Page 1 Operating Instruction UMFLUXUS_F72xV2-2-0-0EN AN 26731 2024-03-01 Flexim FLUXUS F721, F722 Ultrasonic Flowmeter...
Page 3: Table Of Contents
FLUXUS F72* Table of contents Table of contents Introduction ................7 Safety instructions .
Page 4 Table of contents FLUXUS F72* Measurement ................102 Parameter input .
Page 5 FLUXUS F72* Table of contents Advanced functions ..............174 18.1 Totalizers .
Page 6 Table of contents FLUXUS F72* 2024-03-01, UMFLUXUS_F72xV2-2EN...
Page 7: Introduction
1 Introduction FLUXUS F72* Introduction This operating instruction has been written for users operating the ultrasonic flowmeter FLUXUS. It contains important information about the measuring equipment, how to handle it correctly, and how to avoid damages. Read the safety instructions carefully. Make sure you have read and understood this operating instruction before using the measuring equipment.
Page 8: Safety Instructions
2 Safety instructions 2.1 General safety instructions FLUXUS F72* Safety instructions General safety instructions Prior to any work, read the operating instruction carefully and in full. Failure to comply with the instructions, in particular with the safety instructions, poses a risk to health and can lead to material damages.
Page 9: Intended Use
2 Safety instructions FLUXUS F72* 2.2 Intended use Intended use The measuring equipment is intended for the measurement of fluid properties in closed pipes. By means of connected transducers, the transit times of the ultrasonic signals in the fluid and the pipe as well as other related properties, such as temperature and pressure, are measured and evaluated.
Page 10: Safety Instructions For Transport
2 Safety instructions 2.7 Safety instructions for transport FLUXUS F72* ground conductor connection must not be interrupted. The equipment switch has to be easily accessible and clearly marked as a disconnecting device for the transmitter. It should be located near the transmitter. If the transmitter is used in an explosive atmosphere, the equipment switch has to be installed outside the explosive atmosphere.
Page 11: General Principles
3 General principles FLUXUS F72* 3.1 Measurement principle General principles In the ultrasonic flow measurement, the flow velocity of the fluid in a pipe is determined. Further physical quantities are derived from the flow velocity and from additional physical quantities, if necessary. Measurement principle The flow velocity of the fluid is measured in the TransitTime mode using the ultrasonic-transit time difference correlation principle.
Page 12 3 General principles 3.1 Measurement principle FLUXUS F72* m · Mass flow rate · m · · ρ The mass of the fluid that passes through the pipe per unit time. The mass flow rate is calculated from the product of the ·...
Page 13 3 General principles FLUXUS F72* 3.1 Measurement principle Fig. 3.2: Sound path of the signal against the flow direction increase of the sound path α α α β β sound path without γ flow γ flow direction of the fluid sound path with flow c –...
Page 14 3 General principles 3.1 Measurement principle FLUXUS F72* Fig. 3.4: Measurement of the flow velocity in the NoiseTrek mode transducer 1 transducer 1 pulse at time t pulse at time t + Δt ultrasonic signal S ultrasonic signal S transit time t transit time t gas bubble or solid particle gas bubble or solid particle...
Page 15: Measurement Arrangements
3 General principles FLUXUS F72* 3.2 Measurement arrangements 3.1.6 Synchronized channel averaging (FLUXUS *722) Synchronized channel averaging reduces turbulence-related fluctuations of the measured value without the need of long- term averaging. When measuring in reflection arrangement, X arrangement or displaced X arrangement with synchronized channel averaging, the almost simultaneous measurement of all measuring beams results in optimized compensation of turbulent flow fluctuations.
Page 16: Transducer Distance
3 General principles 3.2 Measurement arrangements FLUXUS F72* Transducer distance The transducer distance is measured between the inner edges of the transducers. reflection arrangement diagonal arrangement (positive transducer distance) diagonal arrangement (negative transducer distance) a – transducer distance Sound beam plane Plane containing 1 or several sound paths or beams Fig.
Page 17: Acoustic Penetration
3 General principles FLUXUS F72* 3.3 Acoustic penetration 3.2.2 Examples diagonal arrangement with 1 beam reflection arrangement with 1 beam 1 transducer pair 1 transducer pair 1 sound path 2 sound paths 1 beam 1 beam 1 plane 1 plane diagonal arrangement with 2 beams reflection arrangement with 2 beams and 2 planes 2 transducer pairs...
Page 18: Horizontal Pipe
3 General principles 3.4 Undisturbed flow profile FLUXUS F72* Observe the following notes on the selection of the measuring point: Horizontal pipe Select a measuring point where the transducers can be mounted laterally on the pipe, allowing the sound waves to propagate horizontally in the pipe.
Page 19 3 General principles FLUXUS F72* 3.4 Undisturbed flow profile Tab. 3.1: Recommended distance from disturbances d – inner pipe diameter at the measuring point l – recommended distance between disturbance and transducer position disturbance: 90° elbow inlet: l ≥ 10 D outlet: l ≥...
Page 20 3 General principles 3.4 Undisturbed flow profile FLUXUS F72* Tab. 3.1: Recommended distance from disturbances d – inner pipe diameter at the measuring point l – recommended distance between disturbance and transducer position disturbance: 45° elbow inlet: l ≥ 15 D outlet: l ≥...
Page 21: Product Description
4 Product description FLUXUS F72* 4.1 Measuring system Product description Measuring system The measurement system consists of the transmitter, the ultrasonic transducers and the pipe on which the measurement is carried out. Fig. 4.1: Example of a measurement arrangement 1 – transducer 2 –...
Page 22 4 Product description 4.2 Handling concept FLUXUS F72* Tab. 4.1: Description of the menus menu description Parameters input of sensor, pipe and fluid parameters Installation input of measuring point specific parameters measurement start Start measurement measured value display Show measurement Stop measurement measurement stop Inputs...
Page 23: Display
4 Product description FLUXUS F72* 4.3 Display Display Structure Fig. 4.3: Example: menu Parameters 1 – menu 2 – menu item currently edited 3 – area for scroll lists, selection fields or input fields Tab. 4.2: Navigation horizontal scroll list vertical scroll list selection fields input fields...
Page 24: Keyboard
4 Product description 4.4 Keyboard FLUXUS F72* 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 25: Transport And Storage
5 Transport and storage FLUXUS F72* 5.1 Transport Transport and storage Caution! When packaging, the transmitter can fall down. There is a danger of crushing body parts or damaging the measuring equipment. → Secure the transmitter against falling during packaging. →...
Page 26: Mounting
6 Mounting FLUXUS F72* Mounting Danger! Risk of explosion when using the measuring equipment in explosive atmospheres This may result in personal or material damage or dangerous situations. → Observe the "Safety instructions for the use in explosive atmospheres". Warning! Installation, connection and start-up by unauthorized and unqualified personnel This may result in personal or material damage or dangerous situations.
Page 27: Transmitter
6 Mounting FLUXUS F72* 6.1 Transmitter 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 < 90 %, no conductive pollution, no explosive atmosphere).
Page 28: Installation Of The Transmitter
6 Mounting 6.1 Transmitter FLUXUS F72* 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 Installation of the transmitter Notice! Install the equipment in a shady place, the cable glands facing downward.
Page 29 6 Mounting FLUXUS F72* 6.1 Transmitter 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). Fig.
Page 30: Pipe Mounting
6 Mounting 6.1 Transmitter FLUXUS F72* 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 31 6 Mounting FLUXUS F72* 6.1 Transmitter 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 32: Transducers
6 Mounting 6.2 Transducers FLUXUS F72* 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 33: Pipe Preparation
6 Mounting FLUXUS F72* 6.2 Transducers 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. Notice! Observe the selection criteria of pipe and measuring point.
