Page 1 F L O W p o r t a 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 of 25.05.2020...
Page 2 INCHEON, Korea 406-840 www.nivus.de Phone +82 32 209 8588 Fax +82 32 209 8590 korea@nivus.com NIVUS Sp. z o.o., Poland www.nivus.com ul. Hutnicza 3 / B-18 81-212 Gdynia, Poland NIVUS Vietnam Phone +48 (0) 58 7602015 Fax +48 (0) 58 7602014 21 Pho Duc Chinh, Ba Dinh, biuro@nivus.pl...
Page 3: Copyrights And Property Rights
Copyrights and property rights Copyrights and property rights This document and its contents are proprietary to NIVUS GmbH and are not to be repro- duced or copied without the express written permission of NIVUS GmbH. Violations oblige to compensation. Important Note This instruction manual may exclusively - even in parts - be copied or translated in any other way with the express written consent of NIVUS GmbH.
Page 4: Document Modifications
“52.2 Power Adapter / Battery Charger” added; chap. “53 Dismantling/Disposal”: Note to EC WEEE-Directive updated; chap. “Approvals and Certificates” updated; minor text and layout changes NIVUS France address modified; chap. “1.3.1 Colour code for wires and 17.04.2019 single conductors”, “5 Liability disclaimer”, “22.1.3 Operation/Charging via an Alternative Power Supply”, “24.2 Sensor Connection”...
Page 5: Table Of Contents
Table of contents Table of contents Copyrights and property rights Document modifications Table of contents General About this manual..................10 Applicable documentation ..............10 Signs and definitions used ..............10 Abbreviations used ................11 1.3.1 Colour code for wires and single conductors ........11 Connections and Operating Elements ............
Page 6 Instruction Manual NivuFlow Mobile 750 Functional description 20 Operating Ranges ................... 27 21 Functional Principles ................27 21.1 Flow velocity measurement ..............27 21.1.1 Cross correlation ................27 21.2 Level measurement ................29 21.2.1 2-wire level sensor ................29 21.2.2 Water ultrasound ................30 21.2.3 Air-ultrasound ...................
Page 7 Table of contents Parameter Setting 33 General Programming ................57 33.1 Save Parameters ................57 33.2 Change WLAN Password ..............57 33.3 Change Instrument SSID ..............58 33.4 Lost Password ..................58 33.5 Automatic Data Transmission to USB Stick ........59 34 Parameter Setting using Quick Start ............
Page 8 Instruction Manual NivuFlow Mobile 750 38 System Parameter Menu ..............102 38.1 Information ..................102 38.2 Region Settings ................. 102 38.2.1 (Operation) Language ..............103 38.2.2 Date Format ..................103 38.2.3 Units ....................103 38.2.4 Units Memory ................. 104 38.3 Time/Date ..................105 38.4 Error Messages .................
Page 9 Table of contents Maintenance and Cleaning 51 Maintenance ..................134 51.1 Maintenance Interval ................. 134 51.2 Customer Service Information ............135 52 Cleaning ....................135 52.1 Transmitter ..................135 52.2 Power Adapter / Battery Charger ............135 52.3 Sensors ..................... 135 53 Dismantling/Disposal ................
Page 10: General
If you should have problems to understand information contained within this instruction man- ual either contact the NIVUS GmbH or one of the distributors for further support. The legally associated companies and subsidiaries of NIVUS group cannot be held responsible for dam- age to persons or material due to incorrectly understood information in this instruction.
Page 11: Abbreviations Used
General Abbreviations used 1.3.1 Colour code for wires and single conductors The abbreviations of colours, wire and components follow the international colour code ac- cording IEC 60757. black brown orange yellow green blue violet grey white pink turquoise GNYE green/yellow gold silver Connections and Operating Elements...
Page 12: Rechargeable Batteries
Instruction Manual NivuFlow Mobile 750 2.1.2 Rechargeable Batteries The rechargeable batteries can be charged either in installed condition or while removed by using a battery charger (optional accessory). WARNING Risk of explosion when charging battery packs in Ex areas Charge rechargeable battery packs outside of Ex areas only.
Page 13: Interfaces
General Interfaces The transmitter is equipped with various interfaces which can be found on the reverse side or on the top of the instrument. Sensor socket v2/h Multifunction socket I/O Sensor socket v1 USB-A interface (accessible with open cover) GPRS SIM card slot (in connection with GPRS antenna) Fig.
Page 14: Safety Instructions
Instruction Manual NivuFlow Mobile 750 Safety Instructions Used symbols and signal words Valuation of the accident level The general warning symbol indicates the risk of personal injuries or death. In the text sec- tion the general warning symbol is used in conjunction with the signal words described below.
Page 15: Warning Notices On The Product (Option)
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 repeated for each description within the document.
Page 16: Warranty
The entire measurement system shall be installed and put into operation by trained expert personnel only. Integrated buffer battery The exchange of the integrated buffer battery shall be carried out by NIVUS staff or per- sonnel authorised by NIVUS only. Otherwise the guarantee expires. Warranty The device has been functionally tested before delivery.
Page 17: Liability Disclaimer
• for damages owing to a change of this document. The legally associated companies and subsidiaries of the NIVUS group reserve the right to change the contents of this document and this disclaimer at any time and without any notice.
