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sewerin SeCorr C 200 Operating Instructions Manual

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SeCorr
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C 200 receiver
RT 200 transmitter
Operating Instructions

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  • Page 1 SeCorr ® C 200 receiver RT 200 transmitter Operating Instructions...
  • Page 2 C 200 receiver Connectors Light sensor Touch screen Connectors Fig. 1: C 200 receiver without aerial, front Charging socket USB port Microphone socket ON/OFF key Aerial C 200 receiver, top view Fig. 2:...
  • Page 3 RT 200 transmitter Aerial with knob and flag Charging socket Fig. 3: Transmitter 1 with blue flag and transmitter 2 with orange flag Bandpass display Filter key Aerial connector Light key RT 200 transmitter without aerial, top view Fig. 4: Microphone socket Fig.
  • Page 4 Information about this document The warnings and notes in this document mean the following: WARNING! Risk of personal injury. Could result in serious injury or death. CAUTION! Risk of personal injury. Could result in injury or pose a risk of health. NOTICE! Risk of damage to property.

  • Page 5: Table Of Contents

    Introduction ................1 Warranty ..................1 Purpose ..................2 Intended use ................2 General safety information ............3 Radio communication ..............4 SeCorr system .................5 General information about the system ........5 System components ..............5 2.2.1 Overview ................5 2.2.2 C 200 receiver ................6 2.2.2.1 Setup ...................6 2.2.2.2 Carrying the system ............8 2.2.2.3 Automatic power off ............9...
  • Page 6 Performing a measurement .............25 3.4.1 Starting a measurement ............26 3.4.1.1 Starting the measurement after configuring pipe sections 26 3.4.1.2 Continuing measurement ..........26 3.4.1.3 Repeating a measurement ..........27 3.4.2 Stopping a measurement .............27 3.4.3 Saving a measurement ............27 3.4.3.1 Loading a saved measurement .........28 3.4.3.2 Deleting a saved measurement ........30 Optimising the correlation result using filters ......31...
  • Page 7 4.3.1 General ................53 4.3.1.1 Units ..................53 4.3.1.2 Interference suppression...........53 4.3.1.3 Correlation curve ...............54 4.3.1.4 Blocking filter ..............54 4.3.2 Filter basis ................54 4.3.2.1 Coherence.................55 4.3.2.2 Cross spectrum ..............55 4.3.2.3 Spectrum 1 or Spectrum 2 ..........55 4.3.2.4 Sound velocity ..............55 4.3.3 Pipe data (Default) ...............56 4.3.3.1 Length ................56 4.3.3.2...
  • Page 8 Care ..................68 Maintenance ................68 Appendix ................69 Technical data .................69 6.1.1 C 200 receiver ..............69 6.1.2 RT 200 transmitter..............71 6.1.3 UM 200 universal microphone ..........73 6.1.4 HY 200 hydrophone .............74 Symbols on the touch screen of the C 200 receiver ....75 Significance of LED signals .............77 6.3.1 C 200 receiver ..............77...

  • Page 9: Introduction

    ● 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 broadened by this information.

  • Page 10: Purpose

    Purpose SeCorr is a system used for correlation. The SeCorr system can be used for: ● Detecting leaks in water pipes Note: All descriptions in these operating instructions refer to the system as delivered (factory settings). The operating instructions apply to the C 200 receiver with firmware version 2.x and higher.

  • Page 11: General Safety Information

    General safety information This product was manufactured in keeping with all binding legal and safety regulations. It corresponds to the state of the art and complies with conformity requirements. The product is safe to operate when used in accordance with the instructions provided. However, if you handle the product improperly or not as intend- ed, the product may present a risk to persons and property.

  • Page 12: Radio Communication

    ● Switch off the transmitters when not in use. SDR radio Receivers and wireless headphones communicate by bidirection- al SDR (SDR: Sewerin Digital Radio). SDR is only used when listening to noises. For more detailed information about the special features of this radio connection, please refer to section 3.7.1 on page 42.

