Eletta M Series Manuel utilisateur

2022-04-22 61B2E23

M-series Flow Meter

Manual

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1Contents

1CONTENTS.................................................................................................................................................2

2ABOUT THIS MANUAL...........................................................................................................................4

3PROPRIETARY RIGHTS .........................................................................................................................4

4SAFETY INSTRUCTIONS........................................................................................................................4

5DISTRIBUTORS........................................................................................................................................5

6CUSTOMER SERVICE ..............................................................................................................................5

7ABOUT TROUBLESHOOTING ..............................................................................................................5

8GENERAL INFORMATION .....................................................................................................................5

8.1 GENERAL DESCRIPTION................................................................................................................................... 5

8.2 THE DIFFERENTIAL PRESSURE PRINCIPLE .................................................................................................. 6

8.3 ACCURACY.......................................................................................................................................................... 6

8.4 OVERVIEW.......................................................................................................................................................... 6

8.4.1 Control unit ........................................................................................................................................................ 7

8.4.2 Pipe section......................................................................................................................................................... 7

8.5 PIPE DIMENSIONS............................................................................................................................................. 8

8.6 PED CERTIFICATION........................................................................................................................................ 8

8.7 EMC.................................................................................................................................................................... 9

9INSTALLATION.........................................................................................................................................9

9.1 UNPACKING........................................................................................................................................................ 9

9.2 PREPARATIONS.................................................................................................................................................. 9

9.3 INSTALLING THE FLOW METER....................................................................................................................10

9.4 ELECTRICAL INSTALLATION..........................................................................................................................13

9.5 MODBUS RTU RS485 COMMUNICATION ...................................................................................................13

10 M-DISPLAY (OPTION)....................................................................................................................14

10.1 CHANGING THE DISPLAY SETTINGS..............................................................................................................14

10.2 RST TOTAL .......................................................................................................................................................15

10.3 ROTATE 180....................................................................................................................................................15

10.4 UNIT SELECT....................................................................................................................................................15

10.5 SET QMAX ........................................................................................................................................................16

10.6 RETURN ............................................................................................................................................................16

11 OPTIONAL ACCESSORIES.............................................................................................................. 17

11.1 SEPARATE MOUNTING ...................................................................................................................................17

11.2 SEPARATE MOUNTING –INSTALLATION ....................................................................................................18

11.3 COMBINATION INSTRUMENT,PARALLEL CONNECTOR M ........................................................................19

11.4 COVER IN STAINLESS STEEL..........................................................................................................................20

11.5 SHUT-OFF VALVE CONNECTING BLOCK........................................................................................................20

11.6 COMMUNICATION CABLE FOR FLOW CENTER............................................................................................21

11.7 TOOL KIT FOR ORIFICE EXCHANGE G-BR PIPES.........................................................................................22

12 DIFFERENTIAL PRESSURE MEASUREMENTS......................................................................... 23

12.1 THE DIFFERENTIAL PRESSURE PRINCIPLE ................................................................................................23

12.2 PRESSURE DROP .............................................................................................................................................23

13 THE OUTPUT SIGNAL..................................................................................................................... 25

13.1 CUSTOMIZED RANGE.......................................................................................................................................26

14 MEASUREMENT MODES................................................................................................................26

14.1 DIFFERENTIAL PRESSURE MODE ..................................................................................................................26

14.2 FLOW MODE.....................................................................................................................................................26

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14.3 GAS FLOW MODE .............................................................................................................................................26

15 INSTALLATION MODIFICATIONS............................................................................................... 28

15.1 CHANGE OF FLOW DIRECTION......................................................................................................................28

15.2 CHANGE OF FLOW RANGE .............................................................................................................................28

16 MAINTENANCE................................................................................................................................. 28

16.1 HOUSING...........................................................................................................................................................29

16.2 ELECTRICAL WIRING AND CONNECTIONS....................................................................................................29

16.3 BOLTS AND SCREWS .......................................................................................................................................29

16.4 PROCESS CONNECTION...................................................................................................................................29

16.5 PIPE SECTION ..................................................................................................................................................29

17 TROUBLE SHOOTING .....................................................................................................................29