Page 18: Ex Protection
Instruction Manual NivuFlow Mobile 750 Ex Protection The portable transmitter NivuFlow Mobile 750 and the accompanying sensors are designed to be used in areas with explosive atmospheres (zone 1). The following conditions must be observed: • Programming the unit under Ex conditions is permissible: ...
Page 19: User's Responsibilities
Safety Instructions User’s Responsibilities Important Note In the EEA (European Economic Area) national implementation of the framework directive 89/391/EEC and corresponding individual directives, in particular the directive 2009/104/EC concerning the minimum safety and health requirements for the use of work equipment by workers at work, as amended, are to be observed and adhered to.
Page 20: Delivery, Storage And Transport
Instruction Manual NivuFlow Mobile 750 Delivery, Storage and Transport 11 Delivery The standard delivery of the NivuFlow Mobile 750 basically contains: • Transmitter type NivuFlow Mobile 750 (according to shipping documents) • Ring magnet (solenoid) • USB stick • Screw driver for hexagon socket screws •...
Page 21: Storage
Take precautionary measures and use lashing straps or similar to protect the NivuFlow from heavy shocks or vibrations. 15 Return In case of a required reshipment return the unit at customer cost to NIVUS GmbH in Ep- pingen using the original packaging. Insufficiently franked shipments will not be accepted! ...
Page 22: Product Specification
14 NivuFlow Mobile 750 transmitter (IP67) 15 Enclosure (IP68 with cover closed) 16 GPRS SIM card slot (in connection with GPRS antenna) Fig. 16-1 Device construction NivuFlow Mobile 750 with enclosure page 22 NFM 750 - rev. 03 / 27.05.2020...
Page 23: Enclosure Dimensions
Product Specification 16.1 Enclosure Dimensions Fig. 16-2 Enclosure 16.2 Connectable Sensors/Devices The photo below provides an overview on the connectable sensors. CSM Flow velocity measurement wedge sensor CSM Flow velocity measurement pipe sensor DSM-L0 Level measurement wedge sensor CSP flow velocity / level measurement combi wedge sensor i-Series level sensor HSB0 NBP Submersible sensor for level measurement NPP Pipe measuring section...
Page 24: Device Identification
In case of enquiries and ordering replacement parts it is important to specify article number as well as the serial number of the respective transmitter or sensor. This ensures correct and quick processing. Fig. 17-1 Nameplate NivuFlow Mobile 750 (Example Ex-Version) Fig. 17-2 Nameplate NivuFlow Mobile 750 Ex-Version (additionally) Check nameplates Check the delivered instrument for accordance with your order by identifying the name- plate.
Page 25: Specifications
Product Specification 18 Specifications Flow velocity measurement using high accurate, spatially Measurement principle allocated ultrasonic cross correlation Level measurement depending on sensor type using transit time measurement via air- or water-ultrasound, pressure probe or mA-input for level measurement (2-wire level sen- sor) 1...2x rechargeable batteries 12 V / 15 Ah, VRLA-AGM Power supply...
Page 26: Configuration/Device Types
Instruction Manual NivuFlow Mobile 750 19 Configuration/Device Types The portable measurement transmitter is available in different versions as shown in the over- view table below. From the article number the type of device can be specified. NFM- Design 07500 Portable flow measurement transmitter for open channels and part filled...
Page 27: Functional Description
Functional description Functional description 20 Operating Ranges The NivuFlow Mobile 750 is a portable measurement system for flow measurement. The in- strument is designed mainly for measurement in slight to heavily polluted aqueous liquids of various compositions. The system can be used in part filled and full flumes, channels and pipes featuring various shapes and dimensions.
Page 28 Instruction Manual NivuFlow Mobile 750 Fig. 21-2 Situation at second signal detection The DSP checks both received reflection patterns for similarities using the cross correlation method. All existing signal differences (caused by new or rotated particles) are rejected so that two similar but temporarily offset signal patterns are left for velocity evaluation.
Page 29: Level Measurement
21.2 Level 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 sensors i-Series sensors have pre-programmed measurement ranges. For further reference see the i-Series sensors instruction manual.
Page 30: Water Ultrasound
Instruction Manual NivuFlow Mobile 750 21.2.2 Water ultrasound The Type CSP-V2H1 and CSP-V2U1 sensors are equipped with a horizontal crystal element used for level measurement based on the transit time method using water-ultrasound. The measurement uses the time between transmission and reception of an impulse being re- ×...
Page 31: Pressure
Functional description 21.2.4 Pressure The CSM-V1D0 sensor generally operates with a hydrostatic level measurement and the CSP-V2D0/V2U1 sensors can be optionally equipped with an additional hydrostatic level measurement. The piezoresistive pressure sensor operates based on the relative pressure principle. The pressure of the static water column above the sensor is direct proportional to the filling level.
Page 32: Installation And Connection
22.2.1 PU stickers on enclosure frame  Prior to first use of the NivuFlow Mobile 750 make sure that the PU stickers have been removed. If not, remove the stickers and clean the enclosure frame if necessary.  See chapter “12 Reception inspection”.
Page 33: Securing The Instrument
Installation and Connection Gaskets The NIVUS GmbH cannot be held responsible for any instrument damage resulting from the use of defective or leaking gaskets. 22.2.3 Securing the Instrument  Secure the transmitter from being washed away. When installed in shafts or canals tending to overflow the transmitter shall be secured against being washed away unintentionally (use suspension bracket, plastic/stainless steel rope, chain or similar).
