Флексус f721 руководство по эксплуатации

Характеристики

Характеристики:

• Точное и очень надежное неинтрузивное измерение объемного и массового расходов используя накладные датчики
• Установка и ввод в эксплуатацию не требуют работ врезки в трубу и не прерывают рабочий процесс
• Высокая точность измерения даже при очень низких или высоких скоростях потока и вне зависимости от направления потока (двунаправленно)
• Возможность измерять тепловые или холодные потоки с помощью накладных или встроенных датчиков температуры
• Загрузка данных калибровки и распознавание датчиков проводятся автоматически
• Двунаправленная коммуникация и поддержка общепринятых систем шины (Profibus PA, Foundation Fieldbus, HART, Modbus, BACnet, M-Bus)
• Расширенный самоконтроль и возможности записи данных по событиям, чтобы проследить и контролировать критические операционные ситуации
• В ассортименте имеются преобразователь и датчики для применения во взрывоопасных зонах
• Калибровка преобразователя и датчиков проведена независимо друг от друга и является прослеживаемой к национальным стандартам
• Датчики для большого диапазона внутренних диаметров труб и температур среды
• Стабильная точка нуля, без смещения и измерение вне зависимости от материала трубы, а также от давления, температуры и среды процесса

Области применения:

• Химическая промышленность
• Нефтехимическая промышленность
• Нефтегазовая промышленность
• Фармацевтическая промышленность
• Полупроводниковая промышленность
• Производство
• Инженерное оборудование зданий/энергоменеджмент
• Системы водоснабжения и канализации
• Горная промышленность

Инструкции

ПО

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3. Flexim Manuals
4. Measuring Instruments
5. FLUXUS H721
6. Operating instruction

• Page 1
  Operating instruction FLUXUS H721 UMFLUXUS_H721V1-5EN…
• Page 2
  FLUXUS is a registered trademark of FLEXIM GmbH. FLEXIM GmbH Boxberger Straße 4 12681 Berlin Germany Tel.: +49 (30) 936 67 660 Fax: +49 (30) 936 67 680 E-mail: info@flexim.com www.flexim.com Operating instruction for FLUXUS H721 UMFLUXUS_H721V1-5EN, 2022-05-15 Article number: 25845 Copyright (©) FLEXIM GmbH 2022…

• Page 3: Table Of Contents

  FLUXUS H721 Table of contents Table of contents Introduction …………….7 Safety instructions .

• Page 4
  Table of contents FLUXUS H721 Measurement …………….99 Enabling the HPI measuring mode .
• Page 5
  FLUXUS H721 Table of contents Data transmission …………..171 18.1…
• Page 6
  Table of contents FLUXUS H721 2022-05-15, UMFLUXUS_H721V1-5EN…

• Page 7: Introduction

  Copyright The contents of this operating instruction are subject to changes without prior notice. All rights reserved. No part of this operating instruction may be reproduced in any form without FLEXIM’s written permission. UMFLUXUS_H721V1-5EN, 2022-05-15…

• Page 8: Safety Instructions

  The measuring equipment has to be checked for proper condition and operational safety before each use. If troubles or damages have occurred during installation or operation of the measuring equipment, please inform FLEXIM. It is not allowed to make unauthorized modifications or alterations to the measuring equipment.

• Page 9: Not Intended Use

  • With the exceptions stated in chapter 11, the measuring equipment is maintenance-free. Any components and spare parts may only be replaced by FLEXIM. The operator shall carry out periodic checks for changes or damages that can present a danger. For further information, contact FLEXIM.

• Page 10: Safety Instructions For Transport

  → Wear the required personal protective equipment. → Observe the applicable rules. • If you detect a transport damage when unpacking the delivery, please contact the supplier or FLEXIM immediately. • The transmitter is a sensitive electronic measuring instrument. Avoid shocks or impacts.

• Page 11: General Principles

  General principles The FLUXUS H721 is used in the oil and gas industry on single and multiproduct pipelines of liquid hydrocarbons. Its purpose is the measurement of the volumetric flow rate and the standard volumetric flow rate by means of the transit time difference principle.

• Page 12
  3 General principles 3.1 Measurement principle FLUXUS H721 Fig. 3.2: Sound path of the signal in the flow direction reduction of the sound path α α α β β γ sound path without γ flow sound path with flow flow direction of the fluid c –…
• Page 13
  3 General principles FLUXUS H721 3.1 Measurement principle Transit time measurement The average of the transit times of the ultrasonic signals in the fluid and the length of the sound paths in the fluid are used for the calculation of the sound speed. By using the average, the sound speed is independent of the flow velocity of the fluid.
• Page 14
  875…1163 -10…+20 10…250 ρ/ρ The table can be used to adapt the FLUXUS H721 to the application in the field. The expected fluids with their properties are entered. Further calculations are adapted to the fluid. 2022-05-15, UMFLUXUS_H721V1-5EN…

• Page 15: Measurement Arrangements

  3 General principles FLUXUS H721 3.2 Measurement arrangements Measurement arrangements 3.2.1 Terms diagonal arrangement reflection arrangement The transducers are mounted on opposite sides of the pipe. The transducers are mounted on the same side of the pipe. Sound path The distance covered by the ultrasonic signal after crossing the pipe once. The number of the sound paths is: •…

• Page 16
  3 General principles 3.2 Measurement arrangements FLUXUS H721 Sound beam plane Plane containing 1 or several sound paths or beams Fig. 3.8: 2 beams in 1 plane Fig. 3.9: 2 sound paths in 1 plane 3.2.2 Examples diagonal arrangement with 1 beam…

• Page 17: Acoustic Penetration

  3 General principles FLUXUS H721 3.3 Acoustic penetration Acoustic penetration The pipe has to be acoustically penetrable at the measuring point. The acoustic penetration is given when pipe and fluid do not attenuate the sound signal so strongly that it is completely absorbed before reaching the second transducer.

• Page 18: Undisturbed Flow Profile

  3 General principles 3.4 Undisturbed flow profile FLUXUS H721 Free inlet or outlet pipe section Select the measuring point at a pipe section where the pipe cannot run empty. Fig. 3.14: Recommended transducer Fig. 3.15: Disadvantageous transducer mounting position mounting position Undisturbed flow profile Some flow elements (e.g., elbows, valves, pumps, reducers) distort the flow profile in their vicinity.

• Page 19
  3 General principles FLUXUS H721 3.4 Undisturbed flow profile Tab. 3.3: Recommended distance from disturbances D – nominal pipe diameter at the measuring point l – recommended distance between disturbance and transducer position disturbance: double elbow out of plane (with elbow distance l ≥…

• Page 20: Product Description

  4 Product description 4.1 Measuring system FLUXUS H721 Product description Measuring system The measuring system consists of the transmitter, the temperature probe, the ultrasonic transducers and the pipe on which the measurement is taken. Fig. 4.1: Example of a measurement arrangement 1 –…

• Page 21
  4 Product description FLUXUS H721 4.2 Handling concept Tab. 4.1: Description of the program branches program branch description Before starting a measurement, the transducer, pipe and fluid parameters have to be entered in the Parameters program branch Parameters. After activating the measuring channels and the input of the transducer distance, the measurement is Measurement started in the program branch Measurement.

• Page 22: Display

  4 Product description 4.3 Display FLUXUS H721 Display Structure Fig. 4.3: Menu item of the program branch Parameters 1 – program branch 2 – menu item currently edited 3 – area for scroll lists, selection fields or input fields Tab. 4.2:…

• Page 23: Keyboard

  4 Product description FLUXUS H721 4.4 Keyboard Keyboard The keyboard has 15 keys, including 3 function keys: ENTER, and C. Some keys have multiple functions. They can be used to enter data, to navigate through scroll lists as well as to execute special functions (e.g., reset of totalizers).

• Page 24: Transport And Storage

  The measuring equipment must be packaged properly for transport. For weight indications, see technical specification. • Use, if possible, the original packaging by FLEXIM or an equivalent cardboard box. • Position the transmitter, transducers and accessories in the middle of the cardboard box.

• Page 25: Mounting

  6 Mounting FLUXUS H721 Mounting Danger! Risk of explosion when using the measuring equipment in explosive atmospheres (ATEX, IECEx) This may result in personal or material damage or dangerous situations. → Observe the «Safety instructions for the use in explosive atmospheres» (see document SIFLUXUS).

