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OTT Lufft Ventus UMB Manual

Ultrasonic wind sensor
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Ventus Ultrasonic Wind Sensor
Operational Manual

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Summary of Contents for OTT Lufft Ventus UMB

  • Page 1 Ventus Ultrasonic Wind Sensor Operational Manual...
  • Page 2 70736 Fellbach Germany +49 711 51822 -0 met-info@otthydromet.com www.otthydromet.com All rights reserved. All content is the intellectual property of OTT HydroMet. Reprinting, duplication and translation (even as excerpts) are only permitted with the prior written consent of OTT HydroMet. Subject to technical change.

  • Page 3: Table Of Contents

    Table of contents Scope of supply Order numbers and variant code Product variants Accessories About this manual Other applicable documents and software General signs and symbols Explanation of warnings General safety instructions Intended use Potential misuse Personnel qualification Operator obligations Personnel obligations Correct handling Health hazards...
  • Page 4 Storage Installation Mechanical installation 7.1.1 Required tools and aids 7.1.2 Choosing a site 7.1.3 Fastening 7.1.4 Aligning to north Electrical installation 7.2.1 Connecting power supply 7.2.2 Electrical connections 7.2.3 Supply voltage 7.2.4 RS485 Interface 7.2.5 Analog interface circuits 7.2.6 Control line 7.2.7 Connecting ISOCON-UMB converter 7.2.8...
  • Page 5 Commissioning for MODBUS format 10.1 Device set-up 10.2 Configuration and testing 10.3 Addressing 10.4 MODBUS functions 10.5 Function 0x03 Read Holding Registers 10.6 Function 0x06 Write Holding Register, 0x10 Write Multiple Registers 10.7 Function 0x04 read input registers 10.8 Sensor status Maintenance 11.1 Maintenance schedule...

  • Page 6: Scope Of Supply

    1 Scope of supply The following items are included with delivery: – Ultrasonic wind sensor – Connection plan <6>...

  • Page 7: Order Numbers And Variant Code

    2 Order numbers and variant code 2.1 Product variants Variant Order number Ventus-UMB (metal) 8371.UMT Ventus-X-UMB (metal) 8371.UMTX V200A-UMB (plastics) 8371.UA01 2.2 Accessories Item Order number Power supply unit Phoenix contact TRIO-PS/1AC/24DC/10 ISOCON-UMB 8160.UISO Surge protection 8379.USP-V Connector 8371.UST1 Amphenol C091 31D008 101 2 Connection cable 15 m 8371.UK015 <7>...

  • Page 8: About This Manual

    3 About this manual 3.1 Other applicable documents and software The following documents contain further information on installation, maintenance and calibration: – User Manual Ultrasonic Wind Sensors – Operating Manual UMB ISO Converter ISOCON – Operating instructions surge protection The following documents and software can be downloaded at www.lufft.com: –...

  • Page 9: Explanation Of Warnings

    3.3 Explanation of warnings To avoid personal injury and material damage, you must observe the safety information and warnings in the operating manual. The warnings use the following danger levels: WARNING WARNING This indicates a potentially hazardous situation. If the hazardous situation is not avoided, it may result in death or serious injuries.

  • Page 10: General Safety Instructions

    4 Do not change or convert the product in any way. 4 Do not perform any repairs yourself. 4 Get OTT HydroMet to examine and repair any defects. 4 Ensure that the product is correctly disposed of. Do not dispose of it in household waste.

  • Page 11: Health Hazards

    4.7 Health hazards 4.7.1 Risk of electrical shock Live parts can cause electric shocks in the event of contact. 4 Never take measurements on live electrical parts. 4 Never touch live electrical parts. 4.8 Working outdoor 4.8.1 Installation and maintenance at great heights It is advised to mount the product in a certain height.

  • Page 12: Safety

    IC (CN) Canadian Radio Interference-Causing Equipment Regulation, ICES-003, Class B This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations. Canada ICES-003 (B) / NMB-003 (B) 4.9.2 Safety IEC 61010-1:2010 EN 61010-1:2010 UL 61010-1:2012-05 CAN/CSA-C22.2 No. 61010-1:2012-05 <12>...