Page 34: Rechargeable Battery Pack
NivuFlow Mobile usually operates with a rechargeable battery pack by default. This ready-to- use battery pack allows for long measuring periods.  Ready-to-use battery packs are obtainable on order at NIVUS (see chap. “55 Accessories”). The battery pack is stored in the according battery compartment. An additional battery pack can be plugged right next to it.
Page 35: Charging The Rechargeable Battery Pack
Power adapter/battery charger To charge the rechargeable battery pack use the power adapter/battery charger (Fig. 23-1 no. 1; NFM0 ZLAD) (available 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 battery cells, explosion or similar).
Page 36 Instruction Manual NivuFlow Mobile 750 2. Take suitable measures to ensure that unauthorised persons may not access the devices during the charging process. 3. Plug the battery pack (Fig. 23-2 no. 1) into the charging tray (Fig. 23-2 no. 2) with the upside down.
Page 37: Operation/Charging Via An Alternative Power Supply
Operate the device using direct external power supply out of Ex areas only. Never do so within Ex areas. During operation the battery pack is charged in the right-hand slot additionally. NIVUS, how- ever, recommend the use of the battery charger since the battery will be charged to approx.
Page 38: Operation/Charging With Direct Connection To Mains Power
Do not operate the instrument within Ex areas using direct mains power connection but only out of Ex areas. During operation the battery pack is charged in the right-hand slot additionally. NIVUS, how- ever, recommend the use of the battery charger since the battery will be charged only to ap- prox.
Page 39: Installation Of Sensors
Installation and Connection The measurement place parameters need to be set prior to installation. Appropriate prepara- tion measures and the measurement place dimensions can be taken from the respective plant documents.  Information on how to set measurement place parameters can be found in chapter “Parameter Setting”...
Page 40: Connection Of Flow Velocity Sensors Using The Adapter Box
In such a case, two of three v-sensors are connected to the Adapter Box (Fig. 25-4) and the third sensor is connected directly to the NivuFlow Mobile 750 transmitter as shown in Fig. 25-1 through socket v1. An i-Series/NivuBar Plus level sensor is connected to the Multi I/O socket as depicted in Fig.
Page 41: Single External Connection For Inputs/Outputs
A Connector Box (Fig. 27-1 no. 6) must be used if 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). ...
Page 42 Instruction Manual NivuFlow Mobile 750 4. Connect the sensors to the Connector Box. See terminal wiring diagram (Fig. 27-2). 5. Plug (Fig. 27-1 no. 5) the connection cable from the Connector Box into the multifunction socket on the NivuFlow Mobile.
Page 43: 28 (T-Shape) Antenna For Gprs Data Remote Transmission
Installation and Connection 28 (T-Shape) Antenna for GPRS Data Remote Transmission The accompanying T-Shape antenna is required for data remote transmission via GPRS.  Installation and connection procedure: 1. Plug antenna cable into the socket on the unit (Fig. 28-1) and tighten the screw joint manually.
Page 44: Putting Into Operation
Instruction Manual NivuFlow Mobile 750 Putting into Operation 29 Notes to Users Before connecting and operating the NivuFlow Mobile follow the instructions below. This instruction manual contains any information required for the setting of parameters and the operation of the instrument. The manual is intended for technically qualified personnel.
Page 45: Setting Up Connection
Putting into Operation  See also chap. “33 General Programming”. The LED is lit in white while the system is booting e.g. after plugging in the rechargeable bat- tery or after a firmware update.  See also chap. “38.5.5 Update NivuFlow”. 31 Setting Up Connection 31.1 General The NivuFlow Mobile is operated completely by using a standard smartphone/tablet or via...
Page 46 Instruction Manual NivuFlow Mobile 750 3. Select WLAN (Fig. 31-3 no. 1). Fig. 31-3 WLAN symbol 4. From the list of available WLANs select the NFM (Fig. 31-4 no. 1) with the ac- cording SSID (default state = serial no.).
Page 47 Putting into Operation Fig. 31-6 NFM display in browser 8. To set a link on your “Home screen” (for direct access) use the “Tabs and Set- tings” symbol (Fig. 31-6 no. 1) and select “Add to Home screen” (Fig. 31-7 no.
Page 48: Ios Operating System
Instruction Manual NivuFlow Mobile 750 Fig. 31-9 Link in the start screen 31.3 iOS Operating System  Preparing 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 (see chapter “23.1.3 Operation/Charging via an Alternative...
Page 49 Putting into Operation Fig. 31-11 Settings symbol 3. Select WLAN (Fig. 31-12 no. 1). Fig. 31-12 WLAN symbol 4. From the list of available WLANs select the NFM (Fig. 31-13 no. 1) with the ac- cording SSID (default state = serial no.). Fig.
Page 50 Instruction Manual NivuFlow Mobile 750 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).
Page 51: Windows Operating System
Putting into Operation Fig. 31-18 Confirm adding The link (Fig. 31-19 no. 1) is indicated on the start screen and can be used for instant access without the need to specify the IP address. This link can be used for each further NivuFlow Mobile transmitter after it has been selected from the WLAN list.
Page 52 Instruction Manual NivuFlow Mobile 750 Fig. 31-20 Waking up the NivuFlow Mobile  Steps on the display and operation module (smartphone, tablet, notebook, PC etc.): 1. Start the display and operation module. 2. Go to the list of available (WLAN) networks (Fig. 31-21 no. 2).