Page 34 6 Mounting 6.2 Transducers FLUXUS F72* 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 takes place in 2 planes displaced X arrangement •...
Page 35 6 Mounting FLUXUS F72* 6.2 Transducers 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 at according to the nearest elbow an angle of 45°...
Page 36 6 Mounting 6.2 Transducers FLUXUS F72* 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 diagonal arrangement, 2 displaced rails 6.2.2.3 Mounting the transducers of type ****LI**...
Page 37 6 Mounting FLUXUS F72* 6.2 Transducers 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 UMFLUXUS_F72xV2-2EN, 2024-03-01...
Page 38 6 Mounting 6.2 Transducers FLUXUS F72* 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. When measuring in diagonal arrangement with 2 beams in displaced X arrangement, 4 transducer mounting fixtures have to be mounted.
Page 39 6 Mounting FLUXUS F72* 6.2 Transducers 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 40 6 Mounting 6.2 Transducers FLUXUS F72* 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 41 6 Mounting FLUXUS F72* 6.2 Transducers Quick release clasp • Insert the tension strap into its clamp and the metal spring (see Fig. 6.18 and Fig. 6.19). • Position the clasp, the tension strap clamp and the metal spring on the pipe (see Fig. 6.17): –...
Page 42 6 Mounting 6.2 Transducers FLUXUS F72* Notice! In order to release the screw and the tension strap, press the lever down (see Fig. 6.22). Fig. 6.21: Tension strap with metal spring and clamp 1 – metal spring 2 – tension strap clamp Fig.
Page 43 6 Mounting FLUXUS F72* 6.2 Transducers Fig. 6.24: Rail, fixed on one side to the pipe 1 – tension strap clamp 2 – tension strap clamp 3 – nut • Select the installation instruction of the supplied clasp: Band clamp clasp •...
Page 44 6 Mounting 6.2 Transducers FLUXUS F72* Quick release clasp • Insert the tension strap into its clamp (2) and the metal spring. • Place the tension strap around the pipe and insert it into the clasp (see Fig. 6.25 and Fig. 6.27). •...
Page 45 6 Mounting FLUXUS F72* 6.2 Transducers Fig. 6.28: Tension strap with metal spring and clamp 1 – metal spring 2 – tension strap clamp Fig. 6.29: Ratchet clasp with tension strap 1 – sense of rotation 2 – edge 3 – lever 4 –...
Page 46 6 Mounting 6.2 Transducers FLUXUS F72* 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. 6.31). Notice! The arrows on the transducers and the covers have to point in the same direction.
Page 47 6 Mounting FLUXUS F72* 6.2 Transducers Fig. 6.33: Fixing the transducer cables 1 – strain relief clamp for transducer cable with stainless steel conduit 2 – strain relief clamp for transducer cable with plastic conduit 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 48 6 Mounting 6.2 Transducers FLUXUS F72* 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 2024-03-01, UMFLUXUS_F72xV2-2EN...
Page 49 6 Mounting FLUXUS F72* 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. Fig.
Page 50 6 Mounting 6.2 Transducers FLUXUS F72* Fig. 6.38: 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 51 6 Mounting FLUXUS F72* 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 52 6 Mounting 6.2 Transducers FLUXUS F72* Quick release clasp • Insert the tension strap into its clamp and the metal spring (see Fig. 6.43 and Fig. 6.44). • Position the clasp, the tension strap clamp and the metal spring on the pipe (see Fig. 6.42): –...
Page 53 6 Mounting FLUXUS F72* 6.2 Transducers Notice! In order to release the screw and the tension strap, press the lever down (see Fig. 6.47). Fig. 6.46: Tension strap with metal spring and clamp 1 – metal spring 2 – tension strap clamp Fig.
Page 54 6 Mounting 6.2 Transducers FLUXUS F72* Fig. 6.49: Rail, fixed on one side to the pipe 1 – tension strap clamp 2 – tension strap clamp 3 – nut • Select the installation instruction of the supplied clasp: Band clamp clasp •...
Page 55 6 Mounting FLUXUS F72* 6.2 Transducers Ratchet clasp • Insert the tension strap into its clamp (2) and the metal spring (see Fig. 6.50 and Fig. 6.53). The metal spring does not have to be mounted on: – steel pipes –...
Page 56 6 Mounting 6.2 Transducers FLUXUS F72* 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. Notice! If the signal is not sufficient for the measurement, use coupling compound instead of coupling foil.
Page 57 6 Mounting FLUXUS F72* 6.2 Transducers Fig. 6.57: Transducers in rail 1 – equipotential bonding terminal 2 – spring clip 3 – tensioning screw 4 – cable fixture Fig. 6.58: Variofix C with transducers on the pipe 1 – cover 2 –...
Page 58 6 Mounting 6.2 Transducers FLUXUS F72* 6.2.2.6 Installation with mounting shoe and band clamp clasp • Insert the tension strap into the groove on the upper side of the mounting shoe. • Position the mounting shoe and the clasp on the pipe. On horizontal pipes, mount the mounting shoe laterally to the pipe, if possible.
Page 59 6 Mounting FLUXUS F72* 6.2 Transducers 6.2.2.7 Mounting with PermaLok Scope of delivery 2 × PermaLok 1 × transducer pair 4 × quick release clasp with tension strap Fig. 6.61: PermaLok components 1 – cover 2 – screw 3 – nut 4 –...
Page 60 6 Mounting 6.2 Transducers FLUXUS F72* Mounting When measuring in diagonal arrangement, the transducer mounting fixtures are mounted on opposite sides of the pipe, see Fig. 6.62. When measuring in reflection arrangement, the transducer mounting fixtures are mounted on the same side of the pipe, see Fig.
Page 61 6 Mounting FLUXUS F72* 6.2 Transducers 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. 6.65) or through the rail fixture, see Fig. 6.66. Fig.
Page 62 6 Mounting 6.2 Transducers FLUXUS F72* 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 63 6 Mounting FLUXUS F72* 6.2 Transducers 6.2.2.8 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 64 6 Mounting 6.2 Transducers FLUXUS F72* 6.2.2.9 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 65 6 Mounting FLUXUS F72* 6.2 Transducers • Hold the tabs of the clip using pliers and pull the solid band completely through the slot of the clip, see Fig. 6.76. • Bend the end of the solid band back over the set of teeth, see Fig. 6.77. Fig.
Page 66: Temperature Probe
6 Mounting 6.3 Temperature probe FLUXUS F72* 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. Important! The pipe has to be sufficiently stable to withstand the pressure exerted by the temperature probe.
Page 67 6 Mounting FLUXUS F72* 6.3 Temperature probe Fig. 6.80: Clasp Fig. 6.81: 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 68 6 Mounting 6.3 Temperature probe FLUXUS F72* 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 69 6 Mounting FLUXUS F72* 6.3 Temperature probe 6.3.3 Installation of the temperature probe (response time 8 s) • Fix the protection plate and the insulation foam to the temperature probe, see Fig. 6.84. • Take the spring end of the chain and insert the first ball into one of the slots on the upper side of the temperature probe, see Fig.
Page 70: Connection
7 Connection FLUXUS F72* Connection Danger! Risk of explosion when using the measuring equipment in explosive atmospheres This may result in personal or material damage or dangerous situations. → Observe the "Safety instructions for the use in explosive atmospheres". Warning! Installation, connection and start-up by unauthorized and unqualified personnel This may result in personal or material damage or dangerous situations.
