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Flexim FLUXUS G831ST-HT, Operating Instruction

The Flexim FLUXUS G831ST-HT is a state-of-the-art heat flow meter for precise measurement of temperature and flow rates in industrial applications. Ensure optimal performance by following the Operating Instructions manual available for free download from our website. Maximize efficiency and accuracy with this advanced technology.

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FLEXIM GmbH
Boxberger Straße 4
12681 Berlin
Germany

Tel.: +49 (30) 936 67 660
Fax: +49 (30) 936 67 680
E-mail: [email protected]
www.flexim.com

FLUXUS is a registered trademark of FLEXIM GmbH.

Operating instruction for
FLUXUS G831ST-HT
UMFLUXUS_G831ST-HTV1-0EN, 2021-06-01
Article number: 22811
Copyright (©) FLEXIM GmbH 2021
Subject to change without prior notice.

Summary of Contents for FLUXUS G831ST-HT

Page 1: ...FLUXUS G831ST HT UMFLUXUS_G831ST HTV1 0EN Operating instruction...

Page 2: ...Fax 49 30 936 67 680 E mail info flexim com www flexim com FLUXUS is a registered trademark of FLEXIM GmbH Operating instruction for FLUXUS G831ST HT UMFLUXUS_G831ST HTV1 0EN 2021 06 01 Article number...

Page 3: ...nt principle 12 3 2 Measurement arrangements 14 3 3 Acoustic penetration 15 3 4 Undisturbed flow profile 15 4 Product description 17 4 1 Measuring system 17 4 2 Handling concept 17 4 3 Display 19 4 4...

Page 4: ...0 6 Problems with the totalizers 97 11 Maintenance and cleaning 98 11 1 Maintenance 99 11 2 Cleaning 99 11 3 Calibration 99 11 4 Examination of the O ring 100 11 5 Examination of the thread on the fla...

Page 5: ...meter 125 17 4 Remote functions 126 17 5 Event triggers 127 17 6 Event protocol 131 18 Settings 132 18 1 Dialogs and menus 132 18 2 Measurement settings 134 18 3 Units of measurement 135 18 4 Material...

Page 6: ...Table of contents FLUXUS G831ST HT 2021 06 01 UMFLUXUS_G831ST HTV1 0EN 6...

Page 7: ...ormation or miss information please inform us We will be grateful for any suggestions and comments regarding the concept and your experience working with the measuring equipment If you have any sugges...

Page 8: ...mages 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 If t...

Page 9: ...er and accessory combinations not intended by FLEXIM installation of the transmitter transducers and accessories in explosive atmospheres they are not approved for any work on the measuring equipment...

Page 10: ...60947 3 has to be installed as disconnecting device The equipment switch has to disconnect all live wires The ground conductor connection must not be interrupted The equipment switch has to be easily...

Page 11: ...d box Position the transmitter transducers and accessories in the middle of the cardboard box Fill any voids with appropriate packaging material e g paper foam bubble wrap Protect the cardboard box ag...

Page 12: ...any turbulence There is no mixing between the parallel flowing layers of the fluid Turbulent flow A flow with turbulences swirling of the fluid In technical applications the flow in the pipe is mostly...

Page 13: ...iers A and B with a time offset t so that the modulation patterns of the ultrasonic signals of measuring barrier A and B are also offset by t This time offset t is measured by means of cross correlati...

Page 14: ...ween the measuring barriers The measuring barrier distance is measured between the inner edges of the emitters and or receivers of measuring barrier A and B Transducer distance The transducer distance...

Page 15: ...rs can be mounted laterally on the pipe allowing the sound waves to propagate horizontally in the pipe Thus solids or liquid on the bottom of the pipe are prevented from influencing the propagation of...

Page 16: ...pipe diameter at the measuring point l recommended distance between disturbance and transducer position disturbance 90 elbow inlet l 10 D outlet l 5 D disturbance 2 90 elbow on different planes inlet...

Page 17: ...n the front side of the upper housing The keys are operated using a magnetic pen with the housing being closed By pressing the following program branches are displayed consecutively Parameters Measure...

Page 18: ...s not possible during the measurement The measurement has to be stopped in order to change the parameter settings or configuration of the transmitter outputs Tab 4 1 Description of the program branche...

