EESiFlo EASZ 2Sd-L Manuel utilisateur

EesiFlo® is a registered trade mark of Eastern Energy Services Pte Ltd EASZ-2 Manual v1.12 - 12.2.2018

EASZ-2 Water In Oil Monitor

Installation and Operating Manual

For variants:

EASZ 2Sd-L Standard

EASZ 2Ex-L For Hazardous Areas

EASZ-2 Manual v1.12 - 12.2.2018 Page 2 / 30

CONTENTS

1. Introduction to EASZ-2

2. Technical Specification

2.1. Specification....................................................................................................................................................... 4

2.2. Intrinsically Safe Parameters.............................................................................................................................. 5

2.3. Data Plates......................................................................................................................................................... 5

2.4. Dimensions......................................................................................................................................................... 5

3. How the EASZ-2 Works

3.1. Unit Description.................................................................................................................................................. 7

3.2. EASZ-2 Variants................................................................................................................................................. 7

3.3. Functionality....................................................................................................................................................... 8

3.4. Mixing................................................................................................................................................................. 8

4. Installation

4.1. Position .............................................................................................................................................................. 9

4.2. Sampling Point................................................................................................................................................... 9

4.3. Mounting .......................................................................................................................................................... 10

4.4. Electrical Connection and Configuration........................................................................................................... 10

4.5. Cable Paths...................................................................................................................................................... 14

4.6. Pre-Wired Options............................................................................................................................................ 14

4.7. Power Supply................................................................................................................................................... 14

4.8. Detailed Connection Diagrams ......................................................................................................................... 15

4.9. Intrinsic Safety.................................................................................................................................................. 19

5. Operation

5.1. Start up............................................................................................................................................................. 20

5.2. Measuring Mode............................................................................................................................................... 20

5.3. Alarms and Backlight........................................................................................................................................ 20

5.4. Failure Messages............................................................................................................................................. 20

6. Software

6.1. Software Installation......................................................................................................................................... 21

6.2. Software Connection........................................................................................................................................ 21

6.3. Software Description ........................................................................................................................................ 22

6.4. Communication Protocols................................................................................................................................. 22

7. Calibration

7.1. Factory Default Calibration ............................................................................................................................... 23

7.2. On-site Calibration............................................................................................................................................ 23

7.3. Lab Calibration Service..................................................................................................................................... 24

7.4. High-Point Calibration Procedure...................................................................................................................... 24

7.5. Two-Point Calibration Procedure...................................................................................................................... 25

8. Maintenance, Servicing and Spare Parts

8.1. Maintenance..................................................................................................................................................... 26

8.2. Troubleshooting................................................................................................................................................ 27

8.3. Accessories...................................................................................................................................................... 27

8.4. Spare Parts ...................................................................................................................................................... 28

9. Warranty and Compliance

9.1. Warranty........................................................................................................................................................... 29

9.2. Declaration of Conformity................................................................................................................................. 29

9.3. Long-term Storage............................................................................................................................................ 29

9.4. WEEE Compliance........................................................................................................................................... 29

10. Contact

EASZ-2 Manual v1.12 - 12.2.2018 Page 3 / 30

IMPORTANT

In this manual a Warning identifies conditions and actions that pose a hazard to the Unit or the User and if

not followed may result in serious damage or injury.

WARNING: Prior to installing, connecting and commissioning the unit, you must thoroughly read all

the instructions in this manual and pay special attention to all instructions regarding Hazardous Areas.

WARNING: Before setting up your installation, check the model suits your application. The wiring of

the unit must comply with national and local regulations and be performed by qualified persons.

WARNING: Do not connect or disconnect any cables in hazardous areas and do not use non-approved

equipment in hazardous areas such as laptops, notebooks and mobile phones.

WARNING: To maintain the Unit’s certification only approved spare parts can be used.

1. Introduction to EASZ-2

The EESIFLO EASZ-2 Water-In-Oil Monitor is a full-bore inline and online highly accurate product

designed to continuously monitor the water content in a flowing hydrocarbon media (oil). It is inline

because it can be fitted easily into an existing pipeline and online because it can continuously monitor

and transmit the values to a remote location.