  • Page 13: Secorr System

    SeCorr system General information about the system The SeCorr system works using the correlation method, whereby measurements are taken at two fittings (e.g. slide gate, hydrant) at the same time. Highly sensitive microphones record the nois- es at the fittings. The two microphones are each connected to a radio transmitter.

  • Page 14: C 200 Receiver

    ● F8 wireless headphones (optional) ● AC 200 SK 4 case The system can be transported and stored in the case. The batteries for the components C 200, RT 200 and F8 can be si- multaneously charged in the case using the AC/DC adapter L. Accessories can be added to the system at any time.
  • Page 15 NOTICE! Risk of damage The surface of the touch screen is sensitive. ● Do not use any hard or sharp objects (e.g. pens) to operate the screen. ● Protect the touch screen against aggressive substances (e.g. acidic or abrasive detergents). An overview with the symbols that might appear on the touch screen can be found in section 6.2 on page 75.

  • Page 16: Carrying The System

    The receiver is usually carried in front of the body so that the user looks diagonally down at the touch screen. SEWERIN recommends: Use a carrying system for locating op- erations. The carrying system prevents you from tiring during work. It also reduces the possibility of radio interference. Ra- dio interference can occur if the user accidentally covers certain components in the receiver.

  • Page 17: Automatic Power Off

    2.2.2.3 Automatic power off The power supply to the receiver is designed in such a way that a fully charged battery will allow one full day‘s work without in- terruption. However, it is still recommended to conserve energy whilst working. The receiver therefore offers the following automatic power-off options: ●...
  • Page 18 Fig. 8: Results display (detail of main view) The following is shown in the centre of the main view (fig. 8): ● Leak position Distance of leak from transmitter 1 and transmitter 2 ● Quality of peak ● Duration of measurement The main view also contains the following buttons: ●...
  • Page 19 Fig. 9: Measurement button at various stages of the program Top image: A measurement can be started. Centre image: A measurement can be stopped. Bottom image: The calculation data must be reset before a measurement can be started. For more detailed information on performing measurements, please refer to section 3.4 on page 25.
  • Page 20 Fig. 11: Transmitter button The Transmitter menu is opened by pressing the Transmitter button. The following settings can be made in this menu: ● Transmitters from which noises can be heard through head- phones ● Volume of noise on headphones Information about the two transmitters is also displayed.
  • Page 21 Fig. 12: Pipe sections button, here: Measuring section with three pipe sections Top image: Before starting a measurement. Bottom image: After starting/stopping a measurement The Pipe sections menu is opened by pressing the Pipe sec- tions button. The following settings can be made in this menu: ●...
  • Page 22 Fig. 13: Filter button The Filter menu is opened using the Filter button. This menu allows you to optimise the correlation result using filters. For more detailed information on filters, please refer to sec- tion 3.5 on page 31. Settings The Settings button displays the following information: ●...

  • Page 23: How Interference Suppression Works

    For more detailed information on the Settings menu, please refer to section 4 on page 49. 2.2.2.5 How interference suppression works The interference suppression function allows you to exclude nois- es from the correlation that may have a negative effect on the result (e.g.

  • Page 24: Setup

    Note: The C 200 receiver uses the same number and colour assign- ment, e.g. when displaying results. 2.2.3.1 Setup Overviews with the names of all the parts of the transmitter can be found inside the front cover (fig. 3 to fig. 5). Ports The transmitter features the following ports: ●...

  • Page 25: Switching The Transmitter On And Off

    ● Low pass Allows all signals below a limit fre- quency through. Blocks any signals above the limit frequency. ● Default Allows all signals through. ● High pass Allows all signals above a limit fre- quency through. Blocks signals be- low the limit frequency.

  • Page 26: Microphones

    For more detailed information about the plug connection between the microphone and the transmitter, please refer to section 2.5 on page 20. 2.2.4 Microphones The microphones record noises at the measurement locations. This data is then sent to the transmitters via cable. The system can be used with different microphones.

  • Page 27: Hy 200 Hydrophone

    CAUTION! Danger when using the contact adapter The contact adapter contains a strong magnet. ● Keep the contact adapter away from magnetic storage media (e.g. hard drives, credit cards) and medical de- vices (e.g. pacemakers, insulin pumps). The contact adapter is supplied with a short-circuit disc. ●...

