Consultation with SebaKMT User Manual Noise Level and Frequency Logger Sebalog N3 Mess- und Ortungstechnik Measuring and Locating Technologies Elektrizitätsnetze Power Networks Kommunikationsnetze Communication Networks Rohrleitungsnetze Water Networks Abwassernetze Sewer Systems Leitungsortung Line Locating 1 (08/2011) - ENG 1
Consultation with SebaKMT 2
Consultation with SebaKMT Consultation with SebaKMT The present system manual has been designed as an operating guide and for reference. It is meant to answer your questions and solve your problems in as fast and easy a way as possible. Please start with referring to this manual should any trouble occur. In doing so, make use of the table of contents and read the relevant paragraph with great attention. Furthermore, check all terminals and connections of the instruments involved.
Terms of Warranty Terms of Warranty SebaKMT accept responsibility for a claim under warranty brought forward by a customer for a product sold by SebaKMT under the terms stated below. SebaKMT warrant that at the time of delivery SebaKMT products are free from manufacturing or material defects which might considerably reduce their value or usability. This warranty does not apply to faults in the software supplied.
Contents Contents Consultation with SebaKMT ...........................................................................................3 Terms of Warranty ...........................................................................................................4 Contents ...........................................................................................................................5 1 Technical description ......................................................................................
Contents 5.1.3 Defining a workgroup .......................................................................................32 5.2 Programming the loggers .................................................................................33 5.3 Installing the loggers ........................................................................................35 5.4 5.4.1 5.4.2 Reading out the measured data .......................................................................
Technical description 1 Technical description Function Sebalog N-3 is a system for acoustically monitoring pipe systems. It has Log N-3 noise level loggers and the Commander-3 as its basis. The Commander is used for programming the loggers as well as reading out and analysing the recorded measurements. To monitor a zone, you can attach as many noise level loggers along the pipe as you wish. They then perform regular noise measurements within a certain time window.
Technical description Components The Sebalog N-3 system consists of the following components: Component Use Log N-3 noise loggers measures regularly the volume level and frequency of the noise in the pipe during the programmed measuring window. Commander-3 is the portable device for programming the loggers before measuring, and for reading out and analysing the recorded data after measuring.
Technical description 1.1 Technical data Logger The noise level loggers in the Sebalog N-3 system are specified by the following technical parameters: Parameter Value Wireless interface (bidirectional) • Frequency • Transmitting power • Range 868 MHz (915 MHz optional) 10 mW Approx. 80 m (depends on the surroundings) Memory capacity Max. 100 measuring days Audio recording Possible Power supply Lithium battery Battery life Max.
Technical description Reader-3 The Reader-3 reading device in the Sebalog N-3 system is specified by the following technical parameters: Parameter Value Display LCD display (b/w), 128 x 32 pixels Wireless interface (bidirectional) • Frequency • Transmitting power • Range 868 MHz (915 MHz optional) 10 mW Max. 100 m (depends greatly on the surroundings) USB port USB 2.0 for connecting to a PC via docking station Memory capacity 1 GB (SD memory card) Power supply Li-ion rechargeable battery (7.
Technical description GSM box-3 The GSM box in the Sebalog N-3 system is specified by the following technical parameters: Parameter Value Wireless interface (bidirectional) • Frequency • Transmitting power • Range 868 MHz (915 MHz optional) 10 mW Max. 400 m (depends on the surroundings) Memory capacity 2 GB (corresponds to the data from approx.
Technical description 1.2 Scope of delivery and accessories The Sebalog N-3 system is delivered with the following as standard: Logger set A logger set consists of the following components: Designation Description Item No.
Important and common terms 2 Important and common terms User mode The Commander-3 can be operated in two different user modes (see page 23): • Easy mode • Professional mode You can switch between these modes in system settings menu (see page 25).
Important and common terms Workgroup The Commander can only ever interact with a single registered logger group. This group is called the “workgroup”. It is not possible to program or read loggers from another group. Measuring window The “measuring window” is the time during which a logger is programmed to carry out measurements, e.g. from 2 a.m. until 4 a.m. in the morning. A measuring window could also be referred to as a “measuring day”.
The loggers 3 The loggers 3.1 Function The noise loggers are installed along a section of pipe directly on the pipe, or directly on fittings on the pipe. Within the configured measuring window, they perform regular noise measurements, each 3 seconds in length. The volume level and frequency of each measurement are saved in the logger.
