1. Manuals
  2. Brands
  3. Hontzsch Manuals
  4. Measuring Instruments
  5. ExactSonic III
  6. Operating instructions manual

Hontzsch ExactSonic III Operating Instructions Manual

Portable ultrasonic flow meter
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
_________________________________________________________________________________________
ExactSonic III
Portable Ultrasonic Flow Meter
Operating Instructions
_____________________________________________________________________________________
U455_ExactSonicIII_B_e_230330
1 von 49

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the ExactSonic III and is the answer not in the manual?

Questions and answers

Related Manuals for Hontzsch ExactSonic III

Summary of Contents for Hontzsch ExactSonic III

  • Page 1 _________________________________________________________________________________________ ExactSonic III Portable Ultrasonic Flow Meter Operating Instructions _____________________________________________________________________________________ U455_ExactSonicIII_B_e_230330 1 von 49...

  • Page 2: Table Of Contents

    Reflex (V) Mode ............................6 Double Reflex (W) Mode ..........................6 Triple Reflex (WV) Mode ..........................6 Quadruple Reflex (WW) Mode ........................6 Diagonal Mode ............................6 Scope of Delivery .............................7 ExactSonic III Instrument ..........................8 3.1.1 Connections ............................8 3.1.2 Keypad ..............................9 Installation ..............................11 Transducer Positioning ..........................11 Attaching the Transducers ........................12...
  • Page 3 _________________________________________________________________________________________ Current Loop Setup / Analog Output ......................29 8.1.1 Converting the Measured Current to Flow Rate ................30 Digital Outputs ............................31 8.2.1 Pulse Output .............................32 8.2.2 Volumetric Pulse ..........................32 8.2.3 Alarm Output .............................32 8.2.4 Frequency Output ..........................34 NiMh Power Screen ............................34 Power Checklist ............................34 Primary Flow .............................35 Maintenance and Repair ...........................36...

  • Page 4: General Description

    General Description Introduction This manual describes the operation of the ExactSonic III portable flowmeter. The flowmeter is designed to work with clamp-on transducers to enable the flow of a liquid within a closed pipe to be measured accu- rately without needing to insert any mechanical parts through the pipe wall or protrude into the flow sys- tem.
  • Page 5 If the sound characteris-tics of the fluid are known, the ExactSonic III microprocessor can use the results of the transit time calculations to compute the fluid flow velocity. Once the flow velocity is known, the volumetric flow can be calculated easily for a given pipe diameter.

  • Page 6: Reflex (V) Mode

    _________________________________________________________________________________________ Reflex (V) Mode This is the most commonly used mode. The two transducers (U & D) are attached to the pipe in line with each other and the signals passing between them are reflected by the opposite pipe wall. The separation distance is calculated by the instrument in response to entered data concerning the pipe and fluid characteristics.

  • Page 7: Scope Of Delivery

    _________________________________________________________________________________________ Scope of Delivery The ExactSonic III equipment is supplied in a rugged IP67 carrying case fitted with a foam insert to give added protection for transportation. The supplied components are shown below in figure 3.1. Figure 3.1 Standard Equipment...

  • Page 8: Exactsonic Iii Instrument

    _________________________________________________________________________________________ ExactSonic III Instrument The ExactSonic III is a microprocessor controlled instrument, operated through a menu system using an inbuilt LCD and keypad. It can be used to display the instantaneous fluid flow rate or velocity, together with totalised values.

  • Page 9: Keypad

    Menus and the menu selection keys The ExactSonic III menus are arranged hierarchically with the MAIN MENU being at the top level. Menu navigation is achieved by three keys on the right hand side of the keypad which are used to scroll UP and DOWN a menu list and SELECT a menu item.
  • Page 10 _________________________________________________________________________________________ the menu hierarchy, but in some cases it may go directly to the FLOW READING screen. Some screens require you to move the cursor left and right along the display as well as up and down. This is achieved using keys 5 (scroll LEFT) and 6 (scroll RIGHT).

  • Page 11: Installation

    45° with respect to the top of the pipe. The ExactSonic III equipment expects a uniform flow profile as a distorted flow will produce unpredictable measurement errors. Flow profile distortions can result from upstream disturbances such as bends, tees, valves, pumps and other similar obstructions.

