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SonarMite BTx/SPx v5.02 © 2016 Lymtech 

 

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SONARMITE v5.xx  

BTX/SPX single beam 

PORTABLE BLUETOOTH ECHO SOUNDER 

 

 

 
 

Ohmex is a company formed to manufacture and distribute products designed by Lymtech Ltd. a company established in 1982 w 
founded on technological innovation and design. The company prides itself on being the first to produce products in the field of 
instrumentation and software used within the  Earth Science sectors. Achievements to date include DGM ,the first digital ground 
modelling  software  to  run  on  a  standard  PC,  SONARLITE,  the  first  truly  portable  echo  sounder,  TIDALITE  the  first  portable 
Tide  Gauge,  EDAS,  Integrated  tide  and  weather  networked  software  for  use  by  ports  and  harbours.  SONARMITE  the  first 
portable Bluetooth echo sounder based on WinSTRUMENTATION - The integration of Instrumentation, Wireless networks and 
modern portable computer equipment.

  

 

 

 

Summary of Contents for SONARMITE

Page 1: ...ce products in the field of instrumentation and software used within the Earth Science sectors Achievements to date include DGM the first digital ground modelling software to run on a standard PC SONARLITE the first truly portable echo sounder TIDALITE the first portable Tide Gauge EDAS Integrated tide and weather networked software for use by ports and harbours SONARMITE the first portable Blueto...

Page 2: ... more conventional instrument without all the features of the full system The SonarMite extends this idea of a rugged design and minimalist interface to produce a Blue Box system where the user interface is provided by integrated software running on a portable computer connected via a Bluetooth link The use of wireless technology enables the instrument to be waterproof and used in a hostile enviro...

Page 3: ...urvey sounder is a narrow beam width to prevent averaging of the returned signal 235KHz Active Transducers The SonarMite uses Active Transducers these are digital as opposed to analogue components and use microprocessors to synthesize transmitted frequencies and to interpret the return signals The devices incorporate state of the art DSP and filtering techniques to reduce noise and improve depth t...

Page 4: ...66 depth transducer c w 5m cable and embedded processor Serial data lead IP68 rugged plastic Transit case SonarW7 post process import export software SonarMite BTX single beam echo sounder The following is a short list of accessories for the SonarMite SonarMite Windows Mobile PDA software SonarMite W7 software for Tablet Portable PC USB serial data lead Aluminium shoe to connect transducer to deta...

Page 5: ... unit c w 1 5m 12v battery leads Smart P66 depth transducer c w 5m cable and embedded processor D9 Serial data lead SonarW7 post process import export software SonarMite SPX single beam echo sounder The following is a short list of accessories for the SonarMite SonarMite Windows Mobile PDA software SonarMite W7 software for Tablet Portable PC USB serial data lead Aluminium shoe to connect transduc...

Page 6: ... equipment such as the HyDrone RCV Power is provided by an external 12 24vDC battery or source the internal power circuit is protected against reverse polarity connection SonarMite BTX OEM single beam echo sounder The SonarMite OEM variants are supplied as per the standard versions but without the following items of equipment Internal rechargeable batteries external power Universal EU US UK batter...

Page 7: ...ngle beam systems in the same format as the previous SonarMite BT SP and SonarM8 systems As with the previous SonarMite versions every measured depth is accompanied by a QA value which can be used for post analysis of the survey data INSTALLATION USE This chapter describes how the SonarMite Portable Echo Sounder would normally be installed and used The typical way in which the device can be used f...

Page 8: ...sound in water and hence the depth calculated from this time by the SonarMite The user can either measure the speed of sound in water by taking velocity profiles using a dedicated velocity measuring device or can use the SonarMite static over a known depth to a flat firm base and then compare the measured value with the known depth The difference in Sound Velocity between warm fresh water and cold...

Page 9: ...SonarMite BTx SPx v5 02 2016 Lymtech Page 9 WARNING Only the correct NiMh battery charger should be used with the SonarMite ...

Page 10: ...SonarMite BTx SPx v5 02 2016 Lymtech Page 10 ...

Page 11: ...onform to the IP65 waterproofing standard this benchmark describes equipment which can withstand a light spray of water from a hose for a short period of time it does not imply the device is suitable for immersion in any depth of water or exposed to prolonged harsh weather conditions The weatherproofing also assumes the connectors or cover caps are fully screwed on to their rubber sealing rings Th...

Page 12: ...mounting to transom angles from 2 to 22 Integral release bracket protects against impact damage mounts with 3 screws and provides 12 mm of vertical adjustment Chemical and impact resistant plastic housing Designed to meet CE requirements Shielded piezoceramic element for noise free echo sounder display Standard minimum cable length 5 0 m 16 feet Transom Mounting Transducer Transducer Mounting When...