Page 53 Putting into Operation 6. Type “192.168.1.1” into the IP address field (Fig. 31-23) and open. The NivuFlow Mobile display (Fig. 31-24) is indicated as soon as the connection has been established successfully. Fig. 31-24 NFM display in browser 7. To create a browser favourite (for direct access) click the “Favourites” star (Fig. 31-25 no.
Page 54: Menu Operation/Overview
NivuFlow Mobile 750 32 Menu Operation/Overview 32.1 Display Overview The NIVUS display at any time provides an overview on where you currently are within the menu structure and which entries you are about to modify. Menu / Back (depending on display view) Display area 1 (output field 1 for flow metering) Display area 2 (output field 2...5 for level, average velocity, medium temperature and...
Page 55: Saving Parameters
Putting into Operation 32.2 Saving Parameters 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. 32-2 Saving parameters ...
Page 56: Menus
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 >Country Settings< System time and time zone settings under >Time/Date<...
Page 57: Parameter Setting
Parameter Setting Parameter Setting 33 General Programming As a principle, modified parameters do not become effective before they have been saved. The instrument verifies whether parameters have been changed when you exit menus by us- ing “Back”. Finally, you will be prompted to eventually save modified parameters. •...
Page 58: Change Instrument Ssid
Instruction Manual NivuFlow Mobile 750 Store password in a safe place Never give the password to unauthorised persons. If you need to note down the password always keep it in a safe place. 33.3 Change Instrument SSID The SSID is set to the serial number of the instrument per default. The serial number can be found on the nameplate on the side of the enclosure.
Page 59: Automatic Data Transmission To Usb Stick
Parameter Setting 33.5 Automatic Data Transmission to USB Stick In standard situations data stored in the NivuFlow Mobile are transmitted to the display and operation module via WLAN.  See chapter “37.3 Data Memory”. If, in exceptional cases, this should not be possible e.g. due to the lack of WLAN, display and operation module malfunction or empty batteries, it is possible to read out the data memory automatically by using a plugged USB stick.
Page 60 Instruction Manual NivuFlow Mobile 750 3. Choosing >No< opens the >Region Settings< page of the >Quick Start< menu. Choosing >Yes< will ask >Are you sure? Old parameters and archive data will be lost!<. Selecting >Yes< here will erase the old parameters and archived data and indicates “Successful!”...
Page 61 Parameter Setting Fig. 34-4 >Measure place< menu 7. Use the arrow keys to go to the next page. You will be prompted to save parameters. Choosing >Yes< the saving process will be confirmed with the message “Suc- cessful!”. Selecting “OK” opens the next page >h-Sensors<. >No<...
Page 62: Parameter Functions
35 Parameter Functions 35.1 Main Menu The NivuFlow Mobile 750 parameters can be set using a total of seven menus which are de- scribed in greater detail starting with chapter “36 Application Parameters Menu”. The main menu indicates seven icons containing the functions described in the following chapters: Fig.
Page 63: Functions Of The First Menu Level
Parameter Setting 35.2 Functions of the first Menu Level 35.2.1 Menu - Application Fig. 35-2 Menu Application This is one of the most relevant basic menus when it comes to setting parameters. The Ap- plication Menu contains five sub-menus where shapes and dimensions of measurement places can be set.
Page 64: Menu - Data
Instruction Manual NivuFlow Mobile 750 35.2.2 Menu - Data Fig. 35-3 Menu Data The data menu contains all internal stored measurement values. Following functions are available: • Graphic representation of measurement values • List of the 100 latest 24h day totals •...
Page 65: Menu - Communication
Parameter Setting The following settings can be adjusted additionally: • Language • Units • Date and time correction • Read active error messages • Erase error memory • Configure storage cycle • Parameter/system reset • Instrument shutdown (Powerdown) 35.2.4 Menu - Communication Fig.
Page 66: Menu - Battery (12V)
Instruction Manual NivuFlow Mobile 750 35.2.6 Menu - Battery (12V) Fig. 35-7 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 completely charged batteries are used and the type and number of the batteries used are specified here.
Page 67: Menu - Quick Start
Parameter Setting 35.2.7 Menu – Quick Start Fig. 35-8 Menu Quick Start 1...6 This menu allows easy 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 to six pages: •...
Page 68: Menu - Alert
1<, >Analog input 2<, >Analog input 3< and >Digital input<. Here you can set the high or low limit values/thresholds and error messages the measure- ment transmitter will use to send alerting e-mails to pre-set e-mail addresses via the NIVUS Web Portal.
Page 69: Application Parameters Menu
Parameter Setting 36 Application Parameters Menu Fig. 36-1 Application Menu The following sections describe the general parameter setting procedures. 36.1 Menu Measure Place The >Measure Place< submenu is one of the most relevant basic menus when it comes to setting parameters. The parameter set of a measurement place contains basic settings for: •...
Page 70 Instruction Manual NivuFlow Mobile 750 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.) •...
Page 71 Parameter Setting Fig. 36-3 Example of a channel profile menu Pipe This selection is suitable for round pipes, however can be used for half shells featuring a fill- ing level of 50 % max. as well. Deformed pipes featuring asymmetric height/width ratio can be set using the ellipsoid geome- try selection.