Page 71: Transducers
7 Connection FLUXUS F72* 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. Fig.
Page 72 7 Connection 7.1 Transducers FLUXUS F72* 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 73 7 Connection FLUXUS F72* 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 74 7 Connection 7.1 Transducers FLUXUS F72* 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 75 7 Connection FLUXUS F72* 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 76 7 Connection 7.1 Transducers FLUXUS F72* 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 77 7 Connection FLUXUS F72* 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 78 7 Connection 7.1 Transducers FLUXUS F72* 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 79 7 Connection FLUXUS F72* 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 cable to the junction box (without potential separation) cable gland 1 –...
Page 80 7 Connection 7.1 Transducers FLUXUS F72* 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 81 7 Connection FLUXUS F72* 7.1 Transducers Fig. 7.10: Connection of the extension cable to the junction box (with potential separation) cable gland 1 – extension cable 2 – external shield 3 – shield terminal 4 – cap nut 5 – compression part 6 –...
Page 82 7 Connection 7.1 Transducers FLUXUS F72* 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 83: Power Supply
7 Connection FLUXUS F72* 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 of max. 16 A (fuse or similar device) disconnecting all energizing wires in case of an inadmissible high current consumption. The impedance of the protective ground has to be low ohmic in order not to allow touch voltage pass the permissible limit.
Page 84: Cable Connection
7 Connection 7.2 Power supply FLUXUS F72* Tab. 7.10: Terminal assignment terminal connection AC connection DC L(+) outer conductor N(-) neutral conductor protective conductor protective conductor fuse 1 A, time-lag 1.6 A, time-lag 7.2.1 Cable connection Transmitter with stainless steel housing •...
Page 85: Outputs
7 Connection FLUXUS F72* 7.3 Outputs Transmitter with aluminum housing • Remove the blind plug to connect the cable to the transmitter. • Prepare the cable with a cable gland. The used cable has to have a wire cross-section of 0.25…2.5 mm •...
Page 86 7 Connection 7.3 Outputs FLUXUS F72* Tab. 7.11: Output circuits output transmitter external circuit remark internal circuit connection active current output/HART current output = 24 V < 500 Ω HART = 24 V < 500 Ω passive current output/HART current output = 8...30 V >...
Page 87 7 Connection FLUXUS F72* 7.3 Outputs Tab. 7.11: Output circuits output transmitter external circuit remark internal circuit connection digital output circuit 1 = 5...30 V < 100 mA [kΩ] = U [mA] circuit 2 RS485 120 Ω termination resistor shield The number, type and connections of the outputs depend on the order.
Page 88: Inputs
7 Connection 7.4 Inputs FLUXUS F72* Inputs Important! The max. permissible voltage between the inputs and against PE is 60 V DC (permanent). Fig. 7.17: Connection of the inputs to the transmitter NEXT DISP SNAP DISP 3x Q FAST MODE X_AV X_AR X_BV...
Page 89: Binary Input
7 Connection FLUXUS F72* 7.4 Inputs Connection of a passive current sink Important! The terminals Txa and TxB must not be connected. Important! Observe the correct polarity in order to avoid damaging the current sink. A permanent short circuit can destroy the current input.
Page 90: Temperature Probe
7 Connection 7.5 Temperature probe FLUXUS F72* 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 DISP 3x Q FAST...
Page 91 7 Connection FLUXUS F72* 7.5 Temperature probe 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 92 7 Connection 7.5 Temperature probe FLUXUS F72* 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 93 7 Connection FLUXUS F72* 7.5 Temperature probe 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 94: Service Interfaces
7 Connection 7.6 Service interfaces FLUXUS F72* 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. Fig.
Page 95 7 Connection FLUXUS F72* 7.6 Service interfaces 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 96 7 Connection 7.6 Service interfaces FLUXUS F72* Transmitter with aluminum housing Fig. 7.26: Connection of the LAN cable 1 – LAN interface 2 – foldable ferrite core 3 – LAN connector • Remove the blind plug to connect the cable to the transmitter. •...
Page 97: Start-Up
8 Start-up FLUXUS F72* Start-up Danger! Risk of explosion when using the measuring equipment in explosive atmospheres This may result in personal or material damage or dangerous situations. → Observe the "Safety instructions for the use in explosive atmospheres". Warning! Installation, connection and start-up by unauthorized and unqualified personnel This may result in personal or material damage or dangerous situations.
Page 98: Start-Up Settings
8 Start-up 8.1 Start-up settings FLUXUS F72* Start-up settings When starting up the transmitter for the first time, the following settings are required: • language • time/date • system of units These displays will only be indicated when the transmitter is switched on for the first time or after an initialization. Language The available transmitter languages are displayed.
Page 99: Status Indications
8 Start-up FLUXUS F72* 8.3 Status indications 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 100: Initialization
8 Start-up 8.5 Initialization FLUXUS F72* Initialization During an initialization (INIT) of the transmitter, all settings are reset to the factory settings. Proceed as follows to execute an initialization: • When switching on a transmitter: keep and C pressed. • During the operation of the transmitter: press , C and ENTER simultaneously.
Page 101: Information Regarding The Transmitter
8 Start-up FLUXUS F72* 8.7 Information regarding the transmitter Information regarding the transmitter Miscellaneous\System settings\Transmitter info • Select the menu item Transmitter info. • Press ENTER. • Press to scroll through the list. • Press to return to the menu item System settings. The following information relating to the transmitter is displayed: display description...
Page 102: Measurement
9 Measurement 9.1 Parameter input FLUXUS F72* Measurement Danger! Risk of explosion when using the measuring equipment in explosive atmospheres This may result in personal or material damage or dangerous situations. → Observe the "Safety instructions for the use in explosive atmospheres". Caution! Warning of severe injuries from hot or cold components Touching hot or cold components can lead to severe injuries (e.g., thermal damage).
Page 103 9 Measurement FLUXUS F72* 9.1 Parameter input 9.1.1 Measuring point configuration Parameters\Measuring point config.\1 meas. point (AB) • Select the configuration of the measuring point (here: 1 meas. point (AB)). • Press ENTER. The display will not be indicated if the transmitter has only one measuring channel. Tab.
Page 104 9 Measurement 9.1 Parameter input FLUXUS F72* Notice! If a standard transducer is selected, no transducer-specific calibration values are considered. A higher uncertainty has to be expected. 9.1.4 Input of pipe parameters Outer pipe diameter Parameters\Outer diameter • Enter the outer pipe diameter. •...
Page 105 9 Measurement FLUXUS F72* 9.1 Parameter input Roughness of the pipe material Parameters\Pipe material\Other material\Roughness The flow profile of the fluid is influenced by the roughness of the inner pipe wall. The roughness is used for the calculation of the profile correction factor. In most cases, the pipe roughness cannot be exactly determined and must therefore be estimated.
Page 106 9 Measurement 9.1 Parameter input FLUXUS F72* Roughness of the lining material Parameters\Lining material\Other material\Roughness The flow profile of the fluid is influenced by the roughness of the inner pipe wall. The roughness is used for the calculation of the profile correction factor. In most cases, the pipe roughness cannot be exactly determined and must therefore be estimated.
Page 107 9 Measurement FLUXUS F72* 9.1 Parameter input Sound speed range of the fluid Parameters\Fluid\Other fluid\Range c fluid • Select Automatic if the range around the average sound speed has to be set to ± 10 % the entered sound speed. •...
