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SOMMER USH-9 Manual

Ultrasonic level sensor
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USH-9
Ultrasonic level sensor
Manual
Setup version 2.45 (Firmware 1.83)
05 February, 2020
Sommer Messtechnik
All rights reserved.

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  • Page 1 USH-9 Ultrasonic level sensor Manual Setup version 2.45 (Firmware 1.83) 05 February, 2020 Sommer Messtechnik All rights reserved.

  • Page 2: Iout

    6842 Koblach Austria This manual or parts of it may only be copied or passed on to third parties with written permission of Sommer Messtechnik. This applies to printed as well as digital issues of this manual. Sommer Messtechnik Strassenhäuser 27...
  • Page 3 FCC ID: UXSIMS944 Feedback Should you come across any error in this manual, or if you miss information to handle and operate the USH-9 we are very grateful for your feedback to office@sommer.at.
  • Page 4 Prior to installation of equipment inform the owner of the measurement site or the authority responsible for it. Upon completion, secure the installation from trespassers. Maintenance and repair must be performed by trained personnel or an engineer of Sommer Messtechnik. Only replacement parts supplied by Sommer Messtechnik should be used for repairs.

  • Page 5: Table Of Contents

    Mounting 7.3.2 Power supply 7.3.3 Signal cables 7.3.4 Lightning protection Maintenance How do I test the USH-9 indoors? Support software Commander What can I do with it? How do I install it? 9.2.1 System requirements 9.2.2 Installation procedure 10 Configuration 10.1 Configuration with Commander support software...
  • Page 6 10.5 How do I configure the USH-9 for snow measurements? 10.6 How do I configure the USH-9 for water level measurements? 11 Serial communication 11.1 What are the options? 11.2 Which data do I get? 11.2.1 Main values 11.2.2 Special values 11.2.3...
  • Page 7 12.3.2 IOUT 1 12.3.3 IOUT 2 12.3.4 Simulate current output 13 Parameter definitions Measurement trigger Measurement Interval Level and distance Measurement duration Level/distance test Adjust level Distance to zero level Application Moving filter, duration Moving filter, type Technics Language/Sprache Decimal character SDI-12 address Units and decimals D-D-A...
  • Page 8 RoC, max. without precip. (./h) D-H-G RoC, max. at precip. (./h) D-H-H Precipitation, filter duration D-H-I Reset behavior D-H-J Sleep mode D-H-K Sommer ID RS-485 Protocol D-I-A Device number D-I-B System key D-I-C Output protocol (OP) D-I-D OP, measurement output...
  • Page 9 Relaunch program Measurement table Appendix A Device Errors...

  • Page 10: What Is The Ush-9

    It measures the transit time of an ultrasonic signal between a variable surface and the USH-9 sensor, and translates it to a snow or water level. An integrated processor compensates the detected signal for temperature and filters interfering reflections of precipitation within the measurement path.

  • Page 11: Unpacking

    2 Unpacking When unpacking your USH-9 sensor box please make sure that the following items are present: Item USH-9 sensor including sensor mount, sensor cable 10 m and RS-485 to USB converter Manual and Commander Software on USB stick Commander software In case of missing or damaged items please contact your Sommer sales partner.

  • Page 12: How Do I Start

    7. Click Connect to establish a connection with the USH-9. If the connection was successful a green icon is displayed at the top-right corner of the Commander window. 8. Select the tab...

  • Page 13: Configure The Sensor

    2. Select the measurement trigger (see What do I need to configure?) 3. Configure the USH-9 for the required application (see How do I configure the USH-9 for snow measurements? How do I configure the USH- 9 for water level measurements?

  • Page 14: Specifications

    4 Specifications Physical and environmental Power supply 9...28 VDC; Reverse voltage protection, overvoltage protection Power consumption at Sleep mode: <0.4 mA Active measurement: typically 40 mA (max. 300 mA for 0.05 s) 12 VDC Shield heating (optional): 1 A Outputs RS-485 ASCII / Modbus RTU SDI-12 2 Analog outputs 4…20 mA (14 bit, max.
  • Page 15 Non-linearity ≤0.15% Measurement duration 2…20 s Measurement interval 20 s…3 h Measurement principle Ultrasonic (frequency 50 kHz) Beam aperture 12° Temperature measurement Temperature sensor Pt1000 with radiation shield Measurement range -40…60 °C (-40…140 °F) Accuracy 0.3 °C Resolution 0.01 °C Manual...