• Page 26: Transmitter

  6 Mounting 6.1 Transmitter FLUXUS H721 Important! Remove all protective foils before using the measuring equipment in explosive atmospheres (see document SIFLUXUS). Transmitter 6.1.1 Opening and closing the housing 6.1.1.1 Opening Caution! Possible danger by opening the equipment at improper ambient conditions Open the transmitter in safe ambient conditions only (e.g., air humidity <…

• Page 27
  6 Mounting FLUXUS H721 6.1 Transmitter Transmitter with aluminum housing • Close the housing cover pressing it slightly upwards on the side of the screws. • Hand-tight all screws of the transmitter housing. Fig. 6.2: Transmitter 1 – screws 6.1.2…
• Page 28
  6 Mounting 6.1 Transmitter FLUXUS H721 Transmitter with aluminum housing • Fix the wall mount (2) with 3 countersunk-head screws (3) firmly to the wall. • Attach the transmitter (1) to the lower hooks (7) of the wall mount. • Fix the transmitter to the wall mount by locking the stop bolt (4) into the destined hole and by firmly tightening the screw (5).
• Page 29
  6 Mounting FLUXUS H721 6.1 Transmitter 6.1.2.2 Pipe mounting Notice! The pipe has to be sufficiently stable to withstand the pressure exerted by the transmitter and the shackles. Transmitter with stainless steel housing Installation on a 2» pipe • Position the transmitter and the shackle (1) on the pipe.
• Page 30
  6 Mounting 6.1 Transmitter FLUXUS H721 Transmitter with aluminum housing Notice! For the mounting on pipes the pipe mounting kit, consisting of 2 band clamps, 2 countersunk-head screws and 2 washers, is needed. The distance of the band clamps has to be identical to the distance of the holes on the wall mount.

• Page 31: Transducers

  6 Mounting FLUXUS H721 6.2 Transducers Transducers Mounting Caution! Warning of severe injuries from hot or cold components Touching hot or cold components can lead to severe injuries (e.g., thermal damage). → Any mounting, installation or connection work has to be concluded.

• Page 32
  6 Mounting 6.2 Transducers FLUXUS H721 6.2.1.2 Pipe preparation Caution! Contact with grinding dust This may result in injuries (e.g., breathing difficulties, skin reactions, eye irritations). → Wear the required personal protective equipment. → Observe the applicable rules. Important! The pipe has to be sufficiently stable to withstand the pressure exerted by the transducers and the fasteners.
• Page 33
  6 Mounting FLUXUS H721 6.2 Transducers Diagonal arrangement with 2 beams Reflection arrangement with 2 beams and 2 planes X arrangement • same characteristics as reflection arrangement with 1 beam • additional characteristic: influences of the flow profile are compensated because the measurement…
• Page 34
  6 Mounting 6.2 Transducers FLUXUS H721 Bidirectional measurement Measurement in reflection arrangement with 2 beams and 2 planes flow direction flow direction • The sound beam plane is selected • The 2 sound beam planes are selected according to the nearest elbow at an angle of 45°…
• Page 35
  6 Mounting FLUXUS H721 6.2 Transducers 6.2.2.2 Transducer arrangement The transducers can be arranged in the mounting rails in different ways: Fig. 6.9: Transducer arrangement in mounting rails reflection arrangement, 1 rail reflection arrangement, 2 rails diagonal arrangement, 2 parallel rails…
• Page 36
  6 Mounting 6.2 Transducers FLUXUS H721 6.2.2.4 Mounting with Variofix L (PermaRail) Scope of delivery (example) Variofix L transducer pair quick release clasp with tension strap band clamp clasp with tension strap ratchet clasp and tension strap coil 2022-05-15, UMFLUXUS_H721V1-5EN…
• Page 37
  6 Mounting FLUXUS H721 6.2 Transducers Mounting When measuring in diagonal arrangement, the transducer mounting fixtures are mounted on opposite sides of the pipe. When measuring in reflection arrangement, the transducer mounting fixtures are mounted on the same side of the pipe.
• Page 38
  6 Mounting 6.2 Transducers FLUXUS H721 Step 1: Disassembly of the transducer mounting fixture Variofix L • Disassemble the transducer mounting fixture Variofix L. Fig. 6.13: Disassembly of the transducer mounting fixture Variofix L 1 – cover 2 – screw 3 –…
• Page 39
  6 Mounting FLUXUS H721 6.2 Transducers • Insert approx. 100 mm of the tension strap into part (1) and (2) of the ratchet clasp (see Fig. 6.16 a). • Bend the tension strap. • Insert the tension strap into part (1) of the ratchet clasp (see Fig. 6.16 b).
• Page 40
  6 Mounting 6.2 Transducers FLUXUS H721 Fig. 6.18: Tension strap with clamp Fig. 6.19: Tension strap with quick release clasp and metal spring 1 – tension strap clamp 1 – clasp screw 2 – metal spring Fig. 6.20: Tension strap with band clamp clasp 1 –…
• Page 41
  6 Mounting FLUXUS H721 6.2 Transducers Fig. 6.21: Tension strap with metal spring and clamp 1 – metal spring 2 – tension strap clamp Fig. 6.22: Ratchet clasp with tension strap 1 – sense of rotation 2 – edge 3 – lever 4 –…
• Page 42
  6 Mounting 6.2 Transducers FLUXUS H721 • Select the installation instruction of the supplied clasp: Band clamp clasp • Insert the tension strap into the tension strap clamp (2). • Place the tension strap around the pipe and insert it into the clasp (see Fig. 6.25 and Fig. 6.26).
• Page 43
  6 Mounting FLUXUS H721 6.2 Transducers Ratchet clasp • Insert the tension strap into its clamp (2) and the metal spring (see Fig. 6.25 and Fig. 6.28). The metal spring does not have to be mounted on: – steel pipes –…
• Page 44
  6 Mounting 6.2 Transducers FLUXUS H721 • Repeat the steps to fix the second rail, see Fig. 6.30. Fig. 6.30: Pipe with 2 rails Step 5: Installation of the transducers in the mounting fixture Variofix L • Press the transducers firmly into their clamping fixtures in the covers until they are tightly fixed. The transducer cables show in opposite directions (see Fig.
• Page 45
  6 Mounting FLUXUS H721 6.2 Transducers Fig. 6.32: Adjustment of the transducer distance 1 – cover 2 – strain relief clamp 3 – equipotential bonding terminal a – transducer distance Notice! Make sure that the coupling foil remains on the contact surface of the transducers. For information concerning the coupling foil, see the safety data sheet.
• Page 46
  6 Mounting 6.2 Transducers FLUXUS H721 6.2.2.5 Mounting with Variofix C Scope of delivery (example) Variofix C transducer pair quick release clasp with tension strap band clamp clasp with tension strap tension strap coil ratchet clasp 2022-05-15, UMFLUXUS_H721V1-5EN…
• Page 47
  6 Mounting FLUXUS H721 6.2 Transducers Mounting When measuring in reflection arrangement, 1 transducer mounting fixture is mounted laterally on the pipe. When measuring in diagonal arrangement, 2 transducer mounting fixtures are mounted on opposite sides of the pipe. In the following, the installation of 1 transducer mounting fixture in reflection arrangement is described.
• Page 48
  6 Mounting 6.2 Transducers FLUXUS H721 Fig. 6.37: Disassembly of the transducer mounting fixture Variofix C 1 – cover 2 – tensioning screw 3 – spring clip 4 – indentation 5 – spacing element 6 – rail 7 – tension strap clamp Step 2: Fixation of the clasps to the tension straps •…
• Page 49
  6 Mounting FLUXUS H721 6.2 Transducers Ratchet clasp • Cut the tension strap to length (pipe circumference + at least 120 mm). Caution! The edge of the tension strap is very sharp. Risk of injury. → Debur sharp edges. → Wear the required personal protective equipment.
• Page 50
  6 Mounting 6.2 Transducers FLUXUS H721 Quick release clasp • Insert the tension strap into its clamp and the metal spring (see Fig. 6.42 and Fig. 6.43). • Position the clasp, the tension strap clamp and the metal spring on the pipe (see Fig. 6.41): –…
• Page 51
  6 Mounting FLUXUS H721 6.2 Transducers Notice! In order to release the screw and the tension strap, press the lever down (see Fig. 6.46). Fig. 6.45: Tension strap with metal spring and clamp 1 – metal spring 2 – tension strap clamp Fig.
• Page 52
  6 Mounting 6.2 Transducers FLUXUS H721 • Select the installation instruction of the supplied clasp: Band clamp clasp • Insert the tension strap into the tension strap clamp (2). • Place the tension strap around the pipe and insert it into the clasp (see Fig. 6.49 and Fig. 6.50).
• Page 53
  6 Mounting FLUXUS H721 6.2 Transducers Ratchet clasp • Insert the tension strap into its clamp (2) and the metal spring (see Fig. 6.49 and Fig. 6.52). The metal spring does not have to be mounted on: – steel pipes –…
• Page 54
  6 Mounting 6.2 Transducers FLUXUS H721 Step 5: Installation of the transducers in the mounting fixture Variofix C • Put coupling foil (or apply some coupling compound for a short-term installation) on the contact surface of the transducers. The coupling foil can be fixed to the contact surface with a small amount of coupling compound.
• Page 55
  6 Mounting FLUXUS H721 6.2 Transducers Fig. 6.56: Variofix C with transducers on the pipe 1 – cover 2 – screw Remove the cover from the mounted transducer mounting fixture Variofix C as follows: • Loosen the screws (see Fig. 6.56).
• Page 56
  6 Mounting 6.2 Transducers FLUXUS H721 6.2.2.6 Mounting with PermaLok Scope of delivery 2 × PermaLok 1 × transducer pair 4 × quick release clasp with tension strap Fig. 6.58: PermaLok components 1 – cover 2 – screw 3 – nut 4 –…
• Page 57
  6 Mounting FLUXUS H721 6.2 Transducers Mounting When measuring in diagonal arrangement, the transducer mounting fixtures are mounted on opposite sides of the pipe, see Fig. 6.59. When measuring in reflection arrangement, the transducer mounting fixtures are mounted on the same side of the pipe, see Fig.
• Page 58
  6 Mounting 6.2 Transducers FLUXUS H721 Step 2: Fixation of the rail to the pipe • Insert the tension strap through the slot of the tension strap clamp (if present, see Fig. 6.62) or through the rail fixture, see Fig. 6.63.
• Page 59
  6 Mounting FLUXUS H721 6.2 Transducers Step 3: Mounting of the transducers in the mounting fixture PermaLok • Stick coupling foil (or apply some coupling compound for a short-term installation) on the contact surface of the transducer. The coupling foil can be fixed to the contact surface with a small amount of coupling compound.
• Page 60
  6 Mounting 6.2 Transducers FLUXUS H721 6.2.2.7 Mounting with tension strap and quick release clasp Caution! The edge of the tension strap is very sharp. Risk of injury. → Debur sharp edges. → Wear the required personal protective equipment. → Observe the applicable rules.
• Page 61
  6 Mounting FLUXUS H721 6.2 Transducers 6.2.2.8 Fixation of PermaLok with solid band strap kit • Cut the tension strap to length (pipe circumference + at least 305 mm). • Insert the solid band through the slot of the tension strap clamp.
• Page 62
  6 Mounting 6.2 Transducers FLUXUS H721 • Hold the tabs of the clip using pliers and pull the solid band completely through the slot of the clip, see Fig. 6.73. • Bend the end of the solid band back over the set of teeth, see Fig. 6.74.

