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5 Selection of the Measuring Point

FLUXUS WD100, WD200

UMFLUXUS_F5WDV1-1EN, 2016-04-08

19

5.2

Undisturbed Flow Profile

Some flow elements (elbows, slide valves, valves, control valves, pumps, reducers, diffusers, etc.) distort the flow profile
in their vicinity. The axisymmetrical flow profile needed for correct measurement is no longer given. A careful selection of
the measuring point helps to reduce the impact of disturbance sources.
It is most important that the measuring point is chosen at a sufficient distance from any disturbance sources. Only then it
can be assumed that the flow profile in the pipe is fully developed. However, measuring results can be obtained even if the
recommended distance to disturbance sources cannot be observed for practical reasons.
Recommended straight inlet and outlet pipe lengths for different types of flow disturbance sources are shown in the ex-
amples in Tab. 5.2.

Tab. 5.2: Recommended distance from disturbance sources; D – nominal pipe diameter at the measuring point, l – recommended distance

disturbance source: 90° elbow

supply line: l 

≥

 10 D

return line: l 

≥

 5 D

disturbance source: 2x 90° elbows in same plane

supply line: l 

≥

 25 D

return line: l 

≥

 5 D

disturbance source: 2x 90° elbows in different planes

supply line: l 

≥

 40 D

return line: l 

≥

 5 D

l

l

l

l

l

l

Содержание FLUXUS WD100

Страница 1: ...User Manual UMFLUXUS_F5WDV1 1EN Ultrasonic Flowmeter for Water FLUXUS WD100 FLUXUS WD200...

Страница 2: ...Strasse 36 12681 Berlin Germany Phone 49 30 936 67 660 Fax 49 30 936 67 680 E mail flexim flexim de www flexim com User manual for FLUXUS WD100 WD200 UMFLUXUS_F5WDV1 1EN 2016 04 08 Firmware Version V6...

Страница 3: ...schnitt 8 5 The transmitter can be operated in the language of your choice see section 8 5 Il est possible de s lectionner la langue utilis e par le transmetteur l cran voir section 8 5 El caudal metr...

Страница 4: ...FLUXUS WD100 WD200 UMFLUXUS_F5WDV1 1EN 2016 04 08...

Страница 5: ...bow 22 6 Installation of the Transmitter 23 6 1 Location 23 6 2 Installation of the Transmitter 23 6 3 Connection of the Transducers 25 6 4 Connection of the Power Supply 31 6 5 Connection of the Outp...

Страница 6: ...Mode 69 14 1 Activation Deactivation 69 14 2 Defining the Flow Parameters 69 14 3 Limit of the Signal Amplification 71 14 4 Upper Limit of the Sound Speed 71 14 5 Detection of Long Measurement Failure...

Страница 7: ...Table of Contents FLUXUS WD100 WD200 UMFLUXUS_F5WDV1 1EN 2016 04 08 7 Annex A Menu Structure 87 B Units of Measurement 95 C Reference 100 D Declarations of Conformity 103...

Страница 8: ...FLUXUS WD100 WD200 Table of Contents 8 UMFLUXUS_F5WDV1 1EN 2016 04 08...

Страница 9: ...re marked as follows Observe these safety instructions 1 3 Warranty We warrant the reliability of the material and workmanship of FLUXUS for the term specified in the sales contract provid ed that the...

Страница 10: ...the measuring instrument it is important that great attention is paid to the instructions given in this user manual particularly to the following points Protect the transmitter from shocks Keep the tr...

Страница 11: ...cross sectional pipe area For an optimal measurement the flow profile has to be fully developed and axisymmetrical The shape of the flow profile depends on whether the flow is laminar or turbulent an...

Страница 12: ...ics correction factor is recalculated by the transmitter for each new measurement Volumetric flow rate v A The volume of the fluid that passes through the pipe per unit time The volumetric flow rate i...

Страница 13: ...ference t transducer emitter flow direction of the fluid sound path without flow sound path with flow pipe wall c c c c transducer receiver reduction in distance in the transducer flow direction of th...

Страница 14: ...l after crossing the pipe once The number of the sound paths is odd if the measurement is conducted in the diagonal arrangement see Fig 3 5 even if the measurement is conducted in the reflection arran...

Страница 15: ...plane The plane containing one two or more sound paths or beams see Fig 3 7 3 3 2 Examples Fig 3 7 Sound paths in one plane Diagonal arrangement with 1 beam Reflection arrangement with 1 beam 1 transd...