  • Page 12: Attaching The Transducers

    ExactSonic III instrument. When fitting the guide rails it is easiest to assemble them onto the separation bar and adjust to the re- quired separation distance before attaching them to the pipe.

  • Page 13: Fitting The Transducers

    Slide the other end of the separation bar into the front of the right-hand guide rail, align the front edge of the guide rail to the required separation distance (obtained from the ExactSonic III instru- ment) on the ruler, then secure it in place by tightening the thumbscrew.

  • Page 14: Connecting Outputs

    _________________________________________________________________________________________ Connecting Outputs The output cable provides a current source that can drive a maximum load of < 600Ω and 3 digital output pairs for pulse, frequency or alarm outputs. The isolated pulse output is provided by a SPNO/SPNC MOSFET relay which has a maximum load current of 500mA and maximum load voltage of 24V AC/DC.

  • Page 15: Connecting The Power Supply

    _________________________________________________________________________________________ Connecting the Power Supply Operating power is provided by an internal battery that can be charged from the utility supply using the supplied external charger. When you first receive the unit, you should charge the battery for a minimum of 15 minutes before use.

  • Page 16: Initial Use And Adjustment Of The Instrument

    If a subsystem is NOT reading OK at start-up, try restarting the ExactSonic III by turning it off then on again. If the error persists, contact your distributor or return the item for repair.

  • Page 17: Setting Date & Time

    _________________________________________________________________________________________ 4.5.3 Setting Date & Time From the MAIN menu, use the UP/DOWN scroll System Settings DD-MM-YY H:MM:SS keys to select ‚Setup Instrument‘. Press the EN- TER key. With ‚System‘ selected in the OPTIONS Lock-screen Timeout menu, press the ENTER key. Back-light mode Use the UP/DOWN arrow keys to select ‚Set Date Back-light Timeout...

  • Page 18: Using The Quick Start Menu

    If the point at which you intend to take the measurement is likely to require regular monitoring it is best to set it up as a „Site“ within the ExactSonic III, which then stores the site parameters (see under 6).
  • Page 19 _________________________________________________________________________________________ Choose the pipe lining material from the following Pipe Lining TT-MM-JJ HH:MM:SS options: ‚None /Rubber/Glass/Epoxy/Concrete‘ If the material is not listed, select ‚Other (m/s)‘ ↱Lining material Glass and enter the propagation rate of the pipe lining Continue.. material in m/s. Main Menu..

  • Page 20: Attaching And Connecting The Transducers

    _________________________________________________________________________________________ If you prefer to use a different configuration, press Sensors TT-MM-JJ HH:MM:SS the UP/DOWN arrow keys to select a different sensor set and mode. ↱Sensor Set A-ST Sensor Mode Reflex NOTE: The SENSORS screen will be displayed automati- Return to Summary Screen.. cally if the entered pipe OD and/or temperature are not Main Menu..

  • Page 21: Calculating The Average Flow

    _________________________________________________________________________________________ To change the totals display: From the MAIN menu, use the UP/DOWN scroll Options DD-MM-YY HH:MM:SS keys to select ‚Setup Instrument‘. Press the EN- TER key. System.. Power.. Out- put.. Heat- Meter.. Log- Use the UP/DOWN arrow keys to select ‚Primary ger..

  • Page 22: Managing Named Sites

    If you want to monitor a particular site location frequently you can set up a named 'Site' to store the installation details, such as pipe dimensions and material, required to set-up the ExactSonic III system. These can then be recalled later when revisiting that particular location.

  • Page 23: Adding A New Site

    _________________________________________________________________________________________ Adding a New Site Select 'View / Edit Site Data' from the MAIN View/Edit Sit TT-MM-JJ HH:MM:SS menu. Select ‚Add new site‘. Choose from list of sites.. Edit the site name. →Add new site.. Site name.. Site01 Press the ENTER key. Pipe outside diameter 114.30 Pipe circumference...

  • Page 24: Calibration Of The Instrument

    Stop the ExactSonic III totalizer and zero it (see under 5.5.2) Start the ExactSonic III reading flow. Use the ExactSonic III totalizer to measure the total flow over a 30- to 60 minute period, and note the total flow indicated by the reference flow meter over the same period.