• Page 63: Temperature Probe

  6 Mounting FLUXUS H721 6.3 Temperature probe Temperature probe Mounting 6.3.1 Pipe preparation Caution! Contact with grinding dust This may result in injuries (e.g., breathing difficulties, skin reactions, eye irritations). → Wear the required personal protective equipment. → Observe the applicable rules.

• Page 64
  FLUXUS H721 Fig. 6.77: Clasp Fig. 6.78: Temperature probe on the pipe 6.3.2.2 Installation with FLEXIM clasp Caution! The edge of the tension strap is very sharp. Risk of injury! → Debur sharp edges. → Wear the required personal protective equipment.
• Page 65
  6 Mounting FLUXUS H721 6.3 Temperature probe 6.3.2.3 Installation with quick release clasp Caution! The edge of the tension strap is very sharp. Risk of injury! → Debur sharp edges. → Wear the required personal protective equipment. → Observe the applicable rules.

• Page 66: Connection

  7 Connection FLUXUS H721 Connection Danger! Risk of explosion when using the measuring equipment in explosive atmospheres (ATEX, IECEx) This may result in personal or material damage or dangerous situations. → Observe the «Safety instructions for the use in explosive atmospheres» (see document SIFLUXUS).

• Page 67: Transducers

  7 Connection FLUXUS H721 7.1 Transducers Transducers It is recommended to run the cables from the measuring point to the transmitter before connecting the transducers to avoid load on the connectors. Notice! If transducers are replaced or added, the SENSPROM has to be replaced or added as well.

• Page 68
  7 Connection 7.1 Transducers FLUXUS H721 Fig. 7.2: Connection of the transducer cable with SMB connectors to the transmitter NEXT DISP SNAP DISP 3x Q FAST MODE X_AV X_AR X_BV X_BR 1 – SMB connector 2 – cable gland 7.1.1.2 Transducer cable with plastic jacket and stripped ends •…
• Page 69
  7 Connection FLUXUS H721 7.1 Transducers Fig. 7.3: Connection of the transducer cable with plastic jacket and stripped ends to the transmitter NEXT DISP SNAP DISP 3x Q FAST MODE cable gland X_AV X_AR X_BV X_BR 1 – cap nut 2 –…
• Page 70
  7 Connection 7.1 Transducers FLUXUS H721 Fig. 7.4: Connection of the transducer cable with stainless steel conduit and stripped ends to the transmitter NEXT DISP SNAP DISP 3x Q FAST MODE X_AV X_AR X_BV X_BR 1 – cable gland 7.1.2 Connection of the extension cable to the transmitter The extension cable is connected to the transmitter via the transducer connection.
• Page 71
  7 Connection FLUXUS H721 7.1 Transducers Fig. 7.5: Connection of the extension cable to the transmitter NEXT DISP SNAP DISP 3x Q FAST MODE cable gland X_AV X_AR X_BV X_BR 1 – cap nut 2 – compression part 3 – basic part 4 –…
• Page 72
  7 Connection 7.1 Transducers FLUXUS H721 Fig. 7.6: Connection of the transducer cable with SMB connectors 1 – SMB connector 2 – cable gland 7.1.3.2 Transducer cable with plastic jacket and stripped ends • Remove the blind plug for the connection of the transducer cable.
• Page 73
  7 Connection FLUXUS H721 7.1 Transducers Fig. 7.7: Connection of the transducer cable with plastic jacket and stripped ends cable gland 1 – cap nut 2 – compression part 3 – basic part 4 – external shield, brushed back 7.1.3.3 Transducer cable with stainless steel conduit and stripped ends •…
• Page 74
  7 Connection 7.1 Transducers FLUXUS H721 Fig. 7.8: Connection of the transducer cable with stainless steel conduit and stripped ends 1 – cable gland 7.1.4 Connection of the extension cable to the junction box 7.1.4.1 Connection without potential separation (standard) The connection of the extension cable to the junction box without potential separation ensures that the transducer, junction box and transmitter are on the same potential.
• Page 75
  7 Connection FLUXUS H721 7.1 Transducers Tab. 7.8: Terminal assignment terminal connection (extension cable) white or marked cable (core) white or marked cable (internal shield) brown cable (internal shield) brown cable (core) cable gland external shield Fig. 7.9: Connection of the extension and transducer cable to the junction box cable gland 1 –…
• Page 76
  7 Connection 7.1 Transducers FLUXUS H721 7.1.4.2 Connection with potential separation If earthing on the same potential cannot be ensured, e.g., in measurement arrangements with long extension cables, the extension cable and the junction box have to be electrically insulated from each other. The junction box and the transducers have to be on the same potential.
• Page 77
  7 Connection FLUXUS H721 7.1 Transducers Fig. 7.10: Connection of the extension and transducer cable to the junction box cable gland 1 – extension cable 2 – external shield 3 – shield terminal 4 – cap nut 5 – compression part 6 –…
• Page 78
  7 Connection 7.1 Transducers FLUXUS H721 7.1.5 SENSPROM The SENSPROM contains important transducer data for the operation of the transmitter with the transducers. If transducers are replaced or added, the SENSPROM has to be replaced or added as well. Notice! The serial numbers of the SENSPROM and the transducer have to be identical.

• Page 79: Power Supply

  7 Connection FLUXUS H721 7.2 Power supply Power supply Connection The installation of the power supply is carried out by the operator. The operator has to provide an overcurrent protector (fuse or similar device) disconnecting all energizing wires in case of an inadmissible high current consumption. The impedance of the protective earth has to be low ohmic in order not to allow touch voltage pass the permissible limit.

• Page 80
  7 Connection 7.2 Power supply FLUXUS H721 Tab. 7.10: Terminal assignment terminal connection AC connection DC earth earth N(-) neutral L(+) phase 100…230 V AC, 50…60 Hz fuse 1 A, time-lag 1.6 A, time-lag 7.2.1 Cable connection Transmitter with stainless steel housing •…

• Page 81: Outputs

  7 Connection FLUXUS H721 7.3 Outputs Fig. 7.15: Cable gland for aluminum housing 1 – cap nut 2 – compression part 3 – basic part Outputs Important! The max. permissible voltage between the outputs and against PE is 60 V DC (permanent).

