KROHNE BW25 Handbook
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KROHNE BW25 Handbook

Level meter
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© KROHNE 01/2015 - 4000432304 - MA BW25 R07 en

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Summary of Contents for KROHNE BW25

  • Page 1 BW25 BW25 BW25 BW25 Handbook Handbook Handbook Handbook Level meter © KROHNE 01/2015 - 4000432304 - MA BW25 R07 en...
  • Page 2 All rights reserved. It is prohibited to reproduce this documentation, or any part thereof, without the prior written authorisation of KROHNE Messtechnik GmbH. Subject to change without notice. Copyright 2014 by KROHNE Messtechnik GmbH - Ludwig-Krohne-Str. 5 - 47058 Duisburg (Germany) www.krohne.com 01/2015 - 4000432304 - MA BW25 R07 en...

  • Page 3: Table Of Contents

    4.4.2 Current output ESK4/ESK4A ....................31 4.4.3 Switching output ESK4-T ...................... 34 4.5 Grounding ........................37 4.6 Protection category ......................37 5 Start-up 5.1 Start-up........................... 38 5.2 Indicator M10 - Indicator M40 ESK4-T................38 01/2015 - 4000432304 - MA BW25 R07 en www.krohne.com...
  • Page 4 7.5.2 Form (for copying) to accompany a returned device............59 7.6 Disposal .......................... 59 8 Technical data 8.1 Operating principle......................60 8.2 Technical data......................... 61 8.3 Dimensions ........................66 9 Notes www.krohne.com 01/2015 - 4000432304 - MA BW25 R07 en...

  • Page 5: Safety Instructions

    • 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. 01/2015 - 4000432304 - MA BW25 R07 en www.krohne.com...

  • Page 6: Safety Instructions From The Manufacturer

    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. www.krohne.com 01/2015 - 4000432304 - MA BW25 R07 en...

  • Page 7: Product Liability And Warranty

    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. 01/2015 - 4000432304 - MA BW25 R07 en www.krohne.com...

  • Page 8: Warnings And Symbols Used

    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. www.krohne.com 01/2015 - 4000432304 - MA BW25 R07 en...

  • Page 9: Device Description

    1 Measuring device in ordered version 2 For indicator M10 and M40/ESK4-T - bar magnet 3 For indicator M10 and M40 - key 4 Handbook 5 Certificates, calibration report (supplied to order only) 01/2015 - 4000432304 - MA BW25 R07 en www.krohne.com...

  • Page 10: Device Version

    ® • 2-wire current output 4…20 mA, HART communication • Profibus PA or Foundation Fieldbus • LC display and digital outputs • Intrinsically safe (Ex i) or explosion-proof enclosure (Ex d) www.krohne.com 01/2015 - 4000432304 - MA BW25 R07 en...

  • Page 11: Indicator Versions

    7 Earth terminal external Versions K1 / K2 and ESK4/4A 1 Indicator with K2 contact module 2 Indicator with ESK4/4A current output 4...20 mA Both versions can be combined with one another. 01/2015 - 4000432304 - MA BW25 R07 en www.krohne.com...
  • Page 12 5 Operating keys ^ ↑ 6 Connection binary input/outputs 7 Connection cable between modules Version Fieldbus ESK4-FF / ESK4-PA 1 Basic module with electronic magnet sensors 2 Connection bus module 3 hardware settings www.krohne.com 01/2015 - 4000432304 - MA BW25 R07 en...

  • Page 13: Nameplate

    8 Note manual 9 KROHNE website Additional markings on the indicator • SO - sales order / item • PA - order • Vx - product configurator code • AC - article code 01/2015 - 4000432304 - MA BW25 R07 en www.krohne.com...

  • Page 14: Description Code

    - Foundation Fieldbus (ESK4-FF) or - Profibus PA (ESK4-PA) 6 Limit switch K1 - One limit switch K2 - Two limit switches * positions which are not needed are omitted (no blank positions) www.krohne.com 01/2015 - 4000432304 - MA BW25 R07 en...

  • Page 15: Installation

    • 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.

