KROHNE BW 25 Operating Manual

BW25

BW25BW25

Level meter

Handbook

HandbookHandbook

: IMPRINT ::::::::::::::::::::::::::::::::::

Subject to change without notice.

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CONTENTS

1 Safety instructions 5

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

1.2 Certifications .................................................................................................................... 5

1.3 Safety instructions from the manufacturer ..................................................................... 6

1.3.1 Copyright and data protection ................................................................................................ 6

1.3.2 Disclaimer ............................................................................................................................... 6

1.3.3 Product liability and warranty ................................................................................................ 7

1.3.4 Information concerning the documentation........................................................................... 7

1.3.5 Warnings and symbols used................................................................................................... 8

1.4 Safety instructions for the operator................................................................................. 8

2 Device description 9

2.1 Scope of delivery............................................................................................................... 9

2.2 Device version................................................................................................................. 10

2.3 Nameplate ...................................................................................................................... 11

2.4 Description code............................................................................................................. 12

3 Installation 13

3.1 Notes on installation ......................................................................................................13

3.2 Storage ........................................................................................................................... 13

3.3 Installation condititions ..................................................................................................13

3.4 Installation...................................................................................................................... 14

4 Electrical connections 15

4.1 Safety instructions.......................................................................................................... 15

4.2 Electrical connection indicator M9................................................................................. 16

4.2.1 Limit switch........................................................................................................................... 16

4.2.2 Electrical signal output ESK ................................................................................................. 19

4.3 Electrical connection indicator M10............................................................................... 21

4.3.1 Electrical connection and functions ..................................................................................... 21

4.3.2 M10 Power supply - current output...................................................................................... 21

4.3.3 M10 switching outputs B1 and B2 ........................................................................................ 24

4.4 Grounding ....................................................................................................................... 26

4.5 Protection category ........................................................................................................26

5 Start-up 27

5.1 Start-up........................................................................................................................... 27

5.2 Indicator M10 .................................................................................................................. 27

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CONTENTS

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6 Operation 28

6.1 Operating elements........................................................................................................ 28

6.2 Basic principles of operation.......................................................................................... 29

6.2.1 Functional description of the buttons................................................................................... 29

6.2.2 Navigation within the menu structure.................................................................................. 29

6.2.3 Changing the settings in the menu....................................................................................... 30

6.2.4 Measures in the event of faulty indications.......................................................................... 30

6.3 Overview of the most important functions and indicators............................................. 31

6.4 Error messages.............................................................................................................. 32

6.5 Menu indicator M10 ........................................................................................................ 34

6.5.1 Factory Settings .................................................................................................................... 34

6.5.2 Menu structure ..................................................................................................................... 35

6.5.3 Menu explanations................................................................................................................ 36

7 Service 39

7.1 Maintenance ................................................................................................................... 39

7.2 Spare parts availability...................................................................................................39

7.3 Availability of services .................................................................................................... 39

7.4 Returning the device to the manufacturer..................................................................... 39

7.4.1 General information.............................................................................................................. 39

7.4.2 Form (for copying) to accompany a returned device............................................................ 41

7.5 Disposal .......................................................................................................................... 41

8 Technical data 42

8.1 Operating principle......................................................................................................... 42

8.2 Technical data................................................................................................................. 43

8.3 Dimensions ..................................................................................................................... 48

9 Notes 50

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1.1 Intended use

The level meter is suitable for measuring liquids and separation layers in liquids. The devices are especially well suited for the measurement of:

• Liquids

• Water

• Chemicals with low corrosiveness

DANGER!

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

WARNING!

Responsibility for the use of the measurement devices with regard to suitability, intended use and corrosion resistance of the used materials against the measured fluid lies solely with the operator. The manufacturer is not liable for any damage resulting from improper use or use for other than the intended purpose. Do not use any abrasive or highly viscous media.

SAFETY INSTRUCTIONS 1

1.2 Certifications

CE marking

The device fulfils the statutory requirements of the following EC directives:

• Pressure Equipment Directive 97/23/EC Article 3.3

• EC directive 94/9 EC - ATEX directive

• EMC Directive 89/336/EC

as well as

• EN 61010

• EMC specification acc. to EN 61326/A1

• NAMUR recommendations NE 21 and NE 43

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

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1 SAFETY INSTRUCTIONS

1.3 Safety instructions from the manufacturer

1.3.1 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.

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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.

1.3.2 Disclaimer

The manufacturer will not be liable for any damage of any kind by using its product, including, but not limited to direct, indirect, incidental, punitive 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.

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1.3.3 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 and 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.

1.3.4 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 underneath icons.

SAFETY INSTRUCTIONS 1

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1 SAFETY INSTRUCTIONS

1.3.5 Warnings and symbols used

Safety warnings are indicated by the following symbols.

DANGER!

This information 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.

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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.