• Page 82
  7 Connection 7.3 Outputs FLUXUS H721 Tab. 7.11: Output circuits output transmitter external circuit explanation internal circuit connection passive current output/HART current output = 8…30 V > 0.024 A [Ω] + 8 V example: = 30 V ≤ 900 Ω…
• Page 83
  7 Connection FLUXUS H721 7.3 Outputs Tab. 7.11: Output circuits output transmitter external circuit explanation internal circuit connection binary output (optorelay) circuit 1 ≤ 26 V TF7- ≤ 100 mA *721**-******-******a-*****-** [kΩ] = U [mA] a = U, V, D…

• Page 84: Inputs

  7 Connection 7.4 Inputs FLUXUS H721 Tab. 7.11: Output circuits output transmitter external circuit explanation internal circuit connection digital output circuit 1 = 5…30 V TF7- < 100 mA *72***-******-******a-*****-** [kΩ] = U [mA] a = M, P, Q circuit 2 RS485 120 Ω…

• Page 85
  7 Connection FLUXUS H721 7.4 Inputs 7.4.1 Current input An active (self-powered) or a passive (external powered) current source can be connected to the current inputs of the transmitter. Connection of an active current source Important! The terminals Txa and Txb must not be connected.
• Page 86
  7 Connection 7.4 Inputs FLUXUS H721 7.4.2 Binary input The transmitter can be equipped with max. 4 binary inputs. Binary inputs can process measured values with short pulse. Via the binary inputs, it is possible to remotely trigger some functions of the transmitter.

• Page 87: Temperature Probe

  7 Connection FLUXUS H721 7.5 Temperature probe Temperature probe Connection It is possible to connect the temperature probes Pt100/Pt1000 (4-wire) to the inputs of the transmitter (optional). Fig. 7.18: Connection of the temperature probes to the transmitter NEXT DISP SNAP…

• Page 88
  7 Connection 7.5 Temperature probe FLUXUS H721 7.5.1 Direct connection of the temperature probe • Remove the blind plug for the connection of the temperature probe. • Open the cable gland of the temperature probe. The compression part remains in the cap nut.
• Page 89
  7 Connection FLUXUS H721 7.5 Temperature probe 7.5.2 Connection with extension cable • Remove the blind plug for the connection of the temperature probe. • Open the cable gland of the extension cable. The compression part remains in the cap nut.
• Page 90
  7 Connection 7.5 Temperature probe FLUXUS H721 Fig. 7.21: Preparation of the extension cable 110 mm 7 mm 1 – cap nut 2 – compression part 3 – basic part 4 – reducer 5 – external shield, brushed back 6 – sealing ring side Fig.

• Page 91: Service Interfaces

  7 Connection FLUXUS H721 7.6 Service interfaces Service interfaces Connection 7.6.1 USB interface The transmitter can be connected directly to the PC via the USB interface. • Connect the USB cable to the USB interface of the transmitter and to the PC.

• Page 92
  7 Connection 7.6 Service interfaces FLUXUS H721 Fig. 7.25: Cable gland 1 – cap nut 2 – compression part 3 – basic part 4 – sealing ring (only for cable gland M20, not for cable gland 1/2 NPS) 5 – housing wall 6 –…
• Page 93
  7 Connection FLUXUS H721 7.6 Service interfaces Fig. 7.27: Cable gland 1 – cap nut 2 – compression part 3 – basic part • Push the cable through the cap nut, compression part and basic part of the cable gland.

• Page 94: Start-Up

  8 Start-up FLUXUS H721 Start-up Danger! Risk of explosion when using the measuring equipment in explosive atmospheres (ATEX, IECEx) This may result in personal or material damage or dangerous situations. → Observe the «Safety instructions for the use in explosive atmospheres» (see document SIFLUXUS).

• Page 95: Start-Up Settings

  8 Start-up FLUXUS H721 8.1 Start-up settings Start-up settings When starting up the transmitter for the first time, the following settings are required: • language • time/date • unit of measurement These displays will only be indicated when the transmitter is switched on for the first time or after an initialization.

• Page 96: Status Indications

  8 Start-up 8.3 Status indications FLUXUS H721 Status indications The operation state is indicated by LEDs. Fig. 8.1: Command panel of the transmitter NEXT DISP SNAP DISP 3x Q FAST MODE X_AV X_AR X_BV X_BR 1 – LED (channel A) 2 –…

• Page 97: Program Branches

  8 Start-up FLUXUS H721 8.4 Program branches Program branches The following schema shows the program branches. For a detailed overview of the menu structure see annex A. Parameters Measurement Options Special functions Selection of a measuring channel Selection of measuring channels…

• Page 98: Date And Time

  8 Start-up 8.7 Date and time FLUXUS H721 Initial settings If Yes is selected, the following setting dialogs will be displayed. •Language •Date/time •Units of measurement •Delete meas. values •Delete snaps • Delete user subst. (all customized materials and fluids which were stored after delivery will be deleted) •Reset totalizers…

• Page 99: Measurement

  9 Measurement FLUXUS H721 9.1 Enabling the HPI measuring mode Measurement Danger! Risk of explosion when using the measuring equipment in explosive atmospheres (ATEX, IECEx) This may result in personal or material damage or dangerous situations. → Observe the «Safety instructions for the use in explosive atmospheres» (see document SIFLUXUS).

• Page 100
  9 Measurement 9.1 Enabling the HPI measuring mode FLUXUS H721 Example global inputs: • reference temperature: 20 °C • reference pressure: 1 bar • channel: Y • source item: API gravity (recommended: = physical quantity) • method for volume correction (see Tab. 9.1 and Tab. 9.2): …
• Page 101
  9 Measurement FLUXUS H721 9.1 Enabling the HPI measuring mode Assignment of a source item Special functionsMeasurementMeasurement modes…Source item • Select the source item (recommended: = physical quantity) whose measured value, status value or event value is to be displayed.
• Page 102
  9 Measurement 9.1 Enabling the HPI measuring mode FLUXUS H721 Selection of the CPL calculation Correction of the pressure influence on the fluid. The following table provides an overview of the selectable calculation types. Tab. 9.2: CPL calculation CPL calculation explanation calculation according to section 11.2.1 of the MPMS (Manual of Petroleum Measurement…
• Page 103
  9 Measurement FLUXUS H721 9.1 Enabling the HPI measuring mode Special functionsMeasurementMeasurement modes…min. The range of the source item for each fluid has to be entered. The ranges must not overlap. • Enter the min. value of the selected source item.

• Page 104: Parameter Input

  9 Measurement 9.2 Parameter input FLUXUS H721 Parameter input Notice! Avoid a simultaneous parameter entry via the keyboard and the USB, LAN or process interface. The parameter records received via these interfaces will overwrite the current transmitter parameterization. The pipe and fluid parameters are entered for the selected measuring point.

• Page 105
  9 Measurement FLUXUS H721 9.2 Parameter input ParametersConnected transd. The parameters can also be entered without connected transducers or SENSPROM. • Select the list item Connected transd. • Press ENTER. The display Transducer not found will be indicated if neither transducers nor SENSPROM are connected.
• Page 106
  9 Measurement 9.2 Parameter input FLUXUS H721 Sound speed of the pipe material ParametersPipe materialOther materialc material • Enter the sound speed of the pipe material. Notice! There are 2 sound speeds for pipe materials: the longitudinal and the transversal one. Enter the sound speed which is nearer to 2500 m/s.
• Page 107
  9 Measurement FLUXUS H721 9.2 Parameter input Sound speed of the lining material ParametersLining materialOther materialc material • Enter the sound speed of the lining material. Notice! For pipe materials there are 2 sound speeds, the longitudinal and the transversal one. Enter the sound speed which is nearer to 2500 m/s.
• Page 108
  9 Measurement 9.2 Parameter input FLUXUS H721 9.2.3 Input of fluid parameters Fluid Notice! If the HPI measuring mode has been enabled, a fluid has to be selected. ParametersFluid • Select the fluid from the scroll list. • If the fluid is not in the scroll list, select the list item Other fluid.

