Related Manuals for KROHNE H250H
Summary of Contents for KROHNE H250H
- Page 1 H250 H250 H250 H250 Handbook Handbook Handbook Handbook Variable area flowmeter © KROHNE 04/2009 - 4000269302 MA H250-R02...
- 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 & Co. KG. Subject to change without notice. Copyright 2009 by KROHNE Messtechnik GmbH & Co. KG - Ludwig-Krohne-Straße 5 - 47058 Duisburg www.krohne.com 04/2009 - 4000269302 MA H250-R02...
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Page 3: Table Of Contents
4.4.3 Switching outputs B1 and B2 ....................37 4.4.4 Switching output B2 as a pulse output ................. 39 4.4.5 Connection reset input R ...................... 40 4.5 Grounding connections....................40 4.6 Protection category ......................41 04/2009 - 4000269302 MA H250-R02 www.krohne.com... - Page 4 7.5.2 Form (for copying) to accompany a returned device............63 7.6 Disposal .......................... 63 8 Technical data 8.1 Operating principle......................64 8.2 Technical data......................... 65 8.3 Dimensions and weights ....................76 8.4 Measuring ranges......................80 www.krohne.com 04/2009 - 4000269302 MA H250-R02...
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Page 5: Safety Instructions
• Devices for use in hazardous areas: ATEX Directive 94/9/EC as well as • NAMUR recommendations NE 21 and NE 43 The manufacturer certifies successful testing of the product by applying the CE marking. 04/2009 - 4000269302 MA H250-R02 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 04/2009 - 4000269302 MA H250-R02... -
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 underneath icons. 04/2009 - 4000269302 MA H250-R02 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 04/2009 - 4000269302 MA H250-R02... -
Page 9: Device Description
Figure 2-1: Scope of delivery 1 Measuring device in ordered version 2 For indicator M10 - bar magnet 3 For indicator M10 - key 4 Documentation 5 Certificates, calibration report (supplied to order only) 04/2009 - 4000269302 MA H250-R02 www.krohne.com... -
Page 10: Device Version
The following designs are available as options: • H250 with indicator M9 as high-temperature version HT • H250 with indicator M9 with added impact and corrosion protection (special paint finish) • H250 with indicator M9 in Stainless Steel housing www.krohne.com 04/2009 - 4000269302 MA H250-R02... - Page 11 1 H250/RR/M8EG • Electronic bar graph indicator ® • 2-wire current output 4…20 mA, HART communication 2 H250/RR/M8MG • Local indication without auxiliary power supply • 2 limit switches, 2-wire, type NAMUR or NAMUR safety-oriented 04/2009 - 4000269302 MA H250-R02 www.krohne.com...
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Page 12: Float Damping
The eddy current brake can be retrofitted without having to recalibrate and while in operation (see Service). 1 Eddy current brake 2 Pointer vane 3 Bracket 4 Pointer cylinder www.krohne.com 04/2009 - 4000269302 MA H250-R02... -
Page 13: Nameplate
8 Internet site Additional markings on the indicator • SN - serial number • SO - sales order / item • PA - order • Vx - product configurator code • AC - article code 04/2009 - 4000269302 MA H250-R02 www.krohne.com... -
Page 14: Description Code
2.4 Description code The description code* consists of the following elements: 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... -
Page 15: Installation
• 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. 04/2009 - 4000269302 MA H250-R02 www.krohne.com... -
Page 16: Installation Conditions
• stresses. If necessary, the piping has to be supported to prevent vibrations being transmitted to the • measuring device. Do not lay signal cables directly next to cables for the power supply. • www.krohne.com 04/2009 - 4000269302 MA H250-R02... -
Page 17: Tightening Torques
INSTALLATION H250 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. -
Page 18: Magnetic Filters
All of the magnets are coated individually with PTFE to protect against corrosion. Material: 1.4571 Magnetic filters 1 Type F - fitting part with flange - overall length 100 mm 2 Type FS - fitting part without flange - overall length 50 mm www.krohne.com 04/2009 - 4000269302 MA H250-R02... -