  • Page 13: Product Description

    5 Product description 5.1 Design and function The ultrasonic wind sensor is used to measure and report wind direction, wind speed and calculate virtual temperature. Depending on the model, the device has a metal or plastic housing and an additional heating for winter operation. The equipment is connected by way of an 8 pole screw connector and associated connection cable (length 15 m).
  • Page 14 Measurement sections When measuring in still air all times of flight of one cycle will be equal on average. If however an air flow is passing through the sensor, the ultrasonic pulse packet moving in the direction of the air flow will be accelerated, while the packet moving in opposite direction to the air flow will be decelerated.

  • Page 15: Virtual Temperature

    The differences of the time of flight are averaged over a number of measurements, then the wind speed and wind direction is evaluated from the average. The design of the sensor head protects, to a large extend, the measurement sections against rain and snow. The heating of the sensor prevents icing of the ultrasonic transceivers.

  • Page 16: Heating Capacity

    Mode Performance testmode The switch-on temperature is adjusted to +40 °C; in this condition the heating switches on at room temperature (for test purposes only) ctrl high Heating control is disabled when the control line is at the “high” level, else automatic ctrl low Heating control is disabled when the control line is at the “low”...

  • Page 17: Transport, Storage, And Unpacking

    6 Transport, storage, and unpacking 6.1 Unpacking 4 Carefully remove the product from the packaging. 4 Check that the delivery is complete and undamaged. 4 If you find any damage or if the delivery is incomplete, then immediately contact your supplier or manufacturer.

  • Page 18: Installation

    7 Installation 7.1 Mechanical installation 7.1.1 Required tools and aids The following tools and aids are required: – hexagon socket 4.0 – compass 7.1.2 Choosing a site WARNING Risk of injury due to improper installation! If the mast or the device is installed improperly, damage to the device and injury to people may result. 4 Ensure that the mast stands on a stable surface.

  • Page 19: Fastening

    Buildings, bridges, embankments and trees may corrupt the wind measurement. Passing traffic may cause gusts which may influence the wind measurement. 7.1.3 Fastening The mounting bracket is designed to be installed on top of a mast with a diameter of 50 mm (2"). Ventus Mast 4 Loosen the nuts.

  • Page 20: Electrical Installation

    4 If the device is already installed, loosen both nuts evenly until the device can be turned easily. 4 Using the compass, identify the north and fix a point of reference on the horizon. 4 Position the device in such a way that the south and north sensors are aligned with the fixed point of reference in the north.

  • Page 21: Electrical Connections

    Example – Cable length 15 m: maximum of 150 W heating power available on the device – Cable length  15 m: must be adapted to a larger cable cross-section in the supply wires (2.5 - 4 mm > corresponds to approx. 20 - 50 m cable length) 7.2.2 Electrical connections WARNING Electric shock due to incorrectly connected device!
  • Page 22 Two options for the power supply are available, when connecting the device to a SDI-12 logger: 4 Connect the SDI-12 12 V line. 4 Alternatively, connect a separate power source, isolated from the logger. (NOTE: OTT HydroMet recommends the Phoenix contact TRIO-PS/1AC/24DC/10)

  • Page 23: Supply Voltage

    The specification of SDI-12 requires only 0.5 A max. load of for the 12 V line. This is insufficient for the sensor heating. 4 In case of power supply through the SDI-12 bus, deactivate the heating in the Ventus configuration. If heating is required, power supply through a separate source with sufficient performance has to be chosen: Number Color Assignment...

  • Page 24: Analog Interface Circuits

    – SDI-12 mode is possible – firmware update is possible Factory default 7.2.5 Analog interface circuits Two analog interface circuits are provided for analog data transmission. The circuits are updated every 250 ms. The channels to be transmitted by way of the two interfaces can be adjusted in the UMB-Config-Tool. Default values: Channel 400 (current wind speed in m/s (A)), Channel 500 (current wind direction (B)).

  • Page 25: Connecting Isocon-Umb Converter

    7.2.6.3 Control of telegram transmission in NMEA protocol Telegram transmission triggered on rising or falling edge of control voltage. Telegram transmission while control voltage is "high" or "low". 7.2.7 Connecting ISOCON-UMB converter The ISOCON-UMB communication module converts RS485 into RS232. +12V GND1 +24V GND2 Green: RS485 interface A Yellow: RS485 interface B...

  • Page 26: Commissioning For Umb Data Format

    4 If several devices are operated on a UMB network, assign a unique device ID to each sensor. 8.2 Configuration and testing For configuration and testing OTT HydroMet Fellbach GmbH provides the proprietary software ConfigTool.NET. ConfigTool.NET can also be used to update the firmware of the device.