• Page 109: Measurement Settings

  9 Measurement FLUXUS H721 9.3 Measurement settings Measurement settings • Select the program branch Options. • Press ENTER. Options Channel x OptionsChannel A • Select the channel for which a physical quantity has to be Measurement Units of measurement entered (here: Channel A) •…

• Page 110
  9 Measurement 9.3 Measurement settings FLUXUS H721 9.3.4 Dynamic damping If dynamic damping is activated, volatile changes in the measured values of the selected physical quantity are transmitted through the transmitter without any time lag. Important! The dynamic damping will only have impact on the selected physical quantity. All other physical quantities are not dynamically damped.
• Page 111
  9 Measurement FLUXUS H721 9.3 Measurement settings 9.3.6 Configuration of an output If the transmitter is equipped with outputs, they have to be configured. The measured value, the status value or an Options event value can be transmitted via the different outputs.
• Page 112
  9 Measurement 9.3 Measurement settings FLUXUS H721 Tab. 9.3: Configuration of the outputs source item list item output flow velocity Flow quantities Flow velocity standard volumetric flow rate Norm vol. flow rate operating volumetric flow rate Operation vol. flow mass flow rate…
• Page 113
  9 Measurement FLUXUS H721 9.3 Measurement settings Tab. 9.3: Configuration of the outputs source item list item output scale value that derives from the density at standard conditions HPI measurement API gravity absolute change of the HPI property per set time base for the fluid change Δ…
• Page 114
  9 Measurement 9.3 Measurement settings FLUXUS H721 9.3.6.1 Output of a measured value • Select the list item OptionsOutputs…Values. • Press ENTER. Source item Output range Values OptionsChannel AOutputs…Output range Output range Error value • Select a list item. Measuring range –…
• Page 115
  9 Measurement FLUXUS H721 9.3 Measurement settings Tab. 9.5: Examples for the error output (output range: 4…20 mA) list item output signal Last value I [mA] 20.0 mA I [mA] Other value I [mA] error value = 3.5 mA Measuring range The sign of the measured value and the measuring range are determined.
• Page 116
  9 Measurement 9.3 Measurement settings FLUXUS H721 Terminal assignment OptionsChannel AOutputs…Output info The terminals for the connection of the output are displayed. By pressing further information is displayed. • Press ENTER. Output function test The function of the output can now be tested.
• Page 117
  9 Measurement FLUXUS H721 9.3 Measurement settings Example number of fluids to be detected: 4 output via current output: I1 source item: HPI measurement list item: Current fluid output: Values output range: 4…20 mA error current: 3.5 mA → no API calculation feasible When detecting the fluid, the following values are output via the current output: fluid 0: 4 mA →…
• Page 118
  9 Measurement 9.3 Measurement settings FLUXUS H721 Output function test The function of the output can now be tested. • Connect an external measuring instrument to the terminals of the output. OptionsChannel AOutputs…Test signal • Select Yes to test the output. Select No to display the next menu item.

• Page 119: Start Of The Measurement

  9 Measurement FLUXUS H721 9.4 Start of the measurement 9.3.6.3 Switchable current outputs If the transmitter has switchable current outputs, it has to be defined how to switch them. Special functions • Select the menu item Current output in the program branch Special functions.

• Page 120
  9 Measurement 9.4 Start of the measurement FLUXUS H721 Input of the measuring point number MeasurementMeasuring point no. • Enter the number of the measuring point. • Press ENTER. For the activation of text input see Special functionsDialogs/MenusMeasuring point no.
• Page 121
  9 Measurement FLUXUS H721 9.4 Start of the measurement Tab. 9.6: Diagnostic values display explanation line 1 of the display c, G measured sound speed of the fluid and signal amplification scroll with SCNR signal-to-correlated noise ratio signal-to-noise ratio signal quality…

• Page 122: Field Calibration

  9 Measurement 9.5 Field calibration FLUXUS H721 Tab. 9.8: Max. permissible deviation between the recommended and entered transducer distance transducer frequency (3rd max. difference between the recommended and entered transducer distance [mm] character of the technical type) shear wave transducer Lamb wave transducer -60…+120…

• Page 123
  9 Measurement FLUXUS H721 9.5 Field calibration Stop measurement • Press during the measurement. The following display appears: Fig. 9.4: Scroll list in the program branch Measurement • Select Stop measurement. • Press ENTER. The measurement is stopped. Input of the reference value •…

• Page 124: Display Of Measured Values

  9 Measurement 9.6 Display of measured values FLUXUS H721 Auto activation • Select the list item Auto activation. • Select On if the offset of the sound speed obtained during the field calibration is to be used for the calculation of the HPI physical quantity.

• Page 125
  9 Measurement FLUXUS H721 9.6 Display of measured values Status line Important information of the running measurement is summarized in the status line. The quality and precision of the measurement can be evaluated. Press during the measurement to scroll to the status line.
• Page 126
  9 Measurement 9.6 Display of measured values FLUXUS H721 Transducer distance By pressing during the measurement, it is possible to scroll to the display of the transducer distance. Fig. 9.7: Display of the transducer distance 1 – transducer distance The recommended transducer distance will be displayed in brackets, the measured transducer distance will be displayed afterwards.

• Page 127: Display Of Parameters

  9 Measurement FLUXUS H721 9.7 Display of parameters Display of parameters The parameters can be displayed during the measurement. • Press during the measurement. The following display appears: Fig. 9.9: Scroll list in the program branch Measurement 1 – status indication The measurement is running in the background.

• Page 128: Repeated Display Of Measured Values

  9 Measurement 9.8 Repeated display of measured values FLUXUS H721 Repeated display of measured values • Select the program branch Measurement to return to the measured value display. • Press ENTER. The following display appears: Fig. 9.11: Scroll list in the program branch Measurement MeasurementShow measurement •…

• Page 129
  9 Measurement FLUXUS H721 9.9 Execution of special functions display description reset the totalizer to zero Reset totalizers display the measured value of the totalizer for several seconds Freeze display reset the totalizer error Fehler zurücksetzen stop totalizer and reset it to zero…

• Page 130: Stop Of The Measurement

  9 Measurement 9.10 Stop of the measurement FLUXUS H721 9.10 Stop of the measurement • Press during the measurement. The following display appears: Fig. 9.12: Scroll list in the program branch Measurement MeasurementStop measurement • Select Stop measurement. • Press ENTER.

• Page 131: Troubleshooting

  10 Troubleshooting FLUXUS H721 Troubleshooting Danger! Risk of explosion when using the measuring equipment in explosive atmospheres (ATEX, IECEx) This may result in personal or material damage or dangerous situations. → Observe the «Safety instructions for the use in explosive atmospheres» (see document SIFLUXUS).

• Page 132: Problems With The Measurement

  The signal is lost during the measurement. • If there is no measuring signal after the pipe had been run empty and refilled, contact FLEXIM. • Wait a moment until the acoustic contact is reestablished. The measurement can be interrupted due to a temporarily higher proportion of gas bubbles and solids in the fluid.

• Page 133: Measuring Point Selection

  10 Troubleshooting FLUXUS H721 10.2 Measuring point selection 10.2 Measuring point selection • Make sure that the recommended min. distance to any disturbance is observed. • Avoid measuring points with deposit formation in the pipe. • Avoid measuring points in the vicinity of deformations and defects on the pipe as well as welds.

• Page 134: Problems With The Totalizers

  10 Troubleshooting 10.6 Problems with the totalizers FLUXUS H721 10.6 Problems with the totalizers The values of the totalizers are too small. • One of the totalizers has reached the upper limit and has to be reset to zero manually.

• Page 135: Maintenance And Cleaning

  11 Maintenance and cleaning FLUXUS H721 Maintenance and cleaning Danger! Risk of explosion when using the measuring equipment in explosive atmospheres (ATEX, IECEx) This may result in personal or material damage or dangerous situations. → Observe the «Safety instructions for the use in explosive atmospheres» (see document SIFLUXUS).

• Page 136: Maintenance

  11 Maintenance and cleaning 11.1 Maintenance FLUXUS H721 11.1 Maintenance The transmitter and the transducers are practically maintenance-free. In order to ensure security, the following maintenance intervals are recommended: Tab. 11.1: Recommended maintenance intervals item maintenance step interval measure stainless steel housing…

• Page 137: Dismounting And Disposal

  12 Dismounting and disposal FLUXUS H721 Dismounting and disposal Danger! Risk of explosion when using the measuring equipment in explosive atmospheres (ATEX, IECEx) This may result in personal or material damage or dangerous situations. → Observe the «Safety instructions for the use in explosive atmospheres» (see document SIFLUXUS).

• Page 138: Dismounting

  Batteries must be disposed of separately from electrical or electronic equipment. For this purpose, remove the batteries from the device and take them to the designated disposal system. The components are taken back free of charge by FLEXIM in accordance with national regulations. Contact FLEXIM. 2022-05-15, UMFLUXUS_H721V1-5EN…

• Page 139: User Modes

  13 User modes FLUXUS H721 User modes The user modes allow extended diagnostics of signals and measured values as well as the definition of additional Special functions parameters adapted to the application. The following user modes can be selected: System settings •StandardUser…

• Page 140: Standarduser Mode

  13 User modes 13.1 StandardUser mode FLUXUS H721 User mode selection Special functionsSystem settingsUser mode • Select the menu item User mode. • Press ENTER. • Select a list item. • Press ENTER. Special settings OptionsChannelSpecial settings • Select the measuring channel in the program branch Options.

• Page 141
  13 User modes FLUXUS H721 13.1 StandardUser mode 13.1.2 Turbulence mode In the presence of high turbulence, i.e., high Reynolds numbers or disturbed flow profiles due to short inlet and outlet lengths, there are large fluctuations in the transit time of the ultrasonic signals, resulting in poor signal quality (e.g., reduction in signal amplitude, increase in gain).

• Page 142: Expertuser Mode

  13 User modes 13.2 ExpertUser mode FLUXUS H721 OptionsSpecial settingsMulti-point calibrationBidirectional use • Select Yes to apply the calibration curve for negative flow velocities as well. Select No if it is not to be used for negative flow velocities. 13.1.4 Start in measuring mode For some application it is necessary to start the measurement in a particular measuring mode.

