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1

Density and Concentration Measurement

DT Series Magd Nasr Ph.Dr.Eng.

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Basic Concepts

Introduction to the DT series Transmitter

Oil & Gas Applications

DT Series

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Interface Level = 0 to 100%

100 %

0 %

Oil

Water

Interface Level Measurement MethodInterface Level Measurement Method

The interface level isproportional to the output

signal.

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Introduction

DT Series

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PRESSURE

SENSORSPRESSURE

SENSORS

TEMPERATURE

SENSOR

PROCESSCONECTION

FLANGE

ANSI B16.5

PROCESS

CONECTION

FLANGE

ANSI B16.5

CAPACITIVE CELL

ELECTRONICS

&

LOCAL LCD

DT SeriesDT Series -- ConfigurationConfiguration

Side

Mounting

Top

Mounting

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Density:

SI system unit: kg/m3

Commonly used units: g/cm3 or g/l

English system unit: lbm/ft3

A.P.I. Concentration:

Degrees: Baum, Gay-Lussac, INPM

% of Solids

Measurement UnitsMeasurement Units

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Designed for Density, Concentration & Interface level ON LINE

measurements Two-wire loop powered equipment, 12 to 45 Vdc

Communication:

4-20mA + Hart (DT301),

Foundation Fieldbus (DT302)

Profibus (DT303)

Remote monitoring and calibration using Palm Handheld and /or PC

Single integrated unit, no moving parts Local digital indicator

Direct readout in several engineering units

Process temperature indication,

Temperature variable output available only in bus version

Suitable for dynamic and static liquids

Explosion-proof and intrinsically safe

CharacteristicsCharacteristics

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Working Ranges

Ranges

Range 1 : 0.5 to 1.8 g/cm3

Range 2 : 1.0 to 2.5 g/cm3

Range 3 : 2.0 to 5.0 g/cm3

Minimum Span

Range 1 : 0.025 g/cm3

Range 2 : 0.050 g/cm3

Range 3 : 0.250 g/cm3

Accuracy

Range 1: 0.0004 g/cc

Range 2: 0.0007 g/cc Range 3: 0.0016 g/cc

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Temperature Limits

Ambient: -40 to 85 C

Process: -20 to 150 C

Static Pressure Limit:

70 Bar (1,015 psi)

Viscosity:

No known limits, already used in

liquids with 10,000 Cp

Working ConditionsWorking Conditions

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Materials

Probe

Stainless Steel 316L SST

Hastelloy C276

Diaphragm

Stainless Steel 316L SST

Hastelloy C276

Housing Aluminum Alloy

Stainless Steel 316L SST

Measurement Tank Stainless Steel 316L SST

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Process Connection

Process Connection

Flange size: 4 RF

Pressure rating: Ansi 150, 300, 600

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DT Series Features

Easy Installation

Low Maintenance

High Accuracy

No special training

Easy setup and calibration

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Typical Installation

DT Series

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Online Installation, PipelinesOnline Installation, Pipelines

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Tank InstallationTank Installation

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Separator tank InstallationSeparator tank Installation

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Applications

Exploration

Oil & Gas Production

DT Series

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Exploration Application

Drilling Mud Density

Brine Density Ballast Density

Fluid Interface

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Oil & Gas Production Applications

Online Measurement

Tank Level Interface Measurement Online Blending

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Application:

Crude oil densitymeasurement, direct in line at

90 m3/h

Online Density MeasurementOnline Density Measurement

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Application:

Vertical Separator tank

Interface Level MeasurementInterface Level Measurement

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Customer: Petrobras

Location: So Miguel dosCampos, Alagoas State,

Brazil.

Application:

Interface Level Oil / Salt

Water

Interface Level MeasurementInterface Level Measurement

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Reference Letter:

Interface Level of Oil/ Salt Water

PetrobrsPetrobrs Reference LetterReference Letter

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Customer: PetrobrasLocation: Merluza Platform,

Santos Basin, Brazil

Application:

Density of condensed gas

DT SeriesDT Series Offshore ApplicationOffshore Application

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Customer: PetrobrasLocation: Marlim Sul Field,

Campos Basin, Brazil

Application:

Interface Level Oil / Water

DT SeriesDT Series Offshore ApplicationOffshore Application

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Application:

Horizontal Crude Oil Separator tank

Interface Level MeasurementInterface Level Measurement

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Application:

Project Oil Separator tank and

Water Cut

Water Cut MeasurementWater Cut Measurement

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Application:

Oil-Emulsion-Water tank separator

Online Separation MeasurementOnline Separation Measurement

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Application:

Liquid Custody Transfer Measurement Skids

Custody TransferCustody Transfer

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Application:

Fieldbus Blending Solution

Online BlendingOnline Blending

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Application:

Fieldbus Blending Solution

Online Concentration MeasurementOnline Concentration Measurement

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END