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Instruction Manual

NivuFlow Mobile 750

page 70

NFM 750 - rev. 03 / 27.05.2020

Fig. 36-2

Selectable channel profiles



Select from the available channel profiles:

•

Pipe

•

Ellipse

•

Egg profile (1:1.5)

•

Rectangle

•

Pipe Profiler

•

U-Profile

•

Trapezoid

•

Channel

•

Height-Width (sym.)

•

Height-Width (asym.)

•

Height-Area

•

Q=f(h)



After choosing the profile, enter the dimension values digit by digit.
Observe the measuring unit (decimal place).

Default setting

: channel profile dimensions in METER.

Содержание NivuFlow 750

Страница 1: ...b l e Instruction Manual Flow Measurement Transmitter NivuFlow Mobile 750 NivuFlow Mobile 750 Ex Firmware Revision 3 00 Revised manual Document revision 03 27 05 2020 Original Manual German rev 03 as...

Страница 2: ...offsheim France Phone 33 0 3 88 9992 84 info nivus fr www nivus fr NIVUS Ltd United Kingdom Wedgewood Rugby Road Weston under Wetherley Royal Leamington Spa CV33 9BW Warwickshire Phone 44 0 8445 3328...

Страница 3: ...European Economic Area EEA this instruction manu al must be translated into the language of the country in which the device is to be used Should the translated text be unclear the original instructio...

Страница 4: ...ges MoG 27 05 2020 02 NIVUS France address modified chap 1 3 1 Colour code for wires and single conductors 5 Liability disclaimer 22 1 3 Operation Charging via an Alternative Power Supply 24 2 Sensor...

Страница 5: ...3 Interfaces 13 Safety Instructions 14 3 Used symbols and signal words 14 3 1 Valuation of the accident level 14 3 2 Warning notices on the product option 15 4 Safeguards and Precautions 15 5 Warranty...

Страница 6: ...pack 35 23 1 3 Operation Charging via an Alternative Power Supply 37 23 1 4 Operation Charging with direct connection to mains power 38 24 Sensor Installation in General 38 24 1 Sensor Installation Ba...

Страница 7: ...1 Menu Measure Place 69 36 1 1 Name of Measurement Place 69 36 1 2 Channel Profiles 69 36 1 3 Sludge Level 75 36 1 4 3D View 75 36 1 5 Low Flow Suppression 75 36 1 6 Damping 76 36 1 7 Stability 77 36...

Страница 8: ...ick Start 116 42 1 Menu Quick Start Region Settings 116 42 2 Menu Quick Start Measure Place 117 42 3 Menu Quick Start h Sensors 117 42 4 Menu Quick Start v Sensor 1 118 43 Parameter Menu Alert 118 43...

Страница 9: ...Information 135 52 Cleaning 135 52 1 Transmitter 135 52 2 Power Adapter Battery Charger 135 52 3 Sensors 135 53 Dismantling Disposal 136 54 Installation of spare parts and parts subject to wear and t...

Страница 10: ...diaries of NIVUS group cannot be held responsible for dam age to persons or material due to incorrectly understood information in this instruction 1 1 Applicable documentation For the installation and...

Страница 11: ...yellow GD gold SR silver 2 Connections and Operating Elements 2 1 Power Supply 2 1 1 Transmitter The NivuFlow Mobile Fig 2 1 no 1 is supplied by rechargeable battery packs Once plugged in the batterie...

Страница 12: ...V AC using the multifunction socket Fig 2 2 no 1 on the re verse side of the enclosure External power source 12 14 V DC e g battery solar module fuel cell etc using ca ble via multifunction socket 1 M...

Страница 13: ...th various interfaces which can be found on the reverse side or on the top of the instrument 1 Sensor socket v2 h 2 Multifunction socket I O 3 Sensor socket v1 4 USB A interface accessible with open c...

Страница 14: ...f risk Indicates a possible danger with medium risk which may result in a life threatening situa tion or severe bodily injury if it is not avoided CAUTION Warnings in low risk or property damages Indi...

Страница 15: ...Safeguards and Precautions Working with NIVUS instruments requires to observe and to follow the safety measures and precautions below generally and at any time These notes and warnings will not be rep...