• Page 143
  13 User modes FLUXUS H721 13.2 ExpertUser mode OptionsSpecial settings+Flow velocity limit • Enter a limit of the flow velocity for the measurement in flow direction. • Press ENTER. If the flow velocity is higher than this limit, it will be marked as invalid. The physical quantity cannot be determined. UNDEF will be displayed.
• Page 144
  13 User modes 13.2 ExpertUser mode FLUXUS H721 13.2.3 Pipe signal detection When evaluating the plausibility of the signal, it is checked whether the sound speed is within a defined range. The absolute threshold of the fluid sound speed used is calculated from the greatest of the following values: •…
• Page 145
  13 User modes FLUXUS H721 13.2 ExpertUser mode Selection of the version Special functionsMeasurementMeasurement settingsProfile correction • Select the menu item Measurement settings in the program branch Special functions. • Press ENTER until the menu item Profile correction is displayed.

• Page 146: Superuser Mode And Superuser Ext. Mode

  13 User modes 13.3 SuperUser mode and SuperUser ext. mode FLUXUS H721 13.2.5 Advanced diagnosis There are further diagnostic values available for the calculation channels. These can either be transmitted via the outputs of the transmitter or defined as source of the event trigger.

• Page 147
  13 User modes FLUXUS H721 13.3 SuperUser mode and SuperUser ext. mode 13.3.3 Linear calibration It is possible to define a correction of the flow velocity: = m · v + n where – measured flow velocity – factor, range: -2…+2 –…
• Page 148
  13 User modes 13.3 SuperUser mode and SuperUser ext. mode FLUXUS H721 13.3.4 Weighting factor The weighting factor is used for transducers installed on the same pipe in order to compensate differences between the measured values of the flow velocity of different channels.

• Page 149: Outputs (Tf7-*721**-******-******A-*****-**; A = U, V, D)

  14 Outputs (TF7-*721**-******-******a-*****-**; a = U, V, D) FLUXUS H721 14.1 Configuration of a binary output Outputs (TF7-*721**-******-******a-*****-**; a = U, V, D) If the transmitter is equipped with outputs, they have to be configured. For the configuration of the analog output, see Options section 9.3.6.

• Page 150
  14 Outputs (TF7-*721**-******-******a-*****-**; a = U, V, D) 14.1 Configuration of a binary output FLUXUS H721 Assignment of a source item OptionsChannel AOutputs…Source item Depending on the selected source item, status or event values can be output. Tab. 14.1: Output of status values or event values…

• Page 151: Activation Of A Binary Output As Pulse Output

  14 Outputs (TF7-*721**-******-******a-*****-**; a = U, V, D) FLUXUS H721 14.2 Activation of a binary output as pulse output OptionsChannel AOutputs…B1 Enter test value • Select On to test the energized state of the output. • Press ENTER. The value has to be low ohmic.

• Page 152: Activation Of A Frequency Output As Pulse Output

  14 Outputs (TF7-*721**-******-******a-*****-**; a = U, V, D) 14.3 Activation of a frequency output as pulse output FLUXUS H721 OptionsChannel AOutputsBinary B1Source itemPulsePulse value • Enter the pulse value. The unit of measurement will be displayed according to the actual physical quantity.

• Page 153
  14 Outputs (TF7-*721**-******-******a-*****-**; a = U, V, D) FLUXUS H721 14.3 Activation of a frequency output as pulse output Terminal assignment Options…Frequency F1…Output info The terminals for the connection of the output are displayed. By pressing further information is displayed.

• Page 154: Outputs (Tf7-*72***-******-******A-*****-**; A = M, P, Q)

  15 Outputs (TF7-*72***-******-******a-*****-**; a = M, P, Q) 15.1 Configuration of a digital output as binary output FLUXUS H721 Outputs (TF7-*72***-******-******a-*****-**; a = M, P, Q) If the transmitter is equipped with outputs, they have to be configured. For the configuration of the analog output, see Options section 9.3.6.

• Page 155
  15 Outputs (TF7-*72***-******-******a-*****-**; a = M, P, Q) FLUXUS H721 15.1 Configuration of a digital output as binary output OptionsChannel AOutputsDigital output B1Enable B1 • Select Yes to change the settings for an already assigned output or to assign a new output.
• Page 156
  15 Outputs (TF7-*72***-******-******a-*****-**; a = M, P, Q) 15.1 Configuration of a digital output as binary output FLUXUS H721 Output function test The function of the output can now be tested. • Connect a multimeter to the output. OptionsChannel AOutputs…B1 Test signal •…

• Page 157: Configuration Of A Digital Output As Pulse Output

  15 Outputs (TF7-*72***-******-******a-*****-**; a = M, P, Q) FLUXUS H721 15.2 Configuration of a digital output as pulse output Tab. 15.5: Output function test – measuring range list item switching function test value description • binary output is energized Status OK…

• Page 158
  15 Outputs (TF7-*72***-******-******a-*****-**; a = M, P, Q) 15.2 Configuration of a digital output as pulse output FLUXUS H721 Tab. 15.6: Selection of the physical quantity source item list item output Pulse Pulse |V| pulse without considering the sign of the…
• Page 159
  15 Outputs (TF7-*72***-******-******a-*****-**; a = M, P, Q) FLUXUS H721 15.2 Configuration of a digital output as pulse output 15.2.2 Pulse output by defining pulses per unit OptionsChannel AOutputsDigital output B1Source itemPulsePulse output • Select Pulses per unit. • Press ENTER.

• Page 160: Configuration Of A Digital Output As Frequency Output

  15 Outputs (TF7-*72***-******-******a-*****-**; a = M, P, Q) 15.3 Configuration of a digital output as frequency output FLUXUS H721 Tab. 15.7: Output function test – signal output mode test value description The entered test value has to be If the external measuring instrument displays the entered Pulses per unit within the output range.

• Page 161: Inputs

  16 Inputs FLUXUS H721 16.1 Configuration of an input Inputs The inputs are configured in the program branch Special functions and assigned to the individual measuring channels in the program branch Options. 16.1 Configuration of an input If the transmitter is equipped with inputs, they have to be configured.

• Page 162
  16 Inputs 16.1 Configuration of an input FLUXUS H721 Measuring range Special functionsInputs…Start of meas. range • Enter the lowest expected measured value. The unit of measurement of the source item will be displayed. Start of meas. range is the physical quantity assigned to the lower limit of the input range (Input MIN).
• Page 163
  16 Inputs FLUXUS H721 16.1 Configuration of an input 16.1.3 Definition of a switching condition If a transmitter function is to be performed by remote control, a switching condition has to be defined. Special functionsInputs…Trigger value • Select Yes if a switching condition is to be defined. Select No to display the next menu item.
• Page 164
  16 Inputs 16.1 Configuration of an input FLUXUS H721 16.1.4 Binary inputs The transmitter can be equipped with max. 4 binary inputs. Via the binary inputs, it is possible to remotely trigger some functions of the transmitter. Inversion of the input Special functionsInputsBinary BxNegate input •…

• Page 165: Assignment Of An Input

  16 Inputs FLUXUS H721 16.2 Assignment of an input Binary input • Connect the signal source to the input. Special functionsInputs…I1 Test signal • Select Yes to test the input signal. Select No to display the next menu item. • Press ENTER.

• Page 166: Data Logger

  17 Data logger 17.1 Configuration of the data logger FLUXUS H721 Data logger The transmitter has a data logger which stores the measured values during the measurement. Special functions Data logger Notice! In order to store measured data, the data logger has Configuration to be configured.

• Page 167
  17 Data logger FLUXUS H721 17.1 Configuration of the data logger display description The storing starts immediately. Immediately The storing starts in the next full 5 minutes. Full 5 minutes The storing starts in the next full 10 minutes. Full 10 minutes The storing starts in the next full 15 minutes.
• Page 168
  17 Data logger 17.1 Configuration of the data logger FLUXUS H721 Special functionsData loggerConfigurationStart storingEvent-based Storage rate (trig.) • Select in the scroll list a storage rate for storing the measured values in case the event occurs. • Press ENTER.
• Page 169
  17 Data logger FLUXUS H721 17.1 Configuration of the data logger Ringbuffer Special functionsData loggerConfigurationRingbuffer The data logger can be configured as linear logger or ringbuffer. If the ringbuffer is deactivated and the data logger is full, the storing of measured values will be terminated. It can be continued after clearing the data logger. If the ringbuffer is activated and the data logger is full, the oldest measured values will be overwritten.

• Page 170: Deletion Of The Data Logger

  17 Data logger 17.2 Deletion of the data logger FLUXUS H721 17.2 Deletion of the data logger Special functionsData loggerDelete meas. values • Select the menu item Delete meas. values. • Press ENTER. • Select Yes or No. • Press ENTER.

