MA_H250_M40_en_4000640704_R04 Y5 1 Krohne H250 M40 Manual

User Manual:

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Variable area flowmeter

H250 M40

H250 M40H250 M40

H250 M40 Handbook

HandbookHandbook

Handbook

the prior written authorisation of KROHNE Messtechnik GmbH.

Subject to change without notice.

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KROHNE Messtechnik GmbH - Ludwig-Krohne-Str. 5 - 47058 Duisburg (Germany)

IMPRINT

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CONTENTS

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H250 M40

1 Safety instructions 5

1.1 Intended use ..................................................................................................................... 5

1.2 Certifications .................................................................................................................... 6

1.3 Pressure equipment directive.......................................................................................... 6

1.4 Safety instructions from the manufacturer ..................................................................... 8

1.4.1 Copyright and data protection ................................................................................................ 8

1.4.2 Disclaimer ............................................................................................................................... 8

1.4.3 Product liability and warranty ................................................................................................ 9

1.4.4 Information concerning the documentation........................................................................... 9

1.4.5 Warnings and symbols used................................................................................................. 10

1.5 Safety instructions for the operator............................................................................... 10

2 Device description 11

2.1 Scope of delivery............................................................................................................. 11

2.2 Device version................................................................................................................. 12

2.2.1 Indicator versions ................................................................................................................. 13

2.2.2 Float damping ....................................................................................................................... 15

2.2.3 Pointer damping.................................................................................................................... 15

2.3 Nameplate ...................................................................................................................... 16

2.4 Description code............................................................................................................. 17

2.5 Electronic revision.......................................................................................................... 18

3 Installation 19

3.1 Notes on installation ......................................................................................................19

3.2 Storage ........................................................................................................................... 19

3.3 Installation conditions ....................................................................................................20

3.3.1 Tightening torques................................................................................................................ 22

3.3.2 Magnetic filters ..................................................................................................................... 22

3.3.3 Heat insulation ...................................................................................................................... 23

4 Electrical connections 24

4.1 Security information.......................................................................................................24

4.2 Electrical connection indicator M40............................................................................... 25

4.2.1 Limit switches K1/K2 ............................................................................................................ 25

4.2.2 ESK4 / ESK4A current output ............................................................................................... 28

4.2.3 ESK4-T limit outputs............................................................................................................. 31

4.2.4 ESK4-T pulse output ............................................................................................................. 33

4.2.5 ESK4-T binary input .............................................................................................................. 34

4.2.6 ESK4-FF / ESK4-PA fieldbus communication...................................................................... 35

4.2.7 Harting HAN 7D connection.................................................................................................. 36

4.3 Grounding connections................................................................................................... 37

4.4 Ingress protection .......................................................................................................... 37

CONTENTS

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H250 M40

5 Start-up 38

5.1 Standard device .............................................................................................................. 38

5.2 Indicator ESK4-T ............................................................................................................ 38

6 Operation 39

6.1 ESK4 / ESK4A - Loop Check Mode................................................................................. 39

6.2 Operating elements ESK4-T........................................................................................... 40

6.3 Basic principles of operation ESK4-T ............................................................................ 41

6.3.1 Description of the operating keys......................................................................................... 41

6.3.2 Navigation within the menu structure.................................................................................. 41

6.3.3 Change the settings in the menu..........................................................................................42

6.4 Overview of the units ESK4-T......................................................................................... 43

6.5 Error messages ESK4-T................................................................................................. 44

6.6 ESK4-T menu.................................................................................................................. 46

6.6.1 Factory settings .................................................................................................................... 46

6.6.2 Menu structure ..................................................................................................................... 47

6.6.3 Menu description .................................................................................................................. 49

7 Service 56

7.1 Maintenance ................................................................................................................... 56

7.2 Replacement and retrofitting......................................................................................... 56

7.2.1 Replacing floats .................................................................................................................... 56

7.2.2 Retrofitting float damping..................................................................................................... 57

7.2.3 Retrofitting limit switch ........................................................................................................ 57

7.2.4 Replacement - Retrofitting ESK4 / ESK4A ........................................................................... 58

7.2.5 Replacement - Retrofitting add-on module ESK4-T / PA / FF............................................. 59

7.3 Spare parts availability...................................................................................................59

7.3.1 List of spare parts................................................................................................................. 59

7.4 Availability of services .................................................................................................... 63

7.5 Returning the device to the manufacturer..................................................................... 63

7.5.1 General information.............................................................................................................. 63

7.5.2 Form (for copying) to accompany a returned device............................................................ 64

7.6 Disposal .......................................................................................................................... 64

8 Technical data 65

8.1 Functional principle........................................................................................................ 65

8.2 Technical data................................................................................................................. 66

8.3 Dimensions and weights ................................................................................................ 73

8.4 Measuring ranges...........................................................................................................76

SAFETY INSTRUCTIONS

H250 M40

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1.1 Intended use

The variable area flowmeters are suitable for measuring clean gases, vapours and liquids.

Intended use:

•The product may not contain any ferromagnetic particles or solids. It may be necessary to

install magnetic filters or mechanical filters.

•The product must be sufficiently liquid and free of deposits.

•Avoid pressure surges and pulsing flows.

•Open valves slowly. Do not use solenoid valves.

Use suitable measures to eliminate compression vibrations during gas

measurements:

•Short pipeline lengths to next restriction

•Nominal pipe size not greater than nominal device size

•Use of floats with damping

•Increase in operating pressure (while taking into account the resulting change in density and

thus change in scale)

Observe installation conditions according to VDI/VDE 3513-3.

CAUTION!

Responsibility for the use of the measuring devices with regard to suitability, intended use and

corrosion resistance of the used materials against the measured fluid lies solely with the

operator.

INFORMATION!

This device is a Group 1, Class A device as specified within CISPR11:2009. It is intended for use in

industrial environment. There may be potential difficulties in ensuring electromagnetic

compatibility in other environments, due to conducted as well as radiated disturbances.

INFORMATION!

The manufacturer is not liable for any damage resulting from improper use or use for other than

the intended purpose.

DANGER!

For devices used in hazardous areas, additional safety notes apply; please refer to the Ex

documentation.

CAUTION!

Do not use any abrasive media containing solid particles or highly viscous media.

SAFETY INSTRUCTIONS

H250 M40

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1.2 Certifications

The device fulfils all applicable statutory requirements of the EU directives:

•Pressure equipment directive

•For devices with electrical installations: EMC directive

•Devices for use in hazardous areas: ATEX directive

as well as

•NAMUR recommendations NE 21, NE 43 and NE 107

The manufacturer certifies successful testing of the product by applying the CE mark.

A EU declaration of conformity regarding the directives in question and the associated

harmonised standards can be downloaded from our website.

1.3 Pressure equipment directive

A conformity assessment in accordance with pressure equipment directive has been carried out

for the devices described. Conformity is certified by applying the CE mark. The number of the

notified body is also stated.

The PED key describes the rating of the devices:

The PED key identification can be found on the nameplate of the device (for details refer to

Nameplate

on page 16).

CE marking

Example: PED/G1/III/H

G Gases and vapours

1Fluid group 1

III Category III

H Conformity assessment method according to Module H

INFORMATION!

The stated pressures (PS) and temperatures (TS) only apply as refers to the pressure resistance

of the sensor body. As regards the functionality of the entire device, further restrictions of the

maximum temperature may need to be observed (e.g. ATEX approval). Devices rated below

category I due to their size, do not receive the CE mark in the scope of the PED. These devices

are subject to applicable sound engineering practice (SEP).

SAFETY INSTRUCTIONS

H250 M40

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Residual risk

A risk analysis in accordance with the pressure equipment directive has been carried out for the

devices . The residual risk is described as follows:

•The devices are designed according to the valid and applicable rules and standards for static

operation and their pressure resistance is calculated for the declared maximum pressure

and temperature (no calculation for cyclical change).

•Responsibility for the use of the measuring devices with regard to corrosion resistance of the

used materials against the measured fluid lies solely with the operator.

•Avoid abrasion.

•Avoid pulsation and cavitation.

•Protect devices from vibration and high-frequency oscillation.

•Draining (backflow) may be delayed due to the float in the measuring tube.

•Implement appropriate measures to counteract external fire hazards

SAFETY INSTRUCTIONS

H250 M40

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1.4 Safety instructions from the manufacturer

1.4.1 Copyright and data protection

The contents of this document have been created with great care. Nevertheless, we provide no

guarantee that the contents are correct, complete or up-to-date.

The contents and works in this document are subject to copyright. Contributions from third

parties are identified as such. Reproduction, processing, dissemination and any type of use

beyond what is permitted under copyright requires written authorisation from the respective

author and/or the manufacturer.

The manufacturer tries always to observe the copyrights of others, and to draw on works created

in-house or works in the public domain.

The collection of personal data (such as names, street addresses or e-mail addresses) in the

manufacturer's documents is always on a voluntary basis whenever possible. Whenever

feasible, it is always possible to make use of the offerings and services without providing any

personal data.

We draw your attention to the fact that data transmission over the Internet (e.g. when

communicating by e-mail) may involve gaps in security. It is not possible to protect such data

completely against access by third parties.

We hereby expressly prohibit the use of the contact data published as part of our duty to publish

an imprint for the purpose of sending us any advertising or informational materials that we have

not expressly requested.

1.4.2 Disclaimer

The manufacturer will not be liable for any damage of any kind by using its product, including,

but not limited to direct, indirect or incidental and consequential damages.

This disclaimer does not apply in case the manufacturer has acted on purpose or with gross

negligence. In the event any applicable law does not allow such limitations on implied warranties

or the exclusion of limitation of certain damages, you may, if such law applies to you, not be

subject to some or all of the above disclaimer, exclusions or limitations.

Any product purchased from the manufacturer is warranted in accordance with the relevant

product documentation and our Terms and Conditions of Sale.

The manufacturer reserves the right to alter the content of its documents, including this

disclaimer in any way, at any time, for any reason, without prior notification, and will not be liable

in any way for possible consequences of such changes.

SAFETY INSTRUCTIONS

H250 M40

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1.4.3 Product liability and warranty

The operator shall bear responsibility for the suitability of the device for the specific purpose.

The manufacturer accepts no liability for the consequences of misuse by the operator. Improper

installation or operation of the devices (systems) will cause the warranty to be void. The

respective "Standard Terms and Conditions" which form the basis for the sales contract shall

also apply.

1.4.4 Information concerning the documentation

To prevent any injury to the user or damage to the device it is essential that you read the

information in this document and observe applicable national standards, safety requirements

and accident prevention regulations.

If this document is not in your native language and if you have any problems understanding the

text, we advise you to contact your local office for assistance. The manufacturer can not accept

responsibility for any damage or injury caused by misunderstanding of the information in this

document.

This document is provided to help you establish operating conditions, which will permit safe and

efficient use of this device. Special considerations and precautions are also described in the

document, which appear in the form of icons as shown below.

SAFETY INSTRUCTIONS

H250 M40

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1.4.5 Warnings and symbols used

Safety warnings are indicated by the following symbols.

• HANDLING

HANDLINGHANDLING

HANDLING

This symbol designates all instructions for actions to be carried out by the operator in the

specified sequence.

iRESULT

RESULTRESULT

RESULT

This symbol refers to all important consequences of the previous actions.

1.5 Safety instructions for the operator

DANGER!

This warning refers to the immediate danger when working with electricity.

DANGER!

This warning refers to the immediate danger of burns caused by heat or hot surfaces.

DANGER!

This warning refers to the immediate danger when using this device in a hazardous atmosphere.

DANGER!

These warnings must be observed without fail. Even partial disregard of this warning can lead to

serious health problems and even death. There is also the risk of seriously damaging the device

or parts of the operator's plant.

WARNING!

Disregarding this safety warning, even if only in part, poses the risk of serious health problems.

There is also the risk of damaging the device or parts of the operator's plant.

CAUTION!

Disregarding these instructions can result in damage to the device or to parts of the operator's

plant.

INFORMATION!

These instructions contain important information for the handling of the device.

LEGAL NOTICE!

This note contains information on statutory directives and standards.

WARNING!

In general, devices from the manufacturer may only be installed, commissioned, operated and

maintained by properly trained and authorized personnel.

This document is provided to help you establish operating conditions, which will permit safe and

efficient use of this device.

DEVICE DESCRIPTION

H250 M40

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2.1 Scope of delivery

INFORMATION!

Inspect the packaging carefully for damages or signs of rough handling. Report damage to the

carrier and to the local office of the manufacturer.

INFORMATION!

Do a check of the packing list to make sure that you have all the elements given in the order.

INFORMATION!

Look at the device nameplate to ensure that the device is delivered according to your order.

Check for the correct supply voltage printed on the nameplate.

Figure 2-1: Scope of delivery

1 Measuring device in ordered version

2 For the ESK4-T version - bar magnet

3 Documentation

4 Certificates, calibration report (supplied to order only)

5 Wrench

DEVICE DESCRIPTION

H250 M40

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2.2 Device version

•H250 with indicator M40

•H250 with M40 indicator with display cut-out for ESK4-T

1. H250/RR/M40

•Local indicator without auxiliary power

•Max. 2 limit switches, type NAMUR, NAMUR safety-oriented or transistor (3-wire)

•Electrical signal output 4...20 mA, HART

or Fieldbus communication

•Intrinsically safe (Ex i) or in explosion-proof enclosure (Ex d)

2. H250/RR/M40

•Additional LCD, measured value and/or flow counter

•2 configurable binary outputs, limit value or pulse output

•1 binary input, Start / Stop / Reset flow counter

•2-wire current output 4…20 mA, HART

communication

•Intrinsically safe (Ex i) or in explosion-proof enclosure (Ex d)

Optional versions:

•H250 with indicator M40 as high temperature version HT

•H250 with indicator M40 with increased corrosion protection (special paint finish)

•H250H for use in horizontal pipelines

•H250U for use in vertical fall pipes

•H250F with hygienic measuring tube design for Food & Pharma

•H250C with PTFE / TFM liner for aggressive media

Display options

•M40 - Aluminium, single-layer powder coating (polyester)

•M40S - Aluminium, two-layer powder coating (epoxy / polyester)

•M40R - Stainless steel without coating

Offshore wet coating for aluminium or stainless steel on request

DEVICE DESCRIPTION

H250 M40

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2.2.1 Indicator versions

The M40 indicator can be fitted with various modules.

Both versions can be combined with one another.

Basic version

1 Pointer module

2 Bolts for ESK4 / ESK4A attachment

3 Baseplate

4 Module profile

5 Pressure piece for ESK4 / ESK4A attachment

6 Housing cover locking device

7 Earth terminal external

Versions K1 / K2 and ESK4 / ESK4A

1 Indicator with K2 contact module

2 Indicator with ESK4 / ESK4A current output 4...20 mA

DEVICE DESCRIPTION

H250 M40

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For more details see the supplementary instructions "H250 M40 Foundation Fieldbus"

and "H250 M40 Profibus PA"

Version ESK4-T

1 ESK4 / ESK4A connection

2 Module cover

3 Display

4 Display module ESK4-IO

5 Operating keys ^ ↑

6 Connection binary outputs and reset input

7 Module connection cable

Version Fieldbus ESK4-FF / ESK4-PA

1 Basic module with electronic magnet sensors ESK4 / ESK4A

2 Connection bus module

3 DIP switch for bus settings

DEVICE DESCRIPTION

H250 M40

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2.2.2 Float damping

Float damping is characterised by high standstill times and self-centering. The damping sleeve

is made of high performance ceramic or PEEK, depending on the medium and the application.