17.1 INACCURATE FLOW PREDICTION ..................................................................................................................29

17.2 THE METER SHOWS THE WRONG VALUE OR NOTHING AT ALL................................................................30

17.3 LIQUID (OR GAS)IS COMING OUT OF THE CONTROL UNIT .......................................................................30

18 SPARE PARTS.................................................................................................................................... 30

19 TECHNICAL SPECIFICATIONS...................................................................................................... 31

19.1 DIMENSIONS UNIT...........................................................................................................................................31

19.2 DIMENSIONS THREADED PIPE.......................................................................................................................31

19.3 FLANGE FITTED PIPE SECTIONS,CAST IRON /BRONZE METAL WITH SHUT OFF BLOCK ....................32

19.4 FLANGE FITTED PIPE SECTIONS,STAINLESS STEEL ...................................................................................32

19.5 PROPERTY -SPECIFICATION .........................................................................................................................33

20 MEASUREMENT FLOW RANGES, WATER................................................................................36

21 TYPE PLATES.................................................................................................................................... 37

22 BOM...................................................................................................................................................... 38

23 RECYCLING ........................................................................................................................................41

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2About this manual

• This manual relates to the M-series Flow Meter.

• Note that the latest version of this manual is always available as a PDF file on our web site

www.eletta.com.

• On our site you also find other interesting information such as leaflets,

newsletters and application reports.

3Proprietary Rights

This manual contains confidential technical data, including trade secrets and proprietary

information, that are the property of Eletta Flow AB, Sweden.

Any changes or alterations to downloaded or printed Eletta original documentation such as

manuals, drawings, leaflets, newsletters etc, are not permitted without a written permission

from Eletta Flow AB, Sweden.

These data are only disclosed to you under permission of limited use within your company.

Use for manufacturing or processing is not permitted.

Any other use of data and information is strictly prohibited without prior written permission

from Eletta Flow AB, Sweden.

4Safety instructions

In this manual, this warning symbol is used to emphasize where you have to

be particularly careful to avoid injury or damaging the product.

The M-series Flow Meter must not be installed in explosive environments. The

product is not Ex-hazardous approved.

To prevent injury when installing the Flow Meter, make sure that the system is not

pressurized from gas or liquid flow.

There are no serviceable parts inside the instrument. Eletta takes no responsibility for

injury or damage caused by unauthorized disassembly.

Never open the instrument by unscrewing the four hexagon bolts at the top while the

instrument is pressurized.

The electrical installation must only be made by authorized personnel.

Disconnect all power connections before installation or service.

Never exceed the maximum static pressure, which is specified on the product label,

and in this manual.

Make sure that the correct electrical power is used.

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5Distributors

Eletta has appointed a number of distributors all over the world. You will find more

information about your closest distributor at our web site www.eletta.com, or by contacting

our Customer Service Center.

6Customer Service

Our Customer Service Center is available during normal office hours* 8.00 - 16.30 C.E.T., (8

am - 4.30 pm Central European Time).

Phone +46 8 603 07 70 Switchboard

+46 8 603 07 80 Orders and Inquires

Postal Mail Eletta Flow AB

P.O. Box 5084

SE-141 05 Kungens Kurva

SWEDEN

E-mail [email protected]

Web www.eletta.com

7About Troubleshooting

Please refer to the trouble-shooting section 17 where we answer the most frequent

questions. We have tried to make this manual as clear and comprehensive as possible, but

we understand that you might run into problems which might not be described in this manual.

In this case your local Distributor or Our Customer Service Center will be more than happy to

answer any of your commercial or technical questions.

8General Information

8.1 General Description

The M-series Eletta Flow Meters are used to measure and control flows of liquids and gases

in threaded pipes with sizes DN15-DN40 and flange fitted pipe sizes DN15 to DN400.

Note that the M-series Flow Meters arrives factory calibrated and programmed at delivery. At

the time of order, data for your specific application is used for configuration of the unit. This

enables quick and easy installation by the user. Only mechanical assembly and electrical

installation are needed. No further adjustments have to be done by the user.

However, it is possible to adjust most parameters in the field after installation using the Eletta

Flow Center or ModBus RTU. You find more information about this in the manual of Eletta

Flow Center.