Page 19: ...rameters 1 program branch 2 currently edited menu item 3 area for scroll lists selection fields or input fields Tab 4 2 Navigation horizontal scroll list vertical scroll list input fields scroll horiz...

Page 20: ...the measurement display of scroll list Stop measurement Show parameters Show measurement Tab 4 4 Navigation scroll to the right or up through a scroll list scroll down through a scroll list CLR scroll...

Page 21: ...uipment outdoors Seal all openings with blind plugs Protect the measuring equipment against sunlight Storage the measuring equipment in a dry place without dust and within the valid temperature range...

Page 22: ...ng gases risk of injuries because of cramped conditions Wear the required personal protective equipment Observe the applicable rules Warning Touching live parts Electric shock or arc faults can led to...

Page 23: ...smitter has 3 set screws which have to be unscrewed before the housings can be opened After the installation of the transmitter make sure that the housings are closed correctly and that the set screws...

Page 24: ...er can fall down during installation There is a danger of crushing body parts or damaging the measuring equipment Secure the transmitter against falling Wear the required personal protective equipment...

Page 25: ...to the instrument mounting plate Mounting on a pipe 2 The instrument mounting plate 2 is fixed to the pipe using tension straps Fix the instrument mounting plate 2 to the pipe using the tension straps...

Page 26: ...of the pipe fluid Avoid measuring points in the vicinity of distorted or defective areas of the pipe or in the vicinity of welds Avoid measuring points with deposit formation in the pipe Make sure th...

Page 27: ...measuring point is situated near an elbow the following measurement arrangements are recommended for the selection of the sound beam plane Caution Contact with grinding dust This may result in injurie...

Page 28: ...engravings on them form an arrow pointing in the flow direction The transducer cables show in opposite directions The transducer distance is measured between the inner edges of the transducers of a me...

Page 29: ...at the distance x from transducer A1 if possible with an accuracy of 1 mm Mount the transducer B2 at the distance x from transducer A2 if possible with an accuracy of 1 mm Check whether the transduce...

Page 30: ...ucer pair in its own pair of rails Overview of the mounting steps step 1 disassembly of the transducer mounting fixture Variofix L step 2 fixation of the clasps to the tension straps step 3 fixation o...

Page 31: ...nsion strap to length pipe circumference at least 120 mm Insert approx 100 mm of the tension strap into part 1 and 2 of the ratchet clasp see Fig 6 10 a Bend the tension strap Insert the tension strap...

Page 32: ...is check whether the distance between the tension strap clamps is half the pipe circumference Tighten the tension strap Tighten the clasp screw Quick release clasp Insert the tension strap into its cl...

Page 33: ...rap clamps are as exactly as possible opposite each other To do this check whether the distance between the tension strap clamps is half the pipe circumference Place the tension strap around the pipe...

Page 34: ...he tension strap Repeat the steps to fix the second rail on the opposite side of the pipe Make sure that both tension strap clamps are as exactly as possible opposite each other To do this check wheth...

Page 35: ...the tension strap into the tension strap clamp 2 and the metal spring Place the tension strap around the pipe and insert it into the tension strap clamp on the opposite side and the tension strap see...

Page 36: ...of the tension strap clamps 2 but not too firmly in order not to damage the tension strap see Fig 6 19 Repeat the steps for fixing the second pair of rails When positioning the second pair of rails o...

Page 37: ...e transducer distance of transducer pair B corresponds to the value displayed by the transmitter Fix the transducer cables with the strain relief clamp to protect them from mechanical strain see Fig 6...

Page 38: ...iers 1 cover 2 strain relief clamp 3 equipotential bonding terminal x distance between measuring barriers Notice Make sure that the coupling foil remains on the contact surface of the transducers For...

Page 39: ...y 2 pairs of rails see Tab 6 1 In the following the installation of 1 pair of rails in diagonal arrangement is described Overview of the mounting steps step 1 disassembly of the transducer mounting fi...

Page 40: ...and lift it off Step 2 Mounting of the rail Select the installation instruction of the supplied clasp Mounting of the rail without a clasp Cut the tension strap to length pipe circumference at least 1...

Page 41: ...ach other To do this check whether the distance between the tension strap clamps is half the pipe circumference Insert the long end of the tension strap into the second slot of the tension strap clamp...