Page 19: Heat Insulation
This applies in the same manner to indicators M8 and M10. CAUTION! The heat insulation 1 may only reach to the rear of the housing 2. The area of the cable entries 3 must be freely accessible. Figure 3-2: Insulation - cross section 04/2009 - 4000269302 MA H250-R02 www.krohne.com... -
Page 20: 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. www.krohne.com 04/2009 - 4000269302 MA H250-R02... -
Page 21: Electrical Connection Indicator M8
3 Connection board 4 Connection terminal 4.2.2 Indicator M8E - current output Figure 4-2: Electrical connection M8EG 1 Terminal connection 2 Power supply 14.8...30 VDC 3 Measuring signal 4...20 mA ® 4 External load, HART communication 04/2009 - 4000269302 MA H250-R02 www.krohne.com... - Page 22 22 mA + 14.8 V ext. where = the minimum supply voltage and ext. = the total measuring loop resistance is. INFORMATION! The power supply has to be able to supply a minimum of 22 mA. www.krohne.com 04/2009 - 4000269302 MA H250-R02...
- Page 23 Two limit values can be set and monitored. The limit values are assigned either to flow values or to the counter overflow. The limit values are not depicted on the display. 04/2009 - 4000269302 MA H250-R02 www.krohne.com...
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Page 24: Electrical Connection Indicator M9
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 www.krohne.com 04/2009 - 4000269302 MA H250-R02... - Page 25 • 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. 04/2009 - 4000269302 MA H250-R02 www.krohne.com...
- Page 26 2 MIN 1 contact or MAX 2 contact 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 04/2009 - 4000269302 MA H250-R02...
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Page 27: Indicator M9 - Current Output Esk2A
(PELV) 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 04/2009 - 4000269302 MA H250-R02 www.krohne.com... - Page 28 ® 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 mA per device). www.krohne.com 04/2009 - 4000269302 MA H250-R02...
- Page 29 • Signal detection of the measuring range of the internal sensors • Temperature compensation of the internal sensors • Calibration corresponding the application • Plausibility of counting value • Plausibility of physical unit, system and selected unit 04/2009 - 4000269302 MA H250-R02 www.krohne.com...
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Page 30: Indicator M9 - Profibus Pa (Esk3-Pa)
Connection Figure 4-5: ESK3-PA connection 1 Signal connection 2 Shielding and grounding Polarity reversal has no effect on the function. The cable shield should be connected with minimum length to the functional ground FE. www.krohne.com 04/2009 - 4000269302 MA H250-R02... -
Page 31: Indicator M9 - Totalizer (Esk-Z)
0100 Part 410 is required as a power supply. All the instruments (recorder, display, etc.) connected to measuring circuits S+ and S- are connected in series. If this measuring circuit is not needed, then a short-circuit jumper 3 required. 04/2009 - 4000269302 MA H250-R02 www.krohne.com... - Page 32 Figure 4-8: Settings of the counter at the moment of switch-on RESET button - mA calibration Button 1 - Display test Button 2 - Changing the conversion factor Button 3 - Software hardware version (information) www.krohne.com 04/2009 - 4000269302 MA H250-R02...
- Page 33 • Set 4.00 mA • Keep button 1 pressed until the number 0 is displayed • Set 20.00 mA • Keep button 3 pressed until the number 100 is displayed • Exit calibration by pressing button 2 04/2009 - 4000269302 MA H250-R02 www.krohne.com...
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Page 34: Electrical Connection Indicator M10
4.4.2 Power supply - current output The electrical connection is reverse-polarity protected. Terminal connection I 1 Terminal connection 2 Power supply 16...32 VDC 3 Measuring signal 4...20 mA ® 4 External load, HART communication www.krohne.com 04/2009 - 4000269302 MA H250-R02... - Page 35 22 mA + 16 V ext. where = the minimum supply voltage and ext. = the total measuring loop resistance is. INFORMATION! The power supply has to be able to supply a minimum of 22 mA. 04/2009 - 4000269302 MA H250-R02 www.krohne.com...
