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SePem 155 Logger ® Bar with loop Antenna connector Activation switch Magnet Antenna Fig. 1: SePem 155 Logger without antenna (top) and with antenna (bottom)
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SePem 01 Master ® Connector Supporting bracket Buzzer USB port ON/OFF key Power supply port Signal light Antenna Display Function keys F1, F2, F3 Jog dial Fig. 2: SePem 01 Master without antenna (top) and withantenna (bottom)
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Information about this document The warnings and notes in this document mean the following: CAUTION! Risk of personal injury. Could result in injury or health risk. NOTICE! Risk of damage to property. Note: Tips and important information. Enumerated lists (numbers, letters) are used for: ●...
Contents Page Introduction ................1 General ..................2 Warranty ..................2 Intended use ................2 General safety information ............3 Notes on the radio operator’s license ........3 SePem system .................4 System components ..............4 Mobile operation as an alternative to stationary operation ..4 Operating principle ..............4 3.3.1 Monitoring procedure (overview) ..........4 3.3.2...
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Contents Page Operation ................17 5.4.1 Keys and jog dial ..............17 5.4.2 Standard functions ...............18 5.4.3 Warning prompts ..............18 5.4.4 Enter text ................19 5.4.5 Scrolling in charts ..............21 Firmware menus and Master - Logger interaction ....22 5.5.1 Main menu (overview) ............22 5.5.2 Patrol ..................23 5.5.2.1...
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Contents Page Display symbols (Master) ............62 Terminology and general abbreviations ........64 7.7 Abbreviations in the firmware ..........66 Accessories ................67 FCC/IC Compliance Statements ..........68 7.10 Advice on disposal ..............68 Index ..................69...
Introduction The SePem system is used for the early detection of leaks in water pipe networks. The SePem 155 Logger is especially designed for stationary operation, i.e. for continuously monitoring water pipe networks at fixed measurement locations over long periods of time (sev- eral years). The SePem 01 Master programming and read-out unit allows the system to be operated without the need for a computer.
● Changes or modifications to this product may only be carried out with the approval of Hermann Sewerin GmbH. ● Use only Hermann Sewerin GmbH accessories for the product. Hermann Sewerin GmbH shall not be liable for damages result- ing from the non-observance of this information. The warranty conditions of the General Terms and Conditions (AGB) of Her- mann Sewerin GmbH are not affected by this information.
(e.g. hard drives, credit cards) and medical devices (e.g. pacemakers, insulin pumps). ● The batteries in the Logger may only be replaced by SEWERIN Service or by other suitably trained personnel. ● Ensure that no dirt or moisture gets into the connections on all the devices.
SePem system System components The SePem system (SePem for short) comprises: ● SePem 155 Logger, for short: Logger (see Section 4) for recording measurement data ● SePem 01 Master, for short: Master (see Section 5) for programming Loggers and collecting and evaluating mea- suring results A single Master can be used to manage up to 400 Loggers.
3. Read out the measuring results using the Master (see Sec- tion 5.5.2) The Logger will transmit the measuring results at regular in- tervals within a prescribed period of time. The period of time is referred to as the radio time frame and is specified during programming. The operator must transport the Master to within the transmis- sion range of the Logger to read out the data.
3.3.3 Principles of leak detection Various techniques are used for leak detection. Note: Leak alerts will not be issued if there is background noise (fre- quency 60 Hz or 120 Hz). Please refer also to the information on interpreting measuring results and leak alerts in Section 5.5.2.3 - Section 5.5.2.5.
SePem 155 Logger Function and setup SePem 155 is a noise logger. It can acquire and save measure- ment data from water pipe networks. Data is exchanged with the Master by radio. For an overview including the part names of the Logger, see the front cover flap (fig. 1).
Preparing the Logger for use The preparatory work required for each Logger includes: ● Attaching the antenna to the Logger ● Pairing the radio frequencies ● Programming the Logger for the first time 4.3.1 Screwing on the antenna The Logger and antenna are connected using a TNC connector. The antenna can be screwed directly into the threaded antenna connector.