Страница 16: ...arding may lead to electric shocks Putting into operation by trained experts only The entire measurement system shall be installed and put into operation by trained expert personnel only Integrated bu...

Страница 17: ...e requirements for damages to persons or objects resulting from failure to comply with safety infor mation contained within this instruction manual for missing or incorrect measurement values or resul...

Страница 18: ...nly rechargeable batteries approved by NIVUS shall be used within Ex areas Use the USB interface only outside of Ex areas Replace the SIM card only outside of Ex areas The instrument shall be after su...

Страница 19: ...the local regulations such as regulations for electrical connection are observed Keep the manual Keep this manual in a safe place and make sure it is available for the users of this product at any tim...

Страница 20: ...Flow Check extra accessories depending on your order and by using the delivery note 12 Reception inspection Check the packaging for visible damage immediately after receipt Any possible damage in tran...

Страница 21: ...g plates are essential since they provide the threads to fasten the hoop guards and additionally stabilise the guards on the NFM because the buffers are designed as impact protection for NFM connectio...

Страница 22: ...antenna socket 7 Sensor socket v1 8 Fastening holes for rubber buffers or hoop guards 9 Handle 10 Left battery pack receptacle 11 Right battery pack receptacle position to charge the battery 12 Cover...

Страница 23: ...iew on the connectable sensors 1 CSM Flow velocity measurement wedge sensor 2 CSM Flow velocity measurement pipe sensor 3 DSM L0 Level measurement wedge sensor 4 CSP flow velocity level measurement co...

Страница 24: ...resent the year and the week number of manufacture 1911 Ex protection label Environmental conditions in operation In case of enquiries and ordering replacement parts it is important to specify article...

Страница 25: ...008X Operating temperature 15 C 50 C Storage temperature 15 C 70 C Max humidity 90 non condensing Display Status LED RGB Operation Solenoid switch via WLAN with display and operating module smartphone...

Страница 26: ...ortable flow measurement transmitter for open channels and part filled and full pipes with data transmission 0E0 With modem board Europe EC21 E 1 0G0 With modem board Global EG25 G 2 0EG With modem bo...

Страница 27: ...ty measurement 21 1 1 Cross correlation The piezo crystal has a slope to the flow direction and operates as a flow velocity sensor Here an ultrasonic burst with a defined angle is sent into the medium...

Страница 28: ...g 21 3 Echo signal images and evaluation Based on the beam angle the interval between both transmitted signals and the shift of the signal pattern therefore in each single measurement window the flow...

Страница 29: ...vel measurement 21 2 1 2 wire level sensor It is possible to directly connect 2 wire sensors supplied by the NivuFlow Mobile 750 e g NivuBar Plus or i Series sensor Measurement ranges of the i Series...

Страница 30: ...ntly The investigated temperature is used to correct the sound running time for calculation purposes The fixed level value is added to the determined value h1 The result is the total flow level h 21 2...

Страница 31: ...essure of the static water column above the sensor is direct proportional to the filling level Fluctuations in atmospheric pressure are compensated by a small air tube which is integrat ed into the se...

Страница 32: ...he permitted ambient temperature Do not expose the transmitter to heavy vibration or mechanical shocks Selecting the installation place strictly avoid Corrosive chemicals or gases Radioactive radiatio...

Страница 33: ...geable batteries from the instrument and if connected to mains power via the multifunction socket disconnect from mains Working on the electric connections may induce the risk of electric shocks Obser...

Страница 34: ...he battery compartment is locked with a cover and six non detachable hexagon socket screws Installation of spare parts parts subject to wear and tear The use of spare parts parts subject to wear and t...

Страница 35: ...ble from NIVUS GmbH at extra costs only Observe the specifi cations attached on the power adapter battery charger Using inappropriate battery chargers may destroy the battery e g due to leaking of bat...

Страница 36: ...ins power and then remove the rechargeable battery pack 1 Rechargeable battery pack plugged upside down 2 Charging tray 3 Charging socket for connection of power adapter charger 4 Charging contacts Fi...