Page 42: ...possible Mount the metal spring opposite the ratchet clasp Make sure that the 2 tension strap clamps are as exactly as possible opposite each other To do this check whether the distance between the te...

Page 43: ...itter and receiver of transducer pair B in opposite rails The transducer cables show in the same direction as the transducer cables of transducer pair A Adjust the measuring barrier distance displayed...

Page 44: ...f the cover Remove the cover from the mounted transducer mounting fixture Variofix C as follows Loosen the screws see Fig 6 40 Use a lever tool to remove the cover Insert the lever tool in one of the...

Page 45: ...WaveInjector The WaveInjector is a transducer mounting fixture for the ultrasonic flow measurement at extreme temperatures For the installation of the WaveInjector see document SUFLUXUS_WI Fig 6 41 Re...

Page 46: ...the tension strap to length pipe circumference at least 120 mm Make sure that part 2 of the clasp is on top of part 1 see Fig 6 43 a The hooks of part 2 have to be on the outer side of the clasp Pull...

Page 47: ...ature probe on the pipe see Fig 6 44 Place the tension strap around the temperature probe and the pipe Push the tension strap through part 2 and 1 of the clasp Tighten the tension strap and engage it...

Page 48: ...tion the temperature probe on the pipe see Fig 6 44 Place the tension strap around the temperature probe and the pipe Insert the tension strap into the clasp Tighten the tension strap Tighten the scre...

Page 49: ...alified personnel Danger Working in mines or cramped confines Risk of intoxication and or asphyxiation because of emerging gases risk of injuries because of cramped conditions Wear the required person...

Page 50: ...the upper housing Important Do not open the housings using objects which may damage the thread or housing gasket Fig 7 1 Connections of the transmitter 1 upper housing increased safety Ex e 2 upper h...

Page 51: ...ables 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 transducer module has to be replaced...

Page 52: ...he transmitter Important The degree of protection of the transmitter is only ensured if all cables are tightly fitted using cable glands and the housing is firmly screwed Tab 7 1 Terminal assignment t...

Page 53: ...he basic part into the transmitter housing Insert the extension cable into the housing Fix the cable gland by screwing the cap nut onto the basic part Connect the extension cable to the terminals of t...

Page 54: ...ransducer cable into the junction box Fix the transducer cable by tightening the cable gland Connect the transducer cable to the terminals of the junction box Tab 7 3 Terminal assignment terminal conn...

Page 55: ...ion cable The compression part remains in the cap nut Push the extension cable through the cap nut and the compression part Prepare the extension cable Shorten the external shield and brush it back ov...

Page 56: ...on cable The compression part remains in the cap nut Push the extension cable through the cap nut the compression part and the basic part Insert the extension cable into the junction box Prepare the e...

Page 57: ...emain completely insulated up to the shield terminal Tab 7 5 Terminal assignment terminal connection extension cable TV white or marked cable core TVS white or marked cable internal shield TRS brown c...

Page 58: ...the transducer modules into their sockets Push the module into the housing Close the housing Make sure that the housing is closed correctly and that the set screws are tightened Connect the transmitte...

Page 59: ...e pass the permissible limit The equipotential bonding terminal serves as functional earth of the transmitter Connect the power cable to the transmitter see section 7 2 1 Fig 7 9 and Tab 7 6 Important...

Page 60: ...sealing ring side of the basic part into the transmitter housing Fix the cable gland by screwing the cap nut onto the basic part Connect the cable to the terminals of the transmitter 7 3 Outputs Conne...

Page 61: ...lt current Ifault 3 2 3 5 mA current output Ix HART intrinsically safe passive Ui 29 V Ii 100 mA Pi 0 725 W Ci 1 nF Li 50 nH Uext Ui Uext 0 022 A 9 V adjustable fault current no valid measured value n...

Page 62: ...nent short circuit can lead to the destruction of the current input Tab 7 8 Connection of a passive current sink input transmitter external circuit explanation internal circuit connection current inpu...

Page 63: ...Connection of the inputs to the transmitter 1 connection of the temperature probe Tab 7 9 Temperature input circuit input transmitter external circuit explanation internal circuit connection temperat...

Page 64: ...able into the housing Screw the sealing ring side of the reducer into the transmitter housing Screw the basic part into the reducer Fix the cable gland by screwing the cap nut onto the basic part Conn...