The unit is designed so that the fluid mixture flows through a fixed electrode assembly. This enables the

dielectric constant of the mixture to be measured as a variable capacitance which in turn produces an

analog or digital output.

Bore Sizes

Threaded ½” to 3”

Flanged 1” to 48”

Two glands for looped

2 wire power

CE Compliant

IP66

ATEX available

Sensor Pipe all

316 Stainless Steel

Construction

Highly accurate with

response time 1s

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2. Technical Specification

2.1. Specification

EASZ-2

Sd and Ex versions

■ Environment

Ingress Protection

IP66

Ambient Temperature

-20°C to +60°C (-4 to 140°F) - RH up to 95%

Media Temperature

0°C to +90°C (32 to 194°F)

Storage Temperature

-20°C to +60°C (-4 to 140°F) –See Warranty for details

■ Measurement

Range of Water in Oil

0 –10%

Accuracy

(see calibration section)

± 0.05% - for range 0 –1% with Laboratory Calibration

± 0.1% - for range 0 –5% with On-site 2 Point Calibration

± 0.2% - for range 0 –10% with On-site High Point Calibration

Response Time

1 s

Rate of Temperature Change

Maximum 1°C / minute

■ Power Supply

Rated Voltage Range

11 –28 Vdc (Note: the backlight works correctly from 18 Vdc)

Nominal Voltage

24 Vdc

24 Vdc SELV for EASZ-2Ex

24 Vdc IS for EASZ-2Ex

Power Consumption

1 W

Cable Glands

NPT ¾ (for cable Ø 13 - 18 mm)

Cable Type

Ø 13 - 18 mm - 2-core to 5-core

0.25 - 2.5 mm2(23 - 13 AWG) for solid conductors

0.25 - 1.5 mm2–for stranded cables terminated with ferrule crimps

■ Physical Parameters

Body

191 x 132 x 125 mm - Die cast aluminium powder coated

Sensor Pipe

316 Stainless Steel with PEEK® seals

Sensor Pipe Connection

Most commercially available pipe threads for ½” to 3” pipes

Most commercially available flanged connections for 1” to 48” pipes

■ Interface

Digital Communication

RS485 - 115200 baud - MODBUS

Analogue Output

4 - 20 mA passive or active current loop mode (3.5 - 20.5 mA max) (8 - 28 Vdc)

Open Collector Output

State “0” or “1” (off or on) - Maximum 50 V / 45 mA

EASZ-2

Ex version ONLY

Protection

1/2G Ex db ia IIB T4 Ga/Gb -The unit is connected to non-intrinsically safe circuit

1/2G Ex db ia [ib Gb] IIB T4 Ga/Gb -The unit is connected to an intrinsically safe circuit

Certificates

FTZÚ 17 ATEX 0154X

IECEx FTZU 18.001X

Power Supply

24 Vdc SELV - located in save area

Intrinsic Safety

All the outputs are IS if the unit is powered by an IS power supply.

All the outputs are not IS if the unit is powered by a normal supply.

EASZ-2 Manual v1.12 - 12.2.2018 Page 5 / 30

2.2. Intrinsically Safe Parameters

■ IS Parameters

Power Supply

Open Collector

RS485

Current Loop

Sensor Pipe

28 V

6 V

28 V

6 V

28 V

250 mA

50 mA

0 F

9.42 µF

0 F

0 H

5.88 V

28 V

5.88 V

0.6 A

300 mA

1.54 A

580 nF

320 nF

10 μF

350 µH

50 µH

2 μH

ϵr

< 80 (water)

2.3. Data Plates

The information on the data plates must always be clearly visible at all times. Data plates must be

protected from any damage. In the event of its damage contact the manufacture to agree repairs.

EASZ-2Sd EASZ-2Ex

Standard version ATEX and IECEx approved version

2.4. Dimensions

2.4.1. Unit Dimensions

UNIT

Type: Sd

Serial No.

Type: Ex

Serial No.

Approval

EASZ-2 Manual v1.12 - 12.2.2018 Page 6 / 30

2.4.2. Installation Dimensions

The body of the EASZ-2 is standard on all units. The Sensor Pipe will vary according to customer

requirements depending on pipeline size, type of connection, built-in mixer and sampling point. Specific

drawings are provided for each order, please check your specification with the unit delivered.