The loggers 3.2 Design Introduction All noise loggers have a highly sensitive microphone with a large dynamic range, a data memory and a lithium battery inside. The standard loggers also have an internal radio antenna. Standard version The loggers have the following external characteristics: “Head” of the logger “Foot” of the logger Element Description Hole (M5 thread) For fitting the supplied ring, which can be used for carrying the logger and pulling it out of the shaft.
The loggers 3.3 Switching on and off The noise loggers have an internal tilt switch and are switched on and off simply by turning them over. Loggers standing on their foot are switched on. Loggers standing on their head for longer than 3 minutes are switched off. Each time a logger is switched on, its configuration data is reset to the default values. The time internally is also lost. Therefore, whenever the logger is switched back on, it must be reprogrammed (see page 50). 3.
The Commander 4 The Commander 4.1 Function The Sebalog Commander 3 is the mobile programming and reading device for noise loggers in the Sebalog N-3 series. The Commander is used to program the noise loggers before measuring. After measuring, the recorded data in the loggers can be queried with the Commander. Both current and older data can be displayed on the device’s screen and analysed in greater detail. Furthermore, a real time measurement can be performed (see page 58).
The Commander 4.
The Commander 4.3 Design of the user interface All the menu levels on the Commander’s user interface consist of a large display area and an infobar on the bottom edge of the screen. The content and structure of the display area change depending on the system status. Display area Infobar Help text ++ Help text ++ Help text Main menu bar (Professional mode only) Main menu In Easy Mode, the main menu can be selected in the display area of the start screen.
The Commander 4.4 Basics of operation Navigation within the The Commander is very simple to operate and intuitive in principle. Navigation within the menus menus is done exclusively with the aid of the selector knob as follows: Turning = select Pressing = open/confirm (ENTER function) The selected element appears on a black background: Not selected Selected to exit each menu. This immediately returns you Exiting the menu In Easy Mode, use the ESC button to the start screen.
The Commander Virtual keyboard To input comments or similar, a virtual keyboard appears on the screen, which is also operated with the selector knob. … deletes last character … switches between upper- and lower-case … inserts space … confirms and completes input Sorting loggers Various menus list the individual loggers of a logger group. This appears in a table-like form. You are able to re-sort these loggers by the criteria “Comment”, “Time of data read-out” or “ESA value”.
The Commander 4.5 User mode Introduction The Commander-3 can be operated in two different user modes. Easy mode Professional mode In Easy mode all the main functions of the device are available. They can perform most day-to-day work quickly and simply from programming a logger group to analysing measured data on the Commander. The individual applications are structured very clearly; the user is partly guided step-by-step from one action to the next.
The Commander 4.6 Making a connection 4.6.1 Connection between the Commander and logger Short range radio is used for communication between the Commander and loggers. The Commander has an integrated radio module. After the antenna is connected (standard or vehicle antenna), the device is ready for wireless operation. The loggers must be switched on and wirelessly available (see page 52). The radio range of a logger is affected by the conditions where it is used.
The Commander 4.7 Switching on the display lighting The Commander’s screen has a backlight. It is activated by using the selector knob or briefly pressing the I/O button . The lighting then remains on for a certain time period. The length of this period (a maximum of 4 minutes) can be adjusted in the system settings (see page 26). 4.8 System settings You can use the System settings menu to customise various device settings to the needs of the user.
The Commander 4.8.1 Basic settings The following basic settings can be made in both Professional mode and Easy mode: Line Description User mode Select a user mode for the device (see page 26). Language Select a language for the user interface. If you cannot read the preset language, you can go to the language selection - starting from the main menu via the following symbols: Time and date settings In the Timezone line, select the timezone for where you are.
The Commander 4.8.2 Extended settings in Professional mode The following extended settings are only available in Professional mode: Line Description Logger list visibility Select table columns to be shown/hidden. Various menu levels list the loggers of a group in a table on the screen. The columns contain information about the loggers, such as the logger ID and logger comment. To make the table clearer, you can specify which columns are actually shown.
The Commander 4.8.3 System info When the Commander is operated in Professional mode, the System settings menu has the following information on the device and the firmware currently in use: 4.8.
The Commander 4.10 Updating the firmware Visit regularly the Downloads section at www.sebakmt.com for information about new versions of firmware. You can install any updated versions of the firmware on the Commander if they are available. The current version of the Commander firmware installed can be found in the system settings (see page 28).