Note: The Logger will remain ready to receive information for one min- ute after activation. It can then be reactivated if necessary. Fig. 3: Activating the Logger: Relief of activation switch on housing (left) Direction of movement of magnet (right) 4.3.3 Pairing the radio frequencies To allow the Master and Logger to communicate successfully...
5. Wait until the Master has recognized the Logger and as- signed it the new frequency. The Logger will then be listed under SERIAL. − The Logger will remain ready to receive information for one minute after activation. If the scan is not successfully completed within this time, you will need to reactivate the Logger again.
Installing the Logger at the measurement location 4.4.1 Suitable installation locations The Logger can be mounted on: ● Pipes ● Fittings (slide gates, underground hydrants, above-ground hydrants) Note: Only attach the Logger to above-ground hydrants if it is possible to protect the device against theft and vandalism. The units can be installed in water pipe networks constructed from both metal and plastic piping.
4.4.3 Installing the Logger The Logger is fixed into position at the installation location using the magnet. Note: Please see Section 4.4.1 and Section 4.4.2! NOTICE! Damage possible due to careless positioning The Logger contains sensitive parts. ● Always position the Logger on the attachment point with care. Installation instructions ●...
SePem 01 Master Function and setup The Master is the programming device and reader for the Log- gers. The following tasks can be performed using the Master: ● Program the Loggers ● Read out measuring results and device data from the Loggers ●...
ten by the newest data. The unit will generate a warning to alert the user that memory is low. Using the Master in vehicles The most efficient way to program the Loggers and read out data is to drive slowly through the transmission range of the loggers in a vehicle with the Master. This is generally preferable to a foot patrol.
5.3.2 Special features of rechargeable batteries CAUTION! Risk of burning Unsuitable rechargeable batteries can overheat in the event of a short-circuit. ● Only use rechargeable batteries listed by Underwriters Laboratories (UL). Rechargeable batteries must be removed from the device for recharging and charged in an external charger.
5.3.4 External power supply External power supply options: Power source Accessories Use power supply required connection on... Mains socket M4 AC/DC adapter Master TG8 docking station TG8 docking station M4 AC/DC adapter Vehicle battery TG8 docking station TG8 docking station M4 vehicle cable The M4 vehicle cable is available in various models.
Operation 5.4.1 Keys and jog dial The ON/OFF key is the only control on the device that does not change its function. When switched on, the device is operated using the jog dial and function keys to navigate the display. Control Action Function...
5.4.2 Standard functions The following functions are frequently required to operate the Master: Standard functions Back F3 Return to previous program level Accept F2 Save a modified value Delete F2 Delete an individual value or a list Delete list 5.4.3 Warning prompts Warning prompts may be displayed in connection with certain functions (e.g.
5.4.4 Enter text You can save comments and the location for each Logger in the LOGGER DATABASE. The entry can be up to 20 characters long. The window for entering text is called EDIT TEXT. EDIT TEXT 10:21 100 02 00457 Text field BACK NEXT...
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Function Effect in text field BACK Move cursor back one character NEXT Move cursor forward one character Delete the character at the current cursor position Insert a character in front of the current cursor position. Characters and functions in the first line must always be con- firmed after selection by pressing the jog dial. Function key assignment Function keys Line...
5.4.5 Scrolling in charts The Master can display data in charts. The corresponding win- dows are called GRAPHICS and HIST. GRAPH. The charts always show all the data in one image. If there is a large amount of data, the values will be compressed in the chart. If you want to study individual values in more detail, you can view the chart in scroll mode.
Firmware menus and Master - Logger interaction 5.5.1 Main menu (overview) The main menu is the central starting point for all tasks performed using the Master. It is the highest program level. MAIN MENU 10:21 Patrol Logger communication Logger management Master settings Master info Fig.
5.5.2 Patrol Data saved in the Logger is read out (collected) by the Master during a patrol. The purpose of a patrol is to ● keep track of the locations of leaks detected and ● collect measuring results for viewing and evaluation at a later point in time away from the location.
5.5.2.1 Requirements for a successful patrol ● Master is switched on, PATROL window is open ● The operator and the Master are within the radio transmission range of the Logger ● The radio time frame of the Logger is open, i.e. the Logger is ready to send Note: The Master can only receive data when the PATROL window is...