- Page 36 The current flow rate can be transmitted using the integrated HART communication. The flow counter can be configured. Two limit values can be monitored. The limit values are assigned either to flow values or to the counter. www.krohne.com 04/2009 - 4000269302 MA H250-R02...
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Page 37: Switching Outputs B1 And B2
5 Load R Switching values NC contact NO contact NAMUR NAMUR I [mA] Switching value reached < 1 < 1 > 3 max. 100 Switching value not reached > 3 max. 100 < 1 < 1 04/2009 - 4000269302 MA H250-R02 www.krohne.com... - Page 38 2 Minimum load impedance R [Ohm] 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 04/2009 - 4000269302 MA H250-R02...
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Page 39: Switching Output B2 As A Pulse Output
B1. It can be operated as a low-resistance output or as a NAMUR output. Figure 4-13: Daten Pulsausgang = 10 Hz The pulse width t can be configured from 30...500 ms in the menu of the indicator. 04/2009 - 4000269302 MA H250-R02 www.krohne.com... -
Page 40: Connection Reset Input R
Figure 4-15: Ground connections 1 Indicator M8 2 Indicator M9 3 Indicator M10 DANGER! The grounding wire may not transfer any interference voltage. Do not use this grounding wire to ground any other items of electrical equipment. www.krohne.com 04/2009 - 4000269302 MA H250-R02... -
Page 41: Protection Category
• Close the unused cable glands using blanking plugs 1. Figure 4-16: Cable gland 1 Use blanking plugs if no cable is routed through 2 Tighten cable gland firmly 3 Lay the cable in a loop 04/2009 - 4000269302 MA H250-R02 www.krohne.com... -
Page 42: 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 04/2009 - 4000269302 MA H250-R02... -
Page 43: Operation
The mechanical keys and keys for the bar magnet are identical in their function. In this documentation the keys are represented as symbols to describe the operating functions: Symbol Enter ↑ → right Table 6-1: M10 operation keys 04/2009 - 4000269302 MA H250-R02 www.krohne.com... -
Page 44: Basic Principles Of Operation
Sub-menu Function Edit ↑ ↑ ↑ → ↑ ^ ^ ^ ^ operation ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ Table 6-3: Navigation menu structure www.krohne.com 04/2009 - 4000269302 MA H250-R02... -
Page 45: Changing The Settings In The Menu
6.2.4 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. 04/2009 - 4000269302 MA H250-R02 www.krohne.com... -
Page 46: Overview Of The Most Important Functions And Indicators
ImpGal/s ImpGal/min ImpGal/h ImpGal/d Mass g/min Liquids, vapours, gases kg/s kg/min kg/h kg/d t/min lb/s lb/min lb/h short t/min short t/h short t/d long t/h long t/d www.krohne.com 04/2009 - 4000269302 MA H250-R02... -
Page 47: Error Messages
COUNTER LOST Totalizer value was Warning Because the reset time is not known: reset by Controlled reset of the counter using menu error/overflow item 1.5.1 or using HART® tools/process control system. 04/2009 - 4000269302 MA H250-R02 www.krohne.com... - Page 48 ® Device drivers for HART tools, process control equipment (e.g. Siemens PDM or AMS) ® PACTware and HART DTMs are available on the internet site. www.krohne.com 04/2009 - 4000269302 MA H250-R02...
