VEGA FLEX 81 VEGAFLEX 81 TDR sensor for continuous level and interface measurement of liquids

$1,780.00

The VEGAFLEX 81 TDR sensor utilizes advanced guided wave radar technology for accurate continuous level and interface measurement of liquids. This reliable instrument detects both the main liquid level and the interface between two immiscible liquids with high precision. Ideal for chemical processing, oil and gas, and storage applications, it maintains stable performance even in challenging conditions with foam, turbulence, or varying dielectric constants. With robust construction and minimal maintenance requirements, the VEGAFLEX 81 provides dependable continuous monitoring for complex liquid measurement applications where reliability and accuracy are essential.

VEGAFLEX 81 TDR sensor for continuous level and interface measurement of liquids

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
Measuring range - Distance

75 m [Meter – Foot]

Process temperature

-60 … 200 °C [°C – °F]

Process pressure

-1 … 40 bar [Bar – kPa – psi]

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
Two-wire: 4 … 20 mA/HART
Modbus
Four-wire: 4 … 20 mA/HART

Ambient temperature

-40 … 80 °C

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
KTL Korea
UKEX

Explosion protection

Intrinsic safety "i"
Flameproof enclosure "d"
Dust ignition protection "t"

Foodstuffs/Pharma

FDA

Ship approval

ABS
BV
CCS
DNV
LR
NK
RINA

Overfill protection

WHG
VLAREM II

SIL qualification

SIL2

Adjustment

PLICSCOM
PC, PACTware and DTM
HART-Communicator
Software (e. g. AMS™, PDM)

Indication

Display/adjustment module PLICSCOM
VEGADIS 81
VEGADIS 82

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