  • Page 16: Installation

    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. www.krohne.com 01/2015 - 4000432304 - MA BW25 R07 en...

  • Page 17: Electrical Connections

    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. 01/2015 - 4000432304 - MA BW25 R07 en www.krohne.com...

  • Page 18: Electrical Connection Indicator M9

    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 Terminal no. Connection 2-wire NAMUR Connection 3-wire Connection Reed SPST www.krohne.com 01/2015 - 4000432304 - MA BW25 R07 en...
  • Page 19 • Slide the scale back to the latching point • Set contact pointers 1 and 2 to the desired switching point After setting has been carried out: Fix the contact pointers with the locking screw 3. 01/2015 - 4000432304 - MA BW25 R07 en www.krohne.com...
  • Page 20 Current consumption in the position shown: Contact Type current ≤ 1 mA MIN 1 NAMUR ≤ 1 mA MIN 2 NAMUR ≥ 3 mA MAX 1 NAMUR ≥ 3 mA MAX 2 NAMUR www.krohne.com 01/2015 - 4000432304 - MA BW25 R07 en...

  • Page 21: Electrical Signal Output Esk2A

    (4...20 mA). Exception: multidrop operation. In multidrop operation ® a maximum of 15 devices with HART function can be operated in parallel, whereby their analog outputs are switched inactive. (I approx. 4 mA per device). 01/2015 - 4000432304 - MA BW25 R07 en www.krohne.com...
  • Page 22 DTM (Device Type Manager) are available for configuration (go to download centre at www.krohne.com). ® With the integrated HART communication, the current level can be transmitted. Two limit values can be monitored. www.krohne.com 01/2015 - 4000432304 - MA BW25 R07 en...

  • Page 23: Electrical Connection Indicator M10

    4.3.2 M10 Power supply - current output The electrical connection is reverse-polarity protected. M10 - terminal connection I 1 Terminal connection 2 Power supply 16...32VDC 3 Measurement signal 4...20 mA ® 4 External load, HART communication 01/2015 - 4000432304 - MA BW25 R07 en www.krohne.com...
  • Page 24 The required supply voltage can be calculated using the formula below: 22 mA + 16 V ext. where = the minimum supply voltage and ext. = the total measuring loop resistance. www.krohne.com 01/2015 - 4000432304 - MA BW25 R07 en...
  • Page 25 Description) as well as a DTM (Device Type Manager) are available for configuration (go to download centre at www.krohne.com). ® The current level can be transmitted using the integral HART communications. Two limit values can be monitored. 01/2015 - 4000432304 - MA BW25 R07 en www.krohne.com...

  • Page 26: M10 Switching Outputs B1 And B2

    3 Transistor OC terminal connection 4 Power supply 5 Load Value range NAMUR Normally closed Normally open ≤1 mA Switching value reached > 3mA ≤1 mA Switching value not reached > 3mA www.krohne.com 01/2015 - 4000432304 - MA BW25 R07 en...
  • Page 27 3 Power supply U ext. Power loss of B1 and B2 1 Load impedance R 100 Ohm 2 Load impedance R 1000 Ohm 3 Power loss U 4 Power supply U ext. 01/2015 - 4000432304 - MA BW25 R07 en www.krohne.com...

  • Page 28: Electrical Connection Indicator M40

    The connecting terminals have a pluggable design and can be removed in order to connect the cables. The built-in limit switch types are shown on the indicator. Electrical connection of the limit switches Contact Terminal no. Connection 2-wire NAMUR Connection 3-wire Connection Reed SPST www.krohne.com 01/2015 - 4000432304 - MA BW25 R07 en...
  • Page 29 • Slide the scale back to the latching point • Set contact pointers 1 and 2 to the desired switching point After setting has been carried out: Fix the contact pointers with the locking screw 3. 01/2015 - 4000432304 - MA BW25 R07 en www.krohne.com...
  • Page 30 Current consumption in the position shown: Contact Type current ≤ 1 mA MIN 1 NAMUR ≤ 1 mA MIN 2 NAMUR ≥ 3 mA MAX 1 NAMUR ≥ 3 mA MAX 2 NAMUR www.krohne.com 01/2015 - 4000432304 - MA BW25 R07 en...