  • Page 25: Adjusting The Roughness Factor

    _________________________________________________________________________________________ Use the UP/DOWN arrow keys to select ‚Calibration factor‘. Press the ENTER key. Change the calibration factor according to the error calculated in step 3. For example, if the Ex- actSonic III was reading 1% high, decrease the Calibration factor value by approximate this amount. Since that start value is 1.00, the calibration value should be 0.99.

  • Page 26: Adjusting The Damping Factor

    USB flash drive at a later date. Manual Logging This procedure assumes that the ExactSonic III unit has been correctly installed and is operating in the FLOW READING mode. Check that the indicated flow units are the same...

  • Page 27: Scheduling Logging

    Copying Logged Data to a USB Memory Stick This procedure describes how to copy a stored log file to a USB memory stick. Connect a suitable USB memory stick to the ExactSonic III USB socket (see under 3.1.1). Access the MAIN menu.

  • Page 28: Clearing Log Files Von Protokolldateien

    _________________________________________________________________________________________ Select ‚Data Logger‘ from the MAIN menu. Select ‚Choose from list of sites‘ and select the Data Logger DD-MM-YY HH:MM:SS name of the site to download. Choose from list of sites.. When you are ready to begin downloading the log Site name QuickStart select ‚Copy Log‘.

  • Page 29: Outputs

    Current Loop Setup / Analog Output The ExactSonic III allows you to set a current output between 0 mA and 24 mA. Standard ranges include 4-20 mA, 0-16 mA and 0-20 mA. The current range can be used to represent only positive flow, or nega- tive flow ranging into positive flow, or simply negative flows.

  • Page 30: Converting The Measured Current To Flow Rate

    _________________________________________________________________________________________ Setting Flow Options (default) Current Loop Status Off/On Measurement Source Flow Value at min output Metric 0 l/min Imperial 0 gal/min US Imperial 0 US gal/min 0.00 mA Min output current 0.00 mA Calibrate min current Value at max output Metric 2000 l/min Imperial...

  • Page 31: Digital Outputs

    _________________________________________________________________________________________ Digital Outputs The three digital outputs can each be set up to operate in one of three modes:  Pulse Output (set to ‚Normally Open‘ or ‚Normally Closed‘)  Alarm Output (set to trigger on ‚Rising‘ or ‚Falling‘ conditions) ...

  • Page 32: Pulse Output

    _________________________________________________________________________________________ Edit the settings as required (see below). Pulse Output Alarm Output Freq. Output Setting Option/default Setting Option/default Setting Option/default Quantity Volume: 1000 m³ Direction Rising / Low. 0 Hz Falling Freq. Pulse Pulse 50 ms Activation Volume: 0.5 m Low Value Flow: 0.00 l/min Duration...
  • Page 33 _________________________________________________________________________________________ Use the UP/DOWN arrow keys to scroll through the output types. Select ‚Alarm Output‘. Use the UP/DOWN arrow keys to select ‚Measurement Source‘. Choose from ‚Volume‘, ‚Flow‘ or ‚Signal‘. Use the UP/DOWN arrow keys to select ‚Continue..‘. According to your choice in step 6, complete the alarm configuration as described in the following sections.

  • Page 34: Frequency Output

    _________________________________________________________________________________________ 8.2.4 Frequency Output The output frequency is proportional to the flow rate within a specified frequency range of 0 – 200 Hz. With the exception of the ‚Measurement Source‘ being ‚Signal‘, it only makes sense to measure derivate quanti- ties such as Flow.

  • Page 35: Primary Flow

    _________________________________________________________________________________________  If the charger is removed and the device is running on internal power, the battery current will read negative and should be in the region 250 to 300 mA depending on whether the backlight is on or off. 10 Primary Flow The PRIMARYFLOW screen summarises the flow totals and provides options for their display on the FLOW READING screen.

  • Page 36: Maintenance And Repair

    Höntzsch or the seller! WARNUNG Ensure the ExactSonic III is switched off and disconnected from the mains, then wipe the exterior of the instrument with a clean, damp cloth or paper towel. The use of a solvent may damage the sur- face.