Page 72 5. Use the 3D-view to verify whether dimensions are specified correctly. Pipe Profiler The NIVUS Pipe Profiler NPP always defines this profile as full filled pipe. The transmitter reads the parameters such as inside diameter and correction factors automatically. U-Profile The U-profile is composed from a bottom semicircle and vertical walls.
Page 73 Parameter Setting Fig. 36-4 Setting of profile using height-width (sym.) Drawing required A true to scale drawing is required to set the channel parameters.  Procedure: 1. Draw a vertical auxiliary line onto the drawing in the channel centre. 2. Then draw horizontal auxiliary lines on the distinct points where the profile changes.
Page 74 Instruction Manual NivuFlow Mobile 750 Drawing required A true to scale drawing is required to set the channel parameters.  Procedure: 1. Draw a vertical auxiliary line onto the drawing from the lowest point of the channel to the top.
Page 75: Sludge Level
Parameter Setting Free symmetric height-area profile (Height-Area) Some hydraulic tables may contain height-area value pairs instead of height-width to specify symmetric channels. In such cases enter the value pairs into the selected height-area table. Necessarily observe here the relevant note above on the viewing direction with free pro- files on page 73.
Page 76: Damping
Instruction Manual NivuFlow Mobile 750 Fig. 36-6 Low-flow suppression This parameter is to suppress lowest movement or apparent flow rates. The main area of use is the measurement of overflow volumes in buildings with permanent dam-up. Lower flow velocities than the value specified here will be “suppressed” and hence no flow rate is indicated.
Page 77: Stability
Parameter Setting 36.1.7 Stability The stability parameter defines the period the transmitter bridges values without having valid measurement events (e.g. in case of invalid level or flow velocity readings) available. During this period the NivuFlow Mobile operates using the latest valid reading. If the specified period is exceeded without detecting a correct value the transmitter goes back to reading “0”...
Page 78 Ranger can be enabled in this menu as well. • i-Series sensor Connection of NIVUS i-Series ultrasonic sensors on analog input AI 1. • NIVUS air-ultrasound The level is measured from the top down using an air-ultrasonic sensor Type DSM-L0.
Page 79: Define Measuring Ranges
Parameter Setting the risk of soiling. In this case water-ultrasound from the bottom up however must not be used since this may lead to measurement failure! For such situations a different level sensor (ultrasound from top down or pressure cell) must be used.
Page 80 Instruction Manual NivuFlow Mobile 750 • Number of sensors used  only one: solid green area  two: colour combination green/red Fig. 36-10 Indication of programmable ranges You can assign one level sensor to each programming section (see Fig. 36-8).
Page 81: Setting Parameters In Menu V-Sensors
(see chapter “36.1.2 Channel Profiles”). 36.3.1 Number of Flow velocity sensors You can connect one flow velocity sensor to the NivuFlow Mobile 750 transmitter. The option to connect up to three flow velocity sensors is currently not supported, however, in preparation.
Page 82: Selecting The Sensor Types
Instruction Manual NivuFlow Mobile 750 36.3.2 Selecting the Sensor Types Select between four different sensor types or automatic detection: • CSM Wedge • CSM Wedge + Press • CSP Wedge • CSM Pipe • auto identification Fig. 36-13 v-Sensor selection 36.3.3...
Page 83 Parameter Setting Fig. 36-14 Programming using height, distance and angle For sensor installation flush with wall you can alternatively enter the angle of incidence on- ly (1-parameter programming). The parameter is used as soon as there are wedge sensors fastened directly on the wall of the slanted/bevelled area.
Page 84 Instruction Manual NivuFlow Mobile 750 Input box >Mounting height<  Procedure: 1. Measure the distance between the bottom edge of the mounting plate (v-sensor) and the lowest point of the channel bottom. 2. Enter the measured distance in the >Mounting height< field.
Page 85 Parameter Setting Input field >Distance centre< Observe the real direction of installation Contrary to the usual point of view the user looks in the direction of flow, the v-sensors however look in the direction of the user. While programming, observe that the real position is rotated by 180°. The sensor parameters are set as follows: •...
Page 86: Weighting
Expert knowledge required The weighting value depends on the application as well as the sensor position. Such applications demand comprehensive knowledge on fluid mechanics and require NIVUS personnel or an authorised expert company. page 86 NFM 750 - rev. 03 / 27.05.2020...
Page 87: V-Determination Low Levels
Parameter Setting Fig. 36-20 Weighting v-sensor 36.3.5 v-Determination low levels Due to constructional and physical reasons the flow velocity sensors cannot measure the flow velocity anymore below a certain minimum level. This minimal height is: • Type CSM: 3 cm •...
Page 88 Instruction Manual NivuFlow Mobile 750 Working principle: As soon as the level falls significantly, from a certain point on it is not possible anymore to measure the flow velocity. The transmitter creates an internal table of v/h-readings at the point of the minimum level (h-crit) on which a flow velocity still can be measured. The system here uses the latest measurable flow velocity reading.
Page 89: Limitation Of Velocity Evaluation
Parameter Setting 36.3.6 Limitation of velocity evaluation Adjusting >v-Minimum< and >v-Maximum< sets the limit values for the velocity measure- ment. The transmitter ignores single higher and lower velocities which hence will not be indi- cated. Permanently measured deviations will be represented as “0” and the unit shows only the next following realistic measurement values.