Float damping can also be retrofitted for the user (refer to "Service").

Use of damping

•Generally when CIV and DIV floats are used for gas measurement.

•For TIV floats (H250/RR and H250/HC only) with an operating primary pressure:

2.2.3 Pointer damping

In principle, the indicating element with its magnetic system contains indicator damping. An

additional eddy current brake is advantageous in the event of fluctuating or pulsing flows. The

magnets on the eddy current brake surround the pointer vane without touching it, damping its

movement. The result is a much steadier pointer position, without distorting the measured

value. A turnbuckle ensures a proper fit. The eddy current brake can be retrofitted during

operation without recalibrating (refer to "Service").

Nominal size acc. to Operating primary pressure

EN 1092-1 ASME B16.5 [bar] [psig]

DN 50 ½"≤0.3 ≤4.4

DN25 1" ≤0.3 ≤4.4

DN50 2" ≤0.2 ≤2.9

DN80 3" ≤0.2 ≤2.9

DN 100 4" ≤0.2 ≤2.9

1 Eddy current brake

2 Pointer vane

3 Bracket

4 Pointer cylinder

DEVICE DESCRIPTION

H250 M40

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2.3 Nameplate

Additional markings on the indicator

•SN - serial number

•SO - sales order / item

•PA - production order

•Vx - product configurator code

•AC - article code

INFORMATION!

Check on the device nameplates, that the device is supplied according to your order.

Figure 2-2: Nameplate on the indicator

1 Device type

2 Manufacturer

3 Notified body ATEX & PED

4 Rating data: temperature & pressure rating

5 PED data

6 Ex data

7 Electrical connection data

8 Internet site

www.krohne.com

Tag-No.:

ESK...

Kmin1

Kmin2

Ui = xxV Ii = xxmA Pi = xW

Ci = xxnF Li = xuH

Ui = xxV Ii = xxmA Pi = xW

Ci = xxnF Li = xuH

Ui = xxV Ii = xxmA Pi = xW

Ci = xxnF Li = xuH

PTB 11 ATEX 2012 X

II2G Ex ia IIC T6

amb

: -20°C... +60°C (T6: +40°C)

H250/.././M40/..-Ex

P/A: 011123456.001

PED/G1/II/H

PTmax: xxx bar

MD:201x

PS: xxx bar

TS: xx °C

0035

0102

IECEx PTB 11.0069 X

DEVICE DESCRIPTION

H250 M40

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2.4 Description code

The description code* consists of the following elements:

* positions which are not needed are omitted (no blank positions)

1 Device type

H250 - standard version

H250H - horizontal flow direction

H250U - flow direction from top to bottom

2 Materials / versions

RR - stainless steel

C - PTFE or PTFE/ceramics

HC - Hastelloy

Ti - Titanium

Mo - Monel

F - aseptic version (food)

3 Heating jacket version

B - with heating jacket

4 Type series of indicators

M40 - Indicator M40

M40S - indicator with increased corrosion protection

M40R - indicator in stainless steel housing

5 High temperature version

HT - version with HT extension

6 Electrical signal output

ESK - electrical signal output 4...20 mA (ESK4 / ESK4A)

- optionally available with counter, I/O module and display (ESK4-T) or

- Foundation Fieldbus (ESK4-FF) or

- Profibus PA (ESK4-PA)

7 Limit switches

K1 - one limit switch

K2 - two limit switches

8 Explosion protection

Ex -explosion proof equipment

9 SIL version

SE - SIL compliant electronic signal output

SK - SIL compliant limit switch

DEVICE DESCRIPTION

H250 M40

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2.5 Electronic revision

The electronic revision (sticker on the base module ESK4 / ESK4A) indicates the respective

hardware/software status of the electronics. All add-on modules (ESK4-T, ESK4-FF and ESK4-

PA) have an additional sticker indicating their respective firmware version.

Electronic revision Explanations

ER 1.1.x Basic version (cannot be combined with other indicator versions):

ESK4 / current output 4…20 mA with HART

communication

(ESK4 HART DD 01.01. AMS10x AMS11x

ESK4 HART DD 01.01. PDM6.0

ESK4 HART DTM 1.0.3 FDT1.2)

ER 2.0.x Functional add-on to ER 1.1.x:

can be combined with indicator version ESK4 FF / Foundation Fieldbus;

(Firmware version FF module from 1.0.2)

ER 2.1.x Functional add-on to ER 2.0.x

can be combined with indicator version ESK4-PA / Profibus PA

(Firmware version PA module from 1.0.0)

can be combined with indicator version ESK4-T / LCD, binary inputs/outputs

(Firmware version T module from 1.1.0)

ER 2.2.x Functional add-on to ER 2.1.x:

Support of failure signal (low) according to NE 43

for the ESK4 current output module

ER 3.0.x Functional add-on:

Update for HART

communication from 5.9 to 7.4 including new DD/DTM

can be combined with ESK4-FF (Firmware version FF module from 1.0.2)

Firmware Version ESK4-PA (... PA module from 1.0.0)

Firmware Version ESK4-T (... T module from 1.2.0)

INSTALLATION

H250 M40

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3.1 Notes on installation

3.2 Storage

•Store the device in a dry, dust-free location.

•Avoid lasting direct exposure to the sun.

•Store the measuring device in the original packaging.

•The permissible storage temperatures for standard devices are: -40...+80°C / -40...+176°F

INFORMATION!

Inspect the packaging carefully for damages or signs of rough handling. Report damage to the

carrier and to the local office of the manufacturer.

INFORMATION!

Do a check of the packing list to make sure that you have all the elements given in the order.

INFORMATION!

Look at the device nameplate to ensure that the device is delivered according to your order.

Check for the correct supply voltage printed on the nameplate.

INSTALLATION

H250 M40

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3.3 Installation conditions

CAUTION!

When installing the device in the piping, the following points must be observed:

•

The variable area flowmeter must be installed vertically (measuring principle). Flow direction

from bottom to top. For installation recommendations please refer also to directive

VDI/VDE 3513, sheet 3.

H250Hs are installed horizontally and H250U devices are installed vertically with the flow

direction from top to bottom.

•

A straight unimpeded inlet run of ≥5 DN upstream of the device and a straight outlet run of

≥3 DN downstream of the device are recommended.

•

Screws, bolts and gaskets are to be provided by the customer and must be selected in

accordance with the pressure rating of the connection or the operating pressure.

•

The inside diameter of the flange deviates from the standard dimensions. Flange seal

standard DIN 2690 can be applied without any limitation.

•

Align the gaskets. Tighten the nuts with the tightening torques of the appropriate pressure

rating.

For devices with PTFE liner or ceramic liner and PTFE raised faces, refer to chapter

"Tightening torques".

•

Control devices are to be positioned downstream of the measuring device.

•

Shutoff devices are preferably to be positioned upstream of the measuring device.

•

Before connecting, blow or flush out the pipes leading to the device.

•

Pipes for gas flow need to be dried before the device is installed.

•

Use connectors suitable for the particular device version.

•

Align the pipes centrically with the connection bores on the measuring device so they are free

of stresses.

•

If necessary, the piping has to be supported to reduce the vibrations transmitted to the

measuring device.

•

Do not lay signal cables directly next to cables for the power supply.

INSTALLATION

H250 M40

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Minimum distance between devices

When several devices are installed next to one another, a minimum distance of a > 300 mm /

11.8" between the devices is necessary.

Take special note of the installation position for the H250H with horizontal flow

direction:

In order to comply with thermal parameters and measuring accuracy, H250H flowmeters for

horizontal installation are to be installed in the pipeline so that the display is located on the side

of the measuring tube. The maximum product and ambient temperatures indicated as well as

the measuring accuracy are based on lateral installation of the display.

INSTALLATION

H250 M40

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3.3.1 Tightening torques

For measuring devices with PTFE liner or ceramic liner and PTFE raised face, tighten the flange

threads with the following torques:

3.3.2 Magnetic filters

The use of magnetic filters is recommended when the medium contains particles which can be

influenced magnetically. The magnetic filter is to be installed in the flow direction upstream of

the flowmeter. Bar magnets are positioned helically in the filter to provide optimal efficiency at

low pressure loss. All of the magnets are coated individually with PTFE to protect against

corrosion. Material: 1.4404/316L

Nominal size acc. to Stud bolts Max. torque

EN 1092-1 ASME B16.5 EN ASME EN 1092-1 ASME 150 lb

DN PN Inch lb 150 lb 300 lb Nm ft*lbf Nm ft*lbf

15 40 ½"150/300 4x M12 4x ½"4x ½"9.8 7.1 5.2 3.8

25 40 1" 150/300 4x M12 4x ½"4x 5/8" 21 15 10 7.2

50 40 2" 150/300 4x M16 4x 5/8" 8x 5/8" 57 41 41 30

80 16 3" 150/300 8x M16 4x 5/8" 8x ¾"47 34 70 51

100 16 4" 150/300 8x M16 8x 5/8" 8x ¾"67 48 50 36

Magnetic filters

1 Type F - fitting part with flange - overall length 100 mm / 4"

2 Type FS - fitting part without flange - overall length 50 mm / 2"

INSTALLATION

H250 M40

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3.3.3 Heat insulation

CAUTION!

The indicator housing may not be heat-insulated.

The heat insulation 3 may only reach to the housing mounting 4.

1 Standard indicator M40

2 Indicator with HT extension

CAUTION!

The heat insulation 1 may only reach to the rear of the housing 2. The area around the cable

entries 3 must be freely accessible.

Figure 3-1: Insulation - cross section

ELECTRICAL CONNECTIONS

H250 M40

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4.1 Security information

DANGER!

All work on the electrical connections may only be carried out with the power disconnected. Take

note of the voltage data on the nameplate!

DANGER!

Observe the national regulations for electrical installations!

DANGER!

For devices used in hazardous areas, additional safety notes apply; please refer to the Ex

documentation.

WARNING!

Observe without fail the local occupational health and safety regulations. Any work done on the

electrical components of the measuring device may only be carried out by properly trained

specialists.

INFORMATION!

Look at the device nameplate to ensure that the device is delivered according to your order.

Check for the correct supply voltage printed on the nameplate.

ELECTRICAL CONNECTIONS

H250 M40

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4.2 Electrical connection indicator M40

4.2.1 Limit switches K1/K2

The M40 indicator can be fitted with a maximum of two limit switches. The limit switch works as

a slot sensor which is inductively activated via the semi-circular metal vane of the pointer. The

switching points are set using the contact pointers. The position of the contact pointers is

indicated on the scale.

The connection terminals have a pluggable design and can be removed to connect the cables.

The built-in limit switch types are shown on the nameplate of the indicator.

Electrical connection of the limit switches

Limit switch module

1 Min. contact

2 Max. contact

3 Locking screw

4 Maximum pointer

5 Connection terminal

Contact MIN MAX

Terminal no. 123456

Connection 2-wire NAMUR - + - +

Connection 3-wire + - + -

Connection Reed SPST + - + -

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Setting is carried out directly via contact pointers 1 and 2:

• Slide the scale aside.

• Loosen the locking screw 3 slightly.

• Slide the scale back to the latching point.

• Set contact pointers 1 and 2 to the desired switching point.

After setting:

After setting:After setting:

After setting: Fix the contact pointers with the locking screw 3.

Limit switch connection terminals

1 2-wire limit switch NAMUR

2 3-wire limit switch

3 Limit switch Reed SPST

4 Terminal connection of Min. contact

5 Terminal connection of Max. contact

6 3-wire load

7 NAMUR isolated switching amplifier

8 3-wire power supply

Limit setting

Figure 4-1: Limit switch settings

1 Contact pointer MAX

2 Contact pointer MIN

3 Locking screw

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If the pointer vane goes into the slot, an alarm is triggered. If the pointer vane is outside of the

proximity switch, a wire break in a NAMUR contact also triggers the alarm.

The 3-wire limit switch does not have any wire break detection.

Current consumption in the position shown:

Switch contact definition

1 MIN contact

2 MAX contact

3 Pointer vane with switching vane

Definition MinMin - MaxMax

1 MIN 2 contact or MAX 1 contact

2 MIN 1 contact or MAX 2 contact

Contact Type Current

MIN 1 NAMUR ≤ 1mA

MIN 2 NAMUR ≤ 1mA

MAX 1 NAMUR ≥ 3mA

MAX 2 NAMUR ≥ 3mA

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4.2.2 ESK4 / ESK4A current output

The connecting terminals of the ESK4 / ESK4A have a pluggable design and can be removed in

order to connect the cables.

Power supply M40 with galvanic isolation

Power supply M40 with galvanic isolationPower supply M40 with galvanic isolation

Power supply M40 with galvanic isolation

Wiring must be planned with great care when it comes to connecting other devices such as

evaluation units or process control. Internal connections in these devices (e.g. GND with PE,

mass loops) may lead to non-permitted voltage potentials which could negatively affect the

function of the converter itself or that of a device connected to it. In such cases a protected extra-

low voltage (PELV) is recommended.

ESK4 / ESK4A connection

1 Current output of ESK4 / ESK4A

2 Power supply 14...30 VDC

3 Measuring signal 4...20 mA

4 External load, HART

communication

1 Terminal connection

2 Converter isolator with galvanic isolation

3 Power supply (refer to isolator information)

4 Measuring signal 4...20 mA

5 External load, HART

communication

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Power supply

Power supplyPower supply

Power supply

The required supply voltage can be calculated using the formula below:

ext.

= R

* 24 mA + 14 V

with

ext.

= minimum supply voltage

= total measuring loop resistance

HART

HARTHART

HART® communication

When HART

communication is carried out with the ESK4, the analogue measured data

transmission (4...20 mA) is not impaired in any way.

Exception for multidrop operation. In multidrop operation a maximum of 15 devices with HART

function can be operated in parallel, whereby their current outputs are switched to inactive

(I approx. 4 mA per device).

INFORMATION!

The supply voltage has to be between 14 VDC and 30 VDC. This is based on the total resistance of

the measuring loop. To calculate this, the resistance of each component in the measuring loop

(not including the device) must be added together.

INFORMATION!

The power supply has to be able to supply a minimum of 30 mA.

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Load for HART® communication

The maximum load resistance is calculated as follows:

Configuration

The ESK can be configured via HART

communication. DD (Device Description) for AMS and PDM

as well as a DTM (Device Type Manager) for PACTware

are available for configuration. They

can be downloaded free of charge from the website of the manufacturer.

The current flow rate can be transmitted using the integrated HART

communication. A flow

counter can be configured. Two limit values can be monitored. The limit values are assigned

either to flow values or to the counter overflow.

Self monitoring - Diagnostics

During both start-up and operation, a wide variety of diagnostic functions are performed

cyclically in the ESK4 / ESK4A in order to guarantee function reliability. When an error is

detected, a failure signal (high) is activated (current > 21 mA, typically 22 mA) via the analogue

output. In addition more detailed information can be requested via HART

(CMD#48). The failure

signal is not activated for information and warnings.

Diagnostic functions (Monitoring):

•Plausibility of FRAM data

•Plausibility of ROM data

•Working range of internal reference voltages

•Signal detection of the measuring range of the internal sensors

•Temperature compensation of the internal sensors

•Calibration based on the application

•Plausibility of counting value

•Plausibility of physical unit, system and selected unit

For ESK4A (HART

7) the diagnosis is reported in compliance with NE 107.

INFORMATION!

For HART

communication a load of at least 230 Ω is required.

DANGER!

Use a twisted two-core cable to prevent electrical interference from impeding the DC output

signal.