  • Page 31: Current Output Esk4/Esk4A

    (PELV) with electrical isolation is recommended. 1 Terminal connection 2 Converter supply isolator with electrical isolation 3 Power supply (see supply isolator information) 4 Measuring signal 4...20 mA ® 5 External load, HART communication 01/2015 - 4000432304 - MA BW25 R07 en www.krohne.com...
  • Page 32 Exception for multidrop mode. In multidrop mode, a maximum of 15 devices with HART function can be operated in parallel, whereby their current outputs are switched inactive (I approx. 4.5 mA per device). www.krohne.com 01/2015 - 4000432304 - MA BW25 R07 en...
  • Page 33 • Signal detection of the measuring range of the internal sensors • Temperature compensation of the internal sensors • Calibration corresponding the application • Plausibility of physical unit, system and selected unit 01/2015 - 4000432304 - MA BW25 R07 en www.krohne.com...

  • Page 34: Switching Output Esk4-T

    Switching outputs B1 and B2 can be electrically connected in two ways: • NAMUR - (R approx. 1kOhm) • OC - (open collector) low-resistance switching output Contact Terminal no. Connection 2-wire NAMUR Connection 2-wire OC www.krohne.com 01/2015 - 4000432304 - MA BW25 R07 en...
  • Page 35 3 OC output terminal connection 4 Power supply U ext. 5 Load R Value range NAMUR Normally closed Normally open ≤1 mA Switching value reached > 3mA ≤1 mA Switching value not reached > 3mA 01/2015 - 4000432304 - MA BW25 R07 en www.krohne.com...
  • Page 36 3 Power supply U ext. Power loss of B1 and B2 1 Load impedance R 100 Ohm 2 Load impedance R 1000 Ohm 3 Power loss U 4 Power supply U ext. www.krohne.com 01/2015 - 4000432304 - MA BW25 R07 en...

  • Page 37: Grounding

    • 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. 01/2015 - 4000432304 - MA BW25 R07 en www.krohne.com...

  • Page 38: Start-Up

    Operation INFORMATION! The device is low-maintenance Comply with the application limits with regard to temperature of the medium and ambient temperature. www.krohne.com 01/2015 - 4000432304 - MA BW25 R07 en...

  • Page 39: Operation

    • Exit loop check mode by holding down the microswitch (longer than 6 seconds). The current output jumps back to measuring mode 2. INFORMATION! If the microswitch has not been pressed for longer than 60 seconds, the ESK4 automatically reverts to measuring mode 2. 01/2015 - 4000432304 - MA BW25 R07 en www.krohne.com...

  • Page 40: Operating Elements Indicator M10 And M40

    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: Operation keys Button Symbol → right ↑ Enter www.krohne.com 01/2015 - 4000432304 - MA BW25 R07 en...

  • Page 41: Basic Principles Of Operation

    Main menu Sub-menu Function Edit ↑ ↑ ↑ → ↑ ^ ^ ^ ^ mode ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ 01/2015 - 4000432304 - MA BW25 R07 en www.krohne.com...

  • Page 42: Changing The Settings In The Menu

    6.3.4 Measures in the event of faulty indications If the indications on the display or the responses to keypad commands are faulty, you have to do a hardware reset. Switch the power supply OFF and ON again. www.krohne.com 01/2015 - 4000432304 - MA BW25 R07 en...

  • Page 43: Overview Of The Most Important Functions And Indicators

    The value set is represented by a 20 mA analogue current output. If the current value exceeds the preset value, an alarm is indicated. Level units The following units are supported: m - cm - mm - inch - feet 01/2015 - 4000432304 - MA BW25 R07 en www.krohne.com...