Страница 16: ...transmitter Stored data are not affected BRK interruption of the measurement and selection of the main menu Be careful not to stop a current measurement by inadvertently pressing key BRK Tab 4 2 Navig...

Страница 17: ...the measuring point has to be within the operating temperature range of the transducers see Technical Specifications Select the location of the transmitter within cable reach of the measuring point T...

Страница 18: ...pipe horizontally Thus solids at the bottom or gas bubbles in the pipe s upper part from will not influ ence the propagation of the signal correct disadvantageous Vertical pipe Select the measuring p...

Страница 19: ...es Only then it can be assumed that the flow profile in the pipe is fully developed However measuring results can be obtained even if the recommended distance to disturbance sources cannot be observed...

Страница 20: ...ine l 10 D disturbance source diffuser supply line l 30 D return line l 5 D disturbance source valve supply line l 40 D return line l 10 D disturbance source reducer supply line l 10 D return line l 5...

Страница 21: ...range compared to the reflection arrangement use in the presence of deposits on the inner pipe wall or with strongly attenuating fluids only 1 sound path smaller flow velocity and sound speed range c...

Страница 22: ...e elbow plane The elbow is upstream of the measuring point The sound beam plane see section 3 3 1 has an angle of 90 45 to the elbow plane The elbow is upstream of the measuring point With measurement...

Страница 23: ...he Housing Opening Loosen the 4 screws of the housing Open the front plate of the transmitter Remove the protection films from the window of the front plate inside and outside and from the display of...

Страница 24: ...e bottom side of the housing to the instrument mounting plate 3 Installation on a pipe 2 The mounting kit is fixed to the pipe with tension straps 5 instead of the shackle see Fig 6 3 Push the tension...

Страница 25: ...ansducer cable through the cap nut and the compression part Screw the gasket ring side of the basic part tightly into the housing Insert the transducer cable into the housing Fix the cable gland by sc...

Страница 26: ...S_F5WDV1 1EN 2016 04 08 Fig 6 6 Terminals of the transmitter Tab 6 1 Terminal assignment of FLUXUS WD100 WD200 terminal connection 10 transducer core 11 transducer inner shield 12 not connected 13 tra...

Страница 27: ...gasket ring side of the basic part tightly into the housing Insert the extension cable in the housing Fix the cable gland by screwing the cap nut on the basic part Connect the leads to the terminals o...

Страница 28: ...t remains in the cap nut Push the extension cable through the cap nut and the compression part Prepare the extension cable Cut the external shield and brush it back over the compression part Screw the...

Страница 29: ...remains in the cap nut Push the extension cable through the cap nut the compression part and the basic part of the cable gland Tab 6 3 Terminal assignment extension cable KL2 terminal connection TV wh...

Страница 30: ...e cap nut and the compression part Cut the external shield and brush it back over the compression part Screw the gasket ring side of the basic part tightly into the housing Insert the transducer cable...

Страница 31: ...t ring side of the basic part tightly into the housing Fix the cable gland by screwing the cap nut on the basic part see Fig 6 11 Connect the leads to the terminals of the transmitter see Fig 6 10 and...

Страница 32: ...6 6 Close the transmitter Screw the front plate onto the housing These settings can be changed For the installation of the outputs see section 15 1 For the activation of the outputs see section 15 3 1...

Страница 33: ...rs and Transducer Distance Mount the transducers onto the pipe in such way that the engravings on the transducers form an arrow see Fig 7 1 The transducer cables show in opposite directions For the de...

Страница 34: ...he outer sides of the cover outwards see Fig 7 5 In order to remove the spring clip from the rail slide it over the indentation on the rail and lift it off see Fig 7 6 Fig 7 4 Scope of delivery Fig 7...

Страница 35: ...7 8 It is not necessary to mount the metal spring on steel pipes on pipes with an outer pipe diameter 80 mm or on pipes that are not subjected to significant temperature fluctuations Place the tensio...

Страница 36: ...ipe circumference at least 120 mm Insert approx 100 mm of the tension strap into parts 1 and 2 of the ratchet clasp see Fig 7 11 a Bend the tension strap Insert the tension strap into part 1 of the ra...

Страница 37: ...e Fig 7 14 Tighten the tension strap Cut off the protruding tension strap see Fig 7 15 Tighten the screw of the ratchet clasp Repeat the steps for the second tension strap Put the rail on the tension...