  • Page 28: Transmitter

    2.3.2 Transmitter Switching on The transmitter automatically switches on as soon as a micro- phone is connected. Switching off The transmitter automatically switches off as soon as the micro- phone is disconnected from the transmitter. For more detailed information about the plug connection between the microphone and the transmitter, please refer to section 2.5 on page 20.

  • Page 29: Power Supply To The Components

    The battery compartments of the components contain parts that could get damaged when the batteries are being replaced. ● Only SEWERIN service personnel or other authorised special- ists may replace rechargeable lithium-ion batteries. WARNING! Risk of explosion due to short-circuit Faulty lithium-ion rechargeable batteries can explode due to internal short-circuit.

  • Page 30: Using The System

    Using the system Preparing the system Two suitable measurement locations must be found depending on conditions on the ground. Suitable measurement locations include, for example, fittings or the pipe itself. 1. Attach a microphone to each of the measurement locations. −...

  • Page 31: Setting The Number Of Pipe Sections

    Note: The quality of the correlation result depends greatly on the con- figuration of the pipe sections. ● Make sure you configure the pipe sections completely and cor- rectly in accordance with the conditions on the ground. ● Adjust the settings before starting the measurement. Any changes made after the start of a measurement will mean that it will not be possible to continue the measurement afterwards.

  • Page 32: Adding A Pipe Section

    3.3.1.1 Adding a pipe section The first pipe section is set on transmitter 1. ● Up to four more pipe sections can be added between the first pipe section and transmitter 2. ● New pipe sections are added to the right of the selected pipe section.

  • Page 33: Adjusting The Pipe Data

    3.3.2 Adjusting the pipe data Pipe sections are characterised by the following features: ● Length of pipe ● Diameter of pipe ● Pipe material ● Sound velocity in the pipe section Adjoining pipe sections in a measuring section can have different pipe data.

  • Page 34: Starting A Measurement

    3.4.1 Starting a measurement Note: The quality of the correlation result also depends on the general noise level at the start of a measurement. ● Wherever possible, try to start a measurement when there is no loud sound interference in the background (e.g. no passing vehicles, extraction from house connections).

  • Page 35: Repeating A Measurement

    3.4.2 Stopping a measurement Ongoing measurements can be stopped at any time. In order to achieve a reliable result, SEWERIN recommends: Not stopping the measurement until the marker, leak position and quality of the peak stop changing. The main view is open. A measurement is ongoing.

  • Page 36: Loading A Saved Measurement

    Saved measurements are indicated by: ● Date (day and time measurement was saved) ● Optional: Comment The main view is open. The measurement was stopped 1. Tap the File button. The File menu will appear. 2. Tap the Save button. The Comment menu appears. 3.
  • Page 37 Fig. 18: Load menu Top left: Filter by date button Centre: List of saved measurements 3. Tap the relevant measurement in the list. The measurement will immediately appear in the main view. Searching for saved measurements Date filters can be set in the list of saved measurements to search for specific measurements.

  • Page 38: Deleting A Saved Measurement

    The list will show all the measurements that match the search criteria. The date filter settings are displayed on the Filter by date. Fig. 19: Filter by date button Left image: No date filter set Right image: Date filter set (year: 2019, month: 01 January) 3.4.3.2 Deleting a saved measurement Saved measurements can be deleted individually.

  • Page 39: Optimising The Correlation Result Using Filters

    5. Finally, disable delete mode. ● To do this, tap the Clear button again. Delete mode is dis- abled. The dot on the Clear button turns grey again. The measurements in the list appear in black. ● Tap Back. Optimising the correlation result using filters Note: The SeCorr system has filter options for various purposes.
  • Page 40 Fig. 20: Filter menu Top: Frequency graph Centre: Correlation curve Bottom: Result of measurement and quality of peak Right (top to bottom): Lower filter limit, Current filter, here: Auto 1 Available filters Various filters can be applied. The options are: ●...