The Commander 4.11 Memory The Commander has a 2 GB internal memory. This is sufficient to manage the data of up to 1,000 logger groups, each with 1,000 loggers. You can query the available memory space at any time in the system settings (see page 25). 4.12 Power supply Internal supply The Commander is fitted with an internal Li-ion rechargeable battery. This can power the device for approximately 20 hours.
Working in Easy mode 5 Working in Easy mode 5.1 Starting up the Commander 5.1.1 Switching on the Commander Switch on the Commander by pressing the I/O button . The Easy mode main menu appears on the screen: Name of the workgroup System date Changing the In Easy mode, the symbol is continuously shown at the bottom of the screen. If user mode you do not see this symbol, the Commander is in Professional mode. To switch to Easy mode, open the system settings menu.
Working in Easy mode 5.1.3 Defining a workgroup More than one group of loggers can be registered in the Commander. However, the Commander can only work with one of these groups at a time. This group is called the “workgroup”. Specify the workgroup for the impending measurement session. Please proceed as follows: Step Description 1 In the main menu, select the System settings 2 In the next menu, select the Change group button. button. Result: A list with all the registered logger groups opens.
Working in Easy mode 5.2 Programming the loggers Introduction The loggers in the workgroup must be reprogrammed before each session. This means that the Commander sends basic data for the session wirelessly to the loggers (e.g. the measuring window). Procedure To program the workgroup proceed as follows: Step 1 Description In the main menu, select the Prepare loggers button. Result: The workgroup is shown.
Working in Easy mode Step 4 Description Switch on all the loggers in the group, i.e. place them “on their foot”. Select the OK button to confirm. Result: The next display provides information about the data used to program the loggers. (It is not possible to change this configuration data in Easy mode). 5 Select the Program button. Result: The next display opens and the Commander automatically begins transferring data to the loggers.
Working in Easy mode 5.3 Installing the loggers Basics Install the loggers of the workgroup in succession along the stretch of pipe. It is best to fit them directly on the pipe. However, you can also attach the loggers to valve rods or hydrants, for example, or any other position along the pipeline that is easily accessible. There must be the best possible contact between the logger foot or the mounted adapter (see below) and the pipe.
Working in Easy mode Installation examples The following pictures show a few methods for installing N-3 noise loggers: Logger on the valve rod of an underground hydrant Logger on an underground hydrant Logger with an angle adapter on the valve rod Logger with an angle adapter on the hydrant claw Logger with an angle adapter horizontally on the valve rod 36
Working in Easy mode 5.4 Reading out the measured data After the loggers have been installed on location for at least one measuring day, the recorded measured data can be read out with the Commander. The exact same group mode (“Lift&Shift”/“Patrol”/”Network”) for which the workgroup was programmed is used. Groups with an “L” before the name can only be read using “Lift & Shift”, i.e. all the loggers in the group are collected and then read together.
Working in Easy mode 5.4.1 Reading out a “Lift&Shift” group To read out the measured data in the loggers, proceed as follows: Step Description 1 Collect up all the loggers of the group and place them next to the Commander. Avoid placing the loggers on their head! The stored data would not be lost if the loggers were switched off, but it would no longer be indicated if a logger is in leak status or not (see page 14). 2 In the main menu of the Commander, select the Readout loggers button.
Working in Easy mode 5.4.2 Reading out a “Patrol” group To read out the measured data in the loggers, proceed as follows: Step Description 1 In the main menu of the Commander, select the Patrol Loggers button. Result: The Commander is ready to receive the measured data from the individual loggers. The antenna symbol in the bottom left of the display flashes. 2 Move into the wireless range of each logger one after the other.
Working in Easy mode Step Description The detected logger switches from the right-hand to the left-hand window on the Commander screen. The coloured background of the read data reflects the probability of a leak. No colour … Leak probability low, leak threshold was not exceeded Grey … Leak probability not available, logger in config.
Working in Easy mode 5.5 Evaluating the measured data You can use the Commander to view the measured data read out from a logger and to analyse it in greater detail. 5.5.1 Calling up the measured values To call up the measured data of a logger, proceed as follows: Step 1 Description In the main menu, select the Display logger data button. Result: The loggers in the workgroup are listed in the next view.