  • Page 16: Connectors

    Snow depth (4…20 mA) Table 1: Configuration of connector MAIN NOTE The analog outputs and the trigger input are referenced to GND on pin Wire colour of the provided “Sommer” cable According to TI notation which differs from the standard EIA notation Manual...

  • Page 17: How Does The Ush-9 Work

    6 How does the USH-9 work? The USH-9 is a sensor to measure distance contact-free. Ultrasonic pulses with a frequency of 50 kHz are emitted from the sensor-head and are reflected at any surface. The reflected signal is then detected by the sensor and from the travelling-time of the pulses the distance to the surface is cal- culated.

  • Page 18: Installation

    Ø32...60 mm 13 mm open end wrench cable ties wire cutter How do I install the USH-9? 7.3.1 Mounting The USH-9 can be mounted to a horizontal tube with the included bracket (max. tube diameter 60 mm) as shown in Figure Manual...
  • Page 19 Figure 4 USH-9 with mounting bracket When planning the installation of a USH-9 the extension of the cone-shaped measurement beam has to be taken into account. The higher the sensor is mounted the bigger the diameter of the measurement spot. Consequently, the mast and cross-beam must be designed in such a way that they do not interfere with the ultrasonic beam and thus create unwanted reflections.

  • Page 20: Power Supply

    It is recommended to mount the USH-9 one meter above the maximum expected level and min- imum 3 m above ground. The maximum mounting height is 10.5 m above ground. As an accessory, Sommer provides a 1.6 m long, rotatable cross-arm for easy sensor mounting.

  • Page 21: Lightning Protection

    Consult an expert for advice. The USH-9 is protected against overvoltage. If a data logger is mounted to the mast, its ground lug must be properly connected to earth ground.

  • Page 22: Maintenance

    Do not use any abrasive detergent or scraping tool! How do I test the USH-9 indoors? To test the USH-9 and to verify its distance/level measurements turn the device upside down so that it is facing the ceiling of a room. Now, click the button...

  • Page 23: Support Software Commander

    9 Support software Commander What can I do with it? The Commander is a multipurpose software tool to configure and operate any Sommer Mess- technik device. It offers the following functions: Communication with Sommer Messtechnik sensors and data loggers via serial connection, modem, socket, IP-call and Bluetooth®...
  • Page 24 Read the instructions and click Next Select the installation type and click Next Manual...
  • Page 25 Only for me No admin rights are required. Updates are only available to the user who installed the software. Installation folders: User program folder: Users\User\AppData\Local\Programs\Sommer\Commander Data structure: Users\User\AppData\Local\Programs\Sommer Specific folder (default): C:\Sommer\Commander Data structure (default):...
  • Page 26 Standard program folder: Program Files (x86)\Sommer\Commander Data structure: Users\Public\Public documents\Sommer Specific folder (default): C:\Sommer\Commander Data structure (default): C:\Sommer Select the installation directory and click Next. Select the features to be installed and click Next. Manual...
  • Page 27 Click Install to start the installation. Click Finish to complete the installation. Manual...
  • Page 28 Manual...

  • Page 29: Configuration

    Configuration with a terminal program 10.1 Configuration with Commander support software Follow the steps below to modify the configuration parameters of the USH-9: 1. Establish a connection between your PC and the USH-9 as described in Connect the USH-9 to Select the tab...
  • Page 30 Save the parameter file to your PC by clicking Save parameter file. This step is recommended to track any configuration changes. Manual...

  • Page 31: Configuration With A Terminal Program

    The Commander software ships with an integrated terminal program. However, communication with the USH-9 can be performed with any terminal program. Follow the steps below to modify the configuration parameters of the USH-9: 1. Establish a connection between your PC and the USH-9.
  • Page 32 NOTE As an unwanted switching into the menu mode has to be avoided the timing of the three question marks ??? is very restrictive and must never be finished with Return/Enter. This is especially import- ant for command line tools, which may automatically send a closing "Carriage return”.