In some cases a shielded cable may be necessary, e.g if noise levels higher than the NE 21

specification are anticipated.

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4.2.3 ESK4-T limit outputs

Once the housing cover has been unscrewed, the scale can be removed. The connection

terminals have a pluggable design and can be removed to connect the cables.

The binary inputs/outputs are electrically isolated from each other and from the ESK4 / ESK4A

current output.

Connection binary outputs

Connection binary outputsConnection binary outputs

Connection binary outputs

In accordance with the desired signal transmission, select one of the following connection types

for binary outputs B1 and B2:

•NAMUR (DC interface acc. to EN 60947-5-6)

•Transistor output (passive, Open Collector)

1 Binary output 1

2 ESK4 / ESK4A power supply / current output

3 Binary output 2

4 Binary input

INFORMATION!

The binary inputs/outputs can only be operated if the power supply is applied to ESK4 / ESK4A

terminal 11+ and 12-. The binary inputs/outputs are inactive by default and must thus be

activated prior to first use (for details refer to ESK4-T menu on page 46

Binary output B1 B2

Terminal no. 123456

Connection NAMUR + - + -

Connection transistor output + B

+ B

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Value range for NAMUR

Value range applies only when connected to a switching amplifier with the following

reference values:

•Open-circuit voltage U

= 8.2 VDC

•Internal resistance R

= 1 kΩ

Value range for transistor output

To ensure the value ranges, a load R

between 250 Ω and 1 kΩ is recommended for the passive

transistor output with a nominal voltage of 24 VDC.

If other loads are used, caution is advised as the range of values of the signal voltages then no

longer corresponds to the range of values for the inputs of process control systems and controls

(DIN IEC 946).

1 NAMUR terminal connection

2 Isolated switching amplifier

3 OC switch output terminal connection

4 Power supply U

ext.

5 Load R

NC contact NO contact

Switching value reached < 1 mA > 3 mA

Switching value not reached > 3 mA < 1 mA

Signal voltages U

[V] U

[V]

lower limit upper limit lower limit upper limit

via load R

0 2 16 30

Signal currents I

[mA] I

[mA]

lower limit upper limit lower limit upper limit

Category 2 0 2 20 110

CAUTION!

The upper limit of the signal current must not be exceeded as this may damage the transistor

output.

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4.2.4 ESK4-T pulse output

The pulse output B2 is a passive "open collector" output which is electrically isolated from the

current output and output B1. It can be operated as a low-resistance output or as a NAMUR

output.

The pulse width t

can be configured from 50...500 ms in the indicator menu.

INFORMATION!

The binary outputs can also be operated as pulse outputs. When using the binary outputs as a

pulse output, two separate signal circuits are required. Each signal circuit requires its own

power supply.

The total resistance 4 must be adapted so that the total current I

tot

does not exceed 100 mA.

Electrical connection of pulse output

1 Terminal for power supply - current output

2 Terminal B2

3 Flow measurement 4...20 mA

4 Pulse output load e.g. counter

5 Power supply for ESK4

6 Power supply for pulse output

Figure 4-2: Data for pulse output

1 f

max

= 10 Hz

2 t

3 t

off

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4.2.5 ESK4-T binary input

The binary input can be used to control the internal flow counter (start/stop/reset).

Value range for NAMUR

This binary input can be activated in the menu of the indicator and can be configured to ACTIVE

HI or ACTIVE LO.

If the input is set as ACTIVE LO, an interruption causes the counter to be reset.

For further information on configuration of each function refer to

ESK4-T menu

on page 46.

Value range

The binary input has an internal resistance R

of 20 kΩ.

Binary input B3

Terminal no. 7 8

Connection + -

Binary input

1 Function active HI

2 Function active LO

Input voltage U

[V] U

[V]

lower limit upper limit lower limit upper limit

Terminal (7) (8) 0 2 16 30

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4.2.6 ESK4-FF / ESK4-PA fieldbus communication

ESK4-FF / ESK4-PA

•2-wire, bus-supplied

•Polarity protected

•Bus voltage 9...32 VDC

•Nominal current 16 mA

1 FF HSE Bus / Profibus DP

2 Linking device / bus coupler

3 FF H1 Bus / Profibus PA, 2-wire with shielding

4 H250/M40/ESK4-FF / H250/M40/ESK4-PA

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4.2.7 Harting HAN 7D connection

1 Terminal pin assignment of HAN

7D - View of plug connection

Combinations of K1 / K2 and ESK4 / ESK4A are possible.

1 Pin no. HAN

7D K1/K2: NAMUR

contacts

R1/R2 Reed

contacts

ESK4/ESK4A Terminal no.

NAMUR Reed

12 NAMUR MIN (-) 2 Reed MIN - 1 1

22 NAMUR MIN (+) 2 Reed MIN - 2 3

33 NAMUR MAX (-) 3 Reed MAX - 4 4

43 NAMUR MAX (+) 3 Reed MAX - 5 6

5 - - 4 4...20mA (+) 11

6 - - 4 4...20mA (-) 12

7 - - -

8 - - -

1 Pin no. HAN

7D ESK4-T Terminal no.

15 Binary output B1 open coll. (+) 1

25 Binary output B1 open coll. (-) 3

37 Binary output B2 open coll. (+) 4

47 Binary output B2 open coll. (-) 6

56 4...20mA (+) 11

66 4...20mA (-) 12

7 -

8 -

INFORMATION!

No Harting connection for module ESK4-FF/PA is provided and is only available on request.

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4.3 Grounding connections

4.4 Ingress protection

The measuring device meets all requirements of ingress protection IP66/68.

Therefore it is essential to observe the following points.

• Use only original gaskets. They must be clean and free of any damage. Defective gaskets must

be replaced.

• The electrical cables must be undamaged and must comply with regulations.

• The cables must be laid with a loop 3 upstream of the measuring device to prevent water

from getting into the housing.

• The cable feedthroughs 2 must be tightened.

• Close the unused cable feedthroughs using blanking plugs 1.

1 Grounding connection in the indicator

2 Grounding connection outside

DANGER!

The grounding wire may not transfer any interference voltage.

Do not use this grounding cable to ground any other electrical devices.

DANGER!

After all servicing and maintenance work on the measuring device, the specified protection class

must be ensured again.

1 Use blanking plugs if no cable is routed through

2 Tighten cable feedthrough firmly

3 Lay the cable in a loop

START-UP

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5.1 Standard device

A minimum operating pressure (primary pressure) is necessary to operate the device:

5.2 Indicator ESK4-T

Start

After the device is switched on, the display shows

•"INITIALISING"

•Firmwareversion IO-Modul

The device first performs a self-test. Here, all of the parameters preset for the customer are

analysed and checked for plausibility. The device then switches to measuring mode and indicates

the current measured value.

Operation

CAUTION!

When starting up the device, the following points must be observed:

•

Compare the actual operating pressure and the product temperature of the system with the

specifications on the nameplate (PS and TS). These specifications may not be exceeded.

•

Make sure materials are compatible.

•

Slowly open the shut-off valve.

•

When measuring liquids ensure that the pipelines are carefully evacuated.

•

When measuring gases, increase pressure slowly.

•

Avoid float impact (e.g. caused by solenoid valves), as this is likely to damage the measuring

unit or float.

Medium Pressure loss : operating pressure

Liquids 1 : 2

Gases without float damping 1 : 5

Gases with float damping 1 : 2

INFORMATION!

The device is always preset for the user and his application.

INFORMATION!

The device is low-maintenance

Comply with the application limits with regard to temperature of the medium and ambient

temperature.

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6.1 ESK4 / ESK4A - Loop Check Mode

The ESK4 / ESK4A is equipped with a loop check function, enabling a simple test of the entire

4…20 mA current loop.

It is activated and operated using a microswitch 1.

• Press and hold the microswitch 1 for more than 6 seconds to activate the loop check mode 3.

The current output jumps to constant 4 mA.

• Change the current output from constant 4 mA to constant 20 mA as often as you like by briefly

pressing it (less than 6 seconds) to check the function of the measuring circuit.

• Exit loop check mode by holding down the microswitch (longer than 6 seconds). The current

output jumps back to measuring mode 2.

CAUTION!

When activating the loop check mode, ensure that no alarms are unintentionally triggered in the

downstream system components.

INFORMATION!

If the microswitch has not been pressed for longer than 60 seconds, the ESK4 / ESK4A

automatically returns to measuring mode 2.

OPERATION

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6.2 Operating elements ESK4-T

The device is operated with the cover on the front open, using the mechanical keys

keyskeys

keys, or with the

cover closed using a bar magnet

bar magnetbar magnet

bar magnet.

The mechanical keys and keys for the bar magnet have the same functionality. In this

documentation the keys are represented as symbols to describe the operating functions:

CAUTION!

The switching point of the magnetic sensors is directly at the height of the corresponding circle

(see figure). Only touch the circle vertically and from the front using the bar magnet. Touching it

from the side may cause an error in the measurement as the float position is recorded by the

magnetic field sensors.

Figure 6-1: Display and operating elements

1 Enter button (circuit for bar magnet)

2 Up button (circuit for bar magnet)

3 Right button (circuit for bar magnet)

Key Symbol

1Enter ^

2up ↑

3right →

Table 6-1: ESK4-T operation keys

OPERATION

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6.3 Basic principles of operation ESK4-T

6.3.1 Description of the operating keys

6.3.2 Navigation within the menu structure

Navigate through the menu using the →, ↑ and ^

^ keys. Pressing the → key takes you one menu

lower. Using the ↑ key takes you one menu item higher (e.g. from 1 to 2). Pressing the ^

^ key

takes you one menu higher.

If you are already at the lowest level (function level), the key takes you to the change mode,

where you can set data and values.

If you are at the first level (main menu), you can use the ^

^ key to exit the menu mode and return

to the measuring mode.

If settings were changed, the query whether they should be saved will appear. Confirm this query

with the → key or cancel it with the ^

^ key.

→Switch from measuring mode to menu mode

Switch to one menu level lower

Open menu item and activate change mode

Confirm query whether data should be accepted

In change mode:

In change mode:In change mode:

In change mode: Move the input cursor one position to the right. After the last digit the

input cursor jumps back to the beginning.

↑Change between the menu items within a menu level

In measuring mode:

In measuring mode:In measuring mode:

In measuring mode: Switch between measured values and error messages

In change mode:

In change mode:In change mode:

In change mode: Changing parameters or settings. Run through the available characters

(including decimal point.

^In measuring mode:

In measuring mode:In measuring mode:

In measuring mode: Switch between measured value display and error messages /

warnings

Switch to one menu level higher

Return to measuring mode with a query whether the data should be accepted

Cancel the query, whether data should be accepted

Table 6-2: Description of the operating keys

Measuring

mode

→Main menu

↑

→Submenu

↑

→Function

↑

→Edit

→

↑

^ ^

Table 6-3: Navigation in menu structure

OPERATION

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6.3.3 Change the settings in the menu

Starting operation

Operation is started using the → key.

If an operation lock is set, the code (→ → → ^ ^ ^ ↑ ↑ ↑) must be entered. The code can be set

in menu 3.13. The code shown here is set at the factory but not activated. If no key is activated

within 5 seconds or an incorrect code is entered, a warning message is displayed and the

indication returns to measuring mode.

Exit operation

Operation is exited by pressing the ^

^ key several times.

If data have been changed:

Example: Changing the flow unit from m3/h to l/h

Save Yes →Changes are accepted. An update is carried out and the display returns to

measuring mode.

Save No ^

^Changes are discarded and the display returns to measuring mode.

CAUTION!

Each time parameters or settings are changed, the measuring device carries out an internal

plausibility check.

If inplausible entries were made, a warning message is shown. If this warning is confirmed with

the ^

^ key, the display returns to the respective menu item without saving the relevant change. A

new entry can now be made.

Display Display

Example: 7.2

1x →Fct. 3.11.1

MEAS'D VALUE

1x →Fct. 1

OPERATION 1x →10.0000

2x ↑Fct. 3

INSTALLATION 4x ↑10000

l/h

1x →Fct 3.1

LANGUAGE Confirm with →

deny ^

10x ↑Fct 3.11

1111

FS&UNIT 3x ^

^7200

l/h

OPERATION

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6.4 Overview of the units ESK4-T

Volume units can either represent real operating volumes (no prefix before the unit) or standard

volumes virtually converted to reference statuses.

In addition to the predefined units shown here, a user-defined unit can be activated in Menu 3.12

by entering a conversion factor and a unit designation as free text.

Prefix Volume definition

None Operating volume flow e.g. m

/h or ft

NVolume flow at standard (norm.) conditions (0°C - 1.013 bara) acc. to DIN 1343 e.g. Nm

SVolume flow at standard (std.) conditions (15°C - 1.013 bara) acc. to ISO 13443 e.g. Sft

Measured variables Units

Operating

volume flow m

/s m

/min m

/h m

L/s L/min L/h -

/s ft

/min ft

/h ft

gal/s gal/min gal/h gal/d

bbl/s bbl/min bbl/h bbl/d

ImpGal/s ImpGal/min ImpGal/h ImpGal/d

Standard (norm.)

volume flow Nm

/s Nm

/min Nm

/h Nm

NL/s NL/min NL/h -

Standard (std.)

volume flow Sm

/s Sm

/min Sm

/h Sm

SL/s SL/min SL/h -

Sft

/s Sft

/min Sft

/h Sft

Mass flow g/s g/min g/h -

kg/s kg/min kg/h kg/d

- t/min t/h t/d

lb/s lb/min lb/h lb/d

-STon/min STon/h STon/d

- - LTon/h LTon/d

Operating

volume totalizer m

lhl ft

ImpGal gallon bbl bbl (liq)

Standard (norm.)

volume totalizer Nm

Standard (std.)

volume totalizer Sft

SL Sm

Mass totalizer kg g t lb

STon LTon

Temperature °C°F K

OPERATION

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6.5 Error messages ESK4-T

Error messages and warnings are indicated by one of the following symbols in the bottom left

corner of the display. The ^

^ key switches from the measured value display to the display of

current errors / warnings. The table below contains a description of possible error messages.

Symbol NE107

Category

Description Consequence

FFailure No measured value available

Output signal invalid

Error current signal is output.

SOut of specification Measurement available but increasing

measurement uncertainty. Device must

be checked.

MMaintenance required Measurement still sufficiently accurate

but maintenance required.

CFunction check Device is in test or linearization mode.

The output signal temporarily does not

correspond to the measurement.

IInformation No influence on the measurement,

information only.

Error message Description Category Remedy

NOT LINEARIZED Linearization faulty or not

activated = measuring

error

SActivate linearization or carry it out again (HART

communication and linearization software are

required; the original calibration values must be

known), or send the device back to the

manufacturer for linearization.

NEW LINEARI. TABLE

BAD Faulty or missing data in

the linearization table =

measuring error

S 1

LINEARIZATIO UNDER

CONFIG The device is in

linearization mode =

measuring error

SComplete the linearization and activate it (HART

communication and linearization software are

required), or send the device back to the

manufacturer for linearization.

UNIT SYSTEM

CONFLICT The unit for the

linearization flow is

incompatible with the

selected flow type

(mass/volume)

SCorrect error, carry out linearization again if

necessary (HART

communication and

linearization software are required), or send the

device back to the manufacturer for linearization.

TOO FEW ENTRIES The linearization table has

too few data points SCarry out linearization at at least 5 points (HART

communication and linearization software are

required), or send the device back to the

manufacturer for linearization.