Страница 37: ...l mains power adapter WARNING Danger of explosion when operated using direct external power supply in Ex area Operate the device using direct external power supply out of Ex areas only Never do so wit...

Страница 38: ...nction socket of the NivuFlow Mobile Leave the battery in the instrument to charge it during mains power operation In case of power failure the battery is used as buffer Charge Discharge battery socke...

Страница 39: ...table flow velocity sensors can be found in chapter 16 2 Connectable Sen sors Devices 25 2 1 Connecting Sensors directly to NivuFlow Mobile The sensors can be connected on the reverse side of the Nivu...

Страница 40: ...g two flow velocity sensors via the Adapter Box 25 3 Overvoltage Protection Measures To protect NivuFlow Mobile effectively if operated from external power supply it is necessary to protect the unit b...

Страница 41: ...f you wish to additionally connect more than one sensor or actuator using the inputs outputs besides the flow velocity level sensors on the NivuFlow Mobile 750 Fig 27 1 no 1 For only one single extern...

Страница 42: ...n socket on the NivuFlow Mobile For article numbers see chapter 55 Accessories Fig 27 2 Connector Box terminal wiring Connection B on the Connectorbox is for external supply of the des NFM transmitter...

Страница 43: ...nently more than 6 minutes present in a distance of less than 25 cm from the antenna As soon as the instrument operates correctly even shorter distances do normal ly not mean a danger to public health...

Страница 44: ...r operation before you begin to set the parameters After transmitter and sensors are connected according to chapters 24 Sensor Installation in General and 25 Installation of Sensors the measurement pl...

Страница 45: ...vuFlow Mobile 1 Ensure power supply a minimum of one completely charged rechargeable bat tery pack either plugged into the instrument or alternatively connected via the multifunction socket see chapte...

Страница 46: ...ng SSID default state serial no Fig 31 4 WLAN List 5 Enter the password for server access default state PUK Fig 31 5 no 1 and connect Fig 31 5 no 2 Fig 31 5 Enter password example here fd671a105c5d an...

Страница 47: ...6 no 1 and select Add to Home screen Fig 31 7 no 1 Fig 31 7 Add to Home screen 9 Use Add to confirm Fig 31 8 no 1 Fig 31 8 Confirm adding The link Fig 31 9 no 1 is indicated on the tart screen and can...

Страница 48: ...Alternative Power Supply The following step Wake Up can be skipped as soon as the battery pack is in serted now or when voltage is fed and the connection is set up within the follow ing five minutes...

Страница 49: ...1 with the ac cording SSID default state serial no Fig 31 13 WLAN List 5 Enter the password for server access default state PUK Fig 31 14 no 2 and join Fig 31 14 no 1 Fig 31 14 Enter password and joi...

Страница 50: ...27 05 2020 Fig 31 15 NFM display in browser 8 Use the symbol Provide Fig 31 16 no 1 to set up a link on your home screen for direct access Fig 31 16 Set up link 9 Select To Home Screen Fig 31 17 no 1...

Страница 51: ...ring the NivuFlow Mobile 1 Ensure power supply a minimum of one completely charged rechargeable bat tery pack either plugged into the instrument or alternatively connected via the multifunction socket...

Страница 52: ...nd operation module 2 Go to the list of available WLAN networks Fig 31 21 no 2 3 From the list select the NFM Fig 31 21 no 1 with the according SSID default stat serial no Fig 31 21 List of WLAN netwo...

Страница 53: ...create a browser favourite for direct access click the Favourites star Fig 31 25 no 1 example here Google Chrome and confirm with Finished Fig 31 25 no 2 Fig 31 25 Set up favourites The bookmark is s...

Страница 54: ...or flow metering 3 Display area 2 output field 2 5 for level average velocity medium temperature and totaliser 4 Display area 3 trend graph on level velocity medium temperature and rate 5 Name of meas...

Страница 55: ...eters After modifying parameters and navigating back using the menu field save the modified pa rameters to make the changes effective Once saved the status message Successful Fig 32 2 is shown Fig 32...

Страница 56: ...a Saving and loading of parameters System Basic information serial no version article no etc on the trans mitter required by the NIVUS GmbH in case of requests Language and date format settings under...