  • Page 27: Configuration Using Umb Binary Protocol

    8.3 Configuration using UMB binary protocol 8.3.1 Configuration using older versions of ConfigTool.NET When using older versions of ConfigTool.NET or other tools the communication can be opened by the following procedure: 4 Connect the PC to the device through a RS485 converter. 4 Open the page Device Settings.
  • Page 28 Parameter Description Wind heater boost time Length of heater boost in seconds (0 to 900 sec) default: 300 sec Setpoint temperature for Setpoint temperature for the heating boost in °C, max. 40 °C wind heater boost default: 40 °C Min. error time for heater Minimum time of wind measurement error status in seconds, for triggering the boost heater boost, max.
  • Page 29 8.3.2.3 Pressure settings Parameter Description Pressure offset Absolute offset (for on-site adjustment) on the measured value Counts of measurements Number of measured values used for determining the statistical values of average, minimum value and maximum valve default: 10 Relative air humidity [%] Assumed average value of relative humidity, used for calculation of air density default: 75 % 8.3.2.4 Analog output settings...

  • Page 30: Selecting Device

    Parameter Description Error current Current that is delivered in case on an error default: 2 mA Additional parameter for analog output 1 Voltage (if used as Voltage that represents the high states of the frequency signal frequency output) 0 - 10 V default: 5 V Example The wind speed of 0 - 90 m/s is generated as 4 - 20 mA.

  • Page 31: General Settings

    8.3.4 General settings Parameter Description Device-ID Factory setting: 1 Assign the IDs for the devices in ascending order. Device description To differentiate the devices enter a description, e.g. the location. Baudrate Transmission speed of the RS485 interface Factory setting: 19200 DO NOT change for operation with ISOCON-UMB.
  • Page 32 4 Click on the desired channel. <32>...

  • Page 33: Example Online Data Request

    Example of measurement polling The ConfigTool.NET software is provided for test and configuration purposes only. The tool is not suitable for the permanent acquisition of measurement data. For this purpose the use of professional software is recommended, e.g. Lufft SmartView3. 8.5 Example online data request Only one example of an online data request is described in this operating manual.

  • Page 34: Addressing With Class And Device Id

    8.5.2 Addressing with Class and Device ID Addressing takes place by way of a 16 bit address. This breaks down into a Class ID and a Device ID. Address (2 bytes = 16 bit) Bits 15 – 12 (upper 4 bits) Bits 11 –...

  • Page 35: Status And Error Codes In Binary Protocol

    The response from the device: SOH <ver <to> <from> <len STX <cm <ver <sta <channel <typ <value> ETX <cs> > > d> c> tus> > > 01h 10h 01h 80h 01h F0h 04h 02h 23h 10h 00h 64h 00h 16h 00h 00h B4h 41h 03h 1Fh 94h 04h Interpretation of the response: <status>...

  • Page 36: Commissioning For Sdi-12 Data Format

    9 Commissioning for SDI-12 data format The devices can be operated with various protocols, e.g. UMB Binary and UMB-ASCII 2.0. Further information on the protocols and the full description of the UMB channels, or the ASCII, NMEA, SDI-12 and Modbus protocol can be found in the User Manual Ultrasonic Wind Sensors. 9.1 Device set-up Preconfigured devices with the SDI-12 protocol are available on inquiry.
  • Page 37 – The commands for continuous measurement (R-commands) are used to request the data. Command Function Address search (Wildcard request, one device only on bus!) Request device active? Request device identification aAb! Address change to b ( 0 … 9, A … Z, a … z) Measurement basic minimal data set aM1! Measurement, Temperature Values...

  • Page 38: Data Messages

    Address configuration The UMB device-ID and SDI-12 address are connected. The different address ranges and the fact that UMB IDs are integer numbers, while SDI-12 addresses are ASCII characters, have to be considered. The SDI-12 address is built from the UMB device ID as follows: UMB device ID 1 (default) corresponds to SDI-12 address ‘0’...