Page 90: Analog Inputs
Instruction Manual NivuFlow Mobile 750 Fig. 36-23 Inputs/Outputs Menu 36.4.1 Analog Inputs The transmitter is equipped with three analog inputs. The inputs are indicated in the top right display corner from where they can be selected individually. The selected analog input is highlighted and the clear name is indicated in the headline.
Page 91: Analog Outputs
Parameter Setting Linearisation: >2-Point< or >Table< For >2-Point< linearisation: manual input of values for 4 or 20 mA. For >Table< linearisation: manual input of the number of >Entries<, then select >Table<, complete and confirm. 36.4.2 Analog Outputs The transmitter is equipped with one analog output 0-10 V. Default setting: output not active The following different functions can be assigned to the analog output: Fig.
Page 92: Digital Inputs
Instruction Manual NivuFlow Mobile 750  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< • Air Temperature The air temperature is available on the selected analog output.
Page 93: Digital Outputs
Parameter Setting • Run Times The system detects and saves the duration of the ongoing signal at the digital input. Such records are used to gather information e.g. on pump run times or other equipment run times.  Selection/Input Options: Logic: >not inverted<...
Page 94 Instruction Manual NivuFlow Mobile 750  Selection/Input Options: Logic: >Normally open< or >Normally closed< Level: manual input; required minimum level for sampling Volume: manual input; flow volume between two sampling actions Duration: manual input; impulse duration to harmonise with the sampler •...
Page 95: Diagnostics Menu
Parameter Setting • Error Message By activating individual selection fields (check box) it is possible to assign individual er- ror types to the digital output. Moreover the output logic can be switched between nor- mally open and normally closed.  Selection/Input Options: Logic: >Normally open<...
Page 96: Trend
Instruction Manual NivuFlow Mobile 750 37.1 Trend The Trend graph is a representational recorder function. Choosing the trend graph provides access to current and previously saved (historic) measurement data. Date/Time selection Indication period Automatic scaling max. range Display with grid lines...
Page 97 Parameter Setting >Selecting Time/Date< Opening the Trend menu shows the current date and time. If you wish to view historic read- ings/a particular point in time select the desired period from the Date/time selection screen (Fig. 37-2 no. 1). Here the selection mask below opens up (Fig. 37-3). The readings are indi- cated (depending on the period set) in the subsequent screen once a start date is selected.
Page 98: Day Totals
Instruction Manual NivuFlow Mobile 750 37.2 Day Totals The table below shows the flow rate totals taken in the last 24 hours. Fig. 37-4 Selection Day Totals Up to 100 totals (= 100 days) are saved. Starting with the 101st value the oldest value will be overwritten (ring memory).
Page 99: Data Memory
Parameter Setting Total Day 4: Total covering 24 hours Power failure Power available again Fig. 37-5 Totalising scheme • Per default the totalising period is between 00:00 o’clock and 24:00 o’clock. This means that day totals are always created between 00:00 o’clock and 24:00 o’clock. •...
Page 100 Instruction Manual NivuFlow Mobile 750 Using the USB interface is allowed only outside of Ex areas. USB Stick Requirements • Supports USB 2.0 • FAT 32 (or FAT 12 or FAT 16) formatted • Max. permissible capacity 32 GB Fig. 37-8 Specify Start/End time •...
Page 101 - Trigger and hydraulic qualities of v-sensor(s) 1, 2 and 3 (if used).  >Expert< This option should be used only by trained service personnel or the NIVUS GmbH developers. Such data sets may become very large very quickly. Apart from the data contained with the “Extended” data set, this option includes extra information on all individual gate velocities as well as all gate positions of any connected v-sensors.
Page 102: System Parameter Menu
Instruction Manual NivuFlow Mobile 750 38 System Parameter Menu 38.1 Information Fig. 38-1 System Information Menu >Information< is a read-only menu and provides the instrument information below: • Serial no. and article no. • MAC address • Firmware version of the transmitter •...
Page 103: Operation) Language
Parameter Setting Fig. 38-2 Region Settings - Language – Date Format 38.2.1 (Operation) Language All listed languages (Fig. 38-2) either contain wordings in the according language or alterna- tively in English. 38.2.2 Date Format The date formats below can be set: •...
Page 104: Units Memory
Instruction Manual NivuFlow Mobile 750 >Unit System< Select from: • Metric • English • American The adjustable units depend on the previously chosen unit system: • Metric system: l, m , cm/s etc. • English system: ft, in, gal/s etc.
Page 105: Time/Date
“Plus-” or “Minus-Hours” symbols defining the time zones compared to UTC. NIVUS highly recommend to leave the transmitter system time unchanged and to define your time zone as well as summer and winter times by using the >Time Zone (UTC)< func- tion.
Page 106: Error Messages
Instruction Manual NivuFlow Mobile 750 38.4 Error Messages Use this menu to recall the currently active queued error messages and to erase the error message memory. The content of the error memory will be instantly erased by choosing >Erase Error Memory<, no security prompt will come up.
Page 107: Service Level
The service levels are split into different, accordingly password-protected access levels. The possible settings as well as the information available here require comprehensive expert knowledge and are not needed for standard applications. This is why the service level is re- served for NIVUS service personnel exclusively. 38.5.2 Restart A transmitter restart interrupts the current measuring process.
Page 108 Instruction Manual NivuFlow Mobile 750 Operating Mode, Storage Cycle, Event Interval and Event type The operation mode determines when and how often the transmitter shall measure and when and how often the measurements shall be saved. Storage cycle, event interval and event type can be adjusted depending on the operation mode.