  • Page 41: Frequency Graph

    3.5.1.1 Frequency graph The receiver displays the spectra of the noises in the frequency graph. Fig. 21: Frequency graph 1 Frequency axis, 2 Lower stopband, 3 Lower filter limit, 4 Graph of functions, 5 Passband, 6 Upper filter limit, 7 Upper stopband In the settings you can specify whether to display one or two functions (Measurement menu >...

  • Page 42: Correlation Curve

    3.5.1.2 Correlation curve The run time difference between the signals of the two transmit- ters is displayed in the correlation curve. Fig. 22: Correlation curve with marker (red rectangle) The area around the highest peak of the curve is marked with a red rectangle.

  • Page 43: Selecting Automatically Calculated Filters

    Automatic filters are always recalculated when the Filter menu is opened. Opening the filter menu The main view is open. ● Tap the Filter button. The Filter menu appears (fig. 20). Note: Any ongoing measurements will be stopped when the Filter menu is opened.
  • Page 44 Performing a quick filter adjustment A quick adjustment involves resetting both filter limits. The Filter menu is open. 1. Tap the frequency graph (fig. 21). − as accurately as possible. The Filter menu will change its appearance (fig. 24). The first filter limit is set.
  • Page 45 Fig. 25: Filter – Zoom menu: Exact filter adjustment With the Upper filter limit, Lower filter limit (right) Left image: and Zoom (centre) buttons Right image: With the Confirm button The Filter menu is open. 1. Tap the Filter limits button. The receiver will switch to the Filter Zoom menu (fig.

  • Page 46: Applying The Filters (Exiting The Filter Menu)

    Fig. 26: Filter menu: After manual adjustment, the Manual symbol ap- pears under the Filter limits button. 3.5.2.3 Applying the filters (exiting the Filter menu) The settings can be applied once the filter limits have been ad- justed. The Filter menu is open. ●...

  • Page 47: Hide Peak

    The Filter menu is open. 1. Tap the correlation curve. The receiver will switch to the Cor- relation menu (fig. 27). 2. Place the marker on another peak. Tap the desired position in the correlation curve. 3. Read the newly calculated position. 4.

  • Page 48: Sound Velocity Measurement

    3. Select the area you want to hide. a) Tap the correlation curve to set the first limit. b) Tap the correlation curve again to set the second limit. The hidden area is displayed in orange. 4. Tap Back. The settings are applied. The receiver will switch to the Filter menu.

  • Page 49: Artificial Leak Outside Of The Measuring Section

    3.6.3.1 Artificial leak outside of the measuring section In the ideal case, it is possible to generate an artificial leak out- side of the measuring section. 1. Generate an artificial leak (e.g. open hydrant) outside of the measuring section. Open the Filter menu on the device. 2.

  • Page 50: Listening To Noises

    Information about the radio connection during listening The C 200 receiver and F8 wireless headphones communicate by bidirectional SDR (SDR: Sewerin Digital Radio). SDR transmits uncompressed signals in real time. Radio inter- ference can, therefore, cause a short clicking noise in the head- phones.
  • Page 51 ● Volume on the headphones ● Transmitter selection The microphone function can be opened if a microphone is con- nected to the receiver. Fig. 29: Transmitter menu without a connected transmitter Fig. 30: Transmitter menu with connected transmitters Top: Volume Centre: Transmitter selection Left/right:...

  • Page 52: Adjusting The Volume

    ● Bandpass setting ● Satellite reception Fig. 31: Information about the transmitter, here: Transmitter 1 From left to right: Radio signal, noise level, rechargeable battery, bandpass, satellite reception Note: The information is not constantly updated as radio transmission of the noise takes precedence. It can sometimes take up to 20s for changes to be displayed.

  • Page 53: Selecting A Transmitter

    Fig. 32: Adjusting the volume 3. Apply the settings by pressing Confirm. The receiver will switch back to the main view. The settings are stored until they are next adjusted. 3.7.4 Selecting a transmitter The noises from the two measuring points can be listened to together or separately.

