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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

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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

Secondary desalter

Interface measurement in the secondary desalter

Interface measurement in the secondary desalter

To the application

Flare knockout drum

Level measurement in the flare knockout drum

To the application

Oil skim tank

Level measurement and point level detection in the oil skim tank

Level measurement and point level detection in the oil skim tank

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
IP 66/IP 68 (0.2 bar)
IP 66/IP 67
IP 66/IP 68 (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

Operating instructions

VEGAFLEX 81

4 … 20 mA/HART - two-wire

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Product information

VEGAFLEX 81, 83, 86

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Product catalog

Guided radar

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Specification sheet

VEGAFLEX 81

4 … 20 mA/HART - two-wire

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Further downloads for this product

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

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Indicating instruments
Controllers
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Separating instruments
Overvoltage protection instruments
Components
Accessory
Spare parts
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