  • Page 44: Error Messages

    Activate linearization or carry it out again LINEARIZED activated = measuring ® (HART communication and linearization error software are required; the original calibration values must be known), or send the device back to the manufacturer for linearization. www.krohne.com 01/2015 - 4000432304 - MA BW25 R07 en...
  • Page 45 ® DDs ("driver") for HART Tools, process control (e.g. Siemens PDM or AMS) PACTware™ and ® HART DTMs are available at the KROHNE Download Center. 01/2015 - 4000432304 - MA BW25 R07 en www.krohne.com...

  • Page 46: Menu Indicator Esk4-T

    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. www.krohne.com 01/2015 - 4000432304 - MA BW25 R07 en...

  • Page 47: Menu Structure

    ACTIV HI INPUT; ACTIV LO, ON, OFF 2.5 DEVICE ID 2.5.1 ELEC. REV. 2.5.2 SN ESK4 2.5.3 PA ORDER 2.5.4 DEVICE SN. 2.6 SOFT.VERSION 2.6.1 FW. ESK4 2.6.2 FW. ESK4 I/O 2.7 TAG No. 01/2015 - 4000432304 - MA BW25 R07 en www.krohne.com...
  • Page 48 OFF, ALARM HIGH, ALARM LOW 3.11 FS&UNIT 3.11.1 MEASURED VALUE 3.11.2 N/A 3.12 LFC 3.12.1 N/A 3.12.2 N/A 3.12.3 N/A 3.13 ENTRY CODE OFF, ON 3.14 BASIC SETTING SET ALL NO, SET ALL YES www.krohne.com 01/2015 - 4000432304 - MA BW25 R07 en...

  • Page 49: Menu Explanations

    INACTIVE, SWITCHPOINT One of the following functions can be selected as contact type under Fct. 3.5: NO contact 1 / NC contact 2 01/2015 - 4000432304 - MA BW25 R07 en www.krohne.com...
  • Page 50 As a general rule, data is transferred from the module to the ESK4-T and vice versa when the device starts. To make sure, selecting this menu point when confirming with YES can perform another data transmission. www.krohne.com 01/2015 - 4000432304 - MA BW25 R07 en...
  • Page 51 Software revision status for device insert ESK4-Basic 2.6.2 FW. ESK4 I/O Software revision status for optional add-on module ESK4-T TAG NO. xxxxxxxx Measuring point identifier Alphanumerical characters. Up to eight digits possible 01/2015 - 4000432304 - MA BW25 R07 en www.krohne.com...
  • Page 52 If a current measuring device in the 4...20mA loop detects a deviation from the desired value 4,000mA, the measured value must be entered. The correction value is accepted following the query Save and Confirm with YES. www.krohne.com 01/2015 - 4000432304 - MA BW25 R07 en...
  • Page 53 The display shows the required key combination. BASIC SETTING 3.14 Resetting parameters to factory default There is always a safety prompt (yes/no), to avoid accidental resetting. 01/2015 - 4000432304 - MA BW25 R07 en www.krohne.com...

  • Page 54: Service

    Avoid electrostatic charges when cleaning the surfaces (e.g. sight window)! 7.2 Replacement and retrofitting 7.2.1 Indicator M9 Some of the levelmeter components BW25 with the indicator M9 can be retrofitted: • Limit switch module • Current output ESK2A Replacement - Retrofitting limit switch modul •...
  • Page 55 • Measuring point designation • Digital measured value query in level units, % and mA • Test / setting functions • Calibration 4.00 and 20.00 mA • Set current output to any desired value 01/2015 - 4000432304 - MA BW25 R07 en www.krohne.com...

  • Page 56: Indicator M10

    • Insert the contact modules into the slot 4 of the bracket until the semi-circle 1 of 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. www.krohne.com 01/2015 - 4000432304 - MA BW25 R07 en...
  • Page 57 • Measuring point designation • Digital measured value query in level units, % and mA • Test / setting functions • Calibration 4.00 and 20.00 mA • Set current output to any desired value 01/2015 - 4000432304 - MA BW25 R07 en www.krohne.com...

  • Page 58: Spare Parts Availability

    • such dangerous substances, to enclose a certificate with the device confirming that is safe to handle and stating the • product used. www.krohne.com 01/2015 - 4000432304 - MA BW25 R07 en...

