40 ... 80 °C
Approvals
Scope
ATEX / Europe
CSA / Canada
FM / USA
EAC (GOST) / Belarus
EAC (GOST) / Kazakhstan
EAC (GOST) / Russia
IEC / worldwide
NEPSI / China
UKR Sepro / Ukraine
INMETRO / Brazil
CCOE / India
Explosion protection
Intrinsic safety Ex ia
Pressure-tight encapsulation Ex d
Protection through housing St Ex
Foodstuffs/Pharma
FDA
Ship approval
ABS
BV
CCS
DNV
GL
LR
NK
RINA
Overfill protection
WHG
VLAREM II
SIL qualification
SIL2
Display & adjustment
Adjustment
PLICSCOM
PC, PACTware and DTM
HART-Communicator
Software (e. g. AMS™, PDM)
Indication
Display/adjustment module PLICSCOM
VEGADIS 81
VEGADIS 82

Drawing generator

Generate 2D and 3D drawings for your specific configuration.

Configure Now

Operating instructions

VEGAFLEX 81

4 … 20 mA/HART - two-wire

    • EN
    • DE
    • CS
    • ES
    • FR
    • HU
    • IT
    • KK
    • NL
    • PL
    • PT
    • RU
    • TR
    • UK
    • ZH
Download

Product information

VEGAFLEX 81, 83, 86

    • EN
    • DE
    • ES
    • FR
    • IT
    • NL
    • PT
    • RU
    • TR
    • US
    • ZH
Download

Product catalog

Guided radar

    • EN
    • DE
    • CS
    • ES
    • FR
    • IT
    • NL
    • PT
    • RU
    • TR
    • ZH
Download

Specification sheet

VEGAFLEX 81

4 … 20 mA/HART - two-wire

    • EN
    • DE
    • ES
    • FR
    • IT
    • NL
    • PT
    • RU
    • TR
    • US
    • ZH
Download

Drawing generator

Generate 2D and 3D drawings for your specific configuration.

Configure Now

Further downloads for this product

All documents and software for this product can be found in our Download Center.

Show all downloads
Indicating instruments
Controllers
Overvoltage protection instruments
Components
Accessory
Spare parts
Our recommendation

PLICSCOM

PLICSCOM Steckbares Anzeige- und Bedienmodul

Measured value indication and adjustment of plics® sensors

Show Product

Bluetooth USB adapter

USB Dongle

Wireless adjustment of sensors and instruments via Bluetooth

Show Product

VEGADIS 81

VEGADIS-81-digital-display-adjustment-unit-VEGA-sensors

Remote measurement value indication and adjustment of plics® sensors

Show Product

VEGADIS 82

External measured value display and adjustment for 4 ... 20 mA/HART sensors

Show Product

VEGADIS 176

Remote display for use in 4 ... 20 mA current loop

Show Product

VEGAMET 381

VEGAMET381EX Auswertgeraet und Anzeigeinstrument fuer Fuellstandsensoren

Measured value display and simple control functions

Show Product

VEGAMET 391

VEGAMET391 Auswertgeraet und Anzeigeinstrument fuer Fuellstandsensoren

Measured value indication, simple control functions, remote enquiry of measured data. optimized for water/sewage water industry

Show Product

VEGAMET 624

VEGAMET625 Auswertgeraet und Anzeigeinstrument fuer Fuellstandsensoren.png	352 KB		 VEGAMET624 Auswertgeraet und Anzeigeinstrument fuer Fuellstandsensoren

Measured value indication, simple control functions such as remote enquiry of measured values for a 4 ... 20 mA/HART sensor

Show Product

VEGAMET 625

VEGAMET625 Auswertgeraet und Anzeigeinstrument fuer Fuellstandsensoren

Measured value indication, simple control functions such as remote enquiry of measured values for two HART sensors

Show Product

VEGASCAN 693

Signal conditioning instrument for up to 15 HART sensors

Measured value indication and remote enquiry of measured data for up to 15 HART sensors

Show Product

VEGATOR 141

Single channel signal conditioning instrument for level detection - 4 … 20 mA

Transmission of 4 ... 20 mA signals for level signalling

Show Product

VEGATOR 142

Double channel signal conditioning instrument for level detection - 4 … 20 mA

Transmission of 4 ... 20 mA signals for level signalling

Show Product

Overvoltage protection B 63-32

Überspannungsschutz B63

Overvoltage protection for Profibus PA and Foundation Fieldbus circuits

Show Product

Overvoltage protection B 63-48

Ueberspannungsschutz-B63

Overvoltage protection for two-wire circuits

Show Product

VEGACONNECT

VEGACONNECT Schnittstellenadapter VEGACONNECT

Interface adapter between PC and VEGA instruments

Show Product

VEGABOX 03

VEGAFLEX series 80 cable and rod components

VEGAFLEX series 80 probe extensions

VEGAFLEX series 80 spacers

Spacers or centering weights fix the measuring probe in the middle of the tube.

Show Product

VEGAFLEX series 80 centering/gravity weights

Electronics VEGAFLEX serie 80

Loading device data
Configuration is being created
Loading configuration
An error occured while sending the last request. Please try again. ({{httpErrorStatusCode}})

An error has occurred

An error occurred when starting the configurator. We have documented the error and are working on it.
Please try again later. Alternatively you can contact us directly.

Thank you very much for your understanding.

### Einstellungen

Prices, delivery times & more

Log in to myVEGA to get the full functionality.

  • Prices & delivery times
  • Offers & orders
  • 2D & 3D drawings
  • Save configurations

Register now