5.5.2.2 Patrol procedure (overview) 1. Operator ● Transports Master to within the radio transmission range of the Logger 2. Logger ● Ready-to-send (radio time frame open) 3. Master ● Receives the most recently stored measuring results - a new line appears in the PATROL window ●...
5.5.2.3 Analysis of measuring result readings The measuring results read out during the patrol (see Sec- tion 5.5.2.2, procedure to step 3) must always be analyzed and critically assessed. The following values give information about the quality of the measurement and any leaks: Value Indication of Description...
Note Description of alert Leak alert Column ● Numeric value inverted Signal ● Visual signal: Lit for long light period Buzzer ● Audible signal: Long signal Remaining Logger Column ● Field is black battery power ● No segments can be seen less than 10% (battery needs changing)
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Extended data set: Values in the patrol General Battery capacity, device number, next device service, firmware version, errors (optional) Radio times Days, start, duration, patrol style, economy mode Measurement Date, time, duration, interval, type, alarm times level, status Measuring Minimum level, characterizing frequency, results width, measurement temperature, sensor Last minimum Displays the last seven values (maximum)
5.5.2.5 Graphics The graphics component of the extended data set (see Sec- tion 5.5.2.4) is particularly important for the thorough analysis of a measurement. The shape of the curve can give an indication that a leak may be present. It is possible to view the graphics either during a patrol or at a later point in time.
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Analysis of the graphics The x-axis corresponds to time, the y-axis is the measurement value scale (noise level). A noise level that is continuously much higher than zero may indicate the presence of a leak (fig. 8). GRAPHICS 10:21 100 02 00821 12 Jan. 2010 02:00:00 0d 01h 00min 3000 2500 2000...
5.5.3 Logger communication The LOGGER COMMUNICATION is used to control the exchange of data between the Master and the Logger. It uses different methods for data transmission to a single Logger and transmis- sion to multiple Loggers (see Section 5.5.3.3). Fig.
For monitoring purposes, it is also possible to subsequently read out Logger data from a Logger using the Master. LOGGER DATA General Battery capacity, device number, next device service, firmware version Radio times Days, time, duration, patrol style, economy mode Measurement Start of measurement ("Start in" or date), time, times duration, interval, type, alarm level, status Measuring results features...
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● If values are chosen that are invalid or are not permitted then these cannot be transmitted. They will be automatically cor- rected. Measurement times The settings under Meas. times determine how and when a Logger records measurement data. LOGGER CONFIGURATION Measurement times Start in (days)
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Radio times The settings under Radio times determine when and for how long a Logger is ready to exchange data with the Master (Radio time frame). The length of time between two transmission pulses is specified under Patrol style. LOGGER CONFIGURATION Radio times Days SU MO TU WE TH FR SA ●...
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Miscellaneous The settings available under Miscellaneous determine the way in which the Master operates. It is particularly important to set the correct Alarm level. LOGGER CONFIGURATION Miscellaneous Alarm MOBILE (mobile operation) level ● Requires a value to be set between 30 and 3000 (in increments of 30).
5.5.3.2 Single Logger Note: A radio connection must always be established between the Mas- ter and Logger when working with single Loggers. The Master will switch to receive mode as soon as Single Logger is selected from the menu (and confirmed). The LOG- GER SELECTION options will appear. A selection window will be displayed (initially blank).
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Note: Only select Loggers to which there is a radio connection with a good signal quality. These are Loggers for which the bar in the Signal column fills at least half of the field. ● The measurement and Logger data for the chosen Logger will be read out. The SELECTED LOGGER window will then appear. SELECTED LOGGER 10:21 Data / Results...
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Logger has saved corresponding measurements. Any Logger errors detected during read-out will be shown under General in the last line. The error number given will be important for any contact with SEWERIN Service. Online measurement When online measurement is active, the measurement data re- corded by the Logger can be viewed directly on the Master in real time.