  • Page 33: Configuration Errors

    10.3 Configuration errors 10.3.1 Conflict messages During configuration via RS-485, the USH-9 may return conflict messages after one or more para- meters have been changed and uploaded to the device. An example is shown in Figure Figure 6 Conflict message...
  • Page 34 If this is not the case, IOUT2, function is changed to off. Table 3: Parameter conflict messages Setup conflict A setup conflict message as listed below is returned if a modified setup with conflicting parameters is loaded onto the USH-9. Manual...

  • Page 35: What Do I Need To Configure

    Table 4: Setup conflict messages 10.4 What do I need to configure? When first setting-up a USH-9 at a measurement site, the parameters described below may need to be adapted. 10.4.1 General settings Measurement trigger...
  • Page 36 This ensures that the analog meas- urement has sufficiently stabilized . Measurement Interval An internal measurement interval can be set for the USH-9. If selected in menu item Measurement trigger, measurements are performed in the defined interval. However, a measurement is always completed before a new one is initiated.

  • Page 37: Level/Distance Measurement

    The type of the serial output protocol. The following options are available: Option Description Sommer (default) Sommer protocol; data values are returned with an index starting at 1 Standard Standard protocol; data values are returned without an index MODBUS Modbus protocol OP, information The main measurement values are always included in the data output string.
  • Page 38 Function to test the level/distance measurement. Initiates a measurement and returns the current distance and level. Adjust level Function to adjust the level measurement of the USH-9 to the actual level. It first initiates a meas- urement and then requests the actual level. Distance to zero level The distance between the sensors lower edge and the ground surface, e.g.

  • Page 39: How Do I Configure The Ush-9 For Snow Measurements

    10.5 How do I configure the USH-9 for snow measurements? By default the USH-9 is configured for snow applications. This can be checked in the setting Applic- ation, which is set to snow. If the USH-9 needs to be re-configured for snow applications, set...

  • Page 40: How Do I Configure The Ush-9 For Water Level Measurements

    Settings 2 and 3 may be adapted to the flow conditions of your river or channel. See Parameter definitions or more details. ATTENTION Make sure to upload the modified parameters to the USH-9 and test the new settings as described in How do I test the USH-9 indoors?. Manual...

  • Page 41: Serial Communication

    Modbus SDI-12 11.2 Which data do I get? The measurement values returned by the USH-9 are arranged in a fixed sequence and identified by an index. They are divided into three groups and can be selected in information. 11.2.1 Main values...

  • Page 42: Special Values

    11.2.2 Special values Measurement Index Unit Description value Precipitation Dimensionless value representing precipitation type and intens- ity. Its range is 0 to 1000, where 1000 is the most intensive pre- cipitation that can be expected. The value strongly depends on the type of precipitation: wet snow that falls in large flakes gives high values, cold, small flakes give lower values even though snowfall can be intense.

  • Page 43: Exception Values

    Index Measurement value Unit Description Echo amp. Diagnostic variable Var. 1 Diagnostic variable Var. 2 Diagnostic variable Var. 3 Diagnostic variable Dist. max. echo Diagnostic variable Dist. last echo Diagnostic variable Distance 0 C Diagnostic variable Case temperature °C Diagnostic variable Error code Diagnostic variable Table 7:...

  • Page 44: Rs-485

    USH-9. 11.3.3 How do I wire it? The USH-9 can be connected to a data logger or a RS-485 network according to the figure below. Figure 7 Wiring of the USH-9 with a data logger via RS-485 11.3.4 How do I configure it?
  • Page 45 Flow control none System key and device number The system key and device number are used to identify a USH-9 in a bus system. This is essential if multiple devices ( USH-9 and data loggers) are operated within the same system.
  • Page 46 The sync sequence is the string UU~?~? and is sent directly before a command. It is used to syn- chronize the receiving UART. Prefix The prefix is an arbitrary character; the USH-9 uses a blank. This character is sent prior to any com- munication. Then the time of the OP, prefix holdback is waited and the command is sent after- wards.