Page 65: ...the extension cable to the terminals of the transmitter 7 5 3 Connection with junction box Connection of the extension cable to the transmitter Remove the blind plug for the connection of the tempera...

Page 66: ...al shield and brush it back over the compression part Screw the sealing ring side of the reducer into the junction box Screw the basic part into the reducer Insert the extension cable into the junctio...

Page 67: ...the cap nut and the compression part Prepare the cable Shorten the external shield and brush it back over the compression part Screw the sealing ring side of the reducer into the junction box Screw th...

Page 68: ...face 7 6 1 USB interface The transmitter can be connected directly to the PC via the USB interface The USB interface may only be connected outside the explosive atmosphere housing cover open Connect t...

Page 69: ...ies The measuring equipment can be damaged Prior to any work on the transmitter e g installation dismounting connection start up the transmitter has to be disconnected from the power supply Caution Sa...

Page 70: ...anguages are displayed Select a language Press ENTER The menus are displayed in the selected language The current time is displayed Press ENTER to confirm the time or set the current time via the nume...

Page 71: ...etailed overview of the menu structure see annex A Notice The parameters cannot be changed during the measurement The measurement has to be stopped in order to change the parameters Tab 8 1 Operation...

Page 72: ...ed If so it has to be deactivated Enter the 6 digit key lock code Press ENTER If a measurement is running it will be stopped It will be asked whether the initial settings are to be carried out If Yes...

Page 73: ...through the list Press BRK to return to the menu item System settings The following information regarding the transmitter is displayed Special functions System settings Transmitter info display descr...

Page 74: ...or the use in explosive atmospheres see document SIFLUXUS 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 75: ...ransducers and the transducer module are connected to the transmitter Notice All settings changed in this program branch will be stored at the beginning of the measurement Notice Avoid a simultaneous...

Page 76: ...is possible to enter the pipe circumference instead of the outer pipe diameter Pipe circumference Activate the input of the pipe circumference in the menu item Special functions Dialogs Menus Pipe cir...

Page 77: ...he calculation Enter the roughness of the pipe material in case the pipe has no lining Press ENTER This display will only be indicated if Other material is selected For the roughness of some materials...

Page 78: ...ickness of the lining Press ENTER This display will only be indicated if Yes is selected in the menu item Lining Roughness The flow profile of the fluid is influenced by the roughness of the inner pip...

Page 79: ...he transducers In case of a temperature range enter the average fluid temperature Press ENTER Fluid pressure The fluid pressure is used for the interpolation of the sound speed and the gas compressibi...

Page 80: ...of the damping factor Each displayed measured value is a floating average of the last x seconds with x being the damping factor If 0 s is entered as damping factor no average is calculated The value o...

Page 81: ...ENTER until the menu item NAMUR NE43 is displayed Select Yes to enable NAMUR NE43 Press ENTER The measured value the status value or an event value can be transmitted via the different outputs In the...

Page 82: ...zer for the mass flow rate in positive flow direction Mass totalizer for the mass flow rate in negative flow direction Mass difference of the totalizers for the positive and negative flow direction Fl...

Page 83: ...ror output An error value can be defined which is output if the source item cannot be measured Select a list item for the error output Press ENTER If Other value is selected or the function NAMUR NE43...

Page 84: ...ut 4 20 mA error delay td 0 The volumetric flow rate cannot be measured during the time interval t0 t1 The error value will be output Tab 9 3 Examples for the error output output range 4 20 mA list it...

Page 85: ...erminals for the connection of the output are displayed By pressing or further information is displayed Press ENTER Output function test The function of the output can now be tested Connect an externa...

Page 86: ...r message will be displayed if the output range is smaller The next possible value will be displayed Status OK The status of the output signal is defined which is to be output if the measured value is...

Page 87: ...repeat the test or Finish to display the next menu item Press ENTER 9 2 5 3 Output of an event value Output range Select a list item 4 20 mA Other range Press ENTER If Other range is selected enter th...

Page 88: ...the entered value the output functions correctly Select Repeat to repeat the test or Finish to display the next menu item Press ENTER Select Yes to test the status of the output signal Select No to d...

Page 89: ...oint Press ENTER For the activation of text input see Special functions Dialogs Menus Measuring point no Input of the max flow The expected max flow is needed to calculate the recommended distance bet...