NOT MONOTONOUS The sequence of the

linearization values is not

strictly monotonic

increasing

SCheck linearization and/or carry it out again

(HART

communication and linearization

software are required), or send the device back to

the manufacturer for linearization.

FIRST NOT 0 % The first flow value if the

linearization table is not

LAST NOT 100 % The last flow value if the

linearization table is not

100%

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NO ZERO CAL

OF AO The current output zero

point 4.00 mA is not

calibrated = poss.

measuring error in the

process control system

SPerform calibration using ammeter and menu

3.10 or using standard HART

tools/process

control system and poss. external ammeter.

Caution: during calibration, switch the measuring

point to manual control.

NO F.SC. CAL

OF AO The current output 100% =

20.00 mA is not calibrated

= poss. measuring error in

the process control

system

SPerform calibration using ammeter and menu

item 3.11 or using standard HART

tools and

external ammeter if necessary. Caution: during

calibration, switch the measuring point to manual

control.

NO TEMP.

COMPENSATION The sensor temperature

compensation of the

device is faulty or was not

carried out = possible

measuring error

SThe device, together with an indication of the

error, must be sent back to the manufacturer for

checking.

WRONG ELEC.REV. The ER revision of the

ESK4 / ESK4A is not

compatible with the add-

on module, or the ribbon

cable connection is not

connected properly.

SCheck that the ribbon cable fits properly. Check

module compatibility (for details refer to

Electronic revision

on page 18).

OUTPUT NOT

LINEARIZED Linearization is not

activated = measuring

error

SActivate linearization or carry it out again (HART

communication and linearization software are

required; the original calibration values must be

known), or send the device back to the

manufacturer for linearization.

COUNTER LOST Totalizer value was reset

by error/overflow S 1 Because the reset time is not known: Controlled

reset of the counter using menu item 1.6.1 or

using HART

tools/process control system.

FRAM WRITE FAULT Internal communication

error FCheck whether the display is plugged in correctly

and restart the device. If the error occurs again:

send the device back to the manufacturer with an

indication of the error.

ROM/FLASH ERROR Memory error detected

during self-test. FRestart device. If the error occurs again: send the

device back to the manufacturer with an

indication of the error.

RESTART OF DEVICE A device restart has taken

place IThe device has been restarted using menu item

1.6.2 since the last time the error messages were

reset.

MULTIDROP MODE The HART

multidrop

mode is activated. The

current output is set to a

fixed value of 4.5 mA.

IThe HART

multidrop mode is activated with

selection of a polling address not equal to 0 using

menu item 3.7. Polling address 0 reactivates the

current output.

CRYSTAL OSC FAULT Internal error in device FThe device must be sent back to the manufacturer

with an indication of the error.

REF VOLTAGE FAULT Internal error in device

SENSOR A FAULT Internal error in device F 1

SENSOR B FAULT Internal error in device

MEMORY

CORRUPTION Internal memory error,

caused by a hardware or

software problem

FRestart the device; if the error occurs again the

device must be sent back to the manufacturer

with an indication of the error.

AO FIXED The current output is set

to a fixed value. IThe current output is fixed and does not reflect

the measured value. This is the case in multidrop

mode, with current output test/calibration using

the menu or HART

AO SATURATED Current output saturated IThe current output is saturated at >20.4 mA and is

no longer linked to the measurement.

Error message Description Category Remedy

OPERATION

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6.6 ESK4-T menu

6.6.1 Factory settings

ERROR TIMEOUT Data not transferred, or

transferred incorrectly

from the ESK to the

counter module

FConfirm menu item "1.6.3 WRITE INFO I/O".

WARNING TIMEOUT I

1Category can be changed by user

Error message Description Category Remedy

Function Setting

1.1.1 OUTPUT B1 INACTIVE

1.2.1 OUTPUT B2 INACTIVE

1.3.1 PULSEWDTH 50ms

1.3.2 PULSE/UNIT 1 Pulse/Unit

1.4 DISPLAY MEAS’D VALUE

1.4.2 ROTATION 0°

1.5 TIME CONST. 1.0s

1.6.1 COUNTER NO

1.6.2 ERROR NO

1.6.3 RE-INIT I/O NO

3.1 LANGUAGE ENGLISH

3.2 FUNCTION B1 INACTIVE

3.3 CONTACT B1 NORM.OPEN

3.4 FUNCTION B2 INACTIVE

3.5 CONTACT B2 NORM.OPEN

3.6 FUNCTION B3 INACTIVE

3.7 MULTIDROP POLLING ADD: 00

3.8 4mA CALIBR. 4.000mA

3.9 20mA CALIBR. 20.000mA

3.10 ALARM CURR. ALARM HIGH

3.11 FS&UNIT Application specific

3.11.2 COUNTER Application specific

3.12 EDIT UNIT User defined unit / factor

3.13 L.FL.CUTOFF 4% ON; 6% OFF

3.14 DESCRIPTOR Free text

3.15 ENTRY CODE OFF

3.16 DEFAULT VAL. NO

INFORMATION!

The measuring device has been preset at the factory in accordance with the customer order.

Therefore subsequent configuration via the menu is only necessary if the intended use of the

device is changed.

OPERATION

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6.6.2 Menu structure

Main menu Submenu 1 Submenu 2

1 OPERATION 1.1 OUTPUT B1 1.1.1 INACTIVE, MEAS.VAL. B1, CNT. VAL. B1, PULSE WIDTH

1.1.2 HYST. B1, PULSE/UNIT

1.2 OUTPUT B2 1.2.1 INACTIVE, MEAS.VAL. B2, CNT. VAL. B2, PULSE WIDTH

1.2.2 HYST. B2, PULSE/UNIT

1.3 PULSE OUTP. 1.3.1 PULSE WIDTH

1.3.2 PULSE/UNIT

1.4 DISPLAY 1.4.1 MEAS'D VALUE, COUNTER, MV/COUNTER, MV&COUNTER,

PERCENT

1.4.2 ROTATION

1.5 TIME CONST -

1.6 RESET 1.6.1 COUNTER

1.6.2 ERROR

1.6.3 WRITE INFO IO

2 TEST & INFO 2.1 4-20mA OUTP 2.1.1 NORMAL OP

2.1.2 4.0mA

2.1.3 5.6mA

2.1.4 7.2mA

2.1.5 8.8mA

2.1.6 10.4mA

2.1.7 12.0mA

2.1.8 13.6mA

2.1.9 15.2mA

2.1.10 16.8mA

2.1.11 18.4mA

2.1.12 20.0mA

2.1.13 21.6mA

2.2 ALARM CURR. ALARM HIGH, ALARM LOW

2.3 OUTPUT B1 2.3.1 NORMAL OP

2.3.2 OPEN

2.3.3 CLOSED

2.4 OUTPUT B2 2.4.1 NORMAL OP

2.4.2 OPEN

2.4.3 CLOSED

2.5 INPUT B3 ACTIVE HI, ACTIVE LO, ON, OFF

2.6 DEV. IDENT. 2.6.1 ELEC. REV.

2.6.2 SERIAL ESK4

2.6.3 PROD. ORDER

2.6.4 DEV. SN.

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2 TEST & INFO 2.7 SOFT.VERSION 2.7.1 FW. ESK4

2.7.2 FW. ESK4 I/O

2.8 TAG NB. 8 characters

2.9 LONG TAG 32 characters

3 INSTALLATION 3.1 LANGUAGE 3.1.1 ENGLISH

3.1.2 DEUTSCH

3.1.3 FRANCAIS

3.1.4 ITALIANO

3.1.5 ESPANOL

3.1.6 CESKY

3.1.7 POLSKI

3.1.8 NEDERLANDS

3.1.9 DANSK

3.2 FUNCTION B1 INACTIVE, SWITCH POINT, COUNT. LIMIT, PULSE OUTP.

3.3 CONTACT B1 NORM.OPEN, NORM.CLOSED

3.4 FUNCTION B2 INACTIVE, SWITCH POINT, COUNT. LIMIT, PULSE OUTP.

3.5 CONTACT B2 NORM.OPEN, NORM.CLOSED

3.6 FUNCTION B3 INACTIVE, ACTIVE HI, ACTIVE LO, STARTH STOPL, STARTL STOPH

3.7 MULTIDROP POLLING ADD.

3.8 4mA CALIBR. 4.000mA

3.9 20mA CALIBR. 20.000mA

3.10 ALARM CURR. OFF, ALARM HIGH, ALARM LOW

3.11 FS&UNIT 3.11.1 MEAS'D VALUE

3.11.2 COUNTER

3.12 EDIT UNIT 3.12.1 MEAS'D VALUE

3.12.2 COUNTER

3.13 L.FL.CUTOFF 3.13.1 CONTROL ON, CONTROL OFF

3.13.2 ON VALUE

3.13.3 OFF VALUE

3.14 DESCRIPTOR Free text

3.15 ENTRY CODE OFF, ON

3.16 DEFAULT VAL. SET ALL

Main menu Submenu 1 Submenu 2

OPERATION

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6.6.3 Menu description

1 OPERATION

Selection / Input Explanation

1.1 OUTPUT B1

1.1 OUTPUT B11.1 OUTPUT B1

1.1 OUTPUT B1 Output B1 is a binary switching output. In Fct. 3.2, one of the following functions can be

selected for this output:

INACTIVE, SWITCH POINT, COUNT. LIMIT, PULSE OUTP.

One of the following functions can be selected as contact type in Fct. 3.3:

NORM.OPEN 1 / NORM.CLOSED 2

1.1.1

INACTIVE -

MEAS.VAL. B1 Switching point of flow value

Value range: 0.0…full scale range

The switching point is entered in flow units.

If the current flow value exceeds this pre-determined switching point, output B1 changes

its binary state 3.

In Fct. 1.1.2 a hysteresis can be specified additionally.

CNT. VAL. B1 Switching point of totaliser value

Value range: 0.0…counter limit

The switching point is entered in volume or mass units.

If the the current counter value exceeds this pre-determined switching point, output B1

changes its binary state 3.

There is no hysteresis setting for the switching point of the counter value.

PULSE WIDTH Pulse weight (pulse/unit)

The weight is only displayed here.

A configuration takes place in Fct. 1.3.1 PULSE WIDTH, 1.3.2 PULSE/UNIT and 3.11.2

COUNTER.

1.1.2 HYST. B1 Hysteresis for the switching point of the flow value

Value range: 0.0…switching point

If the current flow value exceeds the pre-determined switching point from Fct. 1.1.1,

output B1 changes its binary state 3.

In order for output B1 to change its binary state back to the initial setting, the switching

point made smaller by the hysteresis must be undershot 4.

Example:

Example:Example:

Example:

In 1.1.1, a switching point of 200 L/h is set.

The possible value range for the hysteresis is then 0.0…200 L/h.

With a hysteresis value of 0, the switching point has no hysteresis (3=4).

If a hysteresis value of 20 L/h is entered, output B1 changes its binary state to the initial

setting, if it drops below 180 L/h 4.

OPERATION

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1.2 OUTPUT B2

1.2 OUTPUT B21.2 OUTPUT B2

1.2 OUTPUT B2 Output B2 is a binary switching output. In Fct. 3.4, one of the following functions can be

selected for this output:

INACTIVE, SWITCH POINT, COUNT. LIMIT, PULSE OUTP.

One of the following functions can be selected as contact type in Fct. 3.5:

NORM.OPEN 1 / NORM.CLOSED 2

1.2.1

INACTIVE -

MEAS.VAL. B2 Refer to MEAS.VAL. B1

In Fct. 1.2.2 a hysteresis can be specified additionally.

CNT. VAL. B2 Refer to CNT. VAL. B1

PULSE WIDTH B2 Refer to PULSE WIDTH B1

A configuration takes place in Fct. 1.3.1 PULSE WIDTH, 1.3.2 PULSE/UNIT and 3.11.2

COUNTER.

1.2.2 HYST. B2 Refer to HYST. B1

1.3 PULSE OUTP.

1.3 PULSE OUTP.1.3 PULSE OUTP.

1.3 PULSE OUTP. -

1.3.1 PULSE WIDTH

50ms T

= 50 ms; f

max

= 10 Hz

max. pulses/h = 36000

100ms T

= 100 ms; f

max

= 5 Hz

max. pulses/h = 18000

200ms T

= 200 ms; f

max

= 2.5 Hz

max. pulses/h = 9000

500ms T

= 500 ms; f

max

= 1 Hz

max. pulses/h = 3600

1.3.2 PULSE/UNIT 0.001...1000

Pulse per volume or mass unit of counter (setting in Fct. 3.11.2), which can be output via

one of the binary outputs. The maximum frequency for the pulse output (refer to Fct 1.3.1)

cannot be exceeded, even at maximum flow rate (full scale).

Example:

Example:Example:

Example:

Final value Q

max

= 1200 L/h; volume unit of counter = Litre; pulse width = 100ms;

If the factor 1 is entered, 1 pulse/litre = 1200 pulses are generated in one hour at maximum

flow rate.

Number of max. permissible pulses:

Selection / Input Explanation

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1.4 DISPLAY

1.4 DISPLAY1.4 DISPLAY

1.4 DISPLAY Different measured values can be selected for permanent or alternating display.

The reading on the display can be rotated.

1.4.1

MEAS’D VALUE Permanent display of flow in flow units

COUNTER Permanent display of totalizer

MEAS.VAL/CTN Alternating display of flow value in flow units and totalizer

MEAS.VAL&CTN Simultaneous display of flow value and totalizer

PERCENT Permanent display of flow value in percent

1.4.2 ROTATION

0°The reading is not rotated.

90°The reading on the display is rotated by 90°.

180°The reading on the display is rotated by 180°.

270°The reading on the display is rotated by 270°.

1.5 TIME CONST

1.5 TIME CONST1.5 TIME CONST

1.5 TIME CONST 0.0...20.0s

Given in seconds

The output variables (value of the current loop and indicated flow value) follow the current

process by the value set here (in seconds) with a time delay.

Note:

Note:Note:

Note:

If the current flow is polled via HART

communication, the transferred measured value is

also played back with a delay.

1.6 RESET

1.6 RESET1.6 RESET

1.6 RESET Local resetting of totalizer and acknowledgement of warnings.

There is always a safety prompt ("YES / NO"), to avoid accidental resetting.

Note:

Note:Note:

Note:

External resetting of the totalizer can be installed with the binary input B3.

1.6.1 COUNTER Confirming with "YES" resets the value of the totalizer to 0.0.

1.6.2 ERROR Confirming with "YES" acknowledges all existing warnings.

Note:

Note:Note:

Note:

Confirming with "YES" acknowledges existing errors and warnings.

1.6.3 RE-INIT IO As a general rule, data is transferred from the counter module to the ESK4 and vice versa

when the device starts. For safety, another data transmission can be performed by

selecting this menu item and confirming with "YES".

OPERATION

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2 TEST & INFO

Selection / Input Explanation

2.1 4-20mA OUTP

2.1 4-20mA OUTP2.1 4-20mA OUTP

2.1 4-20mA OUTP Testing the current loop by setting various current values.

Note:

Note:Note:

Note:

The test is not available in HART

multi-drop mode (refer to Fct. 3.7)

Attention:

Attention:Attention:

Attention:

During the test, the value of the current loop does not follow the current process.

2.1.1 NORMAL OP The value of the current loop follows the current process.

2.1.2 4.0mA The value of the current loop no longer follows the current process.

It is set to the selected current value.