Страница 57: ...e 99 33 1 Save Parameters Once all necessary measurement place parameters are specified the data must be saved in order to become effective Procedure 1 Go Back three times a window opens asking Save P...

Страница 58: ...de of enclosure Procedure 1 Open cover 2 Loosen hexagon socket screws of battery compartment cover and remove the cover 3 Remove the rechargeable batteries 4 Hold the magnet to the reed contact and pl...

Страница 59: ...e with the magnet solenoid The transmitter automatically transmits the entire content of the measurement data memory to the plugged USB stick as soon as no WLAN connection is available within 10 minut...

Страница 60: ...ata and indicates Successful once the procedure is completed No erases nothing and opens the Region Settings page Fig 34 2 Confirmation prompt Erasing Parameters and Data 4 On page Region Settings set...

Страница 61: ...ything and takes you to the next page h Sensors Abort remains the current page Measure Place open enabling to continue the setting of parameters here 8 On page h Sensors select the level sensors and s...

Страница 62: ...hing and takes you to the main menu Abort remains the current page v Sensors open enabling to continue the setting of parameters here 11 Use Back once more to go to the main screen 35 Parameter Functi...

Страница 63: ...d to define the flow velocity level sensors as well as to set mount ing position data Moreover the required analog and digital inputs and outputs can be defined here Functions Measurement ranges Measu...

Страница 64: ...entation of measurement values List of the 100 latest 24h day totals Communication and transmitting option of internal data Transfer of adjusted parameters to and from USB stick Options to set and to...

Страница 65: ...e error messages Erase error memory Configure storage cycle Parameter system reset Instrument shutdown Powerdown 35 2 4 Menu Communication Fig 35 5 Menu Communication This menu includes settings requi...

Страница 66: ...7 Menu Battery 12V This menu is used to choose type and number of the batteries used Correct Capacity Indication The capacity indication in the System Information menu works reliably only as long as...

Страница 67: ...setting of parameters for elementary measurement places with the aid of default settings for various parameters Depending on the number of the connected v Sensors the Quick Start menu includes four t...

Страница 68: ...epending on the parameter settings of the transmitter Flow Level Velocity Water temperature Battery 12V Ana log input 1 Analog input 2 Analog input 3 and Digital input Here you can set the high or low...

Страница 69: ...ically as soon as the first character of the new meas urement place name is entered Type the desired name of the measurement place into the text field and confirm with Enter The name will be accepted...

Страница 70: ...available channel profiles Pipe Ellipse Egg profile 1 1 5 Rectangle Pipe Profiler U Profile Trapezoid Channel Height Width sym Height Width asym Height Area Q f h After choosing the profile enter the...

Страница 71: ...ture different radii in bottom and crown which makes them symmetrical only in a vertical sense Enter both dimensions of the ellipsoid profile Egg profile Ovoid 1 1 5 This channel shape is a standard e...

Страница 72: ...e can be added as extra option Trapezoid with dry weather flume Proceed as described in the rectangle with dry weather flume section on page 71 Channel Sound Expert Knowledge required Setting the para...

Страница 73: ...d to be necessarily entered in order to define the profile since the transmitter linearises between individual breakpoints In case of large irregular changes of the channel dimensions select a lower d...

Страница 74: ...cessarily observe here the relevant note above on the viewing direction with free profiles on page 73 5 Start at level 0 to define the starting point of the channel 6 Enter all other breakpoints freel...

Страница 75: ...ate depend ing on the currently measured level is indicated This value is entered into a value table de pending on the height This table can hold a maximum of 32 height related breakpoints The transmi...

Страница 76: ...h cannot be suppressed using the Q suppressed function The measurement system will automatically reset the readings to 0 should the flow veloci ties be lower than the value specified here This will se...

Страница 77: ...t in the h sensors submenu 36 2 1 h Sensor types Fig 36 7 Selection level sensor settings You can find a choice of level sensors behind the button h Sensor types Open parameter h Sensor types and sele...

Страница 78: ...ution loads Level measurement possible even in case of impoundage 2 wire level The level is measured by using an external 2 wire sensor supplied by the transmitter Example pressure probe Type NivuBar...