• HANDLING

HANDLING

HANDLINGHANDLING

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

i RESULT

RESULT

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

1.4 Safety instructions for the operator

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.

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2.1 Scope of delivery

INFORMATION!

Inspect the cartons carefully for damage or signs of rough handling. Report damage to the carrier and to the local office of the manufacturer.

INFORMATION!

Check the packing list to check if you received completely all that you ordered.

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.

DEVICE DESCRIPTION 2

1 Measuring device in ordered version 2 For indicator M10 - bar magnet 3 For indicator M10 - key 4 Handbook 5 Certificates, calibration report (supplied to order only)

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2 DEVICE DESCRIPTION

2.2 Device version

1 BW25 with indicator M9 2 BW25 with indicator M10

1 BW25/M9

• Local indicator without auxiliary power

• Max. 2 limit switches, type NAMUR, NAMUR safety-oriented

• 2-wire current output 4…20 mA, HART

communication

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2 BW25/M10

• Ex d flameproof enclosure

• 2 digital adjustable limit switches, 2-wire open collector or type NAMUR

• 2-wire current output 4…20 mA, HART

communication

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2.3 Nameplate

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.

DEVICE DESCRIPTION 2

Figure 2-1: Nameplates on the indicator

1 Device type 2 Manufacturer 3 Notified ATEX body 4 Sizing data: temperature & pressure rating 5 PED data 6 Ex data 7 Electrical connection data 8 Note manual 9 KROHNE website

Additional markings on the indicator

• SO - sales order / item

• PA - order

• Vx - product configurator code

• AC - article code

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2 DEVICE DESCRIPTION

2.4 Description code

The description code* consists of the following elements:

1 Materials / versions RR - Stainless Steel Ti - rust-proof steel (device flange), titanium (displacement rod)

2 Version with bypass chamber B - with bypass chamber

3 Series of indicators M9 - Indicator M9 standard indicator M9S - Indicator with knock-resistant sight glass M9R - Indicator in Stainless Steel housing M9T - Stainless steel indicator with knock-resistant sight glass M10 - Indicator or signal converter M10

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4 High temperature version HT - Version with HT extension

5 Electrical signal output ESK - Electronic transmitter

6 Limit switch K1 - One limit switch K2 - Two limit switches

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

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3.1 Notes on installation

INFORMATION!

Inspect the cartons carefully for damage or signs of rough handling. Report damage to the carrier and to the local office of the manufacturer.

INFORMATION!

Check the packing list to check if you received completely all that you ordered.

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.

3.2 Storage

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

• Avoid lasting direct exposure to the sun.

• Store the device in its original packing.

• The permissible storage temperature for standard devices is -40...+80°C / -40...+176°F.

INSTALLATION 3

3.3 Installation condititions

CAUTION!

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

•

Before installation, compare the serial number of the display (nameplate) with the serial number on the displacement rod, the flange and the magnet.

•

In the case of level displays with a bypass chamber, the BW25 serial number on the bypass chamber should be compared with the serial number on the display.

•

Avoid combining parts with differing serial numbers.

•

Ensure the material compatibility of the parts in contact with the product.

•

Screws, bolts and gaskets are to be provided by the customer and must be selected in accordance with the pressure rating of the mounting flange or the operating pressure.

•

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

•

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

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3 INSTALLATION

3.4 Installation

The sealing surface of the tank flange must be horizontal to ensure the perfect function of the level measurement unit.

1 Lock ring 2 Quick-action lock 3 Retaining screw 4 Cover stop

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• Insert the spring suspension pin in the flange system and secure it with a retaining ring 1.

• Install the retaining ring 1 properly and check for a correct seat all round.

• Place the seal on the tank flange.

• Suspend the displacer body on the spring suspension pin.

• Tighten the locking elements of the quick-action lock 2 (standard) or, with the variant, 3 and

4 and check for a tight fit.

• Insert the displacer element and the spring suspension pin into the tank through the tank flange or into the preinstalled bypass chamber.

• Tighten the flange connection.

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4.1 Safety instructions

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.

ELECTRICAL CONNECTIONS 4

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.

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4 ELECTRICAL CONNECTIONS

4.2 Electrical connection indicator M9

4.2.1 Limit switch

Indicator M9 can be equipped with a maximum of two electronic limit switches. The limit switch functions with a slot sensor which is operated inductively through the semicircular metal vane belonging to the measuring pointer. The switching points are set through the contact pointers. The position of the contact pointer is indicated on the scale.

Limit switch module

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1 Min. contact 2 Max. contact 3 Locking screw 4 Maximum pointer 5 Connection terminal

The connecting terminals have a pluggable design and can be removed in order to connect the lines. The built-in contact types are shown on the nameplate of the indicator.

Electrical connection of the limit switches

Contact MIN MAX

Terminal no. 1 2 3 4 5 6

Connection 2-wire NAMUR - + - +

Connection 3-wire + - + -

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