2.1.3 5.6mA

2.1.4 7.2mA

2.1.5 8.8mA

2.1.6 10.4mA

2.1.7 12.0mA

2.1.8 13.6mA

2.1.9 15.2mA

2.1.10 16.8mA

2.1.11 18.4mA

2.1.12 20.0mA

2.1.13 21.6mA

2.2 OUTPUT B1

2.2 OUTPUT B12.2 OUTPUT B1

2.2 OUTPUT B1 <3.6 / >21 mA

Testing the alarm current HIGH/LOW according to the settings in Fct. 3.10.

2.3 ALARM CURR.

2.3 ALARM CURR.2.3 ALARM CURR.

2.3 ALARM CURR. Testing the binary switching output B1 by changing its binary status.

Attention:

Attention:Attention:

Attention:

During the test, the binary status does not correspond to the current process.

2.3.1 NORMAL OP The binary status of the switching output corresponds to the current process.

2.3.2 OPEN The binary status of the switching output no longer corresponds to the current process.

The selected status is tested.

2.3.3 CLOSED

2.4 OUTPUT B2

2.4 OUTPUT B22.4 OUTPUT B2

2.4 OUTPUT B2 Refer to 2.2 OUTPUT B1

2.4.1 NORMAL OP

2.4.2 OPEN

2.4.3 CLOSED

2.5 INPUT B3

2.5 INPUT B32.5 INPUT B3

2.5 INPUT B3 The current binary status of the binary input B3 is displayed. External switching of the

voltage applied to input B3 activates a change of the displayed binary status.

Note:

Note:Note:

Note:

A reaction to the switching of the voltage applied to input B3 only occurs if the function B3

is activated (refer to Fct. 3.6).

2.6 DEV. IDENT.

2.6 DEV. IDENT.2.6 DEV. IDENT.

2.6 DEV. IDENT. Information for device identification

2.6.1 ELEC. REV. Electronic revision

2.6.2 SN ESK4 Serial number ESK4

2.6.3 PROD. ORDER Production order for the complete flowmeter

2.6.4 DEV. SN. Serial number for the complete flowmeter

2.7 SOFT.VERSION

2.7 SOFT.VERSION2.7 SOFT.VERSION

2.7 SOFT.VERSION Information about software revision status

2.7.1 FW. ESK4 Software revision status for device insert ESK4-Basic

2.7.2 FW. ESK4 I/O Software revision status for optional add-on module ESK4-T

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3 INSTALLATION

2.8 TAG NB.

2.8 TAG NB.2.8 TAG NB.

2.8 TAG NB. 8 digits

Measuring point identifier

Alphanumerical characters. Up to eight digits are possible.

2.9 LONG TAG 32 digits

Measuring point identifier

Alphanumerical characters. Up to 32 digits are possible.

Selection / Input Explanation

3.1 LANGUAGE

3.1 LANGUAGE3.1 LANGUAGE

3.1 LANGUAGE Language selection for the displayed menu texts.

3.1.1 ENGLISH The menu texts are displayed in the selected language.

3.1.2 DEUTSCH

3.1.3 FRANCAIS

3.1.4 ITALIANO

3.1.5 ESPANOL

3.1.6 CESKY

3.1.7 POLSKI

3.1.8 NEDERLANDS

3.1.9 DANSK

3.2 FUNCTION B1

3.2 FUNCTION B13.2 FUNCTION B1

3.2 FUNCTION B1 -

INACTIVE The binary switching output B1 has no function.

SWITCHING POINT The binary switching point B1 acts as a limit switch depending on the current flow value.

Configuration of the switching point is in Fct. 1.1.1 MEAS.VAL. B1.

COUNT. LIMIT The binary switching point B1 acts as a limit switch depending on the current counter

value.

Configuration of the switching point is in Fct. 1.1.1 MEAS.VAL. B1.

PULSE OUTP. The binary switching point B1 acts as a pulse output depending on the current flow value.

Pulses of a maximum of up to 10 Hz can be generated. The configuration is in Fct. 1.3.1

PULSE WIDTH and 1.3.2 PULSE/UNIT.

Note:

Note:Note:

Note:

The configuration in Fct. 1.3.1 and Fct. 1.3.2 applies to both pulse outputs. If both B1 and B2

are configured as pulse outputs, both binary outputs behave in exactly the same way.

3.3 CONTACT B1

3.3 CONTACT B13.3 CONTACT B1

3.3 CONTACT B1 -

NORM.OPEN The contact type of the binary switching output B1 is "normally open".

NORM.CLOSED The contact type of the binary switching output B1 is "normally closed".

3.4 FUNCTION B2

3.4 FUNCTION B23.4 FUNCTION B2

3.4 FUNCTION B2 -

INACTIVE Refer to FUNCTION B1

SWITCHING POINT Refer to FUNCTION B1

Configuration of the switching point is in Fct. 1.2.1 MEAS.VAL. B2.

COUNT. LIMIT Refer to FUNCTION B1

Configuration of the switching point is in Fct. 1.2.1 MEAS.VAL. B2.

PULSE OUTP. Refer to FUNCTION B1

The configuration is in Fct. 1.3.1 PULSE WIDTH and 1.3.2 PULSE/UNIT.

3.5 CONTACT B2

3.5 CONTACT B23.5 CONTACT B2

3.5 CONTACT B2 -

NORM.CLOSED Refer to CONTACT B1

Selection / Input Explanation

OPERATION

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NORM.OPEN Refer to CONTACT B1

3.6 FUNCTION B3

3.6 FUNCTION B33.6 FUNCTION B3

3.6 FUNCTION B3 -

INACTIVE The binary switching input B3 has no function.

ACTIVE HI The internal flow counter is reset to 0.0 if there is an H level at input B3 for at least 100 ms.

ACTIVE LO The internal flow counter is reset to 0.0 if there is an L level at input B3 for at least 100 ms.

STARTH STOPL The counter is started by creating an H level at input B3 and stopped by creating an L level

at input B3.

STARTL STOPH The counter is started by creating an L level at input B3 and stopped by creating an H level

at input B3.

3.7 MULTIDROP

3.7 MULTIDROP3.7 MULTIDROP

3.7 MULTIDROP 0…15

Polling address for HART

multi-drop mode

When the address is 0, the HART

multi-drop mode is disabled.

Attention:

Attention:Attention:

Attention:

When the HART

multi-drop mode (Address 1…15) is activated, the current loop is inactive

(fixed current value of "4.5mA") and no longer follows the current process.

3.8 4mA CALIBR.

3.8 4mA CALIBR.3.8 4mA CALIBR.

3.8 4mA CALIBR. D/A calibration for lower range value (4mA)

Note:

Note:Note:

Note:

This function is not available in HART

multi-drop mode.

Attention:

Attention:Attention:

Attention:

During calibration, the value of the current loop does not follow the current process.

If an ampere meter detects in the 4...20 mA loop a deviation from the desired value of

"4.000mA", the measured value must be entered. The correction value is accepted

following the query to save and confirm with yes.

3.9 20mA CALIBR.

3.9 20mA CALIBR.3.9 20mA CALIBR.

3.9 20mA CALIBR. D/A calibration for the full scale value (20 mA)

Note:

Note:Note:

Note:

This function is not available in HART

multi-drop mode.

Attention:

Attention:Attention:

Attention:

During calibration, the value of the current loop does not follow the current process.

If an ampere meter detects in the 4...20 mA loop a deviation from the desired value of

"20.000mA", the measured value must be entered. The correction value is accepted

following the query to save and confirm with yes.

3.10 ALARM CURR.

3.10 ALARM CURR.3.10 ALARM CURR.

3.10 ALARM CURR. -

OFF Error indication via the current loop is deactivated. The current loop follows the current

process.

Note:

Note:Note:

Note:

This function is not available in HART

multi-drop mode.

ALARM HIGH Error indication via the current loop is activated (failure signal "high" acc. to NE43).

Note:

Note:Note:

Note:

This function is not available in HART

multi-drop mode.

ALARM LOW Error indication via the current loop is activated (failure signal "low" acc. to NE43).

Note:

Note:Note:

Note:

1) This function is not available in HART

multi-drop mode.

2) This function is supported from ER 2.2.x.

3.11 END&UNIT

3.11 END&UNIT3.11 END&UNIT

3.11 END&UNIT By changing the unit, the respective final value is scaled accordingly. Depending on

calibration, either units for volume or mass flow measurement are available for selection.

3.11.1 MEAS'D VALUE For units for volume flow or mass flow, refer to

Overview of the units ESK4-T

on page 43.

3.11.2 COUNTER For units for volume counter or mass counter and pulse output, refer to

Overview of the

units ESK4-T

on page 43.

Selection / Input Explanation

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3.12 EDIT UNIT

3.12 EDIT UNIT3.12 EDIT UNIT

3.12 EDIT UNIT User-defined unit with conversion to calibrated unit.

3.13 L.FL.CUTOFF

3.13 L.FL.CUTOFF3.13 L.FL.CUTOFF

3.13 L.FL.CUTOFF L.FL.CUTOFF stands for low flow cutoff.

To ensure a stable zero point of the current output, the current output can be set to a

stable value of "4.00mA" 3 in a selectable range.

3.13.1

CONTROL OFF LFC function is not active.

CONTROL ON L.FL.CUTOFF function is active.

3.13.2 LFC ON VAL Switch-on value 1:

Value range 1…19% (of full scale range)

The flow is greater than the switch-on value. The current output corresponds to this.

If the flow rate falls, the current output follows until the switch-on value 1.

If the flow value continues to fall, the current output is switched to "4.00mA" 3.

Note:

Note:Note:

Note:

The switch-on value to be set must be smaller than the previously selected switch-off

value.

3.13.3 OFF VALUE Switch-off value 2:

Value range 2…20% (of full scale range)

The flow rate is 0. The current output is "4.00mA" 3.

If the flow rate increases, the current output remains at "4.00mA" until it has reached the

switch-off value 2.

Note:

Note:Note:

Note:

The switch-off value to be set must be greater than the previously selected switch-on

value.

3.14 DESCRIPTOR

3.14 DESCRIPTOR3.14 DESCRIPTOR

3.14 DESCRIPTOR 12 digits

Free text input for header in LCD

3.15 ENTRY CODE

3.15 ENTRY CODE3.15 ENTRY CODE

3.15 ENTRY CODE Entry code for the local operating menu.

The entry code is not active by default.

3.15.1 OFF The use of an entry code is not activated.

3.15.2 ON If "YES" is selected, the last code that was entered has to be typed in.

Factory code: → → → ^ ^ ^ ↑ ↑ ↑

If, after confirmation with "YES", the → key is pressed additionally, then a new, individual,

nine digits code can be typed in.

The display shows the required key combination.

3.16 DEFAULT VAL.

3.16 DEFAULT VAL.3.16 DEFAULT VAL.

3.16 DEFAULT VAL. Resetting parameters to factory default.

There is always a safety prompt ("YES / NO"), to avoid accidental resetting.

Selection / Input Explanation

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7.1 Maintenance

Within the scope of routine maintenance of the system and pipelines, the flowmeter should also

be inspected for signs of fouling, corrosion, mechanical wear and leaks, as well as damage to

the measuring tube and the indicator.

We advise that inspections are carried out at least once per year.

The device must be removed from the pipeline before cleaning.

7.2 Replacement and retrofitting

Some components of the variable area flowmeter can be retrofitted:

•Float damping

Indicator M40:

Indicator M40:Indicator M40:

Indicator M40:

•Limit switch module K1 / K2

•Current output 4..20 mA ESK4 / ESK4A

•Counter module with LCD and I/O ESK4-T

•Fieldbus interface ESK4-PA / FF

7.2.1 Replacing floats

• Remove the device from the pipeline.

• Take the upper snap ring out of the measuring unit.

• Take the upper float stop and float out of the measuring unit.

• Insert the new float into the centre hole of the lower float stop and push into the measuring

unit along with the upper float stop. While doing this, the float's upper guide rod must be

guided through the middle hole of the float stop.

• Insert the snap ring into the measuring unit.

• Fit the device back into the pipeline.

CAUTION!

Pressurised pipes have to be depressurised before removing the device.

Empty the pipelines as completely as possible.

In the case of devices used for measuring aggressive or hazardous media, appropriate safety

precautions must be taken with regard to residual liquids in the measuring unit.

New gaskets have to be used when re-installing the device in the pipeline.

Avoid electrostatic charges when cleaning the surfaces (e.g. sight window)!

CAUTION!

Without a recalibration an additional measuring error is to be expected.

SERVICE

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7.2.2 Retrofitting float damping

• Take the upper snap ring 1 out of the measuring unit.

• Take the upper float stop 2 and float 5 out of the measuring unit.

• Fasten the retaining ring 3 into the lower slot of the float's guide rod.

• Slide ceramic sleeve 4 on to the float's guide rod and attach it to the top slot using the

retaining ring 3.

• Insert float into the lower float guide in the measuring unit.

• Retrofit the supplied damping cylinder with the integrated float stop 2 into the measuring

unit.

• Insert upper snap ring 1.

7.2.3 Retrofitting limit switch

• Remove ESK4 / ESK4A add-on module (if available).

• Merge contact pointer 2 in the middle.

• Loosen the locking screw 1 on the contact pointer.

• Insert the contact module into slot 3 of the bracket until the semi-circle 1 on the contact

board surrounds the pointer cylinder.

The contact module connecting terminals feature a pluggable design and can be removed in

order to connect the cables.

1 Snap ring

2 Float stop

3 Locking ring

4 Ceramic sleeve

5 Float

WARNING!

Do not damage the indicating element!

SERVICE

H250 M40

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7.2.4 Replacement - Retrofitting ESK4 / ESK4A

The ESK4 / ESK4A is factory calibrated, making it possible to replace it or retrofit it without

recalibrating.

• De-energise the ESK4 / ESK4A.

• Lift and remove the ESK4 / ESK4A with a screwdriver.

• The ESK4 / ESK4A plug-in tongues 1 are plugged in under the two bolts 2 on the base plate.

• Slight pressure is used to press the ESK4 / ESK4A onto the spring pins 3 until it stops, firmly

attaching the ESK4 / ESK4A.

If a change in measuring range, product temperature, product, density, viscosity or pressure is

desired, this can be done with the help of a variable area calculation program and with a HART

modem.

However, each measuring unit is subject to its own physical limits, which the variable area

calculation program correctly calculates, and may thus reject the desired change. If a change is

performed using the program, the new data is also transmitted to the ESK4 / ESK4A:

•Device identification

•Device address

•Serial number

•Measuring point identifier

•Digital measured value query in flow units, % and mA

•Test / setting functions

•Calibration 4.00 and 20.00 mA

•Set current output to any desired value

CAUTION!

When replacing or retrofitting an ESK4 / ESK4A, it is mandatory to indicate the serial number

(SN) or sales order (SO) when ordering.

This information can be found on the indicator nameplate.

WARNING!

Do not damage the indicating element!

SERVICE

H250 M40

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7.2.5 Replacement - Retrofitting add-on module ESK4-T / PA / FF

The add-on module for the ESK4 / ESK4A can be replaced or retrofitted on-site without removing

the device from the process control.

•ESK4-T (Display module with LCD and I/O)

•ESK4-PA (Profibus PA interface)

•ESK4-FF (Foundation Fieldbus interface)

More detailed information can be found in the service manual included with each retrofit or

replacement set.

7.3 Spare parts availability

The manufacturer adheres to the basic principle that functionally adequate spare parts for each

device or each important accessory part will be kept available for a period of 3 years after

delivery of the last production run for the device.

This regulation only applies to spare parts which are subject to wear and tear under normal

operating conditions.