Страница 79: ...or for initial start ups if level values are not available 36 2 2 Define Measuring Ranges Depending on type and number of the selected sensors a coloured bar is shown on the right hand side of the cha...

Страница 80: ...amming sec tions The assignment depends on the channel shape set NIVUS air ultrasonic Range bottom Integrated pressure Range top etc This assignment can be configured individually During this procedur...

Страница 81: ...epted automatically for the position of the v sensor as well as for the determination of v crit see chapter 36 3 5 v Determination low levels It is possible to additionally enter an offset to adjust t...

Страница 82: ...Fig 36 13 v Sensor selection 36 3 3 Sensor mounting position Extra application parameters can be set for the installation of v sensors These parameters are intended mainly for installation positions w...

Страница 83: ...programming by entering the angle only requires an angle of in cident directed to the centre of the circular profile or segment as well as the installation situa tions mentioned above However this me...

Страница 84: ...d channel profiles such as channels featuring a dry weather flume and a berm the lowest point within the channel is equal to the zero point The lowest point in this case is the bottom of the dry weath...

Страница 85: ...itive value virtually moves the sensor to the right The value relates to the centre of the application Fig 36 18 Entering sensor position in relation to the application centre Input box Mounting angle...

Страница 86: ...ations Entering negative results in invalid flow velocity readings Fig 36 19 Modifying the sensor mounting direction 36 3 4 Weighting In the event of using several flow velocity sensors the relevance...

Страница 87: ...imal height is Type CSM 3 cm Type CSM D 5 5 cm Type CSP 8 cm Poor application conditions or an elevated sensor installation may push this level even high er This level is referred to as h crit Fig 36...

Страница 88: ...d backwater within your channel Deactivation makes sense too as soon as in the event of flow rate zero a small amount of the medium is supposed to stand still Set the value in v manual to ZERO The sys...

Страница 89: ...ow In this case simply set the maximum value for negative flow velocities to 0 Specifications show upper limits It is not possible to increase the possible flow velocity evaluation to values higher th...

Страница 90: ...r can be used as an extra data logger for measurement values from external systems or for supply of analog sensors This however does not influence the instrument s capabilities as flow meter Analog in...

Страница 91: ...nalog output Selection Input Options Output range 0 5 V or 0 10 V Value at 0 V manual input Value at 10 V manual input Value at error 0 V or Hold value or 10 V Level The level of the current level are...

Страница 92: ...or Input 3 Output range 0 5 V or 0 10 V Value at 10 V manual input Value at error 0 V or Hold value or 10 V Sensor Velocity In the event of using multiple flow velocity sensors and if the average flo...

Страница 93: ...om 1 to 0 Logging Logging of readings and the according status changes for diagnostic purposes Evalua tion is carried out by detecting the status changes of the digital input 1 0 or 0 1 Selection Inpu...

Страница 94: ...ion to avoid output flutter The calculated average flow velocity calculated even from multiple paths is used Selection Input Options Logic Normally open or Normally closed Threshold on manual input Th...

Страница 95: ...itched between nor mally open and normally closed Selection Input Options Logic Normally open or Normally closed v Measurement Check box h Measurement Check box T Measurement Check box External value...

Страница 96: ...th grid lines 5 Date Time line selected point in time 6 Automatic zero point scaling 7 Browse next back Fig 37 2 Trend Graph Details Current Measurement Data Procedure to view current measurement data...

Страница 97: ...en once a start date is selected Fig 37 3 Selecting Time Date Range Indication Period The range selection determines the period to indicate on the screen Selection Representation on the display Left M...

Страница 98: ...rument was actually in operation As soon as the NivuFlow Mobile is shut down between two totalising events 24 hours the transmitter creates a total using measured values Such totals are not equal to t...

Страница 99: ...totalising time is at 00 00 o clock The totalising time can be modified using Update Time Fig 37 6 Once modified the to talising will start at the time set and stops 24 hours later Fig 37 6 Updating t...

Страница 100: ...e period between the latest previous transmission and the current time File Format csv or txt Data Depth Data depth is subdivided into four sections Standard This is the appropriate format for the mos...

