KROHNE Altosonic III Data sheet

©

KROHNE 12/2004 7.02391.22.00

Technical Data Sheet

GR

Subject to change without notice.

Electromagnetic flowmeters
Variable area flowmeters
Mass flowmeters

Ultrasonic flowmeters

Vor tex flowmeters
Flow controllers
Level measuring instruments
Pressure and temperature
Heat metering
Communications technology
Switches, counters, displays and recorders
Engineering systems & solutions

ALTOSONIC III
3-Beam ultrasonic flowmeter

for custody transfer of
liquid hydrocarbons

 Designed for custody transfer of light

products

 Long-term stability and high reliability
 Eliminates maintenance
 Non-intrusive
 No wear
 No pressure loss
 Bi-directional
 Compliant with OIML R-117, API

2ALTOSONIC III

 Custody transfer of light

hydrocarbon products

 Fiscal metering

 Duty metering

(with the ALTOSONIC V as
reference meter)

 Allocation metering

 Pipeline leak detection

Fields of application

 Refineries

 Pipeline systems for refined

products

 Terminal loading and offloading

of refined products

 Truck and rail loading

ALTOSONIC III

The flow metering
solution for the oil
and petrochemical
industry

ALTOSONIC III

3-Beam ultrasonic flowmeter for custody transfer
of liquid hydrocarbons

Eliminates maintenance

KROHNE is innovation

The introduction of the ALTOSONIC V, the highly accurate, five-beam liquid ultrasonic
flowmeter in the 1990's for multiple products was a true revolution in the flow market for
custody transfer and master metering.

Over the past years ultrasonic flowmeters have gained full acceptance and have become
the fastest growing flow metering technology in the world. KROHNE's UFM 3030, the first
truly universal and easy to use ultrasonic flowmeter for process applications, created a
breakthrough in the widespread application of ultrasonic flowmeters worldwide.

Introducing ALTOSONIC III

Now, KROHNE is proud to introduce the ALTOSONIC III, an innovative and economical
solution for custody transfer of light oil products. The 3-beam ALTOSONIC III is the outcome
of our revolutionary development of liquid multiple beam ultrasonic flowmeters. It combines
innovative technology with long-term experience to guarantee superior performance at an
attractive price.

KROHNE is experience

The ALTOSONIC III is the result of years of experience in the field with ultrasonic
flowmeters for custody transfer including fiscal metering for a very wide range of
applications.
25 Years ago KROHNE was already one of the pioneers in ultrasonic flow metering. In line
with our vision, we continue to develop and perfect a wide range of single and multiple
beam ultrasonic flowmeters for liquids and gases. Since 1980 over 30,000 KROHNE
ultrasonic flowmeters have been installed showing reliable and trouble-free operation.

KROHNE is quality

It is KROHNE's policy to calibrate each flowmeter that leaves our factory by means of wet
calibration to guarantee the highest possible accuracy and quality. Therefore KROHNE
owns accredited calibration rigs that comply with the most stringent demands (according to
IEC-ISO 17025).

ALTOSONIC III

3ALTOSONIC III

A cost effective ultrasonic flowmeter concept for custody transfer

 Excellent repeatability

 Reliable flow measurement with long-term stability

 Large dynamic range: measures from zero flow up to 20 m/s.

 Light, compact and robust flowmeter

 Bi-directional

 Compliant with OIML R-117 and API

 Integrated diagnostics

ALTOSONIC III
The alternative for conventional flowmeters

The ALTOSONIC III offers decisive advantage over mechanical flowmeters
like turbine meters and PD meters.

 No obstructions in the pipeline

ALTOSONIC III has no parts protruding the flow, in other words no
risks of flow obstruction or blockage.

 No moving parts

ALTOSONIC III has not a single internal moving part that can break
down or suffer neither from wear caused by corrosive or abrasive
fluids, gas and solids or from build-up like wax. This means mainte­nance-free and excellent long term stability.