  • Page 54: Microphone Menu (Overview)

    The microphone function can be used to listen to noises direct- ly at a measurement location. It can be used when there is no suitable technology available specifically for pinpointing or prelo- cation. Note: The microphone function cannot be used for correlation. The following system components are required for acoustic leak detection: ●...

  • Page 55: Performing A Noise Measurement

    Fig. 34: Display of measurement values (detail of Microphone menu) 1 Current minimum noise level 2 Current noise level 3 Previous minimum noise level The following measurement values are displayed (fig. 34): ● Current noise level ● Current minimum noise level ●...

  • Page 56: Locking And Unlocking The Display

    The receiver is switched on. The main view is open. 1. Connect a microphone (e.g. UM 200) to the microphone sock- et on the receiver. 2. Attach the microphone to a suitable measurement location. 3. Tap the Transmitter button. The Transmitter menu will ap- pear.

  • Page 57: Settings

    Settings Overview All settings are managed using the C 200 receiver. The settings can be changed at any time. The following menus are available: ● Measurement ● Device Setting actions The settings in the Measurement and Device menus are imple- mented as follows: ●...

  • Page 58: Selecting

    4.2.1 Selecting Fig. 36: Selecting a setting (sample diagram) Top: Setting selected Bottom: Setting not selected Selected settings are indicated by the tick symbol. 1. In one of the menus, tap on the menu item for which you wish to change the setting. A sub-menu will appear.
  • Page 59 Picklist Fig. 38: Picklist Values are set using the arrow keys. 1. Tap an arrow key. − The up key increases the value. − The down key decreases the value. 2. Apply the settings by pressing Confirm. The receiver goes back up a menu level. Numeric keypad Fig.

  • Page 60: Settings In The Measurement Menu

    Settings in the Measurement menu The settings in the Measurement menu apply to the measure- ments. General > Metric Units Anglo-American Interference suppression > high > Positive Correlation curve Positive & negative > 60 Hz Blocking filter 50 Hz Filter basis Coherence >...

  • Page 61: General

    The main view is open. 1. Tap the Settings button. The Settings menu appears. 2. Tap the Measurement button. The Measurement menu ap- pears. 3. Adjust the settings as required. The Measurement menu is divided into three views General, Filter basis and Pipe data (Default). Switch between the views using the Scroll buttons.

  • Page 62: Correlation Curve

    4.3.1.3 Correlation curve The correlation curve can be displayed in different ways. The options are: ● Positive Displays the magnitude of the positive and negative values. The correlation curve is above the x-axis. ● Positive and negative Displays both positive and negative values. The correlation curve oscillates around the x-axis.

  • Page 63: Coherence

    4.3.2.1 Coherence Coherence of noises transmitted by transmitters 1 and 2 to the receiver. The options are: ● Blue | Red Colour that can be selected for the graph. ● Off The function is not displayed. 4.3.2.2 Cross spectrum Cross power spectrum of noises transmitted from transmitters 1 and 2 to the receiver.

  • Page 64: Pipe Data (Default)

    The default values, which are automatically assigned to each new pipe section created, are set in the Pipe data (Default) view. SEWERIN recommends: When selecting default settings, choose typical values that commonly occur in your everyday work. For example, if you primarily work on cast iron pipes, set the material to cast iron.
  • Page 65 General Switch off device > 30 min Switch off backlight > 30 s 1 min 15 min 30 min Automatic brightness Brightness > … Time/Date > Time … Date > … Region Date format > DD.MM.YY YYYY-MM-DD MM-DD-YYYY > 12 h Time format 24 h Language...

  • Page 66: General

    4. Finally, tap Back. The Device menu appears. 5. Tap Back again to return to the main view. 4.4.1 General 4.4.1.1 Switching off the device The receiver can switch off automatically if it is not operated for a specified period of time. Note: This function helps save energy.

  • Page 67: Automatic Brightness

    4.4.1.3 Automatic brightness The brightness of the touch screen can automatically adjust to the ambient lighting conditions thanks to the light sensor. This means that the touch screen is clearly legible in every situation. This function can be enabled or disabled. ●...