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Page 49: Menu Indicator M10
Input code INFORMATION! The device has been set 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. 04/2009 - 4000269302 MA H250-R02 www.krohne.com... -
Page 50: Menu Structure
3.11 Calibration 20mA 3.12 Alarm current 3.13 Upper range value and unit 3.13.1 Flow rate 3.13.2 Counter 3.14 Low Flow Cutoff LFC 3.14.1 Control 3.14.2 Switch-on value 3.14.3 Switch-off value 3.15 Input code 3.16 Basic setting www.krohne.com 04/2009 - 4000269302 MA H250-R02... -
Page 51: Menu Explanations
COUNTER.VAL B1 PUL. VAL B2 B2 = pulse output Note: Note: Note: Note: Settings under menu 3.6 pulse duration and 3.7 Pulses/unit 1.2.2 OUTPUT B2 HYST.B2 See HYST. B1 DISPLAY FLOW RATE COUNTER FLOW&COUNT PERCENT 04/2009 - 4000269302 MA H250-R02 www.krohne.com... - Page 52 Output B1 is normally open. If an alarm situation occurs, the contact closes. FUNCTION B2 INACTIVE See FUNCTION B1 SWITCHING See FUNCTION B1 POINT COUNTER_LIM See FUNCTION B1 PULSE OUTPUT Output B2 generates pulses up to 10 Hz depending on the current flow value. www.krohne.com 04/2009 - 4000269302 MA H250-R02...
- Page 53 For a units list, see chapter 7.4 of the handbook 3.13.2 COUNTER As standard, the unit for the counter is derived from the unit for the flow measurement. It can also be changed individually. 04/2009 - 4000269302 MA H250-R02 www.krohne.com...
- Page 54 This menu item can be used to select the calibrated basic setting. SETTING This can be helpful if operating data have been changed a number of times. This menu item cannot be used to reset the calibration. www.krohne.com 04/2009 - 4000269302 MA H250-R02...
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Page 55: Service
• Insert the snap ring into the measuring unit. • Fit the device back into the piping. CAUTION! An additional measuring error is to be expected if recalibration is not conducted. 04/2009 - 4000269302 MA H250-R02 www.krohne.com... -
Page 56: Retrofitting Float Damping
(eddy current brake), which may trigger an error alarm or may change the current output by showing peaks. The Eddy current brake consists of two parts: 1 Turnbuckle 2 Eddy current brake www.krohne.com 04/2009 - 4000269302 MA H250-R02... -
Page 57: Retrofitting Limit Switch
• Insert the contact module into the third slot of the bracket until the semi-circle 3 surrounds the pointer cylinder. The contact module connecting terminals feature a pluggable design and can be removed in order to connect the cables. 04/2009 - 4000269302 MA H250-R02 www.krohne.com... -
Page 58: Replacement - Retrofitting Esk2A
• Measuring point designation • 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 www.krohne.com 04/2009 - 4000269302 MA H250-R02... -
Page 59: Totalizer
• Insert the flow counter unit into the centre track of the module carrier. • Insert the new scale into the module carrier. • In so doing, lift the scale slightly until the scale cutout surrounds the counter display. 04/2009 - 4000269302 MA H250-R02 www.krohne.com... -
Page 60: Spare Parts Availability
Set float stop; standard (1 stop, 1 span ring) X253050100 Set float stop; gas damping (ZrO X253050200 Set float stop; gas damping (PEEK) X253050300 Damping bush (14x10) ZrO incl. 2 span rings X253053100 Damping bush (14x10) PEEK incl. 2 span rings X253053200 www.krohne.com 04/2009 - 4000269302 MA H250-R02... - Page 61 Eddy current brake X251022200 Printed scale (serial number required) On request Blank scale X251023200 Printed scale with counter cutout (serial number required) On request Blank scale with counter cutout X251023400 Other spare parts on request 04/2009 - 4000269302 MA H250-R02 www.krohne.com...