Страница 101: ...This function permits to save measurement data covering a previously determined peri od to USB stick Download Use this function to save measurement data covering a previously determined period to the...

Страница 102: ...of the latest software update firmware and the last storage of the parameter sets Current battery charging status when using two batteries the battery with the higher capacity is used until the capac...

Страница 103: ...vely in English 38 2 2 Date Format The date formats below can be set DD MM YYYY Day Month Year MM DD YYYY Month Day Year 38 2 3 Units This menu can be used to adjust various country specific and unit...

Страница 104: ...the Units settings In Units Memory the measurement values are converted and saved according to the se lected units Decimal Separators Comma Point Specifying the decimal separators is relevant for corr...

Страница 105: ...ration module Modifications in the Time Date menu may be necessary to switch from summer time to winter time due to internal buffer battery failure or after power failure The internal clock may deviat...

Страница 106: ...ll be instantly erased by choosing Erase Error Memory no security prompt will come up Fig 38 5 Error Messages 38 5 Service This submenu contains the following functions Service levels password protect...

Страница 107: ...own and restarting the system All saved parame ters counters and data will be preserved 38 5 3 Powerdown The Powerdown function switches the transmitter to energy saving mode The instrument will not r...

Страница 108: ...owever measures continuously during the event The instrument saves the data at the adjusted event intervals Continuous Operation The transmitter measures continuously however will save the data only a...

Страница 109: ...see chapter 33 2 Change WLAN Password Prepare the device for data transmission Use the button Start data transmission to cause the NivuFlow Mobile to transmit data to the NIVUS Web Portal where the da...

Страница 110: ...p successfully and GPS coordinates are transmitted Then the NivuFlow Mobile can be positioned in its planned installation place Fig 39 2 GPRS menu Modem error message Diag Output Set up and adjust the...

Страница 111: ...ive enter the new PIN and then se lect Change Pin If the PIN is entered incorrectly three times the value must be entered using the PUK found in the unit lid and a new PIN needs to be specified Provid...

Страница 112: ...ycle time Set the transmission cycle in hours 1 2 3 4 6 8 12 or 24h Test settings Use this menu to verify the settings the results can be viewed in Diag Output Start Data Transmission Data error infor...

Страница 113: ...mail provider Check the according box for transmission to an e mail address Email address From E mail sender address must be accepted by SMTP server To E mail destination address SMTP Server Specify e...

Страница 114: ...fields Flow Level Velocity Temperature and Total can be specified freely in terms of name and the number of decimal places Assignment of values and output fields The assignment of values and fields ca...

Страница 115: ...ng num ber of batteries Correct Indication of Battery Capacity The capacity indication in the System Information menu is reliable only as long as fully charged batteries are used and the battery type...

Страница 116: ...s h Sensors v Sensor 1 v Sensor 2 and v Sensor 3 sensors can be selected and the respective parameters can be set The parameter setting procedure is described in chapter 34 Parameter Setting using Qui...

Страница 117: ...ed in greater detail in chapter 36 1 Menu Measure Place 42 3 Menu Quick Start h Sensors Fig 42 3 h Sensors Selecting the page h Sensors causes the software to check the connected sensors and to set th...

Страница 118: ...ed in greater detail in chapter 36 3 Setting Parameters in Menu v Sensors 43 Parameter Menu Alert The alert menu includes up to nine subsections Flow Level Velocity Water Tem perature Battery 12V Anal...

Страница 119: ...alues can be specified by clicking and typ ing The measurement transmitter evaluates both values and sends an e mail on reaching the highest top limit highest possible value and the lowest bottom valu...

Страница 120: ...e independent from the input sequence In Hysteresis abs and Hysteresis rel values can be specified by clicking and typ ing The measurement transmitter evaluates both values and sends an e mail on reac...

Страница 121: ...f defective flow velocity sensor If you wish to receive an alert in case of a defective flow velocity sensor via email check Alert on error under 43 1 Menu Alert Water temperature This setting is not...

Страница 122: ...5 Battery 12V The Battery 12V subsection permits to specify up to five different limit values by using the and keys in Lower threshold Entries each of which is used to trigger an alarm e mail Define...