Page 108: Extension Cable
9 Measurement 9.1 Parameter input FLUXUS F72* 9.1.7 Further parameters Fluid temperature Parameters\Fluid temp. The fluid temperature is used: – at the beginning of the measurement for the interpolation of the sound speed and therefore for the calculation of the recommended transducer distance –...
Page 109 9 Measurement FLUXUS F72* 9.1 Parameter input 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 110: Configuration Of An Output
9 Measurement 9.2 Configuration of an output FLUXUS F72* Definition of conditions for valid measurements Parameters\Valid meas. condition • Select a condition. • Press ENTER. This display will only be indicated if the list item 1 meas. point (AB) is selected in the menu item Parameters\ Measuring point config.
Page 111: Fluid Properties
9 Measurement FLUXUS F72* 9.2 Configuration of an output Tab. 9.3: Configuration of the outputs source item list item output Flow quantities Flow velocity flow velocity Volumetric flow rate volumetric flow rate mass flow rate Mass flow rate thermal energy rate Thermal energy rate Totalizers Volume (+)
Page 112 9 Measurement 9.2 Configuration of an output FLUXUS F72* Tab. 9.3: Configuration of the outputs source item list item output Diagnostic values Amplitude signal amplitude Quality signal quality signal-to-noise ratio signal-to-correlated noise ratio SCNR VariAmp amplitude variation VariTime transit time variation Gain gain required to receive a useful signal signalizes whether a pig is detected...
Page 113: Error Output
9 Measurement FLUXUS F72* 9.2 Configuration of an output 9.2.1 Output of a measured value • Select the list item Outputs\...\Values. • Press ENTER. Source item Output range Values Outputs\...\Output range Output range • Select a list item. Error value –...
Page 114 9 Measurement 9.2 Configuration of an output FLUXUS F72* 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 115 9 Measurement FLUXUS F72* 9.2 Configuration of an output Terminal assignment Outputs\...\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 116 9 Measurement 9.2 Configuration of an output FLUXUS F72* 9.2.2 Output of a status/event value • Select the list item Outputs\...\Status. • Press ENTER. Source item Output range Status Outputs\...\Output range Output range • Select a list item. – 4...20 mA Status OK Idle state –...
Page 117 9 Measurement FLUXUS F72* 9.2 Configuration of an output • Select Repeat to repeat the test or Finish to display the next menu item. • Press ENTER. Outputs\...\Test measuring range • Select Yes to test the status of the output signal. Select No to display the next menu item. •...
Page 118: Start Of Measurement
9 Measurement 9.3 Start of measurement FLUXUS F72* Start of measurement Before starting the measurement, the measuring point has to be parameterized. If another measurement has already Installation Start measurement been performed using the same measuring point parameters, the measurement can be started immediately. Sound path •...
Page 119 9 Measurement FLUXUS F72* 9.3 Start of measurement Notice! The accuracy of the recommended transducer distance depends on the accuracy of the entered pipe and fluid parameters. • Mount the transducers on the pipe and adjust the recommended transducer distance. •...
Page 120: Display During The Measurement
9 Measurement 9.4 Display during the measurement FLUXUS F72* Input of the transducer distance Installation\Transducer distance The recommended transducer distance is calculated on the basis of the measured sound speed. It is therefore a better approximation than the first recommended value which had been calculated on the basis of the parameters entered in the menu Parameters.
Page 121: Status Line
9 Measurement FLUXUS F72* 9.4 Display during the measurement Toggling between the measuring channels If 2 meas. points (A|B) is selected for the configuration of the measuring point, the measurement is started on several measuring channels. The display of the measured values can be adapted as follows: AutoMux mode The measured values of all activated measuring channels are displayed consecutively in the AutoMux mode.
Page 122: Diagnostic Values
9 Measurement 9.4 Display during the measurement FLUXUS F72* Tab. 9.9: Description of the status line value explanation flow profile information about the flow profile based on the Reynolds number fully turbulent flow profile fully laminar flow profile ↕ transition range between laminar and turbulent flow unknown, cannot be calculated flow velocity comparison of the measured flow velocity with the flow limits of the system...
Page 123: Parameter Settings
9 Measurement FLUXUS F72* 9.4 Display during the measurement Parameter settings The parameter settings can be displayed during the measurement. • Press during the measurement. The transmitter returns to the main menu. Fig. 9.5: Display of the main menu during the measurement 1 –...
Page 124: Execution Of Special Functions
9 Measurement 9.5 Execution of special functions FLUXUS F72* Display of the current temperature offset If the calculation of the fluid temperature from the sound speed is activated, the temperature offset can be displayed during the measurement. Miscellaneous\Special settings\Fluid: c -> T •...
Page 125 9 Measurement FLUXUS F72* 9.5 Execution of special functions Totalizers Measurement\Execute command\Totalizers • Select the list item Totalizers. • Press ENTER. The following scroll list appears: display description Reset totalizers reset the totalizer to zero Freeze display display the measured value of the totalizer for several seconds Reset error reset the totalizer error stop totalizer and reset it to zero...
Page 126: Stop Of Measurement
9 Measurement 9.6 Stop of measurement FLUXUS F72* Reset the event trigger to idle state Measurement\Execute command\Clear alarms • Select the list item Clear alarms. • Press ENTER. This display will only be indicated if an event trigger has been parameterized and at least one event trigger has also been triggered.
Page 127: Troubleshooting
10 Troubleshooting FLUXUS F72* Troubleshooting Danger! Risk of explosion when using the measuring equipment in explosive atmospheres This may result in personal or material damage or dangerous situations. → Observe the "Safety instructions for the use in explosive atmospheres". Warning! Service works by unauthorized and unqualified personnel This may result in personal or material damage or dangerous situations.
Page 128: Problems With The Measurement
10 Troubleshooting 10.1 Problems with the measurement FLUXUS F72* The display does not work at all or fails regularly. • Check the contrast setting of the transmitter or enter the HotCode 555000 to set the display to medium contrast. • Make sure that the correct voltage is available at the terminals. The destined transmitter voltage is indicated on the nameplate below the outer right terminal strip.
Page 129: Measuring Point Selection
10 Troubleshooting FLUXUS F72* 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 130: Significant Deviations Of The Measured Values
10 Troubleshooting 10.5 Significant deviations of the measured values FLUXUS F72* 10.5 Significant deviations of the measured values A fluid with a wrong sound speed was selected. • If a fluid was selected whose sound speed does not match the actual one, a pipe wall signal can be mistaken for the measuring signal.
Page 131: Maintenance And Cleaning
11 Maintenance and cleaning FLUXUS F72* Maintenance and cleaning Danger! Risk of explosion when using the measuring equipment in explosive atmospheres This may result in personal or material damage or dangerous situations. → Observe the "Safety instructions for the use in explosive atmospheres". Warning! Service works by unauthorized and unqualified personnel This may result in personal or material damage or dangerous situations.
Page 132: Maintenance
11 Maintenance and cleaning 11.1 Maintenance FLUXUS F72* 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 visual inspection for corrosion annually or more frequently, cleaning...
Page 133: Dismounting And Disposal
12 Dismounting and disposal FLUXUS F72* 12.1 Dismounting Dismounting and disposal Danger! Risk of explosion when using the measuring equipment in explosive atmospheres This may result in personal or material damage or dangerous situations. → Observe the "Safety instructions for the use in explosive atmospheres". Warning! Installation, connection and start-up by unauthorized and unqualified personnel This may result in personal or material damage or dangerous situations.
Page 134: User Modes
13 User modes FLUXUS F72* User modes The user modes allow extended diagnostics of signals and measured values as well as the definition of additional Miscellaneous parameters adapted to the application. The following user modes can be selected: System settings •StandardUser •ExpertUser User mode...