5.5.3.3 Transferring data to the Loggers To transfer the measurement time and radio time settings to the Loggers, always use the F1 Transfer option in the Logger configuration. It is imperative to note the following differences between transmission to multiple Loggers and transmission to a single Logger: Data transmission to Multiple Loggers Radio...
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Data transmission to a single Logger Radio ● Already established connection ● Starts as soon as F1 Transfer is Start data transmission pressed Destination for ● Only the selected Logger transmitted data End data ● Radio connection will be terminated transmission automatically ●...
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2/15 LOGGER PROGRAMMED 10:21 SERIAL 100 02 01370 100 02 01371 Unprogrammed Delete list Back Fig. 13: Loggers programmed A list of all Loggers that have been programmed with the current settings since switching on the Master will be displayed. The Loggers are listed using the specified Logger ID (e.g.
5.5.3.4 Standard settings The Master has a set of standard settings for the LOGGER CON- FIGURATION. This set of values has been optimized to provide long battery life for the Loggers. Pressing the F2 Standard key will cause all values to be over- written with the standard settings.
5.5.3.5 Frequency pairing Note: Observe the information about the radio operator’s licence in Section 2.4. Selecting Frequency pairing from the menu opens a win- dow of the same name (fig. 14) in which the radio frequencies of the Master and Loggers are paired. The frequency pair used is shown on the top right (2nd row). Fig.
5.5.4 Logger management Logger management is used for the following: ● Displaying all stored measuring results and Logger data ● Editing Logger data LOGGER MANAGEMENT 10:21 Logger database Patrol lists Back Fig. 15: Logger management 5.5.4.1 Logger database The LOGGER DATABASE displays a list of all Loggers stored. A Logger will be identified and saved by the Master as soon as there is a radio connection between the two.
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Note: All associated Logger data will be also deleted when a Logger is deleted from the Logger database. History A history is saved for each Logger. This contains the mea- suring results for all measurement readings (time of reading, minimum noise level, width, characterizing frequency). If the ex- tended data set was read out too, then this will also be saved (indicated by an 'x' in the last column; see also Section 5.5.2.4, second table).
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GRAPHICS 10:21 100 02 00821 12 Jan. 2010 02:00:00 0d 01h 00min 3000 2500 2000 1500 1000 Last Min. Scroll Back Fig. 18: Graphics in a saved patrol Pressing F1 Hist. graph (in the History window) will cre- ate a chart plotting the minimum noise level of all the saved measurements.
5.5.4.2 Patrol lists During a PATROL, all measuring results received will be saved automatically to the Patrol lists (see Section 5.5.2.2). Whenever ● the Delete option is selected in the PATROL window ● the Master is switched off the existing data will be saved. The Patrol lists provide the following information: ●...
Once a patrol has been selected, a list containing the corre- sponding measurements will appear (SAVED PATROL). SAVED PATROL 10:21 15 Jan. 2010 11:08:01 SERIAL 100 02 01286 100 03 03534 100 02 00821 100 02 01119 2697 100 02 01370 100 03 01893 1005 100 02 01122...
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Illumi- OFF > 10 s > 30 s > 1 min > 5 min > ON nation ● Illumination of display ● ON: Light permanently on ● Note: Long on-times will reduce the lifetime of the batteries. Buzzer ON > OFF ●...
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Frequen- YES > NO ● The Characterizing frequency of Hide measurement column is set to hidden in the factory settings ● Column can be displayed ● Refers to the PATROL, SAVED PATROL and HISTORY WINDOWS ● YES: Column is hidden License …...
5.5.6 Master info The Master info is solely for information purposes. It is not pos- sible to modify any settings. MASTER INFO ● Serial number ● Date and time as set in Master settings ● Remaining battery capacity ● Memory used ●...
Troubleshooting Problems with the Logger Problem / symptom Solution Logger cannot be ● Flat battery > send Logger to activated SEWERIN Service Problems with the Master Problem / symptom Solution No radio connection ● Check radio connection (error message e.g.
Problems with the Master - Logger radio connection The most common reason for problems with exchanging data be- tween the Master and Logger is the quality of the radio connec- tion. It is rare for problems to be caused by a device malfunction. Problem / symptom Solution Logger is activated, but...
