vegapuls 68 radar level transmitter information

8/13/2019 VEGAPULS 68 Radar Level Transmitter Information

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VEGAPULS 68 A NEW ERA IN BULK SOLIDS MEASUREMENT



Why Use theVEGAPULS 68?

The VEGAPULS 68 is a 2-wire radar gauge for measurement of

solids. Tired of not having a measurement during ll or empty cycles,

or losing the measurement signal due to dust? The VEGAPULS

68 eliminates such obstacles by combining the advantages of

radar technology with the special requirements of bulk solids

measurement.

VEGAPULS 68 Benets:

• Non-contact measurement

• Measuring range up to 230 ft (70 m)

• Unaffected by dust, angle of repose, and temperature• No signal loss with pneumatic lling

• Reliable measurement due to wide dynamic range of sensor

• For products with very low dielectric constant (from 1.4)

• Hazardous area approvals

• Plics compatible

• Two-wire



Principles of OPERATION

Horn Antenna

The microwaves are focused from the horn

antenna via a PTFE cone in the antenna and

directed to the product surface. The precision-

designed antenna rim ensures low antenna noise

and high sensitivity at close range.

Advantages

• Optimal focusing with small antenna

diameters

• Easy mounting even in small connections

• Precision-designed horn

• High sensitivity especially at close range• Swivel mount available

• Beam angle:

Cone 1.5” (40 mm) 22°

Cone 2” (48 mm) 18°

Cone 3” (75 mm) 10°

Cone 4” (95 mm) 8°

Parabolic Antenna

At the focal point of the parabolic reector is the

well-protected “feed system.” Microwave signals

are sent up from the feed system and focused via

the antenna surface. The entire antenna system

can be detached for easy mounting.

Advantages

• Removable antenna system for small

process ttings

• Insensitive to contamination and damage

through recessed feed system

• Consistent emitted signal without interfering effects

• Trouble-free mounting in standard nozzles

• Swivel mount available

• Beam angle: 3.5°

Removable

antenna system

Parabolic

reector

Feed system

Precision-designed

antenna rim

Rugged

antenna design

Horn antenna



BENEFITSThe VEGAPULS 68 is able to reliably measure all types of

solid materials in all types of industries. Through the use of

microwave radar, the VEGAPULS 68 solves many of the

problems usually associated with solids applications.

Compare the VEGAPULS 68 against traditional

technologies for solids measurement:

Radar Measurement Guided Ultrasonic Capacitivewith VEGAPULS 68 Microwave

Non-contact measurement n n

2-wire technology n n n

Measurement during filling n n n

Unaffected by dust n n n

Unaffected by air flow n n n

Unaffected by noise generation n n n

Unaffected by mechanical loads n n

Unaffected by material characteristics n n n

Reliable in narrow silos n n n

Easy mounting n n

Measuring range > 100 feet n n

Unaffected by high temperatures n n n

Maintenance-free n n



• Grains

• Flours

• Sugar

• Soybeans

• Malt, Hops, Barley

FOODS

CHEMICAL

ENERGY

AGGREGATES & MINING

• Plastics

• Catalyst

• Powders, Flake

• Fuel storage

• Ash systems

• Coal, Fuel

• Ore storage

• Clinker

• Preheater

• Lime, Coal, Cement

• Building materials

APPLICATIONSVIRTUALLY UNLIMITED.



4170 Rosslyn Drive

Cincinnati, Ohio 45209

toll free: 1.800.FOR.LEVEL

telephone: 513.272.0131

fax: 513.272.0133

web: www.ohmartvega.com

e-mail: [email protected]

SPECIFICATIONS

at a glanceMeasuring range: 230 feet

Dynamic range: approx. 110 dB

Accuracy: +/- 15 mm

Response time: 2-4 seconds

Electrical connection: 2-wire 4...20 mA

(HART), 4-wire 4...20 mA (HART),

Profibus PA, Foundation Fieldbus

Frequency range: K-Band

Antenna types: Horn, Parabolic

Temperature: -40°...+392°F

vegapuls 68 radar level transmitter information

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