7.3.1 List of spare parts

Spare part Order number

DN15

DN15DN15

DN15

Float CIV 15, 1.4404 X251041000

Float DIV 15, 1.4404 X251042000

Float TIV 15, 1.4404 X251043000

Float DIVT 15, 1.4404 X251044000

Float TIV 15, Aluminium X251043100

Float TIV 15, Titanium X251043200

Set float stop; standard (1 float stop, 1 span ring) X251050100

Set float stop; gas damping (ZrO

)X251050200

Set of float stop; gas damping (PEEK) X251050300

Damping bush (7x8) ZrO

incl. 2 retaining rings X251053100

Damping bush (7x8) PEEK incl. 2x retaining rings X251053200

DN25

DN25DN25

DN25

Float CIV 15, 1.4404 X252041000

Float DIV 25, 1.4404 X252042000

Float TIV 25, 1.4404 X252043000

Float DIVT 25, 1.4404 X252044000

Set float stop; standard (1 float stop, 1 span ring) X252050100

Set float stop; gas damping (ZrO

)X252050200

Set of float stop; gas damping (PEEK) X252050300

Damping bush (12x8) ZrO

incl. 2x retaining ring X252053100

Damping bush (12x8) PEEK incl. 2x retaining ring X252053200

SERVICE

H250 M40

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DN50

DN50DN50

DN50

Float CIV 55, 1.4404 X253041000

Float DIV 55, 1.4404 X253042000

Float TIV55, 1.4404 X253043000

Float DIVT 55, 1.4404 X253044000

Set float stop; standard (1 float stop, 1 span ring) X253050100

Set float stop; gas damping (ZrO

)X253050200

Set of float stop; gas damping (PEEK) X253050300

Damping bush (14x10) ZrO

incl. 2x retaining rings X253053100

Damping bush (14x10) PEEK incl. 2x retaining rings X253053200

DN80

DN80DN80

DN80

Float CIV 85, 1.4404 X254041000

Float DIV 85, 1.4404 X254042000

Float TIV 85, 1.4404 X254043000

Float DIVT 85, 1.4404 X254044000

Set float stop; standard (1 float stop, 1 span ring) X254050100

Set float stop; gas damping (ZrO

)X254050200

Set of float stop; gas damping (PEEK) X254050300

Damping bush (18x14) ZrO

incl. 2x retaining rings X254053100

Damping bush (18x14) PEEK incl. 2x retaining rings X254053200

DN100

DN100DN100

DN100

Float CIV 105, 1.4404 X255041000

Float DIV 105, 1.4404 X255042000

Float DIVT 105, 1.4404 X255044000

Set float stop; standard (1 float stop, 1 span ring) only for bottom! X255050100

Set float stop; gas damping (ZrO

)X255050200

Set of float stop; gas damping (PEEK) X255050300

Damping bush (18x14) ZrO

incl. 2x retaining rings X254053100

Damping bush (18x14) PEEK incl. 2x retaining rings X254053200

Indicator M40

Indicator M40Indicator M40

Indicator M40

Housing components

Housing componentsHousing components

Housing components

Standard indicator housing M40 complete, no scale * X251110000

Standard indicator housing M40R complete, no scale* (stainless steel, non-coated) X251111000

Standard indicator housing M40S complete, no scale * (2-layer coating) X251112000

Standard cover M40 X251110100

Standard cover M40S (2-layer coating) X251110200

Standard cover M40R (stainless steel, non-coated) X251110400

Cover seal X251112100

M40 standard base plate X251120100

M40S standard base plate (2-layer coating) * X251120200

M40R standard base plate (stainless steel, non-coated) * X251120300

Standard = not pressure-tight

Standard = not pressure-tightStandard = not pressure-tight

Standard = not pressure-tight

Spare part Order number

SERVICE

H250 M40

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Housing components indicator M40

Housing components indicator M40Housing components indicator M40

Housing components indicator M40

Retrofit kit HT extension X251021000

Module carrier (profile rail) X251121100

Set housing attachment parts X251121300

Pointer system, complete * X251122100

Magnetic brake for indicating element X251122200

* Accuracy loss without recalibration

NAMUR 2-wire limit module

NAMUR 2-wire limit moduleNAMUR 2-wire limit module

NAMUR 2-wire limit module

Contact module K1 min I7S23,5-N X251135100

Contact module K1 max I7S23,5-N X251135200

Contact module K2 min / max I7S23,5-N X251135300

Contact module K1 min SC3,5 N0 X251133100

Contact module K1 max SC3,5 N0 X251133200

Contact module K2 min / max SC3,5 N0 X251133300

Contact module K2 min / min min - SJ3,5 S1N / SJ 3,5 SN X251133400

Contact module K2 max / max max - SJ3,5 S1N / SJ 3,5 SN X251133500

Contact module K1 min SJ3,5 SN X251133600

Contact module K1 max SJ3,5 SN X251133700

Contact module K1 min / max SJ3,5 SN X251133800

3-wire limit module, normally closed

3-wire limit module, normally closed3-wire limit module, normally closed

3-wire limit module, normally closed

Contact module K1 min SB3,5 E2 - act.Low X251133900

Contact module K1 max SB3,5 E2 - act.Low X251134000

Contact module K1 min / max SB3,5 E2 - act.Low X251134100

3-wire limit module, normally open

3-wire limit module, normally open3-wire limit module, normally open

3-wire limit module, normally open

Contact module K1 min SB3,5 E2 - act.High X251134200

Contact module K1 max SB3,5 E2 - act.High X251134300

Contact module K1 min / max SB3,5 E2 - act.High X251134400

Electronic modules

Electronic modulesElectronic modules

Electronic modules

ESK4, ESK4-FF, ESK4-PA, ESK4-FF (serial number required)

Cover for add-on modules X251121500

Connection cable ESK4 to add-on modules X251121600

Plugs (10 pcs) for ESK4 connection for bus modules X251132500

Replacement connector

Replacement connectorReplacement connector

Replacement connector

Replacement connector 11/12 for ESK4 X251121700

Replacement connector D/D+ for ESK4-FF or ESK4-PA X251121800

Replacement connectors 1/2/3, 4/5/6, 7/8 for ESK4-T X251121900

Spare part Order number

SERVICE

H250 M40

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Replacement cable gland

Replacement cable glandReplacement cable gland

Replacement cable gland

Single cable gland M20x1.5 black, plastic - for non-Ex / Ex-i X251150300

Single cable gland M20x1.5 blue, plastic - for non-Ex / Ex-i X251150100

Single cable gland M20x1.5 brass - for non-Ex / Ex-i / Ex-nA X251151000

Single cable gland M20x1.5 brass Ex-d/t - for Ex-d / Ex-t X251152000

Single plug M20x1.5 brass Ex-d/t - for Ex-d / Ex-t X251153000

Single cable gland M20x1.5 stainless steel Ex-d/t - for Ex-d / Ex-t X251154000

Single plug M20x1.5 stainless steel Ex-d/t - for Ex-d / Ex-t X251155000

Spare part Order number

INFORMATION!

Other spare parts on request.

SERVICE

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7.4 Availability of services

The manufacturer offers a range of services to support the customer after expiration of the

warranty. These include repair, maintenance, technical support and training.

7.5 Returning the device to the manufacturer

7.5.1 General information

This device has been carefully manufactured and tested. If installed and operated in accordance

with these operating instructions, it will rarely present any problems.

INFORMATION!

For more precise information, please contact your local sales office.

CAUTION!

Should you nevertheless need to return a device for inspection or repair, please pay strict

attention to the following points:

•

Due to statutory regulations on environmental protection and safeguarding the health and

safety of the personnel, the manufacturer may only handle, test and repair returned devices

that have been in contact with products without risk to personnel and environment.

•

This means that the manufacturer can only service this device if it is accompanied by the

following certificate (see next section) confirming that the device is safe to handle.

CAUTION!

If the device has been operated with toxic, caustic, radioactive, flammable or water-endangering

products, you are kindly requested:

•

to check and ensure, if necessary by rinsing or neutralising, that all cavities are free from

such dangerous substances,

•

to enclose a certificate with the device confirming that is safe to handle and stating the

product used.

SERVICE

H250 M40

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7.5.2 Form (for copying) to accompany a returned device

7.6 Disposal

CAUTION!

To avoid any risk for our service personnel, this form has to be accessible from outside of the

packaging with the returned device.

Company: Address:

Department: Name:

Tel. no.: Fax no. and/or Email address:

Manufacturer's order no. or serial no.:

The device has been operated with the following medium:

This medium is: radioactive

water-hazardous

toxic

caustic

flammable

We checked that all cavities in the device are free from such substances.

We have flushed out and neutralized all cavities in the device.

We hereby confirm that there is no risk to persons or the environment through any residual media contained in the

device when it is returned.

Date: Signature:

Stamp:

CAUTION!

Disposal must be carried out in accordance with legislation applicable in your country.

Separate collection of WEEE (Waste Electrical and Electronic Equipment) in the European Union:

Separate collection of WEEE (Waste Electrical and Electronic Equipment) in the European Union:Separate collection of WEEE (Waste Electrical and Electronic Equipment) in the European Union:

Separate collection of WEEE (Waste Electrical and Electronic Equipment) in the European Union:

According to the directive 2012/19/EU, the monitoring and control instruments marked with the

WEEE symbol and reaching their end-of-life must not be disposed of with other waste

must not be disposed of with other wastemust not be disposed of with other waste

must not be disposed of with other waste.

The user must dispose of the WEEE to a designated collection point for the recycling of WEEE or

send them back to our local organisation or authorised representative.

TECHNICAL DATA

H250 M40

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8.1 Functional principle

The H250 flowmeter operates in accordance with the float measuring principle. The measuring

unit consists of a metal cone in which a float can move freely up and down. The flow goes from

bottom to top. The float changes position so that the lifting force acting on it F1 is in equilibrium

with the form drag F2 and its weight F3: F3 = F1 + F2

1 For the indicator, the flow-dependent height of the float in the measuring unit is transmitted

by means of a magnetic coupling and displayed on a scale.

2 For a built-in signal converter (ESK4 / ESK4A), the flow-dependent height of the float in the

measuring unit is detected by the S1 and S2 magnetic field sensors and electronically

processed.

The flowmeter operates in accordance with a modified float measuring principle.

The guided float adjusts itself so that the flow force acting on it is in equilibrium with the

opposing spring force. The flow-dependent position of the float in the measuring unit is

displayed on a scale by means of a magnetic coupling.

1 Indication principle M40 magnetic coupling

2 Magnetic coupling sensors

Operating principle of H250H and H250U

Figure 8-1: Operating principle H250H and H250U

1 H250H - horizontal flow direction

2 H250U - flow direction from top to bottom

TECHNICAL DATA

H250 M40

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8.2 Technical data

INFORMATION!

•

The following data is provided for general applications. If you require data that is more

relevant to your specific application, please contact us or your local sales office.

•

Additional information (certificates, special tools, software,...) and complete product

documentation can be downloaded free of charge from the website (Downloadcenter).

Measuring system

Application range Flow measurement of liquids, gases and vapours

Function / Measuring principle Variable area measuring principle

Measured value

Primary measured value Float position

Secondary measured value Operating and standard volume flow

Measuring accuracy

Directive VDI/VDE 3513, sheet 2 (q

= 50%)

H250 /RR /HC /F 1.6%

H250/C (Ceramic, PTFE)

H250H, H250U, H250 (100 : 1) 2.5%

Precision (repeatability)

Precision (repeatability)Precision (repeatability)

Precision (repeatability)

H250 /RR /HC /F 0.25%

H250H, H250U, H250 (100 : 1) 0.5%

Operating conditions

Temperature

TemperatureTemperature

Temperature

Max. operating temperature TS -196..+300°C / -321...+572°F

Depending on the version (refer to nameplate)

Pressure

PressurePressure

Pressure

Max. operating pressure PS Depending on the version (refer to nameplate)

Max. test pressure PT Depending on the version (refer to nameplate)

Min. required operating pressure 2 times greater than pressure loss (refer to measuring

ranges)

Protection category

Protection categoryProtection category

Protection category

M40, M40S, M40R IP66/68 acc. to EN 60529, NEMA 4/4X/6 acc. to NEMA 250

M40R IP69K acc. to DIN 40050-9

Float damping during gas measurement recommended:

Float damping during gas measurement recommended:Float damping during gas measurement recommended:

Float damping during gas measurement recommended:

DN15...25 / ½"...1" Operating pressure <0.3 barg / 4.4 psig

DN50...100 / 2"...4" Operating pressure <0.2 barg / 2.9 psig

Installation conditions acc. to VDI/VDE 3513, sheet 3

Inlet section ≥ 5 x DN

Outlet section ≥ 3 x DN

TECHNICAL DATA

H250 M40

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Materials

Other options on request:

•Special materials: e.g. SMO 254/6Mo/1.4547, Titan Grade 2, Hastelloy

C276/2.4819,

Monel

/2.4360, Inconel

/2.4856 a.o.

•Float damping: ceramic or PEEK

•Standard gasket for devices with female thread as insert: O-ring FPM / FKM, others optional

e.g. FFKM, EPDM

Temperatures

TemperaturesTemperatures

Temperatures

For devices to be used in hazardous areas, special temperature ranges apply. These can be

found in the Ex supplementary instructions.

Temperatures H250/M40 - mechanical indicator without auxiliary power

Device Flange Measuring tube Float Float guide Ring orifice

H250/RR Stainless steel CrNi 1.4404 / 316L

H250/HC Hastelloy

(2.4610) solid or

plated

Hastelloy

H250/F - Food CrNi steel 1.4435 CrNi-steel 1.4435 / 1.4404

H250/C -

Ceramic/PTFE 1

CrNi steel 1.4571 with TFM/PTFE 2 PTFE or Al

with

FFKM gasket

and

PTFE

1DN100/4" only PTFE

2TFM/PTFE liner (electrically non-conductive), conductive PTFE on request

M40 Aluminium, single-layer powder coating (polyester)

M40S Aluminium, two-layer powder coating (epoxy / polyester)

M40R Stainless steel without coating 1.4408 / CF8M

Offshore Wet coating on request

Material Product temperature Ambient temperature

Float Liner [°C] [°F] [°C] [°F]

H250/RR Stainless steel -196...+300 -321...+572 -40...+120 -40…+248

H250/RR screw fitting FPM/FKM -20...+200 -4...+392 -20…+120 -4…+248

H250/HC Hastelloy

-196...+300 -321...+572 -40...+120 -40…+248

H250/C PTFE -196...+70 -321...+158 -40...+70 -40…+158

H250/C Ceramic PTFE -196...+150 -321...+302 -40...+70 -40…+158

H250/C Ceramic TFM / Ceramic -196...+250 -321...+482 -40...+120 -40…+248

H250 H/U Spring material stainless steel 1.4301 -40...+100 -40…+212 -40…+120 -40…+248

Spring material Hastelloy

2.4610 -40...+200 -40...+392 -40…+120 -40…+248

TECHNICAL DATA

H250 M40

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Ambient temperatures Tamb with electrical components

Maximum product temperatures H250/M40 - with electrical components [°C]

Maximum product temperatures H250/M40 - with electrical components [°F]

1 if there are no heat insulation measures, a heat-resistant cable is necessary (continuous

operating temperature of the cable to be used: +100°C / 212°F)

Version [°C] [°F]

ESK4, ESK4A, ESK4-FF, ESK4-PA 1 -40...+70 -40...+158

Limit switches SJ3,5-SN / I7S23,5-N / Reed SPST -40...+70 -40...+158

Limit switches SC3,5-N0 / SJ3,5-S1N / SB3,5-E2 -25...+70 -13...+158

1Display contrast out of the temperature range 0...+60°C / +32...+140°F decreasing.