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Page 62: Availability Of Services
• such dangerous substances, to enclose a certificate with the device confirming that is safe to handle and stating the • product used. www.krohne.com 04/2009 - 4000269302 MA H250-R02... -
Page 63: 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. 04/2009 - 4000269302 MA H250-R02 www.krohne.com... -
Page 64: Technical Data
The flow-dependent position of the float in the measuring unit is displayed on a scale by means of a magnetic coupling. INFORMATION! Flowmeters H250H and H250U only work in conjunction with indicator M9. www.krohne.com 04/2009 - 4000269302 MA H250-R02... -
Page 65: Technical Data
Measuring accuracy Directive VDI / VDE 3513, sheet 2 (q = 50%) H250 /RR /HC /F 1.6% H250/C (Ceramic, PTFE) 2.5% H250H, H250U, H250 (100 : 1) Operating conditions Temperature Temperature Temperature Temperature Max. operating temperature TS -196..+300°C / -321...+572°F... - Page 66 ® ® Hastelloy Hastelloy H250/C PTFE PTFE -196...+70 -321...+158 -40...+70 -40…+158 H250/C Ceramic PTFE -196...+150 -321...+302 -40...+70 -40…+158 H250/C Ceramic -196...+250 -321...+482 -40...+120 -40…+248 H250 H/U Stainless Steel Stainless Steel -40...+100 -40…+212 -20…+90 -4…+194 www.krohne.com 04/2009 - 4000269302 MA H250-R02...
- Page 67 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) Abbreviation High-temperature version ESK2A Current output 2-wire 4…20 mA ESK3-PA PROFIBUS PA interface 04/2009 - 4000269302 MA H250-R02 www.krohne.com...
- Page 68 Max. product temperature T at T +60°C / +140°F -25...+145 -13…+293 amb. Ambient temperature T -25…+70 -13…+158 amb. Max. product temperature T at T +60°C / +140°F -80...+200 -112…+392 amb. Ambient temperature T -40…+75 -40…+167 amb. www.krohne.com 04/2009 - 4000269302 MA H250-R02...
- Page 69 Max. external resistance / load 640 Ohm (30 VDC) 250 Ohm ® Min. load for HART ® M8E HART configuration Manufacturer name (code) KROHNE Messtechnik (69) Model name M8E (230) ® HART protocol revision Device revision Physical layer Device category...
- Page 70 Min. load for HART Software firmware version 02.15 Ident No. 4000054602 ® ESK2A HART configuration Manufacturer name (code) KROHNE Messtechnik (69 = 45h) Model name ESK2A (226 = E2h) ® HART protocol revision Device revision Physical layer Device category Transmitter without galvanic isolation www.krohne.com...
- Page 71 80 ms fixed pulse width T off depending on flow rate U on Ub – 3 VDC U off 0 VDC Pulse value 1 pulse = 1 display counter advance (1 litre, 1 m ...) 04/2009 - 4000269302 MA H250-R02 www.krohne.com...
- Page 72 Profiles B, V3.0 Function blocks Flow rate (AI0) Volume or mass Totalizer (TOT0) Volume totalizer Default unit: [m Totalizer (TOT1) Mass totalizer Default unit: [kg] Address range 0...126, default 126 SAP`s Service Access Points Device Description www.krohne.com 04/2009 - 4000269302 MA H250-R02...
- Page 73 ≥ 250 Ohm Min. load for HART Software firmware version 02.17 Ident No. 3209470500 ® M10 HART Manufacturer name (code) KROHNE Messtechnik (69 = 45h) Model name M10 (234 = EA) ® HART protocol revision Device revision Physical layer Device category...
- Page 74 100 mA M10 reset input Binary input Galvanically isolated Operating mode Reset counter Configurable as active Hi / active Lo Voltage level 5...30 VDC ≤ 1 mA Current consumption ≥500 ms Pulse length (active) www.krohne.com 04/2009 - 4000269302 MA H250-R02...
