KROHNE DK46, DK47, DK48, DK800 User Manual

DK46 - DK800

DK46 - DK800DK46 - DK800

Variable area flowmeter

Handbook

HandbookHandbook

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

Subject to change without notice.

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DK46 - DK800

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 supply................................................................................................................. 9

2.2 Device versions............................................................................................................... 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 conditions ....................................................................................................14

3.3.1 Installation in the piping ....................................................................................................... 14

3.3.2 Panel mounting..................................................................................................................... 14

4 Electrical connections 15

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

4.2 Limit switch .................................................................................................................... 16

4.3 Limit switch settings ......................................................................................................17

4.4 Minimum clearance between two limit switches .......................................................... 18

4.5 Switching performance .................................................................................................. 18

4.6 Limit switch function reversal........................................................................................ 19

4.7 Grounding connection .................................................................................................... 20

4.8 Protection category ........................................................................................................20

5 Start-up 21

5.1 Start-up........................................................................................................................... 21

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CONTENTS

DK46 - DK800

6 Service 22

6.1 Maintenance ................................................................................................................... 22

6.2 Changing the measuring cone ....................................................................................... 23

6.3 Spare parts availability...................................................................................................24

6.4 Availability of services .................................................................................................... 24

6.5 Returning the device to the manufacturer..................................................................... 24

6.5.1 General information.............................................................................................................. 24

6.5.2 Form (for copying) to accompany a returned device............................................................ 25

6.6 Disposal .......................................................................................................................... 25

7 Technical data 26

7.1 Operating principle......................................................................................................... 26

7.2 Technical data................................................................................................................. 27

7.3 Dimensions and weights ................................................................................................ 30

7.4 Measuring ranges...........................................................................................................32

7.5 Differential pressure regulators .................................................................................... 35

8 Notes 39

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DK46 - DK800

1.1 Intended use

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

These flowmeters are particularly suitable for measuring:

• Liquids

• Hydrocarbons

• Water

• Chemicals with low corrosiveness

• Industrial gases

DANGER!

In case of instruments which are used in explosive endangered areas please consider the supplementary installation and operating instructions mentioned in the Ex-manual.

WARNING!

The operator shall bear sole responsibility for the use of the flowmeters with regard to suitability, intended use and corrosion resistance of the materials used to the process product. The manufacturer shall not be liable for any damage resulting from improper use or use for other than the intended purpose. Do not use any abrasive or highly viscous process products.

SAFETY INSTRUCTIONS 1

1.2 Certifications

CE marking

The flowmeter meets the statutory requirements of the following EC directives:

• Pressure Equipment Directive 97/23/EC - article 3.3

• EMC Directive 2004/108/EC for instruments with electrical options

• ATEX Directive 94/9/EC for instruments in Ex-areas

The manufacturer certifies successful testing of the product by providing the CE Declaration of Conformity.

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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.

DK46 - DK800

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 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.

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DK46 - DK800

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.

DK46 - DK800

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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DK46 - DK800

2.1 Scope of supply

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

Figure 2-1: Scope of delivery

1 Flowmeter in the ordered version 2 Manual 3 Certificates, calibration certificate (supplied to order only)

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2 DEVICE DESCRIPTION

2.2 Device versions

DK46 - DK800

Figure 2-2: Device versions

1 DK46 with valve and an overall length of 111 mm 2 DK47 with valve and an overall length of 196 mm 3 DK48 with valve and an overall length of 346 mm 4 DK800 with valve and an overall length of 146 mm

Figure 2-3: DK47 with differential pressure regulators

1 DK47 with inlet pressure regulator 2 DK47 with outlet pressure regulator

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DK46 - DK800

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 2-4: Nameplates (Examples)

1 Type of meter 2 Manufacturer 3 Appointed ATEX body 4 Design data: temperature & pressure rating 5 DGRL data 6 Ex data 7 Electrical connection data 8 KROHNE website

Additional markings on the measuring device

• SN - serial number

• SO - sales order / item

• Tag-No - Measuring point identifier

• MD - manufacturing date

• PA - KROHNE 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 R - with integrated inlet pressure regulator (DKR46 only)

2 Device type:

46 - Overall length of measuring cone 65 mm 47 - Overall length of measuring cone 150 mm 48 - Overall length of measuring cone 300 mm 800 - Overall length of measuring cone 100 mm

3 Material for top and bottom fittings

N - brass R - stainless steel PV - PVDF

DK46 - DK800

4 Differential pressure regulators

RE - inlet pressure regulator RA - outlet pressure regulator

5 K1 - one limit switch / K2 - two limit switches

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

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