amb

< +40°C T

amb

< +60°C 1

EN ASME Version with Standard HT Standard HT

DN15,

DN25 ½", 1" ESK4 / ESK4A, -FF, -PA +200 +300 +180 +300

ESK4-T +200 +300 +140 +290

NAMUR limit switch +200 +300 +200 +300

3-wire limit switch +200 +300 +130 +295

DN50 2" ESK4 / ESK4A, -FF, -PA +200 +300 +165 +300

ESK4-T +200 +300 +140 +290

NAMUR limit switch +200 +300 +200 +300

3-wire limit switch +200 +300 +120 +195

DN80,

DN100 3", 4" ESK4 / ESK4A, -FF, -PA +200 +300 +150 +250

ESK4-T +200 +300 +130 +270

NAMUR limit switch +200 +300 +200 +300

3-wire limit switch +190 +300 +110 +160

amb

< +104 °F T

amb

< +140 °F 1

EN ASME Version with Standard HT Standard HT

DN15,

DN25 ½", 1" ESK4 / ESK4A, -FF, -PA 392 572 356 572

ESK4-T 392 572 284 554

NAMUR limit switch 392 572 392 572

3-wire limit switch 392 572 266 563

DN50 2" ESK4 / ESK4A, -FF, -PA 392 572 165 572

ESK4-T 392 572 284 554

NAMUR limit switch 392 572 392 572

3-wire limit switch 392 572 248 383

DN80,

DN100 3", 4" ESK4 / ESK4A, -FF, -PA 392 572 302 482

ESK4-T 392 572 266 518

NAMUR limit switch 392 572 392 572

3-wire limit switch 374 572 230 320

TECHNICAL DATA

H250 M40

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Abbreviation

Cable glands

Limit switches K1/K2

Current output ESK4 / ESK4A

HT High-temperature version

ESK4 / ESK4A 2-wire current output 4…20 mA with HART 5

/ HART 7

ESK4-T ESK4 with LCD, binary status outputs, digital counter and pulse output

ESK4-FF FOUNDATION FIELDBUS interface

ESK4-PA PROFIBUS PA interface

Material Cable diameter

[mm] [Inch]

M20x1.5 Standard PA 8...13 0.315...0.512

M20x1.5 Nickel-plated brass 10...14 0.394...0.552

M20x1.5 Stainless steel 10...14 0.394...0.552

Terminal connection 2.5 mm

Limit switches I7S23,5-N

SC3,5-N0 SJ3,5-SN 1 SJ3,5-S1N 1 SB3,5-E2 Reed

NAMUR (IEC 60947-5-6) Yes Yes Yes No No

Connection type 2-wire 2-wire 2-wire 3-wire 2-wire

Switching element

function NC NC NO PNP NO NC SPST

Nominal voltage U

8.2 VDC 8.2 VDC 8.2 VDC 10...30 VDC max. 32 VDC

Pointer vane not detected ≥ 3mA ≥ 3mA ≤ 1mA ≤ 0.3 VDC U

Pointer vane detected ≤ 1mA ≤ 1mA ≥ 3mA U

-3 VDC 0VDC

Continuous current - - - Max. 100 mA Max. 100 mA

No load current I

- - - ≤ 15 mA -

Switching cycles - - - - 100000

1safety oriented

2no inductances

Terminal connection 2.5 mm

Power supply 14...30 VDC (12...30 VDC without ESK4-T)

Min. power supply for HART

20 VDC at 250 Ω load

Measuring signal 4.00...20.00 mA = 0...100% flow value in 2-wire technology

Power supply influence <0.1%

External resistance dependency <0.1%

Temperature influence <5 µA/K

Max. external resistance / load 650 Ω at 30 VDC

Min. load for HART

250 Ω

TECHNICAL DATA

H250 M40

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ESK4-FF

For more details refer to the supplementary instructions "H250 M40 Foundation Fieldbus".

ESK4-PA

For more details refer to the supplementary instructions "H250 M40 Profibus PA".

ESK4 HART® configuration

Manufacturer name (code) KROHNE Messtechnik (0x45 = 69)

Model name / HART

revision ESK4 (214 = 0xD6) / HART 5.9

ESK4A (17854 = 0x45BE) / HART 7.4

Physical layer FSK

ESK4 / ESK4A process variable

Values [%] from full scale

range Signal output [mA]

Over range +102.5 (±1%) 20.24...20.56

Device error identification > 106.25 >21.00

Max. current consumption 131.25 25

Multidrop operation 4.5

Physical layer IEC 61158-2 and FISCO model

Communication standard H1 FOUNDATION Fieldbus protocol

ITK version 5.2

Power supply Bus supply

Nominal current 16 mA

Error current 23 mA

Boot-up current after 10 ms < Nominal current

Physical layer IEC 61158-2 and FISCO model

Communication standard Profibus PA profile 3.02

PNO ID 4531 HEX

Power supply Bus supply

Nominal current 16 mA

Error current 23 mA

Boot-up current after 10 ms < Nominal current

TECHNICAL DATA

H250 M40

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ESK4-T with LCD, binary inputs and outputs and digital counter

Binary output

Two binary outputs Galvanically isolated; passive

Mode Switching output NAMUR or transistor (OC)

Configurable as switch contact or pulse output NC / NO or max. 10 pulses/s

NAMUR switch output

Power supply 8.2 VDC

Signal current > 3 mA switching value not reached; < 1 mA switching value reached

Switching output transistor (Open Collector)

Power supply Nominal 24 VDC, maximal 30 VDC

max

500 mW

Continuous current Max. 100 mA

No load current I

≤ 2mA

Pulse output

Configurable from 50...500 ms

off

Depending on flow rate

Pulse weight Configurable in flow units e.g. 5 pulses/m

Binary input

Input Galvanically isolated

Mode Reset counters or Start / Stop

Configurable as active HI / active LO

H signal 16...30 VDC

Internal resistance R

Typ. 20 kΩ

(active) ≥ 500 ms

LC display

Technology Passive graphic LCD

Display Measurement with units and/or counter reading with units. Counter reading

max. 11-digit with power failure proof storage.

Binary flags for limit value status. 0...100% bargraph for measurement.

NE 107 diagnostic status symbols. Plain text menu for configuration.

Configuration Local plain text menu navigation via microswitch or bar magnet or using

DD/DTM software

TECHNICAL DATA

H250 M40

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Approvals

Standard Display Marking

ATEX / IECEx M40 mechanical II2GD IIC

II3GD IIC

M40 electrical II2G Ex ia IIC T6 Gb

II2G Ex d IIC T6 Gb

II3G Ex nA IIC T6 Gc

II2D Ex t IIIC T70°C Db

II2D Ex ia IIIC T85°C Db

FM (USA) NEC500

FM (Canada)

NEC505

M40 electrical IS Class I Div 1

XP Class I Div 1

NI Class I Div 2

DIP Class II / III Div 1

NEPSI M40 electrical Ex ia, Ex d, Ex nA, Ex t

CCOE/PESO M40 electrical Ex ia, Ex d

EAC/GOST M40 electrical Ex ia, Ex d

INMETRO M40 electrical Ex ia, Ex d, Ex nA, Ex t

KGS M40 electrical Ex ia, Ex d, Ex nA, Ex t

TECHNICAL DATA

H250 M40

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8.3 Dimensions and weights

Dimensions H250/M40

1 without cable gland; 2 Ex d, Ex t, Ex nA +10 mm / 0.39"

Front view Side view with heating High-temperature

a b d h

[mm] ["] [mm] ["] [mm] ["] [mm] ["]

H250/RR Flange

H250/F Clamp connection

141 5.56 250 9.85 150 5.91 150 5.91

H250/RR from 2" 600 lb

ISO 228 / ASME B1.20.1 / SMS

300 11.82

EN ASME c 1e 2Ø f g j

[mm] ["] [mm] ["] [mm] ["] [mm] ["] [mm] ["]

DN15 ½"94 3.70 114 4.49 20 0.80 97 3.82 197 7.76

DN25 1" 94 3.70 127 5.00 32 1.28 109 4.27 209 8.23

DN50 2" 107 4.22 141 5.55 65 2.57 125 4.90 222 8.74

DN80 3" 107 4.22 157 6.18 89 3.51 143 5.61 238 9.37

DN100 4" 107 4.22 167 6.57 114 4.50 150 5.91 248 9.76

ISO 228 / ASME B1.20.1

Female thread screwed

ISO 228 / ASME B1.20.1

Female thread welded

H250/F 1 Clamp

connection

H250/F screw connection

DIN 11851

1 Stainless steel 1.4435 - EHEDG tested - wetted surfaces Ra ≤ 0.8 / 0.6 µm

TECHNICAL DATA

H250 M40

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Weights

WeightsWeights

Weights

Process connections

Process connectionsProcess connections

Process connections

Higher pressure ratings and other connections on request

H250 Heating

Nominal size EN 1092-1 with flange connection with Ermeto connection

EN ASME [kg] [lb] [kg] [lb] [kg] [lb]

DN15 ½"3.5 7.7 5.6 12.6 3.9 8.6

DN25 1" 511 7.5 16.5 5.8 12.8

DN50 2" 8.2 18.1 11.2 24.7 9.5 21

DN80 3" 12.2 26.9 14.8 32.6 13.1 28.9

DN100 4" 14 30.9 17.4 38.4 15.7 34.6

H250/C [Ceramic / PTFE] Screw connection

Nominal size EN 1092-1 ASME 150 lb ASME 300 lb DIN 11864-1

EN ASME [kg] [lb] [kg] [lb] [kg] [lb] [kg] [lb]

DN15 ½“ 3.5 7.7 3.2 7.1 3.5 7.7 24.4

DN25 1“511 5.2 11.5 6.8 15 3.5 7.7

DN50 2“10 22.1 10 22.1 11 24.3 511

DN80 3“13 28.7 13 28.7 15 33.1 7.6 16.8

DN100 4“15 33.1 16 35.3 17 37.5 10.3 22.7

Standard Conn. dim. Pressure rating

Flanges (H250/RR /HC /C) EN 1092-1 DN15...150 PN16...250

ASME B16.5 ½...6" 150...2500 lb

JIS B2220 15…100 10...20K

Clamp connections (H250/RR /F) DIN 32676 DN15...100 10...16 bar

ISO 2852 Size 25...139.7 10...16 bar

Screw connections (H250/RR /HC /F) DIN 11851 DN15...100 25...40 bar

SMS 1146 1...4" 6barg/ 88.2psig

Female thread welded (H250/RR /HC) ISO 228 G½...G2" ≥ 50 barg / 735 psig

ASME B1.20.1 ½…2" NPT

Female thread (H250/RR /HC) with insert, FPM

gasket and union nut ISO 228 G½…2" ≤ 50 barg / 735 psig

ASME B1.20.1 ½…2" NPT

Thread connection aseptic (H250/F) DIN 11864-1 DN15…50 PN40

DN80…100 PN16

Flange aseptic (H250/F) DIN 11864-2 DN15…50 PN40

DN80…DN100 PN16

Measuring device (H250/RR /HC) with heating:

Measuring device (H250/RR /HC) with heating:Measuring device (H250/RR /HC) with heating:

Measuring device (H250/RR /HC) with heating:

Heating with flange connection EN 1092-1 DN15 PN40

ASME B16.5 ½"150 lb / RF

Heating pipe connection for Ermeto -E12 PN40

TECHNICAL DATA

H250 M40

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Bolts and tightening torques

For measuring devices with PTFE liner or ceramic liner and PTFE raised face, tighten the flange

threads with the following torques:

Nominal sizes EN

Nominal size ASME

Pressure tightness (vacuum) H250/C

Stud bolts Tightening torques

Nominal size acc. to EN 1092-1 Quantity x size [Nm] [lb-ft]

DN15 PN40 1 4x M12 9.8 7.1

DN25 PN40 1 4x M12 21 15

DN50 PN40 1 4x M16 57 41

DN80 PN16 1 8x M16 47 34

DN100 PN16 1 8x M16 67 48

1standard connections; other connections on request

Stud bolts Tightening torques

Nominal size acc. to ASME B16.5 Quantity x size [Nm] [lb-ft]

150 lb 300 lb

½" 150 lb / 300 lb 1 4x ½"4x ½"5.2 3.8

1" 150 lb / 300 lb 1 4x ½"4x 5/8" 10 7.2

2" 150 lb / 300 lb 1 4x 5/8" 8x 5/8" 41 30

3" 150 lb / 300 lb 1 4x 5/8" 8x ¾"70 51

4" 150 lb / 300 lb 1 8x 5/8" 8x ¾"50 36

1standard connections; other connections on request

Max. process temperature +70°C / +158°F+150°C / +302°F+250°C / +482°F

Min. operating pressure

Nominal size Float Liner [mbara] [psia] [mbara] [psia] [mbara] [psia]

DN15...100 PTFE PTFE 100 1.45 ----

DN15...80 Ceramic PTFE 100 1.45 250 3.63 - -

DN15...80 Ceramic TFM /

Ceramic 100 1.45 100 1.45 100 1.45

TECHNICAL DATA

H250 M40

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8.4 Measuring ranges

H250/RR - Stainless Steel, H250/HC - Hastelloy®

Reference condition for gas measurements:

Reference condition for gas measurements:Reference condition for gas measurements:

Reference condition for gas measurements:

Flow measurements for gases are attributed to

Nl/h or Nm

/h: Volume flow at standard (norm.) conditions 0°C - 1.013 bara (DIN 1343)

Measuring span: 10 : 1

Flow values: Values = 100% Water: +20°C/ +68°FAir: +20°C/ +68°F, 1.013 bara / 14.7 psia

Water Air Max. pressure loss

Float TIV CIV DIV TIV

Alu.

TIV DIV TIV

Alu.

TIV CIV DIV

Nominal

size

Cone [l/h] [Nm

/h] [mbar]

DN15, ½"K 15.1 18 25 -0.42 0.65 -12 21 26 -

K 15.2 30 40 -0.7 1 - 12 21 26 -

K 15.3 55 63 - 1 1.5 -12 21 26 -

K 15.4 80 100 -1.7 2.2 -12 21 26 -

K 15.5 120 160 -2.5 3.6 -12 21 26 -

K 15.6 200 250 -4.2 5.5 -12 21 26 -

K 15.7 350 400 700 6.7 10 18 1 12 21 28 38

K 15.8 500 630 1000 10 14 28 1 13 22 32 50

K 15.8 - - 1600 2 - - 50 2 - - - 85

DN25, 1" K 25.1 480 630 1000 9.5 14 -11 24 32 72

K 25.2 820 1000 1600 15 23 -11 24 33 74

K 25.3 1200 1600 2500 22 35 -11 25 34 75

K 25.4 1700 2500 4000 37 50 110 1 12 26 38 78

K 25.5 3200 4000 6300 62 95 180 1 13 30 45 103 3

DN50, 2" K 55.1 2700 6300 8400 58 80 230 1 813 74 60

K 55.2 3600 10000 14000 77 110 350 1 813 77 69

K 55.3 5100 16000 25000 110 150 700 1 913 84 104

DN80, 3" K 85.1 12000 25000 37000 245 350 1000 1 816 68 95

K 85.2 16000 40000 64000 280 400 1800 1 916 89 125

DN100, 4" K105.1 19000 63000 100 000 -550 2800 1 - - 120 220

1P >0.5 bar

2with TR float

3300 mbar with damping (gas measurement)

INFORMATION!