Dimensions for pipes 1”

Installation Dimensions:

Width .................... 190 mm

Depth ................... 125 mm

Height ................... 293 mm

Note: height from top of pipe

Cable Glands:

Gland ................... NPT ¾

Cable .................... Ø 13 - 18 mm

Dimensions for pipes 2”

Installation Dimensions:

Width .................... 190 mm

Depth ................... 125 mm

Height ................... 299 mm

Note: height from top of pipe

Cable Glands:

Gland ................... NPT ¾

Cable .................... Ø 13 - 18 mm

Dimensions for pipes 3” … 48”

Installation Dimensions:

Width .................... 190 mm

Depth ................... 125 mm

Height ................... 292 mm

Note: height from top of pipe

Cable Glands:

Gland ................... NPT ¾

Cable .................... Ø 13 - 18 mm

EASZ-2 Manual v1.12 - 12.2.2018 Page 7 / 30

3. How the EA SZ-2 Works

3.1. Unit Description

The EASZ-2 comprises 2 main parts: the Body and the Sensor Pipe.

The Body has two main parts, the base and the cover which screws onto the base. Both parts are die-

cast aluminium and powder-coated and the cover also has a safety glass viewing window. All the

electronics are housed in the body and connections to the unit are made through threaded holes on either

side of the body fitted with glands.

The display board can be seen behind the round viewing window on the front of the cover. The display

board has a high intensity backlight that changes colour according to status and a LCD display that is

used to set up the unit and show current values.

The sensor is housed in a stainless steel pipe and is connected to the body using a threaded bolt. Sealing

parts on the transmitter are made from Viton and the sealing parts on the wetted parts are made from

Peek. The unit is designed for petroleum products that do not degrade these materials. Joints are factory

fitted and tested and must not been loosened.

3.2. EASZ-2 Variants

The EASZ-2 is available in two variants:

3.2.1. EASZ-2Sd-L for Standard Non-Hazardous Areas (Non-Ex)

This unit is a standard product and MUST NOT be used in a hazardous area!

3.2.2. EASZ-2Ex-L for Hazardous Areas (Ex)

This variant can be installed in defined hazardous areas with potentially explosive atmospheres in

compliance with the 94/9/EC ATEX directive. The surface temperature must not exceed that indicated on

the Data Plates.

The Body is a flameproof enclosure (Ex type “d”) to which the sensor pipe is screwed (Ex type “ia”). The

flameproof Body comprises of a base and cover. The cover screws onto the base and this joint is the

threaded flameproof joint.

Backlight

Display

Window

Body Base

Body Cover

Grounding

Point

Sensor Pipe

Varies depending on

customer specification

Cable Glands

EASZ-2 Manual v1.12 - 12.2.2018 Page 8 / 30

3.3. Functionality

The EASZ-2 Water-In-Oil Monitor (Water-Cut / BS&W) is designed to continuously measure the water

content in hydrocarbon fluids:

■ Accurately

■ Reliably

■ Provide a linear analog or digital output

The fluid being measured flows through a fixed electrode assembly in the sensor pipe which measures

the dielectric constant as a variable capacitance across the electrode. This is then converted to an analog

or digital output proportional to the measured water content.

The graph below illustrates a simplified relationship between water content in the fluid and capacitance.

The dielectric constant between oil and water varies significantly. Generally a typical value for water is

around 80 and a typical value for oil is around 2. Since there is a large difference it is possible to measure

the water content with high degree of accuracy.

Relationship between water content and capacitance

3.4. Mixing

The EASZ-2 can also be supplied with an inline Pre-mixer. Pre-mixers become more important the larger

the size of the supply pipe due to gravity and “bottom water” effects which can then produce inaccurate

results. The Pre-mixer eliminates these problems by producing a homogeneous mixture just prior to

sampling for more accurate results.

Bottom Water Effects Homogeneous Accurate Results

PRE-MIXER

Inline Fluid Pre-Mixer

EASZ-2 Manual v1.12 - 12.2.2018 Page 9 / 30

4. Installation

WARNING: The design of and the actual installation, can only be performed by persons suitably

qualified and trained while adhering to national and local standards and regulations.