Страница 38: ...ng the tensioning screws slightly The end of the screw has to be placed above the hole in the transducer see Fig 7 17 Correct the transducer distance if necessary see section 9 6 1 and section 9 6 2 T...

Страница 39: ...e as follows Use a lever tool to remove the cover Insert the lever tool in one of the four openings of the cover see Fig 7 20 Press the lever tool against the fixture Bend the cover outwards and relea...

Страница 40: ...as the transmitter is connected to the power supply the serial number of the trans mitter is displayed for a short time Data cannot be entered while the serial number is displayed After the transmitt...

Страница 41: ...d to the measurement For an overview of the program branches see figure below For a detailed overview of the menu structure see annex A SYSTEM settings contains the following menu items set clock dial...

Страница 42: ...splayed in the lower line Press key to scroll through the upper line and select a list item Press key to scroll through the lower line and select a value for the selected list item Press ENTER functio...

Страница 43: ...on the de fault language set by the manufacturer is activated 8 6 Interruption of the Power Supply As soon as the measurement begins all current measuring parameters will be stored in a non volatile I...

Страница 44: ...nd speed of some materials see annex C 1 Note During the parameter input the transducers have to be connected to the transmitter Note The parameters will only be stored when the program branch Paramet...

Страница 45: ...o is selected the next parameter will be displayed see section 9 1 5 Select the lining material If the material is not in the scroll list select Other Material Press ENTER Enter the sound speed of the...

Страница 46: ...r the missing pa rameters in the program branch Parameter Enter the measuring point number Press ENTER If arrows are displayed in the lower line on the right ASCII text can be entered If no arrows are...

Страница 47: ...rted The amplitude of the received signal is displayed by the bar graph S Shift a transducer slightly within the range of the recommended transducer distanceuntil the bar graph reaches its max length...

Страница 48: ...nt of the volumetric flow rate is m h For the selection of the values to be displayed and for the setting of the output options see chapter 10 For fur ther measuring functions see chapter 11 9 8 Detec...

Страница 49: ...ed values simultaneously one in each line of the display This does not affect totalizing transmission of the measured values etc The following information can be displayed in the upper line The measur...

Страница 50: ...fluid The expected sound speed is calculated on the basis of the fluid parameters fluid selected in the program branch Parameter temperature dependence ok is equal to the expected value 20 of the expe...

Страница 51: ...red transducer distance here 50 8 mm The optimum transducer distance might change during the measurement e g due to temperature fluctuations A deviation from the optimum transducer distance here 0 4 m...

Страница 52: ...g point can be determined There are two totalizers one for the positive flow direction one for the negative flow direction The unit of measurement used for totalizing corresponds to the volume or mass...

Страница 53: ...l be reset to zero automatically when 9999999999 is reached Select Special Funct SYSTEM settings Measuring Quant wrapping Independently of the setting the totalizers can be reset to zero manually This...

Страница 54: ...selected two values have to be entered If Cut off Flow absolut and user is selected only one value have to be entered Enter 0 zero to switch off the checking for outliers Enter a limit 0 to switch on...

Страница 55: ...ER If uncorr is selected it has to be confirmed each time the program branch Measuring is selected if the profile correction is to be used If no is selected the profile correction will be switched off...

Страница 56: ...gram code is valid the measurement will be stopped To execute a command it is sufficient to enter the first three digits of the program code access code Enter the first three digits of the program cod...

Страница 57: ...see section 12 1 1 The available data logger memory can be displayed see section 12 1 6 12 1 1 Activation Deactivation of the Data Logger 12 1 2 Setting the Storage Rate The storage rate is the freque...

Страница 58: ...storing of measured values Promptly Storing will be started immediately On full 5 min Storing will be started on the next full 5 minutes On full 10 min Storing will be started on the next full 10 min...

Страница 59: ...ored together with the measured values Press ENTER If on is selected and the data logger is activated the sound speed of the fluid will be stored together with the measured values Press ENTER If on is...

Страница 60: ...s display will be indicated Tab 12 1 Overview online transmission of data serial interface transmission of data see RS232 terminal program section 12 2 5 RS485 sender terminal program section 12 2 5 N...

Страница 61: ...n of data is to be activated Press ENTER until the menu item Serial Output is displayed Set the storage rate see section 12 1 2 Start the measurement The measuring point number will be requested see s...