Page 13: ...e calculation of X Y offset to zero Example Transducer Mountings Typical rubber boat mounting Avoid Stressing Transducers The Active Transducers include piezoelectric elements which are embedded within a resin compound If the user has to fabricate a custom mounting for the transducer a very common requirement given the vast permutations of boats in which surveys are performed avoid using a fixing ...

Page 14: ...ssword code In some instances the local Bluetooth interface may request a password ID to set up pairing with the device for BTX SPX version devices the pin number is always set to 1234 numeric one two three four Typical PC Bluetooth software Bluetooth Serial Port Profile Bluetooth Serial provides either a Bluetooth slave or master connection fully supporting the SPP Serial Port Profile Features Fu...

Page 15: ...DA The Bluetooth Serial Terminal will connect to any Bluetooth enabled device supporting SPP This can be in MASTER mode where the terminal initiates the connection or SLAVE mode where the remote device initiates the connection The method of connection will vary depending on the remote device However generally the other device will perform a four stage process The remote device will discover other ...

Page 16: ...serial interface which can connect to a computer using RS232 protocol The default settings are 4800 Baud Rate 8 Bit 1 Stop Bit No Parity Example Serial Cable Example USB adaptor cable Using the slower baud rate of 4800 allows the serial cable to be extended so that the computer can be up to 20m away from the echo sounder ...

Page 17: ...SonarMite BTx SPx v5 02 2016 Lymtech Page 17 Typical Windows HyperTerminal settings Hyperterminal ASCII settings Hyperterminal Connection settings ...

Page 18: ...of the machine referred to as the Transducer or TXR and Computer or PC connections There are no user connections or serviceable parts within the SonarMite body itself PC or Computer connection This 6 way female connector is used to connect to either a PC serial connection or for an incoming message in the polled mode connection ...

Page 19: ... 02 2016 Lymtech Page 19 Transducer connection This 6 way male connector is used to connect to the SonarMite transducer the same connection is also used for the battery charger connector Transducer and Computer connections ...

Page 20: ...ors one for current status information the other for Bluetooth connection on off Front Panel status LEDs Connector Caution The MIL spec connectors have a locking ring and also a retaining clip Trying to remove the connector by unscrewing the retaining clip will twist the internal cable and could cause a serious fault ...

Page 21: ...trument Flash Memory The instrument contains an area of configuration data held within its semi permanent FLASH memory area On running the instrument this data is copied into the current working RAM area of the processor Pressing any of the configuration command characters will only change the current active states enabling the user to sample output unil the Save command is used to store the curre...

Page 22: ...le in the SYS format Memory Operations R eset Pressing R Contol R will reset the SonarMite to its default values these values are saved in Flash memory and set in current working RAM memory only available in the SYS output mode L oad Pressing L Contol L will reload the Flash memory into the current working memory only available in the SYS output mode S ave Pressing S Contol S will save the current...

Page 23: ...utput Output Parameters Output message is eight numeric ASCII parameters floating format space delimited as id depth roll pitch heave battery qa flags cr lf where id The id number of the instrument 0 7 depth current measured depth m roll current roll lateral atitude deg pitch current pitch axial atitude deg heave current heave depth correction m battery current battery condition v qa current depth...

Page 24: ...M 67 SMDBT 1 6 f 0 48 M 5C SMDBT 1 6 f 0 48 M 5C SMDBT 1 6 f 0 48 M 5C SMDBT 1 6 f 0 48 M 5C SMDBT 1 6 f 0 48 M 5C SMDBT 1 6 f 0 48 M 5C Example NMEA DBT Output Format 3 DPT NMEA mode e g SMDPT 1 81 0 0 66 SMDPT 0 48 0 0 62 SMDPT 0 48 0 0 62 SMDPT 0 48 0 0 62 SMDPT 0 48 0 0 62 SMDPT 0 48 0 0 62 SMDPT 0 48 0 0 62 Example NMEA DPT Output Format 4 Odom SBT mode e g et 47 Example Odom Output ...

Page 25: ... Output Format 7 mode used for system settings SYS 54 0 48 109 109 0 116 1500 0 2 0 SYS 15 0 48 109 109 0 116 1500 8 9 0 SYS 13 0 48 109 109 0 115 1500 8 9 0 SYS 14 0 48 109 109 0 116 1500 8 9 0 SYS 14 0 48 109 109 0 116 1500 8 9 0 SYS 14 0 48 109 109 0 116 1500 8 9 0 Example System Output Format 8 New SonarMite format e g 1 1 88 12 7 128 20 1 0 48 8 9 115 0 1 0 48 8 9 115 0 1 0 48 8 9 115 0 1 0 4...

Page 26: ...dense cold water only available in the SYS output mode This is a dangerous function and will change calibration values if saved D own Decrease the sound velocity setting for lighter fresh warm water only available in the SYS output mode This is a dangerous function and will change calibration values if saved C lear Reset output to format 0 used by external programs B Set output to new format 8 use...

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