- Page 75 NI/I/2/ABCD;T6 XP/I/1/IIC/T6 NI/I/2/IIC/T6 DIP/II,III/1/EFG/T6 S/II,III/2/FG/T6 XP/I/1/ABCD;T6 NI/I/2/ABCD;T6 XP/I/1/IIC/T6 NI/I/2/IIC/T6 DIP/II,III/1/EFG/T6 S/II,III/2/FG/T6 Nepsi Ex ia IIC T1-T6 Ex nA II T1-T6 Ex iA IIC T1-T6 Ex d IIC T1-T6 INMETRO II2G EEx d IIC T6...T1 04/2009 - 4000269302 MA H250-R02 www.krohne.com...
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Page 76: Dimensions And Weights
ISO 228 ISO 228 H250/F H250/F female thread female thread Clamp connection Screw connection screwed welded DIN 11851 1 Stainless steel 1.4435 - EHEDG tested - wetted surfaces Ra ≤ 0.8 / 0.6 µm www.krohne.com 04/2009 - 4000269302 MA H250-R02... - Page 77 79.5 3.13 3.11 39.5 1.56 DN80 3" 4.14 2.88 45.5 1.79 95.5 3.76 3.11 39.5 1.56 DN100 4" 4.49 2.88 45.5 1.79 4.12 3.11 39.5 1.56 For overall height see devices with indicator M9 04/2009 - 4000269302 MA H250-R02 www.krohne.com...
- Page 78 Meters (H250/RR /HC) with heating: Heating with flange connection EN 1092-1 DN15 PN40 ASME B16.5 150 lbs / RF ½" Heating pipe connection for Ermeto PN40 Higher pressure ratings and other connections on request www.krohne.com 04/2009 - 4000269302 MA H250-R02...
- Page 79 2" 150 lbs / 300 lbs 4x 5/8" 8x 5/8" 3" 150 lbs / 300 lbs 4x 5/8" 8x ¾" 4" 150 lbs / 300 lbs 8x 5/8" 8x ¾" 1 standard connections; other connections on request 04/2009 - 4000269302 MA H250-R02 www.krohne.com...
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Page 80: Measuring Ranges
• 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. www.krohne.com 04/2009 - 4000269302 MA H250-R02... - Page 81 • 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. 04/2009 - 4000269302 MA H250-R02 www.krohne.com...
- Page 82 • 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. www.krohne.com 04/2009 - 4000269302 MA H250-R02...
- Page 83 • 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. 04/2009 - 4000269302 MA H250-R02 www.krohne.com...
- Page 84 TECHNICAL DATA H250 H250H - Horizontal installation position Measuring span 10 : 1; flow values 100% ASME Cone Flow rate Flow rate Pressure loss Water [l/h] [mbar] Air [Nm DN15 K 15.1 ½ K 15.2 K 15.3 K 15.4 K 15.5 K 15.6...
- Page 85 TECHNICAL DATA H250 H250H - Horizontal installation position Measuring span 10 : 1; flow values 100% ASME Cone Flow rate Flow rate Pressure loss Water [gph] Air [scfm] [psig] DN15 1/2" K 15.1 18.5 1.12 2.87 K 15.2 31.7 1.86 3.00...
- Page 86 • The indicated pressure losses are valid for water and air at maximum flow rate. • Other flow ranges on request. • Conversion to other media or operating data in accordance with VDE /VDI Directive 3513 www.krohne.com 04/2009 - 4000269302 MA H250-R02...
- Page 87 • The indicated pressure losses are valid for water and air at maximum flow rate. • Other flow ranges on request. • Conversion to other media or operating data in accordance with VDE /VDI Directive 3513 04/2009 - 4000269302 MA H250-R02 www.krohne.com...
- Page 88 Measuring systems for sea-going tankers Head Office KROHNE Messtechnik GmbH & Co. KG Ludwig-Krohne-Str. 5 D-47058 Duisburg (Germany) Tel.:+49 (0)203 301 0 Fax:+49 (0)203 301 10389 info@krohne.de The current list of all KROHNE contacts and addresses can be found at: www.krohne.com...