Страница 123: ...pendent from the input sequence In Hysteresis abs and Hysteresis rel values can be specified by clicking and typ ing The measurement transmitter evaluates both values and sends an e mail on reaching t...

Страница 124: ...ctive ongoing alert to send an alarm e mail Possible errors are cable breaks interruptions short circuits etc 43 1 Menu Alert Analog Input 3 Fig 43 8 Analog Input 3 The Analog Input 3 subsection permi...

Страница 125: ...50 rev 03 27 05 2020 page 125 43 1 Menu Alert Digital Input Fig 43 9 Digital Input Click the Digital Input checkbox in order to activate alarm e mails in case of digital Highs on the digital input Def...

Страница 126: ...the Application menu and is split into six sub menus This menu and all its submenus are read only and simulation menus This section permits to view or to simulate settings on the areas below h Sensors...

Страница 127: ...confirmed with OK The adjustment height is equal to the offset and is normally specified when the h sensor parameters are set Depending on which sensors are selected the value the calibrated value or...

Страница 128: ...lated from the various discrete gates Gates Indicates the average flow velocity of individual gates for velocity calculation VGATES Indicates the virtual and average individual flow velocities and the...

Страница 129: ...The simulation of NivuFlow Mobile outputs will directly affect any following plant sections without any safety locking measures Observe the hints contained within the above warning Important Note NIVU...

Страница 130: ...This menu cannot be used to obtain information on external faulty wiring A Simulation of the digital output can be executed by either selecting No Simulation On or Off Fig 47 1 Necessarily observe th...

Страница 131: ...menu is used to scan and to review the incoming signal from the sensor Moreover the sensor function can be tested here Fig 49 1 Signal analysis menu Inspect Select from the options below Inactive No s...

Страница 132: ...resentation signal shape Index Subsections 1 8 FFT for frequency spectrum display Noise Indication of unwanted background noise with signal evaluation FFT for frequency spectrum display Fig 49 3 Signa...

Страница 133: ...enter smaller steps or specify absolute values higher steps directly in the Velocity field Decreases the level by 0 01 m or the velocity by 0 01 m s per step Decreases the level by 0 001 m or the velo...

Страница 134: ...ently used in wastewater applications some portions of the measure ment system may be loaded with hazardous germs This is why precautionary measures shall be taken while being in contact with cables a...

Страница 135: ...le static charge In such a case the unit poses a threat to the user s life and may cause an ignition in an explosive atmosphere When closed and locked the NivuFlow Mobile enclosure complies with IP68...

Страница 136: ...se that replacement parts or accessories not supplied by NIVUS moreover are not certified and approved by NIVUS too Installation and or the use of such products hence may negatively influence predeter...

Страница 137: ...ble length 20 m ZUB0 KAB NMC 30 2 pole preconfigured cable with open cable ends for connection to Connector Box cable length 30 m NFM0 ZAB2 VKK Adapter box for velocity measurement using 3 flow veloci...

Страница 138: ...ostics 130 G Germs 16 GPRS 110 Antenna 43 DNS 111 E Mail 113 FTP 112 Modem state 110 MQTT 112 SIM Card 111 H h suppressed 76 h crit 88 h crit automatic 88 h manual 88 Hoop guards 21 I Indication of Ca...

Страница 139: ...nformation 129 Sludge level 75 Spare parts 136 Stability 77 Stickers 21 32 Storage 21 Storage temperature 25 System time 105 T Translation 3 Transport 21 T Shape antenna 43 Tx signal Simulation 132 U...

Страница 140: ...the following Open Source Projects Freetype http www freetype org Libharu http libharu org Libjpeg http www ijg org Libpng http www libpng org Zlib http www zlib net Mini XML http www msweet org Nano...

Страница 141: ...Approvals and Certificates NFM 750 rev 03 27 05 2020 page 141 Approvals and Certificates...

Страница 142: ...Instruction Manual NivuFlow Mobile 750 page 142 NFM 750 rev 03 27 05 2020...

Страница 143: ...Approvals and Certificates NFM 750 rev 03 27 05 2020 page 143...

Страница 144: ...Instruction Manual NivuFlow Mobile 750 page 144 NFM 750 rev 03 27 05 2020...

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