Страница 62: ...TER This message will be displayed if the measuring signal is sufficient The progress of the transmission of data is displayed by a bar graph This error message will be displayed if an error has occur...

Страница 63: ...menu DUT Receive measuring values Wait until the data are transmitted Stop of the transmission of data Select the menu File Save Select the series of measurement to be stored Click on OK Select the p...

Страница 64: ...not be created Offline transmission of data During the offline output columns will only be created if at least one measured value is stored in the series of measured values Example DEVICE XXXX XXXXXXX...

Страница 65: ...he time or new to set the time again Press ENTER Select ok to confirm the date or new to set the date Press ENTER Press key to select the digit to be edited Press key to edit the selected digit Press...

Страница 66: ...rounding errors may occur Example entered pipe circumference 100 mm displayed outer pipe diameter 31 8 mm When the transmitter switches back to the display of the pipe circumference 99 9 mm will be di...

Страница 67: ...as the unit of measurement for the density Press ENTER This display will only be indicated if lb ft3 has not been selected as the unit of measure ment for the density Select mm2 s or cSt as the unit...

Страница 68: ...nt Select off to reset the totalizers to zero after a restart of the measurement Note All changes will be stored at the end of the dialog Select Special Funct SYSTEM settings Miscellaneous to set the...

Страница 69: ...ong measuring values or to a fail ure of the measurement when a new measuring point is set up It is displayed that the SuperUser mode is activated Press ENTER The main menu will be displayed It is dis...

Страница 70: ...flow velocity m slope range 2 000 2 000 n offset range 12 7 12 7 cm s vcor corrected flow velocity Note During the measurement it will not be displayed that the correction of the flow velocity is act...

Страница 71: ...rval Select Special Funct SYSTEM settings Measur ing Miscellaneous Press ENTER until the menu item Do not total if no meas is displayed Enter for each measuring channel the max signal amplification En...

Страница 72: ...4 7 Manual Reset of the Totalizers If the manual reset of the totalizers is activated the totalizers can be reset to zero during the measurement by pressing key C three times even if a program code is...

Страница 73: ...played 14 10 Display During the Measurement In the SuperUser mode the following information can be displayed during the measurement besides the normal informa tion see section 10 2 Select on to activa...

Страница 74: ...Select yes Press ENTER If the output has already been installed select no to reconfigure it or yes to uninstall the output and to return to the previous menu item to select another output Press ENTER...

Страница 75: ...ge The next possible value will be displayed Repeat the input Example IMAX IMIN 2 mA for a 4 20 mA current output Tab 15 2 Error output error value result Minimum output of the lower limit of the outp...

Страница 76: ...as to be within the limits of the output Press ENTER Note The settings will be stored at the end of the dialog The terminals for the connection of the output are displayed here P1 and P1 for the ac ti...

Страница 77: ...Output Test to test the de energized state of the output Press ENTER Measure the resistance at the output The value has to be high ohmic Select yes Press ENTER Select Opto Relay ON or Open collect ON...

Страница 78: ...1 1 Enter the highest expected measured value Full Scale Val is the measured value that corresponds to the upper limit of the output range as defined in section 15 1 1 Example output current output ou...

Страница 79: ...the program branch Output Options if a pulse output has been installed Select the program branch Output Options Press ENTER until Pulse Output is dis played Select yes to activate the output Press EN...

Страница 80: ...e switching condition is true and de energized if idle NC Cont The alarm is de energized if the switching condition is true and energized if idle Note If no measurement is made all alarms will be de e...

Страница 81: ...s The limits however will be com pared to the non rounded measured values This might cause an apparent switching delay when the measured value changes marginally less than two decimal places In this c...

Страница 82: ...ond to avoid humming i e fluctua tion of the measured values around the value of the switching condition An alarm output of the type NON HOLD will be activated if the switching condition is met It wil...

Страница 83: ...switching Select the menu item SHOW RELAIS STAT Select on to activate the indication of the alarm state The indication of the alarm state is structured as follows RX where X is the number of the alar...

Страница 84: ...ntact FLEXIM A measurement is impossible or the measured values substantially differ from the expected values see section 16 1 The values of the totalizer are wrong see section 16 6 16 1 Problems with...

Страница 85: ...3 Maximum Acoustic Contact Observe the instructions in chapter 7 16 4 Application Specific Problems The entered sound speed of the fluid is wrong The entered sound speed is used to calculate the tran...