  • Page 37: Troubleshooting

    _________________________________________________________________________________________ 12 Troubleshooting 12.1 Overview If you have a problem with your flow monitoring system it can be due to any of the following: Faulty instrument If you suspect the instrument is faulty you can check it out using a test block as described under 12.4. This will establish that the instrument is functional and receiving a healthy signal from the connected transducers.

  • Page 38: General Troubleshooting Procedure

    _________________________________________________________________________________________ 12.2 General troubleshooting procedure Figure 12.1 Troubleshooting chart _________________________________________________________________________________________________ 38 von 49 U455_ExactSonicIII_B_e_230330...

  • Page 39: Warning And Status Messages

    Go to the OPTIONS screen and check the board status. Try first to restart and if the error still persists, reset the ExactSonic III. If after reset, all boards do not report as „OK“, note the failing board and call your distributor or Höntzsch.
  • Page 40 Interpretation: An error occurred copying the CSV from the internal stor- age to the external flash drive. Response: : Try the operation again. If this fails, turn the ExactSonic III off and then on again. Select the site whose log you wish to obtain and...
  • Page 41 Interpretation: The internal battery voltage is less than 5.25 volts. The Shut down in [n] sec! ExactSonic III will perform a controlled shutdown in 15 seconds if an exter- nal charger is not connected. The time to shutdown is [n] seconds.
  • Page 42 _________________________________________________________________________________________ der which the error occurred and report them to the distributor when con- venient. Value out of bounds Interpretation: The values entered were out of bounds for this variable. This error is similar to the error “Limits are xx.x [text] to yy.y [text]”. Response: Enter a valid value.

  • Page 43: Test Block

    Figure 12.2, and temporarily secure them in place using elastic bands or tape. Connect the sensors to the ExactSonic III instrument using the cables provided (see Figure 3.2 and 4.1).

  • Page 44: Reset

    SNR value should be around 55 dB or lower. 12.5 Reset To reset the ExactSonic III, carefully insert a straightened paperclip into the pinhole located in the right- hand side of the instrument to operate the internal reset switch. Hold the paperclip perpendicular to the instrument while doing this.

  • Page 45: Advanced Diagnostics

    _________________________________________________________________________________________ an SNR of greater than 45 dB. A good signal will generally exhibit an SNR of greater than 40 dB. SNR is literally the difference between the Signal level and the Noise level in dB. Signal (dBV) The unreferenced signal level (in dBV) of the received signal Noise (dBV) The unreferenced background noise level (in dBV) of the received signal...

  • Page 46: Appendix

    _________________________________________________________________________________________ 13 Appendix 13.1 Technical Data If you have a problem with your flow monitoring system, the reason may be one of the following: GENERAL Flow Measurement Technique Transit time Flow Velocity Range Minimum Velocity 0.2 m/s; Maximum Velocity 20 m/s: Bi-directional Turn Down Ratio 100:1 Measuring uncertainty...
  • Page 47 _________________________________________________________________________________________ TEMPERATURE SENSORS Type PT100 Class B 4 wire Range +2 to +180 ⁰C (36 to 356 ⁰F) Resolution 0.1 ⁰C (0.2 ⁰F) Minimum Delta t 0.3 ⁰C (0.5 ⁰F) DATa LOGGER Data Logged Log application details, time, date, flow rate, forward total, reverse total, flow velocity, signal Quality, signal SNR, signal status.
  • Page 48 _________________________________________________________________________________________ output @24 mA, all outputs activated. Recharge Time Typically < 2.5 Stunden. Service Life > 500 charge/discharge cycles MECHANICAL SPECIFICATIONS CARRYING CASE Rating All components are contained in a hard-wearing carrying case with a protective moulded foam insert. HOUSING Material Flame retardant injection moulded ABS Dimensions...

  • Page 49: Declaration Of Conformity, Declaration Of Incorporation

    Höntzsch GmbH & Co. KG Gottlieb-Daimler-Str. 37 D-71334 Waiblingen Deutschland erklären in alleiniger Verantwortung, dass das Produkt ExactSonic III Clamp-On-Ultraschall-Durchflussmessgerät auf das sich diese Erklärung bezieht, mit den folgenden Normen oder normativen Dokumenten übereinstimmt: Richtlinie 2014/30/EG des Europäischen Parlaments und des Rates vom 26.

Table of Contents