  • Page 47: How Is The Output Structured

    Output protocol (OP): Sommer protocol Standard protocol 11.3.6 Sommer protocol The data string of the Sommer protocol has the following format: EXAMPLE #M0001G01se01    1461|02    1539|03   25.25|04       0|3883; Header The header (#M0001G00se) identifies the data by system key, device number and string number.
  • Page 48 The data string is terminated with a CRC-16 in hex format (3883) followed by an end character and <CR><LF>. The CRC-16 is described in Sommer CRC-16. Parameter Format Description CRC-16 4-digit hex number Hhhh End character Control characters Carriage return and Line feed <CR><LF> Table 11: End sequence of the Sommer protocol Manual...
  • Page 49 1461| Distance 1539| Temperature 25.25| Status Closing sequence 3883; Table 12: Main values in Sommer protocol Special values Special values are returned as in the following example: EXAMPLE #M0001G03se05 921|06 49.7|07 2|08 11.76|D537; Header with system key 00, device number 01 and string number 03...
  • Page 50 Analysis values Analysis values are returned as in the following example: EXAMPLE #M0001G05se09    33.8|10    43.8|11      34|12   43.23|13   13.51|14    9|15   -28.6|7E66; #M0001G06se16   1|17    2920|18    1565|19    5578|20    1472|21   25.70|22    0.00|0E53; #M0001G05se Header with system key 00, device number 01 and string number 05 for the analysis values 9 to 15 Signal focus 933.8|...

  • Page 51: Standard Protocol

    Error code 22    0.00| Closing sequence 0E53; Table 14: Analysis values in Sommer protocol 11.3.7 Standard protocol The data string of the Standard protocol has the following format: EXAMPLE M_0001     1461    1359     25.38        0 Header The header (M_0001) identifies the data by system key and device number.
  • Page 52 End sequence The data string is terminated with <CR><LF>. Example Standard protocol Main values Main values are returned as in the following example: EXAMPLE M_0001     1461    1359     25.38        0 Header with identifier for measurement values M_0001 Level 1461 Distance 1359 25.38 Temperature Status...
  • Page 53 Analysis values Analysis values are returned as in the following example: EXAMPLE V_0001 39.2     43.8       30    42.85    13.56     9    -25.1        1     3023     1563     5543     1473    25.50     0.00 Header with identifier for analysis values V_0001 Signal focus 39.2 Signal strength 43.8 Half value width Noise ratio 50 42.85...

  • Page 54: Which Commands Are Available

    Description Start char- acter Identifier W USH-9 returns a confirmation on receipt. This com- mand type demands a closing sequence with a valid CRC-16. S USH-9 does not acknowledge the receipt of the command. This command type demands no closing sequence and therefore no CRC-16.
  • Page 55 EXAMPLE Answer: none #S0001$pt| The data string is returned as soon as the USH-9 has processed the command. Request a single measurement value The reading command R together with the index of the requested measurement returns a single measurement value. In the following example the measurement value with index 01 (in this...

  • Page 56: Sommer Crc-16

    11.4.2 What can I do with it? The USH-9 listens to standard SDI-12 commands as listed in the SDI-12 specifications of version 1.3, e.g., to trigger a measurement or retrieve measurement results. Additionally, a set of extended SDI- 12 commands is implemented in all SOMMER sensors for instrument configuration.

  • Page 57: How Do I Configure It

    Wiring of the USH-9 with a data logger via SDI-12 11.4.4 How do I configure it? The USH-9 has SDI-12 communication enabled by default. If the device is connected to a data acquisition system, e.g. data logger, and if multiple SDI-12 devices are connected to the same bus, SDI-12 address may need to be adapted.
  • Page 58 SDI-12 address SDI-12 version prior to the point SDI-12 version after the point Sommer Description of the company (6 characters and 2 blanks) Description of the firmware (5 characters and 2 blanks) 140r90 Firmware version (6 characters and 2 blanks) Device designation (max.
  • Page 59 Configure device The configuration parameters of a SOMMER sensor are read with the command aXRpp! and writ- ten with the command aXWpp=vvv!, with a the sensor address, pp the parameter identifier and vvv the value of the parameter.
  • Page 60 Read and write a parameters of a table Some SOMMER sensors are equipped with multiple transducers and their settings are listed in a table (see example below). A value within such a table is addressed by its row-index (01, 02 …) and column-index (A, B …).

  • Page 61: Modbus

    11.5.2 What can I do with it? Modbus-communication with USH-9 allows reading of measurement values and device information by a Modbus master. Additionally, the basic RS-485 port settings can be written to the USH-9. 11.5.3 How do I wire it? For Modbus communication the USH-9 is wired according to the table below.