The viewing settings on optional display version can be changed directly on the meter but will

not effect the meters other settings. For more information, see chapter 10.1.

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8.2 The Differential Pressure Principle

The M-series Eletta Flow Meters are based on the proven and dependable differential

pressure principle and use interchangeable orifice plates for different pipe dimensions and

measuring ranges. See section 12 for more information about the measurement principle.

The M-series Flow Meter is factory calibrated for the differential pressure range of the unit.

The range differs between our three different versions:

•M310, with standard pressure operating range of 5 –500 mbar

•M325, with standard pressure operating range of 12,5 –1250 mbar

•M350, with standard pressure operating range of 25 –2500 mbar

The differential pressure range can be customized using Eletta Flow Center or specified at

the time of ordering.

8.3 Accuracy

The M-series Flow Meter measures media pressure using two independent pressure

transducers. The measurement values are then converted to a flow value by the

microprocessor. The flow accuracy can be separated into:

The M-series pressure sensors have an accuracy of +/- 0,05% F.S.(Full Scale) of the

measured differential pressure.

Our orifices are calculated based on ISO 5167-1:1999/AMD.1:1998. The measurement error

related to the orifice calculation varies because it is is dependent on the type of media, flow

conditions and pipe dimension. At ideal conditions an accuracy within 0,5-1% FS of the

calculated flow can be expected.

Tolerances pipe section and orifice bore diameter contribute to around 0,5-1% FS

Display option:

The 4-20mA signal and ModBus RTU accurasies are unchanges.

The displayed value will not differ from the output during normal use but can differ up to 4.5% during

high power EMC interfearence.

8.4 Overview

M-series is available with four different types of pipes; Threaded G-BR/G-SS and GL, as well

as FA and FSS for flanged fitting. The flow monitor mainly consists of two parts, the Control

Unit and the Pipe Section.

M-BR

M-GL

M-FA

M-FSS

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8.4.1 Control unit

The Control Unit contains the two pressure sensors, the circuit board and the electrical

connector with integrated filter. The circuit board outputs 4-20 mA and ModBus RTU through

the output connector. The settings are adjustable using Flow Center or ModBus. Settings for

the optional display can be changed directly at the meter but will not change the

measurements.

In order to get the unit to work properly with good accuracy, it is very important that the unit is

installed correctly according to the installation instruction, see chapter 9.

8.4.2 Pipe section

The Pipe Section is assembled in-line with the process pipe and the Control Unit is fitted on

top of the Pipe Section. It is also possible, for example when measuring a too hot media, to

install the Control Unit separated (using either steel pipes or tubes) from the Pipe Section.

See section 11.1 Add-Ons, Options.

The Pipe Section contains of an exchangeable Orifice Plate and Plate Holder/Spacers. There

are four different types of pipes; GBR, FA, GL and FSS. (FSS pipe sections contain no

changeable orifice plate - pipe and orifice makes one integrated unit.)

G-BR

-GL

-FA

-FSS

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8.5 Pipe Dimensions

The Pipe Sections are available in various dimensions and materials to fit different

requirements of various applications. Following tables provide a summary of our different

materials and fittings.

Threaded (G)

Pipe material

Type

Available dimensions

De-zincified Brass,

CW602N, EN12420

M-G15BR

DN15 ( ½” BSPP* )

M-G20BR

DN20 ( ¾” BSPP* )

M-G25BR

DN25 ( 1” BSPP* )

M-GL40

DN40 ( 1 ½” BSPP )

DN40 (1 ½” NPT)

Stainless steel

1.4409/EN10213

M-G15SS

DN15 ( ½” BSPP* )

M-G20SS

DN20 ( ¾” BSPP* )

M-G25SS

DN25 ( 1” BSPP* )

* Use NPT adapters for NPT connection (adapters are not included) For GL version NPT

threads are available.

Flange connections

Pipe material

Type

Available dimensions

Powder coated (2022009697096)

steel, 1.0060/E335/SS1650.