The operating pressure should be at least double the pressure loss for liquids and five times for

gases. The indicated pressure losses are valid for water and air at maximum flow rate. Other

flow ranges on request. Conversion of other media or operating data is performed using the

calculation method in accordance with VDI/VDE directive 3513.

TECHNICAL DATA

H250 M40

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H250/RR - stainless steel, H250/HC - Hastelloy®

Reference condition for gas measurements:

Reference condition for gas measurements:Reference condition for gas measurements:

Reference condition for gas measurements:

Flow measurements for gases are attributed to

SCFM or SCFH: Volume flow at standard (std.) conditions 15°C - 1.013 bara (ISO 13443)

Measuring span: 10 : 1

Flow values: Values = 100% Water: +20°C/ +68°FAir: +20°C/ +68°F, 1.013 bara / 14.7 psia

Water Air Max. pressure loss

Float TIV CIV DIV TIV

Alu.

TIV DIV TIV

Alu.

TIV CIV DIV

Nominal

size

Cone [GPH] [SCFM] [psig]

DN15, ½"K 15.1 4.76 6.60 -0.26 0.40 -0.18 0.31 0.38 -

K 15.2 7.93 10.6 -0.43 0.62 -0.18 0.31 0.38 -

K 15.3 14.5 16.6 -0.62 0.93 -0.18 0.31 0.38 -

K 15.4 21.1 26.4 -1.05 1.36 -0.18 0.31 0.38 -

K 15.5 31.7 42.3 -1.55 2.23 -0.18 0.31 0.38 -

K 15.6 52.8 66.0 -2.60 3.41 -0.18 0.31 0.38 -

K 15.7 92.5 106 185 4.15 6.20 11.2 1 0.18 0.31 0.41 0.56

K 15.8 132 166 264 6.20 8.68 17.4 1 0.19 0.32 0.47 0.74

K 15.8 - - 423 2 - - 31.0 2 ---1.25

DN25, 1" K 25.1 127 166 264 5.89 8.68 -0.16 0.35 0.47 1.06

K 25.2 217 264 423 9.30 14.3 -0.16 0.35 0.49 1.09

K 25.3 317 423 660 13.6 21.7 -0.16 0.37 0.50 1.10

K 25.4 449 660 1057 22.9 31.0 68.2 1 0.18 0.38 0.56 1.15

K 25.5 845 1057 1664 38.4 58.9 111 1 0.19 0.44 0.66 1.51 3

DN50, 2" K 55.1 713 1664 2219 36.0 49.6 143 1 0.12 0.19 1.09 0.88

K 55.2 951 2642 3698 47.7 68.2 217 1 0.12 0.19 1.13 1.01

K 55.3 1347 4227 6604 68.2 93.0 434 1 0.13 0.19 1.23 1.53

DN80, 3" K 85.1 3170 6604 9774 152 217 620 1 0.12 0.24 1.00 1.40

K 85.2 4227 10567 16907 174 248 1116 1 0.13 0.24 1.31 1.84

DN100, 4" K105.1 5019 16643 26418 -341 1736 1 -1.76 3.23

1P >7.4 psig

2with TR float

34.4 psig with damping (gas measurement)

INFORMATION!

The operating pressure should be at least double the pressure loss for liquids and five times for

gases. The indicated pressure losses are valid for water and air at maximum flow rate. Other

flow ranges on request. Conversion of other media or operating data is performed using the

calculation method in accordance with VDI/VDE directive 3513.

TECHNICAL DATA

H250 M40

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H250/C - Ceramic/PTFE

Reference condition for gas measurements:

Reference condition for gas measurements:Reference condition for gas measurements:

Reference condition for gas measurements:

Flow measurements for gases are attributed to

Nl/h or Nm

/h: Volume flow at standard (norm.) conditions 0°C - 1.013 bara (DIN 1343)

Measuring span: 10 : 1

Flow values: Values = 100% Water: +20°C/ +68°FAir: +20°C/ +68°F, 1.013 bara / 14.7 psia

Flow Max. pressure loss

Water Air Water Air

Liner / Float PTFE Ceramic PTFE Ceramic PTFE Ceramic PTFE Ceramic

Nominal

size

Cone [l/h] [Nm

/h] [mbar]

DN15, ½"E 17.2 25 30 0.7 -65 62 65 62

E 17.3 40 50 1.1 1.8 66 64 66 64

E 17.4 63 70 1.8 2.4 66 66 66 66

E 17.5 100 130 2.8 468 68 68 68

E 17.6 160 200 4.8 6.5 72 70 72 70

E 17.7 250 250 7 9 86 72 86 72

E 17.8 400 -10 -111 -111 -

DN25, 1" E 27.1 630 500 16 18 70 55 70 55

E 27.2 1000 700 30 22 80 60 80 60

E 27.3 1600 1100 45 30 108 70 108 70

E 27.4 2500 1600 70 50 158 82 158 82

E 27.5 4000 1 2500 120 75 290 100 194 100

DN50, 2" E 57.1 4000 4500 110 140 81 70 81 70

E 57.2 6300 6300 180 200 110 80 110 80

E 57.3 10000 11000 250 350 170 110 170 110

E 57.4 16000 1 ---284 - - -

DN80, 3" E 87.1 16000 16000 - - 81 70 - -

E 87.2 25000 25000 - - 95 85 - -

E 87.3 40000 1 ---243 - - -

DN100, 4" E 107.1 40000 ---100 - - -

E 107.2 60000 1 ---225 - - -

1special float

INFORMATION!

The operating pressure should be at least double the pressure loss for liquids and five times for

gases. The indicated pressure losses are valid for water and air at maximum flow rate. Other

flow ranges on request. Conversion of other media or operating data is performed using the

calculation method in accordance with VDI/VDE directive 3513.

TECHNICAL DATA

H250 M40

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H250/C - Ceramic/PTFE

Reference condition for gas measurements:

Reference condition for gas measurements:Reference condition for gas measurements:

Reference condition for gas measurements:

Flow measurements for gases are attributed to

SCFM or SCFH: Volume flow at standard (std.) conditions 15°C - 1.013 bara (ISO 13443)

Measuring span: 10 : 1

Flow values: Values = 100% Water: +20°C/ +68°FAir: +20°C/ +68°F, 1.013 bara / 14.7 psia

Flow Max. pressure loss

Water Air Water Air

Liner / Float PTFE Ceramic PTFE Ceramic PTFE Ceramic PTFE Ceramic

Nominal

size

Cone [GPH] [SCFM] [psig]

DN15, ½"E 17.2 6.60 7.93 0.43 -0.94 0.90 0.94 0.90

E 17.3 10.6 13.2 0.68 1.12 0.96 0.93 0.96 0.93

E 17.4 16.6 18.5 1.12 1.49 0.96 0.96 0.96 0.96

E 17.5 26.4 34.3 1.74 2.48 0.99 0.99 0.99 0.99

E 17.6 42.3 52.8 2.98 4.03 1.04 1.02 1.02 1.02

E 17.7 66.0 66.0 4.34 5.58 1.25 1.04 1.25 1.04

E 17.8 106 -6.2 -1.61 -1.61 -

DN25, 1" E 27.1 166 132 9.92 11.2 1.02 0.80 1.02 0.80

E 27.2 264 185 18.6 13.6 1.16 0.87 1.16 0.87

E 27.3 423 291 27.9 18.6 1.57 1.02 1.57 1.02

E 27.4 660 423 43.4 31.0 2.29 1.19 2.29 1.19

E 27.5 1056 1 660 74.4 46.5 4.21 1.45 2.81 1.45

DN50, 2" E 57.1 1057 1189 68.2 86.8 1.18 1.02 1.18 1.02

E 57.2 1664 1664 111.6 124 1.60 1.16 1.60 1.16

E 57.3 2642 2906 155 217 2.47 1.60 2.47 1.60

E 57.4 4226 1 ---4.12 - - -

DN80, 3" E 87.1 4227 4227 - - 1.18 1.02 - -

E 87.2 6604 6604 - - 1.38 1.23 -

E 87.3 10567 1 ---3.55 - -

DN100, 4" E 107.1 10567 ---1.45 - -

E 107.2 15850 1 ---3.29 - -

1special float

INFORMATION!

The operating pressure should be at least double the pressure loss for liquids and five times for

gases. The indicated pressure losses are valid for water and air at maximum flow rate. Other

flow ranges on request. Conversion of other media or operating data is performed using the

calculation method in accordance with VDI/VDE directive 3513.

TECHNICAL DATA

H250 M40

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H250H - Horizontal installation position

Reference condition for gas measurements:

Reference condition for gas measurements:Reference condition for gas measurements:

Reference condition for gas measurements:

Flow measurements for gases are attributed to

Nl/h or Nm

/h: Volume flow at standard (norm.) conditions 0°C - 1.013 bara (DIN 1343)

Measuring span: 10 : 1

Flow values: Values = 100% Water: +20°C/ +68°FAir: +20°C/ +68°F, 1.013 bara / 14.7 psia

EN ASME Cone Water [l/h] Air [Nm

/h] Pressure loss

[mbar]

DN15 ½K 15.1 70 1.8 195

K 15.2 120 3204

K 15.3 180 4.5 195

K 15.4 280 7.5 225

K 15.5 450 12 250

K 15.6 700 18 325

K 15.7 1200 30 590

K 15.8 1600 40 950

K 15.8 2400 60 1600

DN25 1" K 25.1 1300 35 122

K 25.2 2000 50 105

K 25.3 3000 80 116

K 25.4 5000 130 145

K 25.5 8500 220 217

K 25.5 10000 260 336

DN50 2" K 55.1 10000 260 240

K 55.2 16000 420 230

K 55.3 22000 580 220

K 55.3 34000 900 420

DN80 3" K 85.1 25000 650 130

K 85.2 35000 950 130

K 85.2 60000 1600 290

DN100 4" K 105.1 80000 2200 250

K 105.1 120000 3200 340

INFORMATION!

The operating pressure should be at least double the pressure loss for liquids and five times for

gases. The indicated pressure losses are valid for water and air at maximum flow rate. Other

flow ranges on request. Conversion of other media or operating data is performed using the

calculation method in accordance with VDI/VDE directive 3513.

TECHNICAL DATA

H250 M40

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H250H - Horizontal installation position

Reference condition for gas measurements:

Reference condition for gas measurements:Reference condition for gas measurements:

Reference condition for gas measurements:

Flow measurements for gases are attributed to

SCFM or SCFH: Volume flow at standard (std.) conditions 15°C - 1.013 bara (ISO 13443)

Measuring span: 10 : 1

Flow values: Values = 100% Water: +20°C/ +68°FAir: +20°C/ +68°F, 1.013 bara / 14.7 psia

EN ASME Cone Water [GPH] Air [SCFM] Pressure loss

[psig]

DN15 ½K 15.1 18.5 1.12 2.87

K 15.2 31.7 1.86 3.00

K 15.3 47.6 2.79 2.87

K 15.4 74.0 4.65 3.31

K 15.5 119 7.44 3.68

K 15.6 185 11.2 4.78

K 15.7 317 18.6 8.68

K 15.8 423 24.8 14.0

K 15.8 634 37.2 23.5

DN25 1" K 25.1 343 21.7 1.79

K 25.2 528 31.0 1.54

K 25.3 793 49.6 1.71

K 25.4 1321 80.6 2.13

K 25.5 2245 136 3.19

K 25.5 2642 161 4.94

DN50 2" K 55.1 2642 161 3.53

K 55.2 4227 260 3.38

K 55.3 5812 360 3.23

K 55.3 8982 558 6.17

DN80 3" K 85.1 6604 403 1.91

K 85.2 9246 589 1.91

K 85.2 15851 992 4.26

DN100 4" K 105.1 21134 1364 3.68

K 105.1 31701 1984 5.00

INFORMATION!

The operating pressure should be at least double the pressure loss for liquids and five times for

gases. The indicated pressure losses are valid for water and air at maximum flow rate. Other

flow ranges on request. Conversion of other media or operating data is performed using the

calculation method in accordance with VDI/VDE directive 3513.

TECHNICAL DATA

H250 M40

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H250U - Vertical installation position

Reference condition for gas measurements:

Reference condition for gas measurements:Reference condition for gas measurements:

Reference condition for gas measurements:

Flow measurements for gases are attributed to

Nl/h or Nm

/h: Volume flow at standard (norm.) conditions 0°C - 1.013 bara (DIN 1343)

Measuring span: 10 : 1

Flow values: Values = 100% Water: +20°C/ +68°FAir: +20°C/ +68°F, 1.013 bara / 14.7 psia

Flow direction Vertical downwards

EN ASME Cone Water [l/h] Air [Nm

/h] Pressure loss

[mbar]

DN15 ½"K 15.1 65 1.6 175

K 15.2 110 2.5 178

K 15.3 170 4180

K 15.4 260 6200

K 15.5 420 10 220

K 15.6 650 16 290

K 15.7 1100 28 520

K 15.8 1500 40 840

DN25 1" K 25.1 1150 30 97

K 25.2 1800 45 85

K 25.3 2700 70 92

K 25.4 4500 120 115

K 25.5 7600 200 172

DN50 2" K 55.1 9000 240 220

K 55.2 15000 400 230

K 55.3 21000 550 240

INFORMATION!

The operating pressure should be at least double the pressure loss for liquids and five times for

gases. The indicated pressure losses are valid for water and air at maximum flow rate. Other

flow ranges on request. Conversion of other media or operating data is performed using the

calculation method in accordance with VDI/VDE directive 3513.

TECHNICAL DATA

H250 M40

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H250U - Vertical installation position

Reference condition for gas measurements:

Reference condition for gas measurements:Reference condition for gas measurements:

Reference condition for gas measurements:

Flow measurements for gases are attributed to

SCFM or SCFH: Volume flow at standard (std.) conditions 15°C - 1.013 bara (ISO 13443)

Measuring span: 10 : 1

Flow values: Values = 100% Water: +20°C/ +68°FAir: +20°C/ +68°F, 1.013 bara / 14.7 psia

Flow direction Vertical downwards

EN ASME Cone Water [GPH] Air [SCFM] Pressure loss

[psig]

DN15 ½"K 15.1 17.2 0.99 2.57

K 15.2 29.1 1.55 2.62

K 15.3 44.9 2.48 2.65

K 15.4 68.7 3.72 2.94

K 15.5 111 6.20 3.23

K 15.6 172 9.92 4.26

K 15.7 291 17.4 7.64

K 15.8 396 24.8 12.3

DN25 1" K 25.1 304 18.6 1.42

K 25.2 476 27.9 1.25

K 25.3 713 43.4 1.35

K 25.4 1189 74.4 1.69

K 25.5 2008 124 2.53

DN50 2" K 55.1 2378 149 3.23

K 55.2 3963 248 3.38

K 55.3 5548 341 3.53

INFORMATION!

The operating pressure should be at least double the pressure loss for liquids and five times for

gases. The indicated pressure losses are valid for water and air at maximum flow rate. Other

flow ranges on request. Conversion of other media or operating data is performed using the

calculation method in accordance with VDI/VDE directive 3513.

KROHNE – Process instrumentation and measurement solutions

•

Flow

•

Level

•

Temperature

•

Pressure

•

Process Analysis

•

Services

Head Office KROHNE Messtechnik GmbH

Ludwig-Krohne-Str. 5

47058 Duisburg (Germany)

Tel.: +49 203 301 0

Fax: +49 203 301 10389

info@krohne.com

The current list of all KROHNE contacts and addresses can be found at:

www.krohne.com

MA_H250_M40_en_4000640704_R04 Y5 1 Krohne H250 M40 Manual

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