  • Page 62: How Do I Configure It

    Follow the instructions below to change the communication of a Sommer-device (in this example a RG-30) to Modbus: 1. Connect the USB to RS-485 converter to the data cable of the Sommer-device and a USB port on your PC. 2. Connect the sensor to a power supply with the specified rating.
  • Page 63 NOTE Modbus cannot trigger measurements! Make sure to use the trigger option suitable for your application! Verify that the connection to the Sommer-device is active and click into the Terminal window. Type ??? to enter the sensor-menu. Manual...
  • Page 64 Navigate to RS485 protocol and select MODBUS, set default… Please note, that the index-let- ters might be different for your Sommer-device! Manual...
  • Page 65 Acknowledge the safety-note. After completion the following message will be displayed: Enter X until you get back to the main menu. The Sommer-device is now restarted and avail- able for Modbus-communication. As the connection-parameters have been changed to Mod- bus, the connection to the sensor is lost. Press Disconnect for completion.

  • Page 66: How Do I Switch Back To Sommer Protocol

    1 stop Baud rate 19200 Flow control Transmitter warm-up time 10 ms Minimum response time 30 ms 11.5.5 How do I switch back to Sommer protocol? Follow the instructions below to change the data output back to Sommer-protocol: Manual...
  • Page 67 Open the Connections (F8) tab and click connection. Enter the Name of the new connection. We recommend to use a meaningful name for later recognition, e.g. Modbus31 (19200) to indicate port 31 and Baud-rate 19200. Select the Type Serial connection and choose the Port your sensor is connected to, set the...
  • Page 68 Click Save connection. In the Communication window select Mode Connection and choose the Connection have created. Then click Connect. Manual...
  • Page 69 Save the parameter file for future use and to document con- figuration changes! Now, two options are available to revert communication back to the Sommer-protocol: If a parameter file is available that has the Sommer-protocol enabled, the file can be loaded by clicking Open parameter...
  • Page 70 If no parameter file is available, the device has to be reset to its default configuration: Click into the Terminal window and type ??? to enter the sensor-menu. Manual...

  • Page 71: Which Commands Are Available

    Acknowledge the safety-note. Enter X until you get back to the main menu. The Sommer-sensor is now restarted and available in its initial configuration. As the connection-parameters have been changed to the default settings, the connection to the sensor is lost. Press Disconnect for completion.
  • Page 72 Register Unit / Variable Bytes Format address value Tes value Hardcoded test value 2.7519… float Level Distance float Main values Temperature °C/F Status Precipitation Signal quality Special val- float Std. deviation Supply voltage Unit according to submenu . Manual...
  • Page 73 Register Unit / Variable Bytes Format address value Signal focus Signal strength Half-value width Noise ratio 50 Noise ratio 85 Echo amp. Var. 1 Analysis float values Var. 2 Var. 3 Dist. max. echo Dist. last echo Distance 0 C Case temperature °C/F Error code...
  • Page 74 Report slave ID The Modbus function 17 (report slave ID, read only) can be used to read basic information of the USH-9. The following example shows the response of function 17 of a RG-30 sensor, which is received in hex-format:...
  • Page 75 "S" Run status (0=inactive; FF=active) Modbus implementation version 27 74 10100 Separator " " Vendor string 53 6F 6D 6D "Sommer " 65 72 20 response Separator " " Device configuration 52 47 2D 33 “RG-30  “ 30 20 20 Separator "...

  • Page 76: Plc Integration

    11.5.7 PLC integration The USH-9 can be integrated into a PLC system as a slave device. It supports the PROFIBUS, PROFINET, EtherCAT and CANopen protocols. This requires an additional serial converter, e.g. Anybus Communicator. Manual...

  • Page 77: Analog Output

    4…20 mA signals. These analog signals can then be used to trigger a certain action, e.g. operate a switch. 12.2 How do I wire it? The analog outputs of the USH-9 can be connected to a data logger according to the figure below. Figure 9 Wiring of analog outputs...

  • Page 78: Output Status

    The outputs are high as long as the signal at the TRIG input is high. always on Analog outputs are permanently active. NOTE The USH-9 delays analog data acquisition by 200 ms. If Output status is set to just during TRIG , the analog output must be read with a delay of min.
  • Page 79 Level limit, 20 mA is applied, otherwise 0 limit status, snow If the USH-9 detects a snow cover 20 mA is applied, otherwise 0 mA. A snow cover settling is detected if Snow settling, strength drop exceeds the specified limit and...