Page 109: Parameter Menu Communication
NIVUS Web Portal where the data can be selected/shown. To indicate the according measurement place correctly on the overview map in the NIVUS Web Portal featuring the re- spective GPS coordinates it is necessary to correctly set these specifications once. There is no automatic update during measurement operation.
Page 110 (see Fig. 39-3). This may take up to several minutes. The measurement place will be not correctly indicated in the NIVUS Web Portal overview map without the GPS coordinates. In any event, data will be assigned to the right measurement place, however.
Page 111 PUK (found in the unit lid) and a new PIN needs to be specified.  >Provider<: selection of providers; available are T-Mobile Deutschland, Voda- fone, O2, NIVUS and User defined; If user defined is selected enter the provider access data: APN (Access Point Name), possibly user name, possibly password, IP address if required.
Page 112 MQTT transmission must be deactivated first and then the alternative must be activated. • >MQTT< Transmission to NIVUS web portal; alternatively the MQTT protocol can be used to set up a direct connection to customer systems, in such cases contact the NIVUS customer centre.
Page 113 Parameter Setting  >Data<: Specify the data depth to transmit (Standard, Extended and Expert) (see chapter “37.3 Data Memory”).  >Time<: Specify the time of regular transmissions; the time specified serves as start time for the cyclic transmissions.  >Cycle time<: Set the transmission cycle in hours (1, 2, 3, 4, 6, 8, 12 or 24h). ...
Page 114: Parameter Menu Display
Instruction Manual NivuFlow Mobile 750  >Test settings<: Use this menu to verify the settings, the results can be viewed in >Diag Output<.  >Start Data Transmission<: Data (error information, archived data and current values) is transmitted, the result is issued on >Diag Output<.
Page 115: Parameter Menu Battery (12V)
1x NFM0 ZAPB 1215 (E) One NIVUS rechargeable battery installed. The battery specifications are known and available from the software. Setting the number of the NIVUS batteries used enables the correct indication of the battery performance in the >System</>Information< menu. •...
Page 116: Parameter Menu Quick Start
Instruction Manual NivuFlow Mobile 750 42 Parameter Menu Quick Start The >Quick Start< parameter menu is subdivided into four to six pages (depending on the number of v-sensors). The pages >Region Settings< and >Measure Place< are input pages used to define the indication of measurement values and the measurement place itself.
Page 117: Menu >Quick Start< / >Measure Place
Parameter Setting 42.2 Menu >Quick Start< / >Measure Place< Fig. 42-2 Measurement Place The following parameters could be set in the >Measure Place< menu: • Name of Measurement Place • Channel Profile and Dimensions The individual settings are explained in greater detail in chapter “36.1 Menu Measure Place”. 42.3 Menu >Quick Start<...
Page 118: Menu >Quick Start< / >V-Sensor 1
Instruction Manual NivuFlow Mobile 750 42.4 Menu >Quick Start< / >v-Sensor 1< Fig. 42-4 v-Sensor 1 Under >v-Sensor 1< the parameters below are set: • Selection of v-Sensor types • Mounting data • Weighting • v-determination low levels • Limitation of velocity evaluation (v-Minimum/v-Maximum) In case of using multiple sensors use pages “5/6 v-Sensor 2”...
Page 119: Menu >Alert< / >Flow
Parameter Setting 43.1 Menu >Alert< / >Flow< Fig. 43-1 Flow The >Flow< subsection permits to specify up to five different limit values by using the “+” and “-” keys in >Upper threshold Entries< and in >Lower threshold Entries< each of which is used to trigger an alarm e-mail.
Page 120: Menu >Alert< / >Level
Instruction Manual NivuFlow Mobile 750 43.2 Menu >Alert< / >Level< Fig. 43-2 Level The >Level< subsection permits to specify up to five different limit values by using the “+” and “-” keys in >Upper threshold Entries< and in >Lower threshold Entries< each of which is used to trigger an alarm e-mail.
Page 121: Menu >Alert< / >Water Temperature
Parameter Setting The >Velocity< subsection permits to specify up to five different limit values by using the “+” and “-” keys in >Upper threshold Entries< and in >Lower threshold Entries< each of which is used to trigger an alarm e-mail. Define the threshold values by clicking the fields and by entering numerical values.
Page 122: Menu >Alert< / >Battery (12V)
Possible errors are cable breaks, interruptions, short circuits etc. NIVUS recommend checking this option in order to receive an alert via e-mail once a flow velocity sensor should be defective. A defect on the flow velocity sensor causes the flow measurement to fail.
Page 123: Menu >Alert< / >Analog Input 1
Parameter Setting 43.1 Menu >Alert< / >Analog Input 1< Fig. 43-6 Analog Input 1 The >Analog Input 1< subsection permits to specify up to five different limit values by using the “+” and “-” keys in >Upper threshold Entries< and in >Lower threshold Entries< each of which is used to trigger an alarm e-mail.
Page 124: Menu >Alert< / >Analog Input 3
Instruction Manual NivuFlow Mobile 750 The >Analog Input 2< subsection permits to specify up to five different limit values by using the “+” and “-” keys in >Upper threshold Entries< and in >Lower threshold Entries< each of which is used to trigger an alarm e-mail.
Page 125: Menu >Alert< / >Digital Input
Parameter Setting 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. Default setting: unchecked NFM 750 - rev. 03 / 27.05.2020 page 125...