• Page 171: Data Transmission

  18 Data transmission FLUXUS H721 18.1 Service interfaces Data transmission The data is transmit via the service interfaces or the process interface (optional) of the transmitter. 18.1 Service interfaces By means of the program FluxDiagReader it is possible to transmit via service interfaces (USB, LAN) data to the PC.

• Page 172: Process Interface

  18 Data transmission 18.2 Process interface FLUXUS H721 18.2 Process interface The transmitter can be equipped with a process interface (e.g., Profibus, Modbus). For the connection of the process interface to the transmitter see supplement to operating instruction. RS485 interface Special functionsCommunicationRS485 •…

• Page 173: Advanced Functions

  19 Advanced functions FLUXUS H721 19.1 Totalizers Advanced functions 19.1 Totalizers The total volume or total mass of the fluid at the measuring point can be determined. There are 2 totalizers, one for the positive and the other for the negative flow direction. The unit of measurement used for totalizing corresponds to the volume or mass unit selected for the physical quantity.

• Page 174
  19 Advanced functions 19.1 Totalizers FLUXUS H721 decimal places max. value max. display < 10 ±9999999999 < 10 ±99999999.9 < 10 ±9999999.99 < 10 ±999999.999 < 10 ±99999.9999 Notice! The number of decimal places and the max. value of the totalizers only affect the display.

• Page 175: Fastfood Mode

  19 Advanced functions FLUXUS H721 19.2 FastFood mode 19.1.4 Totalizer behavior after the measurement is stopped It is possible to define the totalizer behavior after the measurement is stopped or after a reset of the transmitter. Special functionsTotalizersKeep totalizers • Select the menu item Totalizers in the program branch Special functions.

• Page 176: Calculation Channels

  19 Advanced functions 19.3 Calculation channels FLUXUS H721 19.2.2 Storage rate of the FastFood mode The storage rate for the FastFood mode is entered during the configuration of the data logger in the menu item Storage rate FastF. Special functionsData loggerConfigurationStorage rate FastF •…

• Page 177
  19 Advanced functions FLUXUS H721 19.3 Calculation channels 19.3.2.1 Selection of the calculation type Tab. 19.2: Calculation types Average (all chan. OK) Average (1 chan. OK) Special mean with «AND» mean with «OR» Each channel selected for calculation can be assigned with a signed value.
• Page 178
  19 Advanced functions 19.3 Calculation channels FLUXUS H721 It is possible to define 2 cut-off flows for each calculation channel. They are entered in the unit of measurement of the physical quantity selected for the calculation channel. ParametersChannel YCalculation type+Cut-off flow •…
• Page 179
  19 Advanced functions FLUXUS H721 19.3 Calculation channels 19.3.5 Extended diagnostics Extended diagnostics is available for the calculation channels in the ExperUser, SuperUser and SuperUser ext. mode. It serves to detect errors on individual measuring channels. The values of the extended diagnostics can either be transmitted via the outputs of the transmitter or defined as source of the event triggers.
• Page 180
  19 Advanced functions 19.3 Calculation channels FLUXUS H721 Tab. 19.3: Source item Extended diagnostics source item list item output percentage of physical channels, with valid measuring state Extended diagnostics Valid channels standard deviation of the sound speed σ(Sound speed) standard deviation of the flow velocity σ(Flow velocity)

• Page 181: Diagnosis With The Help Of The Snap Function

  19 Advanced functions FLUXUS H721 19.4 Diagnosis with the help of the snap function 19.4 Diagnosis with the help of the snap function 19.4.1 Configuration By means of the snap function it is possible to store measuring parameters which are useful for the evaluation of measuring results or for diagnostic purposes.

• Page 182: Modification Of The Limit For The Inner Pipe Diameter

  19 Advanced functions 19.5 Modification of the limit for the inner pipe diameter FLUXUS H721 19.4.3 Information concerning snaps Special functionsSnapSnap info • Select the menu item Snap info. • Press ENTER. The following information is displayed: display description number of stored snaps…

• Page 183: Remote Functions

  19 Advanced functions FLUXUS H721 19.6 Remote functions 19.6 Remote functions Remote functions can be triggered by event triggers, triggerable analog inputs or binary inputs. Options In order to define an input for a remote function, it has to be Channel x enabled in the menu item Special functionsInputs.

• Page 184
  19 Advanced functions 19.6 Remote functions FLUXUS H721 Reset of measured values • Select the list item Reset meas. val.. • Press ENTER. The measured value output simulates a reposing application for the duration of the signal. The actual measured flow velocity is ignored and the measured value is set to zero.

• Page 185: Event Triggers

  19 Advanced functions FLUXUS H721 19.7 Event triggers Not for calculation This function enables the user to define an event-based channel selection for calculation channels. • Select the list item Not for calc. • Press ENTER. If the condition for the remote function is met, this measuring channel will not be calculated in the calculation channel. The measurement on the measuring channel continues running.

• Page 186
  19 Advanced functions 19.7 Event triggers FLUXUS H721 Tab. 19.4: Source item source item list item output totalizer for the volumetric flow rate in positive flow direction Totalizers Operating volume (+) totalizer for the volumetric flow rate in negative flow direction…
• Page 187
  19 Advanced functions FLUXUS H721 19.7 Event triggers Tab. 19.5: Properties of the event trigger property setting description The event trigger switches when the measured value exceeds the Function MAX (x>limit) (switching condition) upper limit. The event trigger switches when the measured value falls below the MIN (x<limit)
• Page 188
  19 Advanced functions 19.7 Event triggers FLUXUS H721 Example MAX (x>limit): 30 m Hysteresis: 1 m The event trigger is activated for measured values > 30.5 m /h and deactivated for measured values < 29.5 m OptionsEvent triggerRx EnableSource item…Range center •…
• Page 189
  19 Advanced functions FLUXUS H721 19.7 Event triggers 19.7.3 Event trigger during the measurement An event trigger with the switching condition MAX (x>limit), MIN (x<limit), Within range or Out of range is updated max. once per second to avoid a constant switching of the event trigger (in case the measured values fluctuate around the value of the switching condition).

• Page 190: Event Protocol

  19 Advanced functions 19.8 Event protocol FLUXUS H721 19.8 Event protocol If an error occurs, an error message will be displayed in the first line indicating the symbol . The error message can be displayed via the menu item Event log.

• Page 191: Settings

  20 Settings FLUXUS H721 20.1 Dialogs and menus Settings 20.1 Dialogs and menus Special functionsDialogs/Menus • Select the menu item Dialogs/Menus in the program branch Special functions. • Press ENTER. Pipe circumference Special functionsDialogs/MenusPipe circumference • Select the menu item Pipe circumference.

• Page 192
  20 Settings 20.1 Dialogs and menus FLUXUS H721 Error delay The error delay is the time after which an error value will be sent to an output if no valid measured values are available. Special functionsDialogs/MenusError delay • Press ENTER until the menu item Error delay is displayed.

• Page 193: Measuring Modes

  20 Settings FLUXUS H721 20.2 Measuring modes Toggle time The toggle time indicates the time interval after which the transmitter toggles between the different channels during the measurement. The default value is 3 s. Special functionsDialogs/MenusToggle time • Press ENTER until the menu item Toggle time is displayed.

• Page 194: Measurement Settings

  20 Settings 20.3 Measurement settings FLUXUS H721 20.3 Measurement settings Special functionsMeasurementMeasurement settings • Select the menu item Measurement in the program branch Special functions. • Press ENTER. • Select the menu item Measurement settings. • Press ENTER. Multi-point calibration A multi-point calibration allows a very precise output of measuring results.

• Page 195: Units Of Measurement

  20 Settings FLUXUS H721 20.4 Units of measurement 20.4 Units of measurement It is possible to set the global units of measurement for length, temperature, pressure, sound speed, density and kinematic viscosity. Special functionsUnits of measurement • Select the menu item Units of measurement.

• Page 196: Working With Parameter Records

  20 Settings 20.6 Working with parameter records FLUXUS H721 20.6 Working with parameter records 20.6.1 Introduction Parameter records are data sets that contain all information necessary to perform a certain measurement task: • pipe parameters • transducer parameters • fluid parameters •…

• Page 197: Contrast Settings

  20 Settings FLUXUS H721 20.7 Contrast settings 20.7 Contrast settings Special functionsSystem settingsDisplay contrast • Select the menu item System settings in the program branch Special functions. • Press ENTER. • Select the menu item Display contrast. • Press ENTER.

• Page 198: Key Lock

  20 Settings 20.9 Key lock FLUXUS H721 20.9 Key lock An ongoing measurement can be protected from an inadvertent intervention by means of a key lock. Definition of a key lock code • Select the menu item System settings in the program branch Special functions.