  • Page 80: Simulate Current Output

    12.3.4 Simulate current output With this function the analog outputs can be simulated. A user-defined current value between 4 and 20 mA is applied to the analog output pins, which can be read with a connected data logger or multimeter. By pressing Return/Enter again the simulation stops. Manual...

  • Page 81: Parameter Definitions

    Measurement is triggered by all options mentioned above. allowed B Measurement Interval An internal measurement interval can be set for the USH-9. If selected in menu item Measurement trigger, measurements are performed in the defined interval. However, a measurement is always completed before a new one is initiated.

  • Page 82: C Level And Distance

    C-C Adjust level Function to adjust the level measurement of the USH-9 to the actual level. It first initiates a meas- urement and then requests the actual level. Adjusting the level will alter the parameter Distance to zero level.

  • Page 83: C-D Distance To Zero Level

    C-D Distance to zero level The distance between the sensors lower edge and the ground surface, e.g. lowest point of river bed, ground without snow. Unit Value range -9ˈ999ˈ999…99ˈ999ˈ999 10ˈ000 (default) Application Switch to activate the settings for specific applications as listed in the following table: Option Description snow...

  • Page 84: C-G Moving Filter, Type

    Unit Value range 0…99ˈ999ˈ999 180 (default) C-G Moving filter, type The level/distance values in the buffer can be filtered by one of the following options: Option Description average The mean value of all buffered values iss calculated. elim. neg. To eliminate negative spikes, the mean value is calculated without the 5 lowest buf- spikes fered values.

  • Page 85: D-A Language/Sprache

    Units and decimals Temperature IOUT settings Status limits Advanced settings RS-485 Protocol RS-485 Port D-A Language/Sprache The menu language. Option Description german/deutsch German language english/englisch (default) English language D-B Decimal character The character used as decimal separator in the values of the settings and in serial data strings. Option Description comma...

  • Page 86: D-D-A Level, Unit

    D-D-C Temperature, unit D-D-D Temperature, decimals D-D-A Level, unit The following units of the level/distance can be selected: Option Description mm (default) Millimeter Centimeter Meter Inch Feet Yard D-D-B Level, decimals The number of decimal places for the measured level/distance. Value range 0…6 0 (default)

  • Page 87: D-E Temperature

    D-E Temperature D-E-A Offset D-E-B Adjustment D-E-C Test D-E-A Offset Offset of the USH-9 temperature sensor. An offset might be required if the sensor needs to be matched to an external reference. Unit °C Value range -9ˈ999.99…99ˈ999.99 0 (default) D-E-B  Adjustment Function to adjust the measurement of the USH-9 temperature sensor.

  • Page 88: D-F-A Output Status

    D-F-A Output status The status defines the behavior of the analog outputs. Option Description off (default) Analog outputs are inactive. just during TRIG Analog outputs are only active, if an external signal is present at the TRIG input. The outputs are high as long as the signal at the TRIG input is high. always on Analog outputs are permanently active.

  • Page 89: D-F-Diout1, 4 Ma Value

    Level limit, 20 mA is applied, otherwise 0 limit status, snow If the USH-9 detects a snow cover 20 mA is applied, otherwise 0 mA. A snow cover settling is detected if Snow settling, strength drop exceeds the specified limit and...

  • Page 90: D-F-Giout2, Temperature 4 Ma Value

    Unit Unit of temperature Value range -9ˈ999ˈ999…99ˈ999ˈ999 100 (default) D-F-G IOUT2, temperature 4 mA value Defines the minimum air temperature that corresponds to the 4 mA current output. Unit Unit of temperature Value range -9ˈ999ˈ999…99ˈ999ˈ999 -40 (default) D-F-H IOUT2, status hold time If a limit defined in Status limits is reached, the status of IOUT2 is set to high and 20 mA is applied to...

  • Page 91: D-G-A Level Limit

    Unit Value range 0…99ˈ999ˈ999 50 (default) D-G-D Snowfall, precipitation limit Only available if Application is set to snow; used to report snowfall. The USH-9 returns precipitation as dimensionless value that represents both, precipitation type and intensity. To identify Manual...