Страница 86: ...to measure at low flow velocities The entered pipe roughness is not appropriate The flow velocity of the fluid is outside the measuring range of the transmitter The measuring point is not appropriate...

Страница 87: ...Other Material has been selected selection whether the pipe is lined selection of the lining material This display will only be indicated if Lining yes has been selected input of the sound speed of th...

Страница 88: ...of the data logger selection of the storage rate for storing measured values in the data logger This display will only be indicated if Output Options Store Meas Data and or Serial Output are activate...

Страница 89: ...ion of the physical quantity to be monitored This display will only be indicated for R1 if Alarm Output is activated input of the upper limit of the physical quantity to be monitored This display will...

Страница 90: ...tion of the error value delay damping The damping factor will be used edit The menu item for the input of the error value delay in the program branch Output Options will be activated x activation of t...

Страница 91: ...Cut off Flow sign and Cut off Flow user has been selected x input of the cut off flow for negative measured values range 12 7 0 cm s default 2 5 cm s This display will only be indicated if Cut off Flo...

Страница 92: ...on x activation of the manual reset of the totalizers This display will only be indicated if the SuperUser mode is activated x activation of the display of the sum of the totalizers This display will...

Страница 93: ...etting of the contrast setting of the contrast of the display confirmation that a HotCode has to be entered input of a HotCode Instrum Inform selection of the displays for information about the transm...

Страница 94: ...tored in the data log ger Program Code selection of the displays for the input of a program code defining a program code input of the break code program code input of the access code the first three d...

Страница 95: ...te bar g bar relative psi a pound per square inch absolute psi g pound per square inch relative Density unit of measurement description g cm3 gram per cubic centimeter kg cm3 kilogram per cubic centim...

Страница 96: ...m3 hl s hectoliter per second hl or m3 Ml d Megalit d megaliter per day Ml or m3 bbl d barrel per day bbl bbl h barrel per hour bbl bbl m barrel per minute bbl USgpd US gal d gallon per day gal USgph...

Страница 97: ...surement t h metric ton per hour t t d metric ton per day t kg h kilogram per hour kg kg min kilogram per minute kg kg s kilogram per second kg g s gram per second g lb d pound per day lb lb h pound p...

Страница 98: ...0 0 D N 5 0 0 D N 6 0 0 D N 8 0 0 D N 1 0 0 0 1 m 3 h 1 0 1 0 0 1 0 3 1 0 4 l m i n 1 0 0 1 0 1 0 3 1 0 4 1 0 5 0 1 1 l s 1 0 1 0 0 1 0 3 1 1 0 g a l m i n 1 0 0 1 0 3 1 0 4 1 0 5 1 0 0 b b l d 1 0 3...

Страница 99: ...0 D N 4 0 0 D N 6 0 0 1 0 0 b b l d 1 0 3 1 0 4 1 0 5 1 0 6 1 1 0 g a l m i n 1 0 0 1 0 3 1 0 4 1 0 l m i n 1 0 0 1 0 3 1 0 4 1 0 5 1 1 0 m 3 h 1 0 0 1 0 3 1 0 4 0 1 1 l s 1 0 1 0 0 1 0 3 S t r m u n...

Страница 100: ...cflow Carbon Steel carbon steel 3 230 5 930 trans Stainless Steel stainless steel 3 100 5 790 trans DUPLEX duplex stainless steel 3 272 5 720 trans Ductile Iron ductile cast iron 2 650 trans Asbestos...

Страница 101: ...ferrous metal glass plastics and light metal 0 0 0015 drawn steel pipes 0 01 0 05 fine planed polished surface max 0 01 planed surface 0 01 0 04 rough planed surface 0 05 0 1 welded steel pipes new 0...

Страница 102: ...2 4 179 50 1 013 1542 6 988 0 4 181 60 1 013 1551 0 983 2 4 185 70 1 013 1554 7 977 8 4 190 80 1 013 1554 4 971 8 4 197 90 1 013 1550 5 965 3 4 205 100 1 013 1543 2 958 3 4 216 120 1 985 1519 9 943 1...

Страница 103: ...D Declarations of Conformity FLUXUS WD100 WD200 UMFLUXUS_F5WDV1 1EN 2016 04 08 103 D Declarations of Conformity...

Страница 104: ...FLUXUS WD100 WD200 D Declarations of Conformity 104 UMFLUXUS_F5WDV1 1EN 2016 04 08...

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