  • Page 39: Additional Measurement Commands

    Example: C Request 000019<CR><LF>: 18 Values available 0D0! 0+13.5+2.5+3.7+2.6<CR><LF> Air temperature 13,5°C, curr.. wind speed 2,5m/s, max. wind speed 3,7m/s, avg.wind speed 2,6m/s 0D1! 0+136.4+134.0+100.0+1010.4+1.160<CR><LF> Curr. wind direction 136,4 °, avg. wind direction(vct) 134,0 °, quality of wind measurement 100 %, rel. air presssure (curr) 1010.4 hPa, air density 1.16 kg/m³...

  • Page 40: Message Device Identification

    9.6 Message device identification The device responds to the identification request with following message: Example: SDI-12 device address ‘0’ 013Lufft.deVentusy00 y: Metric / US units (m = metric, u = US) nnn: Software version Example: Ventus, configured for imperial US units 013Lufft.deVentusu00 9.7 Message verification Further information can be found in the User Manual Smart Weather Sensors.
  • Page 41 The status data of the channels are assembled to form “fake measurement values”, where each digit represents one status. The coding of the status is listed below. Generally each sensor has two status values, one for the current measurement value, and one for the value buffer, which is used for averaging and the evaluation of minimum and maximum.

  • Page 42: Sensor Configuration Commands For Unit System, Altitude, And Heating Mode

    9.8 Sensor Configuration Commands for Unit System, Altitude, and Heating Mode Message Selection of Measurement Unit System The command is used to change the unit system used for the display of the SDI-12 data between metric and US units. The command is implemented as X command. Command: aXU<u/m>! Response: aU<u/m><CR><LF>...

  • Page 43: Commissioning For Modbus Format

    10 Commissioning for MODBUS format The devices can be operated with various protocols, e.g. UMB Binary and UMB-ASCII 2.0. Further information on the protocols and the full description of the UMB channels, or the ASCII, NMEA, SDI-12 and Modbus protocol can be found in the User Manual Ultrasonic Wind Sensors. 10.1 Device set-up To enable the integration of Ventus wind meters into PLC and similar environments communication with Modbus protocols is provided.

  • Page 44: Modbus Functions

    10.4 MODBUS functions For the smart weather sensors, the functions of conformance class 0 and 1 have been implemented, which operate at register level. Further information can be found in the User Manual Ultrasonic Wind Sensors. Command Function Comment Conformance Class 0 0x03 Read holding registers Selected configuration settings...

  • Page 45: Function 0X06 Write Holding Register, 0X10 Write Multiple Registers

    The register value is calculated as (power mode) + 256 * (operating mode), e.g. full power, automatic: 0 + 256 * 1 = 256, or reduced power, automatic: 1 + 256 * 1 = 257 10.6 Function 0x06 Write Holding Register, 0x10 Write Multiple Registers Selected parameters of the Ventus can be adjusted by writing to the Modbus holding registers.
  • Page 46 Register Register Value Range Scaling, signed/ number address (UMB channel) unsigned, remarks during system start. Please contact Lufft Service with reference to the indicated code. Sensor Status 1 Air temperature buffer, air Coding 4 bit per temperature, air pressure buffer, status, s.
  • Page 47 Register Register Value Range Scaling factor number address (UMB channel) signed/unsigned Wind Speed m/s (vct.) Factor 1, s Values in imperial US Units Air Temperature °F (act.) Factor 10, s Air Temperature °F (min.) Factor 10, s Air Temperature °F (max.) Factor 10, s Air Temperature °F (avg.) Factor 10, s...

  • Page 48: Sensor Status

    10.8 Sensor status Each register holds 4 sensor states, coded with 4 bits per state, which together form a 16-bit number. The sequence is defined from the most significant half-byte to the least significant half-byte. Most sensors have 2 status values, one for the sensor and the current measurement value, another one for the buffer, from which the average value and the minimum and maximum values are evaluated.
  • Page 49 Sensor state Code MEAS_ERROR MEAS_UNABLE INIT_ERROR VALUE_OVERFLOW CHANNEL_OVERRANGE VALUE_UNDERFLOW CHANNEL_UNDERRANGE BUSY Other Sensor State Coding of sensor status <49>...

  • Page 50: Maintenance

    11 Maintenance 11.1 Maintenance schedule The frequency of cleaning is dependent upon the local weather and environmental conditions. The following maintenance intervals are recommended: Interval Activity Performed by Annually 4 Check the device for cleanliness. Operator 4 Check the device by carrying out a measurement request.