Page 135: Standarduser Mode
13 User modes FLUXUS F72* 13.1 StandardUser mode User mode selection Miscellaneous\System settings\User mode • Select the menu item User mode. • Press ENTER. • Select a list item. • Press ENTER. 13.1 StandardUser mode In the StandardUser mode, all measurements can be carried out for the corresponding application. At the first start-up the transmitter operates in the StandardUser mode.
Page 136 13 User modes 13.1 StandardUser mode FLUXUS F72* Miscellaneous\Special settings\HybridTrek\TT -> NT If the automatic toggling between the TransitTime and NoiseTrek mode is activated, further parameters have to be configured. • Enter the time after which the transmitter has to toggle to the NoiseTrek mode if there are no valid measured values in the TransitTime mode.
Page 137 13 User modes FLUXUS F72* 13.1 StandardUser mode 13.1.2 Start in measuring mode For some application it is necessary to start the measurement in a particular measuring mode. Miscellaneous\Special settings\Start in meas. mode • Select the menu item Special settings in the menu Miscellaneous. •...
Page 138 13 User modes 13.1 StandardUser mode FLUXUS F72* 13.1.5 Cut-off flow The cut-off flow is a lower limit for the flow velocity. All measured flow velocities that are below the limit are set to zero. The cut-off flow can depend on the flow direction. Calibration\Cut-off flow •...
Page 139: Expertuser Mode
13 User modes FLUXUS F72* 13.2 ExpertUser mode Calibration\Multi-point calibration\Point x=act. value • Enter the measured value of the transmitter. • Press ENTER. Calibration\Multi-point calibration\Point x=set value • Enter the measured values of the reference flowmeter. • Press ENTER. • Repeat the input for all pairs of measured values. •...
Page 140 13 User modes 13.2 ExpertUser mode FLUXUS F72* Selection of the version Miscellaneous\Measurement\Measurement settings\Profile correction • Select the menu item Measurement\Measurement settings in the menu Miscellaneous. • Press ENTER until the menu item Profile correction is displayed. • Select a list item (default: kRe 2.0 disturb. corr.). •...
Page 141 13 User modes FLUXUS F72* 13.2 ExpertUser mode 13.2.2 Max. signal gain In order to prevent disturbing and/or pipe wall signals (e.g., if the pipe has run empty) from being interpreted as useful signals, it is possible to define a max. signal gain. If the signal gain is greater than the max.
Page 142 13 User modes 13.2 ExpertUser mode FLUXUS F72* 13.2.4 Limit of the flow velocity Single outliers caused by heavily disturbed surroundings can appear among the measured values of the flow velocity. If these outliers are not ignored, they will affect all derived physical quantities, which will be unsuitable for the integration (e.g., pulse outputs).
Page 143: Superuser Mode And Superuser Ext. Mode
13 User modes FLUXUS F72* 13.3 SuperUser mode and SuperUser ext. mode 13.2.4.1 Measuring point specific profile correction In special cases a measuring point specific profile correction can be used. Calibration\Profile correction • Select the menu item Profile correction in the menu Calibration. •...
Page 144 13 User modes 13.3 SuperUser mode and SuperUser ext. mode FLUXUS F72* 13.3.2 Calculation of the fluid temperature from the sound speed of the fluid Miscellaneous\Special settings\Fluid: c -> T • Select the menu item Special settings in the menu Miscellaneous. •...
Page 145: Calibration\Factor
13 User modes FLUXUS F72* 13.3 SuperUser mode and SuperUser ext. mode 13.3.4 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 146 13 User modes 13.3 SuperUser mode and SuperUser ext. mode FLUXUS F72* 13.3.5 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 measuring channels. The differences can be caused by profile deformations or cross-flows.
Page 147 13 User modes FLUXUS F72* 13.3 SuperUser mode and SuperUser ext. mode 13.3.8 Channel-based parametrization Parameters\Measuring point config.\Channel-based param. • Select the list item Channel-based param. in the menu item Parameters\Measuring point config. • Press ENTER. • Select the measuring channel for which the parameters are to be entered. •...
Page 148 13 User modes 13.3 SuperUser mode and SuperUser ext. mode FLUXUS F72* Selection of the calculation type Tab. 13.4: Calculation types average (all chan. OK) average (1 chan. OK) special mean with "AND" mean with "OR" Each measuring channel selected for calculation can be assigned with a All measuring channels have to At least one measuring channel has...
Page 149 13 User modes FLUXUS F72* 13.3 SuperUser mode and SuperUser ext. mode Parameters\...\Calculation type\-Upper limit • Select No limit if the calculation channel has to output all negative values without upper limit • Press ENTER. • Select Set to limit if the calculation channel has to output the limit when falling below the upper limit. •...
Page 150: Extended Diagnostics
13 User modes 13.3 SuperUser mode and SuperUser ext. mode FLUXUS F72* If the output has already been assigned to a channel, it is displayed as follows: Current I1 (Y). Outputs\Current I1\I1 Enable • Select Yes to change the settings for an already assigned output or to assign a new output. •...
Page 151 13 User modes FLUXUS F72* 13.3 SuperUser mode and SuperUser ext. mode Definition of an event trigger Functions\Channel Y • Select a calculation channel in the menu Functions, for which an event trigger is to be enabled (here: Channel Y). •...
Page 152: Outputs
14 Outputs 14.1 Configuration of a digital output as binary output FLUXUS F72* Outputs If the transmitter is equipped with outputs, they have to be configured. For the configuration of the analog output, see Outputs section 9.2. The transmitter can also be equipped with digital outputs. A Select output digital output combines the functions of the following outputs: Enable output...
Page 153: Idle State
14 Outputs FLUXUS F72* 14.1 Configuration of a digital output as binary output Assignment of an output Outputs\Digital output B1\B1 Enable\Select meas. point • Select the measuring point. • Press ENTER. This display will only be indicated if 2 meas. points (A|B) is selected for the configuration of the measuring point. Assignment of a source item A source item has to be assigned to each selected output.
Page 154 14 Outputs 14.1 Configuration of a digital output as binary output FLUXUS F72* Terminal assignment Outputs\Digital output B1\...\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 155: Configuration Of A Digital Output As Pulse Output
14 Outputs FLUXUS F72* 14.2 Configuration of a digital output as pulse output Tab. 14.5: Output function test – measuring range list item switching function test value description Status OK Status OK • binary output is energized (status value) • measured value has to be low ohmic Status error •...
Page 156 14 Outputs 14.2 Configuration of a digital output as pulse output FLUXUS F72* Tab. 14.6: Selection of the physical quantity source item list item output Pulse Pulse |V| pulse without considering the sign of the volumetric flow rate Pulse +V pulse for positive measured values of the volumetric flow rate pulse for negative measured values of the volumetric flow rate Pulse -V...
Page 157 14 Outputs FLUXUS F72* 14.2 Configuration of a digital output as pulse output 14.2.2 Pulse output by defining pulses per unit Outputs\Pulse output • Select the list item Pulses per unit. • Press ENTER. Outputs\Output range • Select a list item: –...
Page 158: Configuration Of A Digital Output As Frequency Output
14 Outputs 14.3 Configuration of a digital output as frequency output FLUXUS F72* Output function test Outputs\...\B1 Test signal • Select Yes to test the status of the output signal. Select No to display the next menu item. • Press ENTER. Outputs\...\B1 Enter test value •...