• Page 199: Annex

  Annex FLUXUS H721 A Menu structure Annex Menu structure Program branches Parameters Measurement Options Special functions Channel x Select channels Channel x System settings Transducer Measuring point no. Measurement Inputs Outer diameter Sound path Units of measurement Outputs Pipe material…

• Page 200
  Annex A Menu structure FLUXUS H721 Parameter input Parameters Channel x Transducer Connected transd. Select transducer Outer diameter Pipe material Pipe wall thickness Lining Lining 2 Coating Roughness Automatic Customized Fluid Fluid temp. Select analysis quant. → API gravity → Density →…
• Page 201
  Annex FLUXUS H721 A Menu structure HPI measuring mode Parameters Special functions Pipe parameters Measurement Fluid Measurement modes Fluid temp. HPI measurement Select analysis quant. Fluid decision Multi product API gravity Reference temp. Reference temp. Show range info Reference pressure…
• Page 202
  Annex A Menu structure FLUXUS H721 Measurement settings Options Channel x Measurement Units of measurement Physical quantity Flow velocity Volumetric flow rate → Volumetric flow rate → Mass flow rate → Sound speed Volume total → Flow velocity Mass flow rate…
• Page 203
  Annex FLUXUS H721 A Menu structure Data logger Special functions Data logger Configuration Delete meas. values Data logger info Logger channels Start storing → Activated: → Logger full: → Meas. val. series: → Occup. logger: Event-based → Immediately → Full 5 minutes →…
• Page 204
  Annex A Menu structure FLUXUS H721 Measurement start Parameters Measurement Select channels Measuring point no. Sound path Transducer distance For each Diagnostic values activated measuring channel Proposition of transducer distance Measurement Stop measurement Show measurement Show parameters Read-only mode 2022-05-15, UMFLUXUS_H721V1-5EN…
• Page 205
  Annex FLUXUS H721 A Menu structure Field calibration Measurement Options Channel x Channel x Measuring point no. Field calibration c Sound path Auto calibration Auto activation Edit samples Clear samples Proposition of transducer distance Default Display of diagnostic values Transducer distance…
• Page 206
  Annex A Menu structure FLUXUS H721 Configuration of outputs Options Special functions Channel x Current output Outputs Active Passive → Current → Voltage → Frequency → Binary … Enable Source item Sound speed Flow quantities Totalizers Fluid properties Diagnostic values…
• Page 207
  Annex FLUXUS H721 A Menu structure Configuration of inputs Special functions Inputs → Temperature → Current → Voltage → Binary Temperature Enable Tx Pt100/Pt1000 Temperature offset → Temperature Trigger value Function → Within range → MAX (x>limit) → Out of range →…
• Page 208
  Annex A Menu structure FLUXUS H721 Configuration of inputs Special functions Current Inputs Enable Ix → Temperature → Current → Voltage → Binary Source item Customized Current → Temperature → Pressure → Density Input name → Kin. viscosity → Dyn. viscosity…
• Page 209
  Annex FLUXUS H721 A Menu structure Configuration of inputs Special functions Voltage Inputs Enable Ux → Temperature → Current → Voltage → Binary Source item Customized Voltage → Temperature → Pressure → Density Input name → Kin. viscosity → Dyn. viscosity…
• Page 210
  Annex A Menu structure FLUXUS H721 Special settings Options Channel x Pipe signal detection Special settings Default Customized Cut-off flow LWT pipe wall calibr. Default Customized Default Flow velocity limit Linear calibration Default Customized Default Pig detection Profile correction Global settings…
• Page 211
  Annex FLUXUS H721 A Menu structure Calculation channels Parameters Options Channel x Channel x Calculation Measurement Units of measurement Calculation type Physical quantity Flow velocity Average (all chan. OK) Average (1 chan. OK) Special Volumetric flow rate (AND) (OR) → Volumetric flow rate →…
• Page 212
  Annex A Menu structure FLUXUS H721 Results – overview Trigger Input quantities Physical quantities Special functions Options → Temperature → Flow quantities → Current → Sound speed → Voltage → Totalizers → Binary → Fluid properties → Diagnostic values Condition Event trigger →…
• Page 213
  Annex FLUXUS H721 A Menu structure Definition of event triggers Options Channel x Event trigger Select Rx Enable Rx Source item Sound speed Flow quantities Totalizers Fluid properties Diagnostic values Miscellaneous Function → MAX (x>limit) → MIN (x<limit) → Within range →…
• Page 214
  Annex A Menu structure FLUXUS H721 Remote functions Trigger Special functions Options Inputs Channel x Condition Event trigger Temperature Current Voltage Binary Enable Enable Enable Enable Select Rx Pt100/Pt1000 Source item Source item Negate input Enable Rx Source item → Yes →…
• Page 215
  Annex FLUXUS H721 A Menu structure Event-based storing of measured values Trigger Special functions Options Inputs Channel x Condition Event trigger Temperature Current Voltage Binary Enable Enable Enable Enable Select Rx Pt100/Pt1000 Source item Source item Negate input Enable Rx Source item →…
• Page 216
  Annex A Menu structure FLUXUS H721 Example 1 The diagnostic values are to be checked. If the SCNR is < 20 dB, a snap has to be triggered. Trigger: SCNR ˂ 20 dB Condition: R1 with SCNR < 20 dB…
• Page 217
  Annex FLUXUS H721 A Menu structure Example 2 The storage rate of all measured and diagnostic values of a certain temperature range is to be changed. The normal storage rate of all measured and diagnostic values is 1 h. If the temperature is outside the defined range of 20…40 °C, the storage rate should be 1 min.
• Page 218
  Annex A Menu structure FLUXUS H721 Example 3 The flow velocity is measured. If the flow velocity is ≤ 5 m/s, the transmitter measures in the TransitTime mode. As long as the flow velocity is > 5 m/s, the transmitter has to measure in the FastFood mode.
• Page 219
  Annex FLUXUS H721 A Menu structure Example 4 The fluid change in a pipe has to be monitored. The fluid in the pipe changes during the measurement. The fluid change from crude oil to gasoline has to be output via a binary output.

• Page 220: B Units Of Measurement

  Annex B Units of measurement FLUXUS H721 Units of measurement Length/roughness unit of measurement description millimeter inch Temperature unit of measurement description degree Celsius °C degree Fahrenheit °F Pressure unit of measurement description bar (absolute) bar(a) bar (relative) bar(g) pound per square inch (absolute)

• Page 221
  Annex FLUXUS H721 B Units of measurement Standard/operating volumetric flow rate unit of measurement description standard/operating volume (totalized) cubic meter per day m3/d cubic meter per hour m3/h cubic meter per minute m3/min cubic meter per second m3/s cubic kilometer per hour…
• Page 222
  Annex B Units of measurement FLUXUS H721 unit of measurement description standard/operating volume (totalized) million cubic feet per hour MMCFH MMCF gallon per day Igpd (Imp-gal/d) Igal gallon per hour Igph (Imp-gal/h) Igal gallon per minute Igpm (Imp-gal/m) Igal gallon per second…

• Page 223: C Reference

  The following tables provide assistance for the user. The accuracy of the data depends on the composition, temperature and processing of the material. FLEXIM does not assume liability for any inaccuracies. Sound speed of selected pipe and lining materials at 20 °C The values of some of these materials are stored in the internal database of the transmitter.

• Page 224
  Annex C Reference FLUXUS H721 Typical roughness values of pipes The values are based on experience and measurements. material absolute roughness [mm] drawn pipes of non-ferrous metal, glass, plastics and light metal 0…0.0015 drawn steel pipes 0.01…0.05 fine-planed, polished surface max.
• Page 225
  Annex FLUXUS H721 C Reference Typical properties of selected fluids at 20 °C C.3.1 Mixtures with non-changing composition fluid explanation sound density kinematic range of speed [g/cm viscosity application [m/s] [°C] liquid water 1482 0.999 0…350 Water liquefied under pressure -180…+97…
• Page 226
  Annex C Reference FLUXUS H721 C.3.2 Mixtures with changing composition fluid explanation parameter- sound density kinematic range of ization speed [m/s] [g/cm viscosity application ethylene glycol proportion 1482…1710 999…1132 1…23 -30…+150 °C Glycol/H2O of glycol 0…100 % hydrocarbon API gravity 530…1800…
• Page 227
  C Reference FLUXUS H721 Properties of water at 1 bar and at saturation pressure fluid temperature fluid pressure sound speed density specific heat capacity [°C] [bar] [m/s] [kg/m [kJ/kg/K 1.013 1402.9 999.8 4.219 1.013 1447.3 999.7 4.195 1.013 1482.3 998.2 4.184…

• Page 228: D Conformity Declarations

  Annex D Conformity declarations FLUXUS H721 Conformity declarations For EU declaration of conformity according to ATEX directive, see document SIFLUXUS. 2022-05-15, UMFLUXUS_H721V1-5EN…