Page 90: ...to transducer pair A Make sure to keep a few millimeters distance between the transducers of measuring barrier A and B The transducers should not touch Enter the distance between the measuring barrie...

Page 91: ...l to the transducer temperature display Fig 9 2 Display of measured values 1 program branch status indicators 2 display toggling between physical quantity and fluid 3 measured value 4 further physical...

Page 92: ...s deactivated line 4 indicates when the data logger will be full in case all settings are kept If the ringbuffer is activated line 4 indicates how long measurement data can still be stored without los...

Page 93: ...command is displayed Totalizers Select the list item Totalizers Press ENTER The following scroll list appears Fig 9 6 Scroll list in the program branch Measurement Measurement Show measurement Tab 9...

Page 94: ...his display will only be indicated if an event trigger has been parameterized and at least one event trigger has also been triggered 9 8 Stop of the measurement Press BRK during the measurement The fo...

Page 95: ...ases risk of injuries because of cramped conditions Wear the required personal protective equipment Observe the applicable rules Caution Safety and accident prevention regulations for electrical syste...

Page 96: ...interrogation point is displayed after the physical quantity The LED lights red after starting the measurement Check whether the entered parameters are correct especially the outer pipe diameter the p...

Page 97: ...The defined upper limit of the flow velocity is too low All measured flow velocities that are greater than the upper limit will be ignored and marked as invalid All quantities deviated from the flow...

Page 98: ...merging gases risk of injuries because of cramped conditions Wear the required personal protective equipment Observe the applicable rules Warning Touching live parts Electric shock or arc faults can l...

Page 99: ...ible wear the transducers were used for a prolonged period at high temperatures several months 130 C for normal transducers or 200 C for high temperature transducers In order to realize a recalibratio...

Page 100: ...ages Housings with damaged threads has to be replaced Danger Risk of explosion when using the transmitter in explosive atmospheres This may result in personal or material damage or dangerous situation...

Page 101: ...have to be replaced by FLEXIM personnel immediately 11 7 Firmware update A firmware update is carried out with FluxDiagReader or FluxDiag option For the connection of the transmitter to a PC see sect...

Page 102: ...l Danger Working in mines or cramped confines Risk of intoxication and or asphyxiation because of emerging gases risk of injuries because of cramped conditions Wear the required personal protective eq...

Page 103: ...the list item Special settings Press ENTER The menu items of the user mode are consecutively displayed Special functions System settings User mode StandardUser ExpertUser SuperUser SuperUser ext see a...

Page 104: ...ow Press ENTER All values of the flow velocity for the negative flow direction as absolute value below this absolute limit are set to zero Enter the cut off flow as absolute value Press ENTER 13 1 2 M...

Page 105: ...and temperature are independently available Press ENTER If Tf Pf or Pf Tf is selected the information concerning the calculated quantity will be displayed in the program branch Parameters after the f...

Page 106: ...Off to deactivate high voltage Press ENTER 13 1 6 Averaging factor of the measurement The averaging factor of the measurement defines a time range in which the values are averaged for calculation A h...

Page 107: ...to define a limit for the flow velocity Press ENTER 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 mark...

Page 108: ...s ENTER Select a channel for which the profile correction is to be set Select the menu item Special settings Press ENTER until the menu item Profile correction is displayed Select Off to deactivate th...

Page 109: ...on Select Default if no customized inputs are to be made Select On to define the values for the calibration Press ENTER Enter the factor for the linear calibration Press ENTER Enter the offset for the...

Page 110: ...s is measured before the calculation of the derived quantities it will be corrected as follows vcor 1 1 5 m s 0 1 m s 5 4 m s Example factor 1 offset 0 Only the sign of the measured values changes Not...

Page 111: ...bled input Select No to uninstall an already configured input and to return to the previous menu item Press ENTER 14 1 1 Temperature inputs When configuring the temperature input the temperature probe...

Page 112: ...e is defined Select a list item 0 20 mA 4 20 mA Other range Press ENTER If Other range is selected enter the values Input MIN and Input MAX Measuring range Enter the lowest expected measured value The...

Page 113: ...ss ENTER This display will only be indicated if MAX x limit or MIN x limit is selected It is possible to define a hysteresis to avoid a constant switching of the event trigger The event trigger will b...