  • Page 51: Troubleshooting

    12 Troubleshooting 12.1 Error elimination Error Possible cause Corrective action Device does not allow polling or Device does not work properly 4 Check the power supply. does not respond 4 Check the interface connection. Device does not allow polling or Incorrect device ID is applied 4 Check if the correct device ID is does not respond...
  • Page 52 Possible cause Corrective action Device transmits an unknown – 4 Report any malfunction to the error value representative of OTT HydroMet. Minimum value of wind direction Minimum and maximum value of – greater than maximum value wind direction indicates the...

  • Page 53: Repair

    13 Repair 13.1 Customer support 4 Have repairs carried out by OTT HydroMet service personnel. 4 Only carry out repairs yourself, if you have first consulted OTT HydroMet. 4 Contact your local representative: www.otthydromet.com/en/contact-us 4 Include the following information: – instrument model –...

  • Page 54: Notes On Disposing Of Old Devices

    In accordance with the German Electrical and Electronic Equipment Act (ElektroG; national implementation of EU Directive 2012/19/EU), OTT HydroMet takes back old devices in the Member States of the European Union and disposes of them in the proper manner. The devices that this concerns are labeled with the following symbol:...

  • Page 55: Technical Data

    15 Technical data 15.1 General technical data Specification Value Fastening Pole with diameter 50 mm Housing Seawater-resistant aluminum AlMg3Si Protection class III (SELV) Protection type IP68 (metal) IP66 (plastics) Operating temperature range -40 to +60 °C (with heating) Operating temperature range -20 to +60 °C (without heating) Humidity range 0 to 100 % Storage temperature range...

  • Page 56: Dimensions And Weight

    Specification Value Tri-state 2 bits after stop bit edge Baudrate 19200 (UMB) 1200 (SDI-12) Adjustable baud rates 1200, 2400, 4800, 9600, 14400, 19200, 28800, 57600 Analog interface circuits (2 A: 0 or 4 – 20 mA / 0 or 2 – 10 V / 2 – 2000 Hz adjustable channels) B: 0 or 4 – 20 mA / 0 or 2 – 10 V Maximum load 300 Ohm...

  • Page 57: Measuring Range And Accuracy

    15.5 Measuring range and accuracy Wind speed Specification Value Measurement process Ultrasound Measuring range 0 to 90 m/s Resolution 0.01 m/s Accuracy ±0.2 m/s or ±2 % (0 to 65 m/s) RMS (metal) (the higher value) ±5 % (> 65 m/s) RMS (metal) ±0.3 m/s or ±3 % (0 to 35 m/s) RMS (plastics) (the higher value) ±5 % (> 35 m/s) RMS (plastics) Response threshold...
  • Page 58 Air pressure Specification Value Measurement process MEMS sensor - capacitive Measuring range 300 to 1200 hPa Resolution 0.1 hPa Accuracy ±1.5 hPa Sampling rate 10 sec Unit <58>...

  • Page 59: Appendix

    16 Appendix 16.1 Channel list summary The channel assignment described here applies to online data requests in binary and ASCII protocol. UMB Channel Measuring Range special Measurement Variable (float) unit Temperature – Virtual temperature -50.0 70.0 °C – Virtual temperature -58.0 158.0 °F...

  • Page 60: Buffer Assignment Measurement Data

    Information about the channel list summary according to TLS2002 can be found in the User Manual Ultrasonic Wind Sensors. 16.2 Buffer assignment measurement data Measurement value UMB channel Minimum Maximum Unit Buffer '0' in metric units Air temperature (act) -50.0 70.0 °C Wind speed (act)

  • Page 61: Buffer Assignment Additional Measurement Data

    Measurement value UMB channel Minimum Maximum Unit Buffer '3' in imperial US units Air temperature (min) -58.0 158.0 °F Air temperature (max) -58.0 158.0 °F Air temperature (avg) -58.0 158.0 °F Buffer '4' in metric units Rel. Air Pressure (min) 300.0 1200.0 Rel.
  • Page 62 Measurement value UMB Channel Minimum Maximum Unit Wind Speed (max) 201.3 Wind Speed (avg) 201.3 Wind Speed (vct) 201.3 Buffer '1' in metric units Wind Direction (act) 359.9 ° Wind Direction (min) 359.9 ° Wind Direction (max) 359.9 ° Wind Direction (vct) 359.9 °...
  • Page 63 <63>...
  • Page 64 Contact Information...

This manual is also suitable for:

Lufft v200a umbLufft ventus x umb

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