4.1. Position

The unit can be installed in either a horizontal or vertical position but to ensure accurate readings:

The sensor pipe must always be full of fluid (the

pipeline diameter must not be smaller than the diameter

of the sensor pipe and positive pressure must be applied,

i.e. pump before unit).

When installing the unit in the vertical position the fluid

must always flow upwards (↑).

When deciding where to install the unit also take note:

Never install the unit in direct sunlight or above a heat

source such as radiators, this can result in the working

temperature range being exceeded.

The rate of temperature change of the fluid must not be

more than 1 ºC/minute.

Do not install the unit in a location that is at risk from

flooding.

Install the unit in a location that is easy to access for

calibration and servicing.

When using EASZ-2Ex, it is important to define the extent of hazardous areas in accordance with

national and local standards and define how far these areas extend away from the installed units.

The ambient temperature must never exceed the range -20 °C to +60 °C.

The surface temperature of the device (indicated on the device) must never be exceeded: this

temperature must take into account both ambient and fluid temperatures.

4.2. Sampling Point

When designing your installation a sampling point needs to be included just before the EASZ-2 unit for

calibration purposes.

The sampling point can either be a standard “Tee” piece

(threaded or flanged) added to the pipe work between the mixer

(if installed) and the unit,

the sampling point can be ordered from EESIFLO as a part of

the Sensor Pipe and Mixer (if required).

EASZ-2 Manual v1.12 - 12.2.2018 Page 10 / 30

4.3. Mounting

4.3.1. Prior to mounting the EASZ-2 Unit check:

1) That all the project documentation (mounting points, cable specification, cable runs, junction boxes,

strain relief, configuration settings) is available and that the installation conforms to the

documentation.

2) That all the units are of the correct variant with the correct sensor pipe, sampling quill and insert mixer

according to the project documentation.

3) The cable glands supplied with the EASZ-2 are NPT ¾” HSK-Ex-D (Cable diameter 13-18 mm).

Alternative cable glands can be used providing they meet the approved level of safety. If using

alternative glands ensure they comply with the hazardous environment certificate.

4) If using NPT ¾”HSK-M-Ex-D glands both the EASZ-2 and cabling must be in a stationary installation.

5) That all unused cable glands are removed and replaced with special Ex plugs.

4.3.2. Actual Installation

When using EASZ-2Ex, the body is a flameproof enclosure and must NOT be modified in any way

(by drilling holes, milling surfaces or welding).

When mounting the unit care must be taken to avoid any physical damage and mechanical shocks to the

unit. Care must also be taken to avoid any damage to the viewing window.

Do NOT turn the Body of the unit against the Sensor Pipe, this connection is factory tested and any

damage will invalidate the warranty.

When installing the unit into an existing pipeline with petroleum products use protective rubber gloves and

protect your face using a safety visor.

If you have received a version with an integral Pre-mixer it is important to follow the arrow markings on

the case to ensure that the unit and mixer are in the same direction as the pipeline. When used in

conjunction with a static mixer ensure a minimum flow rate. If the unit is installed in a bypass engineered

by others, it is important to ensure that whatever is flowing through the bypass is adequately mixed and

that the design ensures a positive and minimum flow rate through the bypass. An incorrectly designed

bypass could restricted flow, if you require engineering assistance on bypass design, consult EESIFLO.

4.4. Electrical Connection and Configuration

WARNING: do NOT open the unit if energized!

The electrical connection must comply with local standards and regulations and persons carrying out the

work must be appropriately trained and qualified.

When using EASZ-2Ex, the installation of the unit must comply with EN 60079-14, in particular § 12.

When using EASZ-2Ex, the supply and input / output circuits can only be connected to intrinsically

safe circuits with equipment Ex marking “Ex db ia [ib Gb] IIB T4 Ga/Gb”or only to circuits which are in

accordance with standard IEC 60664-1 overvoltage category I/II for equipment with Ex marking “Ex

db ia IIB T4 Ga/Gb”. A combination of equipment is NOT permissible.

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