Page 114: ...tem Press ENTER Select Yes to test the assignment of the measured value to the input signal Select No to display the next menu item Press ENTER If the transmitter displays a value here Temperature the...

Page 115: ...uration Press ENTER until the menu item Start storing is displayed Select the moment at which the storing has to start Special functions Data logger Configuration Start storing Ringbuffer On Off Stora...

Page 116: ...ed values in case the event does not occur Press ENTER Select Off if no measured values are to be stored as long as the event does not occur Press ENTER Select in the scroll list a storage rate for st...

Page 117: ...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 over...

Page 118: ...ues Select Yes to store the value Select No in order not to store the value Special functions Data logger Configuration Storage mode Notice The storage mode does not affect the outputs Notice Storage...

Page 119: ...l date date on which the data logger will be full This display will only be indicated if the measurement has started and the ringbuffer is deactivated Full time time at which the data logger will be f...

Page 120: ...transmitted from the transmitter to the PC using the FluxDiagReader program The FluxDiagReader program is used for further processing of the data It allows to read measured values setup settings and...

Page 121: ...aces e g 74890046 03 The number of decimal places max 4 can be defined Select the menu item Totalizers in the program branch Special functions Press ENTER Select Automatic if the number of decimal pla...

Page 122: ...lizer overflow The overflow behavior of the totalizers can be set Without overflow The value of the totalizer increases to the internal limit of 1038 The values will be displayed as exponential number...

Page 123: ...be displayed in the status line during the measurement Select the menu item Totalizers in the program branch Special functions Press ENTER until the menu item Show Q is displayed Select Yes to displa...

Page 124: ...n If the ringbuffer is deactivated up to 50 snaps can be stored Press ENTER Select Yes if the auto snap has to be activated If the auto snap is activated snaps are automatically stored during a measur...

Page 125: ...ucer type Select the program branch Special functions Press ENTER Select Pipe diameter MIN Press ENTER It is possible to define a min pipe diameter for all relevant transducer frequencies Select Defau...

Page 126: ...lect a list item Reset meas val Reset totalizers Stop totalizers If an input or event trigger has already been assigned to this function this is displayed as follows Reset meas val R1 Reset of measure...

Page 127: ...tion is no longer met Select the input which is to be used to trigger the selected remote function Press ENTER Select No linkage in order to deactivate the remote function Press ENTER 17 5 Event trigg...

Page 128: ...r the cross correlation function Transducer temp transducer temperature Miscellaneous Custom Input 1 measured values of input quantities e g temperature density which are not used for calculation In t...

Page 129: ...limit Enter the value for the hysteresis If zero is entered no hysteresis is used Press ENTER Enter the center of the range in which the event trigger has to be switched Press ENTER Enter the width o...

Page 130: ...longer met If a measurement is stopped all event triggers will be deactivated and the corresponding process outputs will be de energized independently of the programmed idle state 17 5 3 Event trigger...

Page 131: ...u item Event log Press ENTER A list is displayed containing all error messages since the last time the transmitter was switched on Press to select an error message Press ENTER The display indicates th...

Page 132: ...2 mm Enter the pipe circumference The limits for the pipe circumference are calculated on the basis of the limits for the outer pipe diameter Press ENTER During the next scroll through the program br...

Page 133: ...anges Press ENTER In the program branch Measurement the recommended transducer distance will be displayed in parenthesis below the entered transducer distance Display of the last value Select the menu...

Page 134: ...series of measured values has to be entered in the program branch Options Swift damping If Swift damping is activated each displayed measured value is a floating average of the last x seconds with x...

Page 135: ...Select a barrel type Press ENTER 18 4 Material and fluid scroll list At delivery all stored materials are displayed in a scroll list in the menu item Parameters Pipe material For the sake of clarity m...

Page 136: ...s parameter record Select the menu item Param record memo Press ENTER Select Save current record Press ENTER Enter the name the parameter record has to be stored with Press ENTER 18 5 2 Load of a para...

Page 137: ...Special functions Press ENTER Select the menu item HotCode Press ENTER Enter the HotCode via the keyboard For the input of numbers see section 4 4 Press ENTER Special functions System settings Display...

Page 138: ...ode Select the menu item System settings in the program branch Special functions Press ENTER Select Key lock Press ENTER Enter a 6 digit key lock code For the input of numbers see section 4 4 Press EN...