Page 159 14 Outputs FLUXUS F72* 14.3 Configuration of a digital output as frequency output Output range Outputs\...\Output range • Select a list item. – 0...1 kHz – 0...10 kHz – Other range • Press ENTER. If Other range is selected, enter the values Output MIN and Output MAX. Error output Outputs\...\Error value An error value can be defined which is output if the source item cannot be measured.
Page 160 14 Outputs 14.3 Configuration of a digital output as frequency output FLUXUS F72* Output function test The function of the output can now be tested. • Connect an external measuring instrument to the terminals of the installed output. Outputs\...\Test signal •...
Page 161: Inputs
15 Inputs FLUXUS F72* 15.1 Configuration of an input Inputs Inputs Configure inputs Assign inputs → Current Ix Assignment of configured → Voltage Ux inputs → Binary Bx → Temperature Tx see annex A 15.1 Configuration of an input If the transmitter is equipped with inputs, they have to be configured. •...
Page 162 15 Inputs 15.1 Configuration of an input FLUXUS F72* 15.1.1 Current and voltage inputs When configuring the current or voltage inputs, the source item can now be selected and the input and measuring range is defined. Selection of the source item Inputs\...\Source item •...
Page 163: Temperature Inputs
15 Inputs FLUXUS F72* 15.1 Configuration of an input 15.1.2 Temperature inputs When configuring a temperature input, the temperature probe can now be selected. Selection of the temperature probe Inputs\Configure inputs\Temperature Tx\Pt100/Pt1000 • Select the temperature probe: – Pt100 – Pt1000 Activation of the temperature correction A temperature correction (offset) can be set for each temperature input.
Page 164 15 Inputs 15.1 Configuration of an input FLUXUS F72* 15.1.3 Definition of a switching condition If a transmitter function is to be performed by remote control, a switching condition has to be defined. Inputs\...\Trigger value • Select Yes if a switching condition is to be defined. Select No to display the next menu item. •...
Page 165: Binary Inputs
15 Inputs FLUXUS F72* 15.1 Configuration of an input 15.1.4 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 Inputs\Configure inputs\Binary Bx\Negate input •...
Page 166: Assignment Of An Input
15 Inputs 15.2 Assignment of an input FLUXUS F72* Binary input • Connect the signal source to the input. Inputs\...\I1 Test signal • Select Yes to test the input signal. Select No to display the next menu item. • Press ENTER. If the transmitter displays that a input signal is connected, the input functions correctly.
Page 167: Data Logger
16 Data logger FLUXUS F72* 16.1 Configuration of the data logger Data logger The transmitter has a data logger which stores the measured values during the measurement. Storage Data logger Notice! In order to store measured data, the data logger has Configuration to be configured.
Page 168 16 Data logger 16.1 Configuration of the data logger FLUXUS F72* display description Immediately The storing starts immediately. Full 5 minutes The storing starts in the next full 5 minutes. Full 10 minutes The storing starts in the next full 10 minutes. Full 15 minutes The storing starts in the next full 15 minutes.
Page 169 16 Data logger FLUXUS F72* 16.1 Configuration of the data logger Storage\Data logger\Configuration\Start storing\Event-based\Storage rate (trig.) • Select in the scroll list a storage rate for storing the measured values in case the event occurs. • Press ENTER. Storage\Data logger\Configuration\Start storing\Event-based\Buffer time ->П •...
Page 170 16 Data logger 16.1 Configuration of the data logger FLUXUS F72* Ringbuffer Storage\Data logger\Configuration\Ringbuffer 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 171: Deletion Of The Data Logger
16 Data logger FLUXUS F72* 16.2 Deletion of the data logger 16.2 Deletion of the data logger Storage\Data logger\Delete meas. values • Select the menu item Storage\Data logger\Delete meas. values. • Press ENTER. • Select Yes to delete the measured values. •...
Page 172: Data Transmission
17 Data transmission 17.1 Service interfaces FLUXUS F72* Data transmission The data is transmit via the service interfaces or the process interface (optional) of the transmitter. 17.1 Service interfaces By means of the program FluxDiagReader it is possible to transmit via service interfaces (USB, LAN) data to the PC. The following tasks can be carried out: •...
Page 173: Process Interface
17 Data transmission FLUXUS F72* 17.2 Process interface Automatic addressing with DHCP • Select Automatic to automatically identify the network parameters (IP address, subnet mask and standard gateway) via a DHCP server. Notice! The network parameters can only be automatically identified if the LAN supports DCHP. •...
Page 174: Advanced Functions
18 Advanced functions 18.1 Totalizers FLUXUS F72* Advanced functions 18.1 Totalizers The thermal energy, 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 heat, volume or mass unit selected for the physical quantity.
Page 175: Detection Of Long Measurement Failures
18 Advanced functions FLUXUS F72* 18.1 Totalizers The number of decimal places is constant. The max. value of the totalizers decreases with an increasing number of decimal places. decimal places max. value max. display < 10 ±9999999999 < 10 ±99999999.9 <...
Page 176 18 Advanced functions 18.1 Totalizers FLUXUS F72* Notice! The overflow of a totalizer influences all output channels, e.g., the data logger and the online transmission of data. The sum of both totalizers (throughput Q) transmitted via an output is no longer valid after one of the totalizers has overflowed for the first time.
Page 177: Fastfood Mode
18 Advanced functions FLUXUS F72* 18.2 FastFood mode 18.2 FastFood mode The FastFood mode allows to measure highly dynamic flows. A continuous adaptation to changing measuring conditions is only partially realized in the FastFood mode. • The measured values are stored with the storage rate of the FastFood mode. •...
Page 178: Diagnosis With The Help Of The Snap Function
18 Advanced functions 18.3 Diagnosis with the help of the snap function FLUXUS F72* 18.2.3 Activation/deactivation of the FastFood mode If the FastFood mode is enabled and a measurement has been started, the normal measuring mode runs at first. • Press to activate the FastFood mode.
Page 179: Modification Of The Limit For The Inner Pipe Diameter
18 Advanced functions FLUXUS F72* 18.4 Modification of the limit for the inner pipe diameter 18.3.3 Information concerning snaps Storage\Snap\Snap info • Select the menu item Snap\Snap info in the menu Storage. • Press ENTER. The following information is displayed: display description Stored snaps...
Page 180: Remote Functions
18 Advanced functions 18.5 Remote functions FLUXUS F72* 18.5 Remote functions Remote functions can be triggered by triggerable analog inputs or event triggers. Functions In order to define an input for a remote function, it has to be enabled in the menu Inputs. Remote functions In order to define an event trigger for a remote function, it has to be enabled in the menu item Functions\...
Page 181 18 Advanced functions FLUXUS F72* 18.5 Remote functions Reset of totalizers • Select the list item Reset totalizers. • Press ENTER. The totalizers are set to zero. The totalizers are deactivated for the duration of the signal. Totalizing starts at zero again, as soon as the condition for the remote function is no longer met. When the totalizers are reset to zero with the remote function, the character H is displayed next to the measured value during the measurement.
Page 182: Event Triggers
18 Advanced functions 18.6 Event triggers FLUXUS F72* 18.6 Event triggers It is possible to configure max. 4 independent event trigger R1, R2, R3, R4. Functions The event triggers can be used, e.g., to: Event trigger – output information about the running measurement –...
Page 183 18 Advanced functions FLUXUS F72* 18.6 Event triggers Tab. 18.2: Source items source item list item output Totalizers Volume (+) totalizer for the volumetric flow rate in positive flow direction Volume (-) totalizer for the volumetric flow rate in negative flow direction difference of the totalizers for the positive and negative flow direction Volume (Δ) totalizer for the mass flow rate in positive flow direction...