Working in Easy mode 5.5.2 Displaying the measured values View The measured data from the loggers are shown as a bar diagram on the screen. 1 4 2 3 4 Element Description 1 Identification number and comment of the displayed logger 2 Diagram Each bar represents a single noise recording. X-axis ... course of measurement over time Y-axis ... noise level in dB The colour of the bar shows the approximate frequency of the noise.
Working in Easy mode Functions There are the following functions for analyzing the displayed data: Button Description Scroll You can use this function to view in the diagram the measurement results of the other loggers in the group. To do so, apply the button and turn the selector knob to select a logger. Apply the button again to confirm your selection. Move Cursor You can use this function to move the vertical green line in the diagram from one bar to the next.
Working in Professional mode 6 Working in Professional mode 6.1 Starting up the Commander 6.1.1 Switching on the Commander Switching on Use the I/O button to switch on the Commander. The Professional mode start image appears on the screen: Workgroup Firmware version, System date, Identification number of the Commander Main menu bar Changing the If the symbol is shown at the bottom in the middle of the screen, the user mode Commander is not in Professional mode but Easy mode instead.
Working in Professional mode 6.2 Managing the loggers All loggers to be used for a measurement must be registered in the Commander beforehand. Only registered loggers can be programmed and read. Registration is performed either by manually inputting the logger ID or by automatic wireless detection. The registered loggers are combined in groups. 6.2.1 Managing logger groups in the Commander Introduction All loggers registered in the Commander must be assigned to a group.
Working in Professional mode Renaming a group You can rename an existing logger group. First select the particular group in the list and then select the Rename button. In the following screen views, enter a group mode (see page 13) and the new name of the group. The group then appears with the new name in the group list. Copying a group You can copy an existing logger group, with all its loggers, within the list and allocate a new name and new group mode to this copy.
Working in Professional mode 6.2.2 Managing the loggers in the Commander Select the symbol in the main menu, and the Logger Management button in the next view, to go to the menu for managing loggers. The loggers of the workgroup (see page 45) are listed. If the incorrect group is displayed, you can use the pull-down menu at the top edge of the screen to change the workgroup.
Working in Professional mode Registering loggers A logger can be registered manually by entering its ID. Proceed as follows: manually Step Description 1 Apply the Add logger button. 2 Type in the logger’s six-digit ID using the displayed keyboard (see page 14). Confirm the input with the ENTER button. Result: The registered logger is now shown in the list.
Working in Professional mode Deleting loggers You can delete a logger from the displayed group. Proceed as follows: Step Description 1 Select the logger in the list. 2 Apply the Delete button and answer the confirmation query with Yes. Result: The logger is no longer contained in the list. If the logger is not contained in any other existing group, it is simultaneously deregistered from the Commander. The measured data of the logger is deleted within the group.
Working in Professional mode 6.3 Programming the loggers Introduction Each logger must be configured before each measuring session. They are assigned with all the relevant parameters before the impending measurement. Even loggers that have already been programmed and installed can usually be reprogrammed. However, to save power, all loggers in group mode “Patrol” can only receive the Commander’s signal every 10 seconds, even in the time when they are ready for wireless operation.
Working in Professional mode Measuring parameters The following parameters must be stated in order to define the measuring window: Parameter Description Measurement Beginning and end of the daily measuring window. (from … to) Select from: 0:00 to 24:00 hours Default: 2 a.m. to 4 a.m. Explanation: The logger performs measurements and saves the measurement values within the stated window. Interference from background noise (traffic, water use, etc.) should be at a minimum at this time.
Working in Professional mode Radio parameters Continuous wireless availability and frequent wireless exchange of data have a detrimental effect on the lifetime of a logger’s battery. To spare the battery, the periods of wireless availability and activity can be restricted. To do this, the following parameters must be entered: Parameter Description Radio signal (from … to) Beginning and end of the daily transmission window.
Working in Professional mode Continuing Proceed as follows to continue the programming process: programming Step Description 1 Enter the data in turn for the group or the single logger. 2 Apply the Program button in order to finish the programming. Result: The configuration data is transferred from the Commander to the group. A new view opens on the screen with two windows: The left-hand window shows the loggers in the group that have been successfully programmed.
Working in Professional mode 6.5 Reading out the measured data After a group has been installed for at least one measuring day, the recorded data can be called up with the Commander. The same group mode for which the workgroup was configured is used (see page 13). Furthermore, you can always read just a single logger instead of a group. 6.5.1 Quick query of the workgroup The button on the very left of the main menu bar is always used as a quick-start button for reading the workgroup.