Page 139: ...tivated key lock The following table gives an overview of the transmitter functions that are not available when the key lock is activated Special functions System settings Key lock measurement not sta...

Page 140: ...18 Settings 18 8 Key lock FLUXUS G831ST HT 2021 06 01 UMFLUXUS_G831ST HTV1 0EN 140...

Page 141: ...Expected max flow Units of measurement Inputs Pipe material Transducer distance A Outputs Outputs Pipe wall thickness Barrier distance Assign inputs Measurement Lining Transducer distance B Remote fun...

Page 142: ...eters Transducer Connected transd Select transducer Outer diameter 1 Pipe material Pipe wall thickness Lining Yes No Lining 2 1 Coating 1 Roughness Automatic Customized Fluid 2 Fluid temp Fluid pressu...

Page 143: ...tings Options Measurement Units of measurement Physical quantity Flow velocity Operation vol flow Mass flow rate Flow velocity Volumetric flow rate Volume total Unit of measurement Mass flow rate Damp...

Page 144: ...val Series Occup Logger Immediately Full 5 minutes Full 10 minutes Full 15 minutes Full 30 minutes Full hour Event based 1 Yes No Storage rate w o trig Decimal places Storage rate trig Buffer time Sto...

Page 145: ...06 01 Measurement start Parameters Measurement Installation Start measurement Measuring point no Expected max flow Transducer distance A Barrier distance Transducer distance B Parameter search Measure...

Page 146: ...ies Diagnostic values Miscellaneous Event trigger Status Values R1 R2 R3 R4 Output range Output range Status OK Error value Measured values 1 Absolute value Sign Start of meas range Start of meas rang...

Page 147: ...ure Current Temperature Tx Enable No Yes Pt100 Pt1000 Temperature offset 1 No Yes Temperature Trigger value No Yes Function Within range Out of range MAX x limit MIN x limit ERR x fail Range center Tr...

Page 148: ...ized Current Input name Unit of measurement Decimal places Input range 0 20 mA 4 20 mA Other range Input MIN I Input MAX I Start of meas range End of meas range Error value Yes No Trigger value No Yes...

Page 149: ...f Default Customized Off Profile correction 2 Flow velocity limit Default On Off Default Customized Off Multi point calibration 3 Signal search range High voltage On Off Averaging factor Crest factor...

Page 150: ...tities Special functions Options Temperature Current Flow quantities Sound speed Totalizers Fluid properties Diagnostic values Condition Event trigger R1 R2 R3 R4 Switching condition Holding behavior...

Page 151: ...alues Miscellaneous Function MAX x limit MIN x limit Within range Out of range ERR x fail Type Non hold Hold for a while Hold Hold interval Options 1 Outputs Within range Out of range MAX MIN ERR Sele...

Page 152: ...range ERR x fail MAX x limit MIN x limit ERR x fail Type Range center Trigger value Non hold Hold for a while Hold Range width Hysteresis Hold interval Glitch interval 1 Within range Out of range MAX...

Page 153: ...ERR x fail Yes Out of range ERR x fail MAX x limit MIN x limit ERR x fail Type Range center Trigger value Non hold Hold for a while Hold Range width Hysteresis Hold interval Glitch interval 1 Within...

Page 154: ...t of measurement description bar a bar absolute bar g bar relative psi a pound per square inch absolute psi g pound per square inch relative unit of measurement description g cm3 gram per cubic centim...

Page 155: ...gallon per hour gal USgpm US gal m gallon per minute gal USgps US gal s gallon per second gal KGPM US Kgal m kilogallon per minute kgal MGD US Mgal d million gallons per day Mgal CFD cubic foot per d...

Page 156: ...h pound per hour lb lb m pound per minute lb lb s pound per second lb klb h kilopound per hour klb klb m kilopound per minute klb 1 lb 453 59237 g 1 t 1000 kg unit of measurement description operating...

Page 157: ...rve as an orientation C 2 Typical roughness values of pipes The values are based on experience and measurements material display explanation ctrans m s clong m s cflow Carbon Steel steel normal 3230 5...

Page 158: ...1ST HT AA1 HART intrinsically safe 11 12 current output I1 intrinsically safe 11 12 G831ST HT AA2 HART intrinsically safe 11 12 current output I1 intrinsically safe 11 12 temperature input T1 intrinsi...

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