FA15 –FA400

DIN DN15 –DN400, PN16

DN15 –DN100, ANSI 150lbs

DN125 - DN200, Suitable ANSI

150 lbs

DN250 –DN300, ANSI 150 lbs

Stainless steel

EN1.4435/EN1.4401/EN1.4404

F15SS-

F400SS

DIN DN15 –DN400, PN16

DN15 –DN400, ANSI 150lbs

Stainless steel SMO254

EN1.4547

F15SS-

F400SS

DIN DN15 –DN400, PN16

DN15 –DN400, ANSI 150 lbs

Bronze

CC491K/493K-GC/GZ/1982

Option

FA15-400

DIN DN15 –DN400, PN16

DN50 –DN100, ANSI 150lbs

DN125 - DN200, Suitable ANSI

150 lbs

DN250 –DN300, ANSI 150 lbs

8.6 PED Certification

M-series complies with applicable parts in Pressure Equipment Directive 2014/68/EU.

Conformity assessment has been performed according to module A. Internal production

control combined with module A2. Internal manufacturing checks with monitoring of the final

assessment, for category 2. Performed by Kiwa Inspecta AB. PED Declaration of conformity

will be sent to you upon request and are also available on www.eletta.com

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8.7 EMC

M-series Flow monitors comply with the EMC directive 2004/108/EC through the following

harmonized standards:

•EN 61 000 –6 –3:2007 Generic Emission –Residential, commercial and light

industry.

•EN 61 000 –6 - 2:2005 Generic Immunity - Industry

M-series Flow monitors with display comply with the EMC directive EN/IEC 61000-6-2:2019

and EN/IEC 61000-6-3:2007+A1 through the following harmonized standards:

•EN/(IEC) 61000-4-2:2009. Immunity to electrostatic discharges.

•EN/(IEC) 61000-4-3:2020. Immunity to radio frequency electromagnetic fields.

•EN/(IEC) 61000-4-4:2012. Immunity to fast transients.

•EN/(IEC) 61000-4-5:2014+A1. Immunity to surge transients.

•EN/(IEC) 61000-4-6:2014. Immunity to conducted radio frequency disturbances.

•CISPR 16-2-3:2016. Measurement of radio frequency electromagnetic field.

9Installation

9.1 Unpacking

Before installation, we kindly ask you to perform the following steps:

1) Check that there are no external damages to the outer packaging. If there are damages,

check if the Flow Meter has been damaged. If there is transportation damage, contact your

forwarder.

2) Check that the delivered parts corresponds to the Packing list. Note that the connection

cable is also included in the package.

The packaging material is made of recycled environmental friendly material, and we kindly

ask you to deal with the material in a way that will have as little impact on the environment as

possible.

9.2 Preparations

Before installation, we kindly ask you to perform the following steps:

1) Eletta recommends that you choose a correct position for the installation of the flow meter

in your pipe system. The following table serves as a guideline.

2) Check that the flow direction in your pipe corresponds to the direction of the Flow Meter.

The flow direction is indicated by an engraved arrow on the Pressure Plate. Note that the

cable connector shall always be located on the upstream side of the pipe section. See

section 15.1 for further details on how to change the flow direction.

Process Media

Correct installation

Liquid

Low level position of the

system.

Gas

High level position of the

system.

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For a GL or FA pipe the engraved arrow on the M-unit should coincide with the red flow

pointer on the pipe, see below pics.

9.3 Installing the Flow Meter

- Disconnect all electrical power before installation!

- Make sure that the system is not pressurized!

1) Install the Flow Meter in any desired direction, vertical or horizontal.

2) If you install the Flow Meter horizontally, make sure that the Control Unit always is

oriented upwards, i.e. on top of the Pipe Section, and not up side down. The reason for this

is to prevent particles in the fluid to collect in the chambers of the pressure sensors. Please

use a filter in the pipeline if your system fluid contains particles.

3) Ensure that you install the Flow Meter according to the correct flow direction, which is

indicated by an engraved arrow. Note that the cable connector shall always be located on the

upstream side.

4) The installation location of the Flow Meter should be rigid and vibration free.

On the rear side of the GBR pipe section there are threaded M6 holes which can be used to

secure the flow meter on a wall or similar using an angle bracket.

Ce manuel convient aux modèles suivants

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