  • Page 59: Form (For Copying) To Accompany A Returned 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: 7.6 Disposal CAUTION! Disposal must be carried out in accordance with legislation applicable in your country. 01/2015 - 4000432304 - MA BW25 R07 en www.krohne.com...

  • Page 60: Technical Data

    Due to the length of the spring suspension pin 3, the unmeasureable area is L = 340 mm. 1 Measuring spring 2 Measuring range 3 L ≥ 340mm 4 Displacer rod www.krohne.com 01/2015 - 4000432304 - MA BW25 R07 en...

  • Page 61: Technical Data

    40 bar - optional to 400 bar / 580 - optional 5802 psig Standard flange DN50 - PN40 / 2" ASME 300 lbs Optional flange ...DN100 - ...PN400 / …4" ASME ...2.500 lbs 01/2015 - 4000432304 - MA BW25 R07 en www.krohne.com...
  • Page 62 M 16x1.5 Standard 3...7 mm 0.118...0.276" M20 x 1.5 8...13 mm 0.315...0.512" M 16x1.5 Nickel-plated brass 5...9 mm 0.197...0.355" M20 x 1.5 Nickel-plated brass 10...14 mm 0.394...0.552" 1 M9 2 M9 and M40 www.krohne.com 01/2015 - 4000432304 - MA BW25 R07 en...
  • Page 63 Device error identification > 106.25 > 21.00 Maximum 131.25 Multi-drop operation Min. U 12VDC ext. 1 M40 ESK4-FF Physical layer IEC 61158-2 and FISCO Modell Communication standard H1 FOUNDATION Fieldbus protokol 01/2015 - 4000432304 - MA BW25 R07 en www.krohne.com...
  • Page 64 < 1 mA switching value reached; reached Switch output transistor (open collector) Power supply Nominal 24 VDC, maximal 30 VDC 500 mW Continuous current max. 100 mA ≤ 2mA No load current I www.krohne.com 01/2015 - 4000432304 - MA BW25 R07 en...
  • Page 65 8 VDC ext. Signal current > 3 mA switching value not < 1 mA switching value reached; reached Switch output, open collector Power supply 8...30 VDC Pmax 500 mW Imax 100mA 01/2015 - 4000432304 - MA BW25 R07 en www.krohne.com...

  • Page 66: Dimensions

    ≥ 20 [mm] min. 340 ≥ 0.79 ["] 7.13 4.33 5.44 6.62 min 13.39 4.18 11.94 7.29 1 Length of the displacer rod (measuring area) 2 According to the operating conditions www.krohne.com 01/2015 - 4000432304 - MA BW25 R07 en...
  • Page 67 ≥ 20 [mm] min. 340 ≥ 0.79 ["] 5,44 3,70 5,44 6,62 min 13,39 4,49 11,94 7,76 1 Length of the displacer rod (measuring area) 2 According to the operating conditions 01/2015 - 4000432304 - MA BW25 R07 en www.krohne.com...
  • Page 68 [mm] ["] 11.9 Dimensions of bypass chamber [mm] ["] 13.4 1 Connection according to DIN EN 1092-1 2 Length of the displacer rod (measuring area) 3 Connection according to ASME B16.5 www.krohne.com 01/2015 - 4000432304 - MA BW25 R07 en...

  • Page 69: Notes

    NOTES BW25 01/2015 - 4000432304 - MA BW25 R07 en www.krohne.com...
  • Page 70 NOTES BW25 www.krohne.com 01/2015 - 4000432304 - MA BW25 R07 en...
  • Page 71 NOTES BW25 01/2015 - 4000432304 - MA BW25 R07 en www.krohne.com...
  • Page 72 Measuring systems for the marine industry Head Office KROHNE Messtechnik GmbH Ludwig-Krohne-Str. 5 47058 Duisburg (Germany) Tel.:+49 203 301 0 Fax:+49 203 301 103 89 info@krohne.com The current list of all KROHNE contacts and addresses can be found at: www.krohne.com...

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