Page 184 18 Advanced functions 18.6 Event triggers FLUXUS F72* Tab. 18.2: Source items source item list item output Sound speed Sound speed measured sound speed in the fluid Sound speed (Δ) difference of the measured sound speed and the sound speed calculated from the fluid data only if Thermal energy rate is selected as physical quantity in the menu Parameters Afterwards the properties of the event trigger are defined.
Page 185 18 Advanced functions FLUXUS F72* 18.6 Event triggers Functions\Event trigger\Rx Enable\Source item\...\Hysteresis It is possible to define a hysteresis to avoid constant switching of the event trigger. The event trigger is activated when the measured values exceed the upper limit. It is deactivated when the measured values fall below the lower limit.
Page 186 18 Advanced functions 18.6 Event triggers FLUXUS F72* 18.6.2 Reset and initialization of the event triggers After an initialization of the transmitter all event triggers are deactivated. • Press 3 times C during measurement to set all event triggers to the idle state. Event triggers whose switching condition is still met will be activated again after 1 s.
Page 187: Event Log
18 Advanced functions FLUXUS F72* 18.7 Event log 18.7 Event log If an error occurs, an error message will be displayed in the first line indicating the symbol . The error message can be displayed. Storage\Event log • Select the menu item Event log in the menu Storage. •...
Page 188: Settings
19 Settings 19.1 Dialogs and menus FLUXUS F72* Settings 19.1 Dialogs and menus Miscellaneous\Dialogs/Menus • Select the menu item Dialogs/Menus in the menu Miscellaneous. • Press ENTER. Pipe circumference Miscellaneous\Dialogs/Menus\Pipe circumference • Press ENTER until the menu item Pipe circumference is displayed. •...
Page 189 19 Settings FLUXUS F72* 19.1 Dialogs and menus 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. Miscellaneous\Dialogs/Menus\Error delay • Press ENTER until the menu item Error delay is displayed. •...
Page 190: Measurement Modes
19 Settings 19.2 Measurement modes FLUXUS F72* Toggle time If 1 meas. point (AB) or 2 meas. points (A|B) is selected for the configuration of the measuring point in the menu Parameters, the time interval can be defined, after which the transmitter toggles between the different measuring channels during the measurement.
Page 191: Measurement Settings
19 Settings FLUXUS F72* 19.3 Measurement settings 19.3 Measurement settings Miscellaneous\Measurement\Measurement settings • Select the menu item Measurement in the menu Miscellaneous. • 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. It is based on calibration curves of series of measured values Miscellaneous\Measurement\Measurement settings\Multi-point calibration •...
Page 192: Units Of Measurement
19 Settings 19.4 Units of measurement FLUXUS F72* 19.4 Units of measurement It is possible to set the global units of measurement for length, temperature, pressure, sound speed, density and kinematic viscosity. Miscellaneous\Units of measurement • Select the menu item Units of measurement in the menu Miscellaneous. •...
Page 193: Working With Parameter Records
19 Settings FLUXUS F72* 19.6 Working with parameter records 19.6 Working with parameter records 19.6.1 Introduction Parameter records are data sets that contain all information necessary to perform a certain measurement task: • pipe parameters • transducer parameters • fluid parameters •...
Page 194: Contrast Settings
19 Settings 19.7 Contrast settings FLUXUS F72* 19.7 Contrast settings Miscellaneous\System settings\Display contrast • Select the menu item System settings in the menu Miscellaneous. • Press ENTER. • Select the menu item Display contrast. • Press ENTER. The display contrast is adjusted with the following keys: increases the contrast reduces the contrast •...
Page 195: Language Selection
19 Settings FLUXUS F72* 19.9 Key lock Language selection The language selection can either be carried out via the menu Miscellaneous\System settings\Language or a HotCode: language HotCode English 909044 German 909049 French 909033 Spanish 909034 Dutch 909031 Russian 909007 Polish 909048 Turkish 909090...
Page 196 19 Settings 19.9 Key lock FLUXUS F72* Intervention in the measurement If the key lock is activated, the message Key lock activated will be displayed for a few seconds when pressing a key. In order to interrupt a measurement, the key lock has to be deactivated. •...
Page 197: Thermal Energy Rate Measurement (Option)
20 Thermal energy rate measurement (option) FLUXUS F72* 20.1 Calculation of the thermal energy rate Thermal energy rate measurement (option) If the transmitter has the optional thermal energy measurement and 2 temperature inputs, the thermal energy rate can be measured. A temperature probe is fixed on the supply and the return line. The transducers are fixed on the return line.
Page 198: Definition Of The Physical Quantity And The Unit Of Measurement
20 Thermal energy rate measurement (option) 20.2 Definition of the physical quantity and the unit of measurement FLUXUS F72* 20.2 Definition of the physical quantity and the unit of measurement Parameters\...\Physical quantity Parameters • Select the menu Parameters. • Press ENTER until the menu item Physical quantity is displayed.
Page 199: Assignment Of The Temperature Inputs
20 Thermal energy rate measurement (option) FLUXUS F72* 20.4 Assignment of the temperature inputs 20.4 Assignment of the temperature inputs The supply and return temperature are assigned as Supply temperature and Return temperature respectively in the transmitter. The temperatures can be measured or entered as constant values. The temperature inputs have to be enabled in the menu Inputs.
Page 200 20 Thermal energy rate measurement (option) 20.5 Two independent thermal energy rate measurements FLUXUS F72* 2024-03-01, UMFLUXUS_F72xV2-2EN...
Page 201: Annex
Annex FLUXUS F72* A Menu structure Annex Menu structure Main menu Parameters Installation Start measurement Inputs Outputs Measuring point config. Fluid: c -> T Measurement Select outputs → Configure inputs → Assign inputs Measuring point no. Sound path Enable Transducer Transducer distance Source item Pipe parameters...
Page 202: Parameter Input
Annex A Menu structure FLUXUS F72* Parameter input Main menu Parameters Measuring point config. Measuring point no. Transducer Connected transd. Transducer not found Select transducer Outer diameter Pipe material Pipe wall thickness Lining Lining 2 Coating Roughness Automatic Customized Fluid Physical quantity Unit of measurement Fluid temp.
Page 203 Annex FLUXUS F72* A Menu structure Data logger Storage Data logger Configuration Delete meas. values Data logger info Enable logger Start storing → Ringbuffer activated → Logger full → Meas. val. Series → Occup. Logger Event-based → Immediately → Full 5 minutes →...
Page 204: Measurement Start
Annex A Menu structure FLUXUS F72* Measurement start Installation Start measurement Main menu Fluid temp. Sound path Transducer distance Signal test Transducer distance Measurement Show measurement Stop measurement Main menu Read-only mode Legend only if enabled in the menu item Miscellaneous\Special settings\Fluid: c -> T 2024-03-01, UMFLUXUS_F72xV2-2EN...
Page 205: Output Configuration
Annex FLUXUS F72* A Menu structure Output configuration Outputs → Current Current output modes → Voltage → Digital output Active Passive Enable ... Source item Sound speed Flow quantities Totalizers Fluid properties Diagnostic values Miscellaneous Event trigger Pulse Pulse mode Status Values →...
Page 206 Annex A Menu structure FLUXUS F72* Inputs Inputs Assign inputs Configure inputs Available physical → Temperature quantities → Current → Voltage → Binary Available inputs Temperature Enable Tx Pt100/Pt1000 Temperature offset → Temperature Trigger value Function → Within range → MAX (x>limit) →...