  • Page 68: Region

    4.4.3 Region 4.4.3.1 Date format The date can be written in various ways. The options are: ● DD.MM.YY ● YYYY-MM-DD ● MM-DD-YYYY The letters refer to the following: D: day M: month Y: Year 4.4.3.2 Time format The time can be written in various ways. The options are: ●...

  • Page 69: Calibration

    4.4.4.2 Calibration The touch screen can be calibrated by the user. For more detailed information on calibration, please refer to sec- tion 5.3 on page 67. 4 Settings │ 61...

  • Page 70: Maintenance

    Maintenance Charging the batteries The batteries for the following components must be recharged when necessary: ● C 200 receiver (lithium-ion rechargeable battery) ● RT 200 transmitter (lithium-ion rechargeable battery) ● F8 wireless headphones (NiMH rechargeable battery) The typical charging time is less than 7.5 hours. The batteries are protected against overcharging.

  • Page 71: Charging Batteries Using The Ac/Dc Adapter Or Vehicle Cable

    Fig. 42: AC 200 SK 4 case White circles: Connection cable Black arrow: Connection socket (on the outside) 1. Place the components in the dedicated spaces in the case. 2. Connect the components using the connection cables. 3. Connect the case to the power supply using the AC/DC adapt- er L or vehicle cable L.

  • Page 72: Handling Faulty Lithium-Ion Rechargeable Batteries

    ● Lithium-ion batteries must only be removed if there is reason- able suspicion that they might be faulty. ● Only SEWERIN Service personnel or an authorised specialist may replace rechargeable batteries. 5.2.1 Identifying faulty batteries...

  • Page 73: Removing The Batteries From The C 200 Receiver

    5.2.2 Removing the batteries from the C 200 receiver NOTICE! Risk of damage There are parts in the battery compartment of the receiver which can be damaged mechanically or by electrostatic discharge when removing the batteries. ● Always read section 5.2 and section 5.2.1. ●...

  • Page 74: Removing The Battery From The Rt 200 Transmitter

    3. Disconnect the electrical supply to the faulty battery by pulling off the white plug. Never sever the cable. 4. Remove the battery. 5. Screw the battery compartment cover back on. 5.2.3 Removing the battery from the RT 200 transmitter The battery is located inside the device.

  • Page 75: Calibrating The Touch Screen

    Calibrating the touch screen The touch screen of the C 200 receiver is calibrated when it leaves the factory. If the touch screen responds incorrectly when operated, it can be recalibrated. Calibration involves two stages, which occur automatically in suc- cession.

  • Page 76: Care

    SEWERIN recommends: Always remove significant contamina- tion immediately. Maintenance SEWERIN recommends: Have the system serviced regularly by SEWERIN Service or an authorised professional. Only regular servicing can ensure that the system is always ready for use. 68 │ 5 Maintenance...

  • Page 77: Appendix

    Appendix Technical data 6.1.1 C 200 receiver Device data Dimensions (W x D x H) 225 x 62 x 155 mm Weight 1.2 kg Material polycarbonate (housing) Certificates Certificate FCC, CE, IC, MIC Marking Contains: FCC ID WSP-EZ1300102 IC 7994A-EZ1300102 Features Display 5.7"...
  • Page 78 AC/DC adapter L (charge in case) Data logging Filter automatic or manual Sampling rate 16 bit, 24 kHz Data transmission Near-field radio SDR (Sewerin Digi- tal Radio) Transmission frequency 433.9/434.4 MHz 2.408 – 2.476 GHz, 444.5500/444.9875 MHz 38 channels 458.5125 /458.7875 MHz 468.5/469.6 MHz Radio range >...

  • Page 79: Rt 200 Transmitter

    6.1.2 RT 200 transmitter Device data Dimensions 115 × 115 × 68 mm (W x D x H) 115 × 115 × 244 mm with aerial Weight 430 g (with aerial) Material polycarbonate (housing) Models country-specific Certificates Certificate FCC, CE, IC Marking –...
  • Page 80 Power supply Power supply lithium-ion battery (rechargeable) [1357- 0002], built-in Operating time, minimum > 8 h (23 °C) Battery power 24 Wh Charging time < 6 h Charging temperature 0 – 45 °C Charging voltage 12 V Charging current 1.2 A Charger AC/DC adapter L (charge in case) Measurement...