 No filters

For ALTOSONIC III filters are not required, which results in costs
savings on regular inspection, maintenance and cleaning of filters
and no additional pressure drop.

 Low pressure drop

Unrestricted flow means no loss of pressure. Reducing pressure drop
means smaller pump capacity, improved pipeline efficiency, and
savings on energy costs.

 Minimal maintenance

and substantial savings in cost of ownership.

Multi-channel ultrasonic flow measurement

Like all KROHNE ultrasonic flowmeters,
ALTOSONIC III operates by the transit-time
differential method. The measurement principle
is based on a simple physical principle. Imagine
two canoes crossing a river diagonally, one with
the flow and one against the flow. Naturally the

canoe that is travelling with the flow will reach the opposite side sooner than
the canoe that is travelling upstream. Acoustic signals behave in a comparable
way.

By means of patented ultrasonic transducers, the transit time of acoustic
signals that travel upstream and downstream are measured. The difference in
transit time is proportional to the mean liquid flow velocity and is transformed
into an output signal and display of volumetric liquid flow rates.

The 3 measuring beams of the ALTOSONIC III make a 3-dimensional cross­section of the velocity distribution, or flow profile of the medium that flows
through the flow sensor. These measuring beams are positioned such that the
influence of the flow profile is strongly reduced.

ALTOSONIC III

eliminates maintenance in flow metering

4ALTOSONIC III

The responsibility as to the suitability, intended use and corrosion-resistance of the materials used in
their construction rests solely with the purchaser.

Versions

ALTOSONIC III/C-EEx

UFS-III/F-EEx

UFC-III/F-EEx

Approvals

Maximum solid particle content < 5% (by v olume)

Maximum gas content < 2% (by v olume)

OIML R-117 Class 0.3

ANSI/API MPMS 5.8-2004

Performance

Custody transfer

API MPMS Chapter 5 Section 8, M easurement of Liquid H y drocarbons by

Ultrasonic Flowmeters U sing Transit Time Technology
Viscosity

Up to 10 cS t for standard operation. For higher v iscosities contact KROH N E

< 1 mm/s

< ± 0.027% conforms to AP I standard

 UFC III C flow converter directly mounted on UFS III C flow sensor

Process conditions
Zero stability

ALTOSONIC III is available in a separate and in a compact v ersion and consists of a UFS III ultrasonic flow sensor combined

with a UFC III ultrasonic flow conv erter to make a complete flowmeter. Both the sensor and conv erter are approv ed for use in

hazardous areas.

Measurement functionality

Measuring range

< ± 0.15% of measured v alue (under reference conditions)

Linearity

ALTOSONIC III C (compact)

ALTOSONIC III F (separate)

Uncertainty

Repeatability

CSA Class I, Div . 1 & 2, G roups A, B, C & D

 UFC III F flow converter remotely mounted from UFS III F flow sensor

Standard actual volume

0 to 20 m/s (0 ft/s to 66 ft/s), higher flow v elocities on request

< ± 0.05%

EEx zone 1 (ATEX)

CSA Class II, Div. 1 & 2, Groups E, F & G

II 2 G EEx d [ib] IIC T6 …T3 or II 2 G EEx de [ib] II C T6 … T3

II 2 G EEx ib IIC T6 …T3

II 2 G EEx d [ib] IIC T6

FM Class I, Div . 1 & 2, G roups B, C & D

 Standard  Optional - On request

ALTOSONIC III Ultrasonic flowmeter

FM

CSA

CSA Class III, Div. 1

FM Class II, Div. 1, Groups E, F & G and Div . 2, Groups F & G

FM Class III, Div. 1 & 2

ALTOSONIC III

min. max. min. max. min. max. min. max.

Compact -25°C 140°C -40°C 70°C Compact -13°F 284°F -40°F 158°F

Separate -25°C 180°C -40°C 70°C Separate -13°F 356°F -40°F 158°F

Process temp.

Ambient temp.

°C

Process temp.

Ambient temp.

°F

Temperature Limits