Page 207 Annex FLUXUS F72* A Menu structure Inputs Inputs Configure inputs Current Enable Ix → Temperature → Current → Voltage → Binary Source item Customized Current → Temperature → Pressure → Density Input name → Kin. viscosity → Dyn. viscosity Unit of measurement Decimal places Input range Other range...
Page 208 Annex A Menu structure FLUXUS F72* Inputs Inputs Configure inputs Voltage Enable Ux → Temperature → Current → Voltage → Binary Source item Customized Current → Temperature → Pressure → Density Input name → Kin. viscosity → Dyn. viscosity Unit of measurement Binary Decimal places Enable Bx...
Page 209: Special Settings
Annex FLUXUS F72* A Menu structure Special settings Miscellaneous Special settings Max. gain Enable NoiseTrek Default Customized Default Pipe signal detection HybridTrek Default Customized Start in meas. mode [3], [4] Pig detection TransitTime FastFood NoiseTrek Global settings Only ... mode Turbulence mode Fluid: c ->...
Page 210 Annex A Menu structure FLUXUS F72* Calibration If Channel-based param. is selected for the configuration of the measuring point, the settings can be made individually for each measuring channel. Calibration Cut-off flow Flow velocity limit LWT pipe wall calibr. [3, 4] Default Customized Linear calibration...
Page 211 Annex FLUXUS F72* A Menu structure Thermal energy rate measurement Parameters Inputs Temperature Physical quantity → Thermal energy rate Pt100/Pt1000 Application Offset Trigger value Cooling Heating Transducer location Function Supply line Return line → MAX (x>limit) → Within range → MIN (x<limit) →...
Page 212 Annex A Menu structure FLUXUS F72* Results – overview Trigger Input quantities Physical quantities Inputs Parameters → Temperature → Flow quantities → Current → Sound speed → Totalizers → Fluid properties → Diagnostic values Condition Event trigger → Switching condition →...
Page 213 Annex FLUXUS F72* A Menu structure Definition of event triggers Functions 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 → Out of range →...
Page 214: Remote Functions
Annex A Menu structure FLUXUS F72* Remote functions Trigger Inputs Functions Condition Event trigger Temperature Current Enable Enable Select Rx Pt100/Pt1000 Source item Enable Rx Source item Condition Trigger value Function → MAX (x>limit) → MIN (x<limit) → Within range →...
Page 215 Annex FLUXUS F72* A Menu structure Event-based storing of measured values Trigger Inputs Functions Condition Event trigger Temperature Current Enable Enable Select Rx Pt100/Pt1000 Source item Enable Rx Source item Condition Trigger value Function → MAX (x>limit) → MIN (x<limit) →...
Page 216: Calculation Channels
Annex A Menu structure FLUXUS F72* Calculation channels This function is only available in SuperUser or SuperUser ext. mode. Parameters Channel-based param. Channel x Channel x Measuring point no. Calculation Transducer selection Calculation type Pipe parameters Average (all chan. OK) Average (1 chan.
Page 217 Annex FLUXUS F72* A Menu structure 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 action: trigger a snap Functions...
Page 218 Annex A Menu structure FLUXUS F72* 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 219 Annex FLUXUS F72* A Menu structure 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. trigger: flow velocity >...
Page 220: B Units Of Measurement
Annex B Units of measurement FLUXUS F72* Units of measurement Length/roughness unit of measurement description millimeter inch Temperature unit of measurement description °C degree Celsius degree Fahrenheit °F Pressure unit of measurement description bar(a) bar (absolute) bar(g) bar (relative) psi(a) pound per square inch (absolute) pound per square inch (relative) psi(g)
Page 221 Annex FLUXUS F72* B Units of measurement Volumetric flow rate unit of measurement description default volume (totalized) m3/d cubic meter per day m3/h cubic meter per hour cubic meter per minute m3/min m3/s cubic meter per second km3/h cubic kilometer per hour ml/min milliliter per minute liter per hour...
Page 222 Annex B Units of measurement FLUXUS F72* unit of measurement description default volume (totalized) MMCFD million cubic feet per day MMCF MMCFH million cubic feet per hour MMCF Igpd (Imp-gal/d) gallon per day Igal Igph (Imp-gal/h) gallon per hour Igal gallon per minute Igpm (Imp-gal/m) Igal...
Page 223 Annex FLUXUS F72* B Units of measurement Mass flow rate unit of measurement description mass (totalized) ton per hour ton per day kilogram per hour kg/h kg/min kilogram per minute kg/s kilogram per second gram per second pound per day lb/d lb/h pound per hour...
Page 224: C Reference
Annex C Reference FLUXUS F72* 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 225 Annex FLUXUS F72* C Reference 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 226 Annex C Reference FLUXUS F72* Typical properties of selected fluids at 20 °C C.3.1 Mixtures with non-changing composition fluid explanation sound density kinematic valid range of speed [kg/m viscosity fluid data [m/s] [°C] Water liquid water 1482 0...350 Propane liquefied under pressure -180...+97 liquefied under pressure, -135...+152...
Page 227: Sulfuric Acid
Annex FLUXUS F72* C Reference C.3.2 Mixtures with changing composition fluid explanation parametri- sound density kinematic valid range of zation speed [kg/m viscosity fluid data [m/s] ethylene glycol proportion 1482...1710 999...1132 1...23 -30...+150 °C Glycol/H2O of glycol 0...100 % Petroleum hydrocarbon API gravity 530...1800...
Page 228 Annex C Reference FLUXUS F72* 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/m³] [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 1.013...
Page 229: D Legal Information - Open Source Licenses
Annex FLUXUS F72* D Legal information – open source licenses Legal information – open source licenses The software of this product contains the following open-source software which is subject to the Apache license version 2.0 dated January 2004: 1. uC-TCP-IP https://github.com/weston-embedded/uC-TCP-IP/tree/v3.06.01 https://github.com/weston-embedded/uC-TCP-IP/blob/v3.06.01/LICENSE https://github.com/weston-embedded/uC-TCP-IP/blob/v3.06.01/NOTICE...
Page 230 Annex D Legal information – open source licenses FLUXUS F72* 3. uC-DHCPc https://github.com/weston-embedded/uC-DHCPc/tree/v2.11.01 https://github.com/weston-embedded/uC-DHCPc/blob/v2.11.01/LICENSE https://github.com/weston-embedded/uC-DHCPc/blob/v2.11.01/NOTICE ATTENTION ALL USERS OF THIS REPOSITORY: The original work found in this repository is provided by Silicon Labs under the Apache License, Version 2.0. Any third party may contribute derivative works to the original work in which modifications are clearly identified as being licensed under: (1) the Apache License, Version 2.0 or a compatible open source license;...
Page 231 Annex FLUXUS F72* D Legal information – open source licenses TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. "Licensor"...
Page 232 Annex D Legal information – open source licenses FLUXUS F72* (d) If the Work includes a "NOTICE" text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works;...
Page 233: Conformity Declarations
Annex FLUXUS F72* E Conformity declarations Conformity declarations For EU declaration of conformity according to ATEX directive, see document SIFLUXUS. For the UK declaration of conformity according to the legal UK regulations, see document SI_UKx78xx. UMFLUXUS_F72xV2-2EN, 2024-03-01...
Page 234 Annex E Conformity declarations FLUXUS F72* 2024-03-01, UMFLUXUS_F72xV2-2EN...
Page 238 Emerson Terms and Conditions of Sale are available upon request. The Emerson logo is a trademark and service mark of Emerson Electric Co. Flexim is a mark of one of the Emerson family of companies. All other marks are the property of their respective...

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