  • Page 81: Um 200 Universal Microphone

    Additional data Shipping instructions UN 3481: lithium-ion batteries contained in equipment or lithium-ion batteries packed with equipment net weight of battery/batteries: 0.098 kg 6.1.3 UM 200 universal microphone Device data Dimensions (H × Ø) 123 x 45 mm (without cable) Weight 1055 g Material...

  • Page 82: Hy 200 Hydrophone

    6.1.4 HY 200 hydrophone Device data Dimensions (W × H) 55 x 115 mm Weight 700 g (without cable) Material stainless steel Operating conditions Operating temperature -20 – 80 ºC Storage temperature -25 – 80 ºC Atmospheric pressure water pressure up to 16 bar Protection rating IP68 Non-permitted operating...

  • Page 83: Symbols On The Touch Screen Of The C 200 Receiver

    Symbols on the touch screen of the C 200 receiver The following tables provide an overview of what the main sym- bols represent. The symbols can also occur in combination dur- ing the program sequence. Many symbols on the touch screen can be displayed in different ways: ●...
  • Page 84 Symbol Significance Symbol Significance Volume low Noises from trans- mitter Volume high Noises from trans- mitter 1 Brightness Noises from trans- mitter 2 Brightness low No noises from transmitter Brightness high Listen to micro- phone Light on micro- Signal strength phone File Satellite reception...

  • Page 85: Significance Of Led Signals

    Significance of LED signals 6.3.1 C 200 receiver The LED indicates the operating status. Colour Type of sig- Activation Significance (repeat) Green Light perma- ● C 200 switched on nently on Flashing 0.1 s on > ● Battery charging 0.9 s off (ongoing) Double 0.1 s on >...

  • Page 86: Rt 200 Transmitter

    6.3.2 RT 200 transmitter The large LED between the two keys indicates operating statuses (see table below). The three small LEDs above the filter key indicate the bandpass setting. Colour Type of signal Activation Significance (repeat) Green Light perma- ● RT 200 switched on nently on Flashing 0.1 s on >...

  • Page 87: Troubleshooting

    Other accessories are available for the system. Please contact our SEWERIN sales department for further information. Declaration of conformity Hermann Sewerin GmbH hereby declares that the C 200 receiv- er and RT 200 transmitter fulfil the requirements of the following directive: ●...

  • Page 88: Licences In The Eea

    Licences in the EEA The RT 200 transmitter may only be used in the following coun- tries of the European Economic Area (EEA) and only at the cor- responding frequencies. Note: Also refer to the advice regarding near-field radio in section 1.5 on page 4.

  • Page 89: Note About The Firmware (Open Source Software)

    The firmware is based on open source software. The source code is provided in accordance with the licence terms for this open source software (GPL / LGPL). Sewerin GmbH stresses that it is not responsible for the source code and it does not form part of the services due.

  • Page 90: Index

    Index Acoustic leak detection 45 High pass 17 Aerial 17 Hydrophone 19 Auto 1 / Auto 2 32 Automatic power off 9 Information 60 Interference suppression Bandpass 16 active 15 Blocking filter 54 operating principle 15 Brightness 59 automatic 59 Language 60 LED 7, 17 Calculations, number of 14...
  • Page 91 17 carrying the system 8 connectors 8 ports 8 Units 53 switching off 9 Universal microphone 18 switch off backlight 9 Result display 10 optimising 31 Volume 44, 47 SDR (Sewerin Digital Radio) 4 Select 50 7 Index │ 83...
  • Page 92 Fax.: +351 234 024 446 Tel.: +34 91 74807-57 www.sewerin.com Fax: +34 91 74807-58 info@sewerin.pt www.sewerin.com info@sewerin.es Sewerin Sp. z o.o. Sewerin Ltd. ul. Twórcza 79L / 1 Hertfordshire 03-289 Warszawa, Polska Tel.: +48 22 675 09 69 Phone: +44 1462-634363 Tel.

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