Working in Professional mode 6.5.2 Standard query of a single logger If you only wish to read a single logger with the commander, proceed as follows: Step 1 2 Description Select the symbol in the main menu bar. In the next menu, select the Read measurement data button. Result: The loggers in the workgroup are listed in the next view. 3 If necessary, call up another logger group using the drop-down list at the very top of the screen. 4 Select the concerning logger in the list.
Working in Professional mode 6.6 Evaluating the measured data 6.6.1 Calling up the measured values Calling up recent To view the measured values from a logger on the Commander’s screen, select the measured data symbol in the main menu and then the Display logger data button. The loggers in the workgroup are listed in the next view: If necessary, you can call up a different group using the drop-down list at the very top of the screen.
Working in Professional mode 6.6.2 Displaying the measured values Introduction In Professional mode the measured data from the loggers is shown as a bar diagram on the screen just as in Easy mode (see page 42). But, additionally the Professional mode provides the opportunity to compare the measured data of two loggers. Comparing After the measured data of a logger has been called up, this data can be compared to measured data the data of another logger in the group. To do so, select the Compare button.
Additional measuring functions 7 Additional measuring functions 7.1 Real time measurement Introduction The “Real time measurement” function allows you to follow, in real time, the current noise level and the frequency in a pipe directly on location and without additional measuring devices. A logger measures continuously and immediately transfers the data to the Commander. Purpose The real time measurement can be useful in many situations.
Additional measuring functions Display of The course of the real time measurement is shown on the Commander’s screen with a measured data running bar diagram: 1 2 4 5 3 6 Element Description 1 Identification number and comment of the observed logger 2 Diagram Each bar represents a single noise recording. X-axis ... course of measurement over time Y-axis ... noise level in dB The colour of the bar represents the frequency of the noise.
Additional measuring functions 7.2 Audio recordings Loggers in the Sebalog N-3 series are able to save recorded noises as audio files and to send them to the reading device. This means the user is no longer reliant on the measurement values alone (level/frequency/ESA value) when evaluating a noise. You can actually listen to the suspected leak. Firstly, the loggers automatically save the quietest noise in the measuring period as an audio file.
Additional measuring functions 7.2.2 Playing back the audio data Introduction After an audio file is sent from a logger to the Commander, it can be played back with the Commander and listed to over headphones. First, connect the supplied headphones to the Commander via the 5-pin headphone socket . White markings on the plug and socket show the correct position of the plug. You must feel the plug engage.
Additional measuring functions 7.2.3 Displaying the frequency spectrum of the leak noise (in Professional mode only) Introduction In Professional mode, you can view the frequency spectrum of the saved leak noise for an even more in-depth analysis. Purpose Sometimes the assumed leak noise stems from a known source of interference (e.g. 50 Hz/100 Hz mains voltage or a pump in operation).
Additional measuring functions 7.2.4 Recording a noise directly (in Professional mode only) Introduction The “Direct recording” function of a Log N-3 logger enables you to listen in on the current noise in a pipe without using additional equipment (sensor rod microphone or similar). If “Direct recording” is performed with a logger already installed, you do not even have to open the shaft to listen to the pipe.
Professional 8 Increasing the wireless range of the loggers with repeaters when patrolling (in mode only) Increasing the wireless range of the loggers with repeaters when patrolling (in Professional mode only) Introduction The actual wireless range of a noise logger depends on the conditions at the place of use. If a logger is installed in a shaft, its radio signal sometimes does not reach far enough above the surface to be received properly during “patrolling”. In such cases a repeater can be used.
Increasing the wireless range of the loggers with repeaters when patrolling (in Professional mode only) 8.
Professional 8.2 Increasing the wireless range of the loggers with repeaters when patrolling (in mode only) Installing the wireless extension Before the wireless extension via repeaters can be set up, the logger concerned must already be programmed and installed at its place of use. Proceed on location as follows: Step 1 Description symbol in the main menu and the Select the Connect Repeater to Logger button in the next view.
Increasing the wireless range of the loggers with repeaters when patrolling (in Professional mode only) Step 5 Description Apply the Start button. The logger and repeater are connected. The vertical blue line in the bar indicator shows the strength currently of the wireless connection between the logger and repeater. 6 • Green area • Yellow area good connection poor connection Look for a suitable place around the installed logger for fitting the repeater.