Page 126: Diagnostics
Instruction Manual NivuFlow Mobile 750 Diagnostics 44 Diagnostics Menu Principles Fig. 44-1 Diagnostics Menu The >Diagnostics< menu can be found in the >Application< menu and is split into six sub- menus. This menu and all its submenus are read-only and simulation menus.
Page 127: Diagnostics Menu H-Sensors
Diagnostics 45 Diagnostics Menu h-Sensors Fig. 45-1 Menu Diagnostics h-Sensors This menu has a relation to the menu >Applications</>h-Sensors<. Depending on the type and number of sensors defined here the sections are indicated in the corresponding colours.  See chapter “36.2 Setting Parameters in Menu h-Sensors”. The Diagnostics screen shows the current level and the shaft level.
Page 128: Diagnostics Menu V-Sensors
Indicates the average flow velocity of individual gates (for velocity calculation). • >VGATES< Indicates the virtual and average individual flow velocities and their positions. • >Quality measurement< Relevant for NIVUS commissioning and service personnel. • >Quality trigger< Relevant for NIVUS commissioning and service personnel. • >Noise typical<...
Page 129: Diagnostics Menu Inputs And Outputs
Observe the hints contained within the above warning! Important Note NIVUS herewith in advance refuse any responsibility for any possible damage to persons or objects at any extent due to the extremely high risk of danger and unforeseeable conse- quences in the event of incorrect or faulty simulation! This menu is divided in analog inputs, analog outputs, digital inputs and digital outputs.
Page 130: Diagnostics Menu Flow Profile
Instruction Manual NivuFlow Mobile 750 • >Digital Inputs< Signals oncoming at the digital inputs are indicated by a checked/unchecked box. • >Digital Outputs< Active digital outputs are checked. Actual state of relay The actual state of the real relay cannot be indicated, but only the signal transmitted to the relay.
Page 131: Diagnostics Menu Signal Analysis
Diagnostics The graphic flow profile is calculated following hydraulic methods. The factors below are taken into account while calculating the flow profile: • Individual velocities • Individual levels • Channel profile • Channel dimensions By using more than one flow velocity sensor the quality of this graph can be improved. Hori- zontal hydraulic disturbances become visible as well.
Page 132 Instruction Manual NivuFlow Mobile 750 Fig. 49-2 Signal analysis Correlation / Tx signal • >Correlation< Visual comparison of both signals  >Index<: Gates 1...16  >FFT<: for frequency spectrum display • >Tx signal< Visual representation/signal shape  >Index<: Subsections 1...8 ...
Page 133: Simulation
Diagnostics 50 Simulation DANGER Effects on plant sections The simulation of NivuFlow Mobile outputs will directly affect any following plant sections without any safety locking measures. Observe the hints contained within the warning on page 129! Stop the simulation with “Back”. This menu allows simulation of theoretical flow.
Page 134: Maintenance And Cleaning
• Ambient conditions In addition to the annual inspection NIVUS recommends a complete maintenance of the measurement system by the NIVUS customer service after ten years the latest. In general, the inspection of instruments/sensors is a basic measure which helps to increase operational safety as well as the lifetime.
Page 135: Customer Service Information
Maintenance and Cleaning 51.2 Customer Service Information For annual inspection of the entire measurement system or complete maintenance after ten years the latest contact our customer service: NIVUS GmbH - Customer Service Phone +49 (0) 7262 9191 - 922 Customercenter@nivus.com 52 Cleaning 52.1 Transmitter...
Page 136: Dismantling/Disposal
54 Installation of spare parts and parts subject to wear and tear We herewith particularly emphasise 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 predetermined constructional characteristics of the measurement system or even lead to instrument failures.
Page 137 EnerPro 220 Tr / 5kA, overvoltage protection for power lines BSL0 DP 2X12/12 DataPro 2x1-12V/12V-11H-µTr(N), 20.000 A leakage current, 2-wired for sensor lines You can find more accessories in the valid NIVUS price list. NFM 750 - rev. 03 / 27.05.2020 page 137...
Page 138: Index
Instruction Manual NivuFlow Mobile 750 Index h suppressed ..........76 h-crit ............88 h-crit automatic ........88 Accessories .......... 136 h-manual ..........88 Alarm ............ 118 Hoop guards ...........21 Alert ..........56, 68 Android operating system....... 45 Antenna ..........43 Indication of Capacity Approvals ..........141 Battery ..........115...
Page 139 Index Reception inspection ......20 Waking up Repeatedly measure the same Android ..........45 measurement places ......57 iOS ............48 Restart ..........107 Windows..........52 Return ............. 21 Warranty ..........16 Rubber buffers ........ 21, 137 Windows Operating system .........51 Wires Safeguards ..........15 Colour code ..........11 Sensor test WLAN ...........109...
Page 140: Credits And Licenses
• Zlib (http://www.zlib.net) • Mini-XML (http://www.msweet.org) • Nano-X/nxlib (http://www.microwindows.org) • FLTK (http://www.fltk.org) • Appendix1: LGPL • Appendix2: MPL Questions concerning licenses If you have any questions concerning licenses refer to opensource@nivus.com page 140 NFM 750 - rev. 03 / 27.05.2020...
Page 141: Approvals And Certificates
Approvals and Certificates Approvals and Certificates NFM 750 - rev. 03 / 27.05.2020 page 141...
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