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Either remove the other transmitting device (e.g. correlator) or select a new installation location (e.g. away from fixed ra- dio mast). If the interference is not due to one of the causes mentioned above then it will be necessary to establish if the interference to the radio signal is permanent or intermittent. To do this, test the radio connection with at least two Loggers in succession.
6.3.2 Improving the radio connection There are a number of ways to improve the radio connection between the Logger and Master: ● Align the Logger and Master antennas in parallel ● Replace metal valve box covers with plastic valve box covers ●...
Measurement Sampling rate adjustable 1 s – 1 h Data transmission Transmission frequency 461.0375 – 469.5625 MHz Communication bi-directional radio data Power 20 mW Additional data Attachment option magnetic at measuring point Shipping instructions UN 3091: lithium metal batteries contained in equipment or lithium metal batteries packed with equipment net weight of battery/batteries: 0.043 kg...
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Operating conditions Operating temperature -15 °C – +45 °C (5 °F – 113 °F) (depends on battery type) Storage temperature -30 °C – +80 °C (22 °F – 176 °F) (without disposable batteries) Humidity 95%, non-condensing Protection rating IP54 Permitted operating outdoors environments in vehicle...
Measurement types (overview) Measurement Features type Single ● Records a single measurement, with a measurement specified duration, at a specified point in time Abbr.: ● Any previous measurement data stored in Single the Logger will be completely deleted before recording starts. Permanent ● Records an ongoing measurement measurement ●...
Display symbols (Master) Notes Wait PIN code protected area Error Warning Question Information Measurement Number of measurements Graphics Maximum noise level Minimum noise level Width Characterizing frequency of measurement Current noise level (online measurement) Interval Scale for time axis (graphics) Evaluation 62 │ 7 Appendix...
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General information Date, time (time of day, measurement time) Duration Radio time Read out time Logger SERIAL Remaining Logger battery capacity Remaining Master battery capacity Memory for Master Hardware and firmware version Temperature 7 Appendix │ 63...
Terminology and general abbreviations ● Width across flat Attachment point ● Point at which the Logger is attached to the pipe or fitting i.e. where it makes physical contact with the water pipe network Background noise ● Unwanted electromagnetic radiation from various sources (e.g. street lamps) Character set ●...
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Installation location ● Location in the water pipe network where a Logger is installed for the acquisition of measurement data Logger data ● Data that identifies a Logger ● A distinction is made between: General data (battery capacity, device number, next device service due, firmware version), radio times (days, start, duration, patrol type, economy mode) and measurement times (date, time, duration, interval,...
Width ● Standard deviation of measurement data Abbreviations in the firmware Delete DEVNO Device number Daylight Saving Time Hist. graph History graph Insert Last Min. Last minimum LAST MIN. NOISE Last minimum noise levels LEVELS Location Log.identification Logger identification Meas. results Measurement results Meas.
Allocated EWC waste code Device 16 02 13 Disposable battery, 16 06 05 rechargeable battery End-of-life equipment Used equipment can be returned to Hermann Sewerin GmbH. We will arrange for the equipment to be disposed of appropriately by certified specialist contractors free of charge. 68 │ 7 Appendix...
8 Index Index Function keys 17 Activation switch 9 Alarm level 35 Antenna 13 Graphics 29 Automatic shut down (Master) 49 History 45 Buzzer (Master) 49 Illumination (Master) 49 Changing the batteries 15 Installation instructions 12 information on 27 Installing, Logger at measurement Characterizing frequency of measure- location 11 ment 26...
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8 Index unprogrammed 41 Logger communication 31 Online measurement 38 Logger configuration 32 ON/OFF key 17 measurement times 33 Operation miscellaneous 35 master 17 radio times 34 mobile 4, 6 Logger data 38 overview 4 features 31 stationary 4, 6 Logger database 44 Logger identification (Master) 49 Logger management 44 Logger selection 36...
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8 Index Single Logger 36 data transmission 40 Standard settings 42 Supporting bracket 13 Text field 19 Time (Master) 48 Type 33 Use, intended 2 Vehicle, Master in 14 Warning prompts 18 Width 26...
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