  • Page 92: D-G-E Snowfall, Max. Temperature

    Adapts the settings of the level/distance ana- lysis to the conditions of the sensors environment.  Option Description indoor (default) The USH-9 does not apply confirmation shots to determine the level/distance. outdoor The USH-9 applies confirmation shots to determine the level/distance. Manual...

  • Page 93: D-H-B Max. Measurement Distance

    D-H-D Maximum standard deviation At the beginning of each measurement the USH-9 fires an impulse to detect the approximate pos- ition of the snow surface. Subsequent impulses then determine the exact snow depth. This setting specifies the maximum acceptable standard deviation of a complete measurement.

  • Page 94: D-H-F Roc, Max. Without Precip. (./H)

    360 (default) D-H-I Reset behavior The USH-9 keeps certain sensor data in its memory, e.g. the measured data for calculation of the moving average. This setting defines whether the acquired sensor data are deleted upon a sensor reset or not.

  • Page 95: D-H-J Sleep Mode

    ID, except if a USH-9 device is replaced. In such a case it can be practical to change the ID of the new device to the ID of the replaced device to guarantee data consistency.

  • Page 96: D-I-A Device Number

    The type of the serial output protocol. The following options are available: Option Description Sommer (default) Sommer protocol; data values are returned with an index starting at 1 Standard Standard protocol; data values are returned without an index MODBUS Modbus protocol...

  • Page 97: D-I-Eop, Information

    Serial data can be transmitted to a recording device automatically without a request. However, many devices demand a wake-up sequence before they can receive and process data. The USH-9 has the option to send a sync sequence and a prefix before data are transmitted (see...

  • Page 98: D-I-Gop, Prefix Holdback

    D-I-G OP, prefix holdback The hold-back time defines the time delay between the prefix and the data string. Unit Milliseconds Value range 0…5ˈ000 300 (default) D-I-H MODBUS, set default Only available in terminal mode. The Modbus protocol demands a defined setting, including mul- tiple parameters.

  • Page 99: D-J-B Parity, Stop Bits

    19ˈ200 38ˈ400 57ˈ600 115ˈ200 D-J-B Parity, stop bits The following combinations of parity and stop bits can be selected: Option Description no par, 1 stop (default) No parity and 1 stop bit no par, 2 stop No parity and 2 stop bits even par, 1 stop Even parity and 1 stop bit odd par, 1 stop...

  • Page 100: D-J-F Sending Window

    View setup Continuous meas. mode (temp). Set factory default Temp. load factory default Relaunch program E-A Device status Displays information about the sensor and the software version. View setup All parameters of the USH-9 are listed in the terminal window. Manual...

  • Page 101: E-C Continuous Meas. Mode (Temp)

    Continuous meas. mode (temp). Inactive in the Commander menu. This feature can be triggered under the Measurement (F3) with the command Start polling measurements. When active, measurements are performed con- tinuously, ignoring the specified measurement interval. E-D Set factory default All parameters are reset to factory defaults.
  • Page 102 Appendix A Device Errors By configuring the USH-9 to return analysis values any error of the device can be recorded (see also Which data do I get?). The error code is displayed as a decimal number of which the value left of the decimal point refers to fatal errors and the value right of the decimal point to minor errors.
  • Page 103 0x00000400 SYSTEM_SCAN_ERROR Measurement has been canceled. 0x00000800 SYSTEM_SCAN_BLOCKED_NEARFIELD The target surface or another object is within the near field of the USH-9. Sub- sequent measurement may be invalid! 0x00001000 SYSTEM_SCAN_ May only occur during indoor-use. Sub- MIXEDMIRRORCONDIDTIONS sequent ultrasonic shots have identified different peaks.
  • Page 104 Glossary Modbus A serial communications protocol for connecting industrial elec- tronic devices. RS-485 A standard defining the signal transmission serial com- munication systems. SDI-12 Asynchronous serial com- munications protocol for intel- ligent sensors (Serial Digital Interface at 1200 baud) Manual...
  • Page 105 Index Modbus 11, 14, 35, 37, 61-62, 73, 96, 98 RS-485 11, 14, 16, 20, 33, 36, 44-45, 47, 54, 61-62, 73, 81, 95, 97-99, 102 SDI-12 14, 16, 20, 36, 45-46, 56-57, 63, 81, 85, 97 Manual...

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